Given resistors 3,486 and 760 connected in parallel, what is an equivalent resistor that could be used to replace both? (Calculate to one decimal places.)

Answers

Answer 1

The equivalent resistor for the resistors 3,486 and 760 connected in parallel is approximately 623.7 ohms.

To find the equivalent resistor for resistors 3,486 and 760 connected in parallel, you can use the formula:

1 / Req = 1 / R1 + 1 / R2

where Req is the equivalent resistor, R1 is the first resistor (3,486), and R2 is the second resistor (760).

Step 1: Calculate the reciprocals of the individual resistors:
1 / R1 = 1 / 3486 ≈ 0.000287
1 / R2 = 1 / 760 ≈ 0.001316

Step 2: Add the reciprocals together:
1 / Req = 0.000287 + 0.001316 = 0.001603

Step 3: Find the reciprocal of the sum to get the equivalent resistor:
Req = 1 / 0.001603 ≈ 623.7

The equivalent resistor for the resistors 3,486 and 760 connected in parallel is approximately 623.7 ohms.

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Related Questions

A bird in a tree vocalizes a sound that has a wavelength of 23 meters when the speed of sound is 338 m/s. What is the frequency of the sound the bird is making and can a normal human hear the bird?

Answers

Using the above values for the speed of sound and wavelength, the frequency of the sound produced by the bird in the tree is determined to be 14.7 Hz. A typical person is unlikely to be able to hear this sound.

How can you calculate a sound wave's frequency from its wavelength?

As with all waves, the relationship between the frequency and wavelength of sound is and its wavelength.

Does sound have a formula?

The following equation can be used to calculate sound intensity: P stands for pressure change or amplitude, D stands for material density, and VW stands for measured sound speed. The more your sound wave oscillates, the louder your sound will be.

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Which segment of copper wire has the highest resistance at room
temperature?
(1) 1.0 m length, 1.0 × 10-6 m² cross-sectional area
(2) 2.0 m length, 1.0 × 10-6 m² cross-sectional area
(3) 1.0 m length, 3.0 x 10-6 m² cross-sectional area
(4) 2.0 m length, 3.0 x 10-6 m² cross-sectional area

Answers

The segment of copper wire with the highest resistance at room temperature is segment (2), which is 2.0 m in length and has a cross-sectional area of 1.0 x [tex]10^{-6}[/tex] m².

What is the resistance?

The resistance of a conductor is given by the formula:

R = (ρL) / A

where R is the resistance, ρ is the resistivity of the material, L is the length of the conductor, and A is the cross-sectional area of the conductor.

Assuming that the resistivity of copper is constant, we can compare the resistance of the different segments of copper wire using the above formula.

We can calculate the resistance of each segment of copper wire as follows:

(1) R = (1.68 x [tex]10^{-8}[/tex] Ωm x 1.0 m) / (1.0 x [tex]10^{-6}[/tex] m²) = 0.017 Ω

(2) R = (1.68 x [tex]10^{-8}[/tex] Ωm x 2.0 m) / (1.0 x [tex]10^{-6}[/tex] m²) = 0.034 Ω

(3) R = (1.68 x [tex]10^{-8}[/tex] Ωm x 1.0 m) / (3.0 x [tex]10^{-6}[/tex] m²) = 0.0056 Ω

(4) R = (1.68 x [tex]10^{-8}[/tex] Ωm x 2.0 m) / (3.0 x [tex]10^{-6}[/tex] m²) = 0.0112 Ω

Therefore, the segment of copper wire with the highest resistance at room temperature is segment (2), which is 2.0 m in length and has a cross-sectional area of 1.0 x [tex]10^{-6}[/tex] m².

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Complete question is: The segment of copper wire with the highest resistance at room temperature is segment (2), which is 2.0 m in length and has a cross-sectional area of 1.0 x [tex]10^{-6}[/tex] m².

a coffee filter of mass 1.4 g dropped from a height of 4 m reaches the ground with a speed of 0.9 m/s^2 how much kinetic energy

Answers

The kinetic energy of the coffee filter is 0.63 x 10⁻³ J.

Kinetic energy is the energy possessed by a body by virtue of its motion, i.e. when the body is moving. So when the cofffee filter is dropped. it acquires kinetic energy because of its movement.

The kinetic energy of the coffee filter when it reaches the ground can be calculated using the equation:

K = (1/2) mv²

where m is the mass of the object and v is the velocity.

In this case, the mass of the coffee filter is 1.4 g and its velocity when it reaches the ground is 0.9 m/s.

Converting the mass into SI unit, we get mass = 1.4 x 10⁻³ kg

Therefore, the kinetic energy of the coffee filter is:

K = (1/2) x 1.4 x 10 ⁻³g x (0.9 m/s)² = 0.63 x 10⁻³ J



To summarize, the coffee filter of mass 1.4 g that is dropped from a height of 4m and reached the ground with a speed of 0.9 m/s² and has a kinetic energy of 0.63 x 10⁻³ J.

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The trachea is found ______ to the esophagus; connects the larynx to primary bronchi; inferiorly the trachea divides into right and left ______ ______.

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The trachea is found anterior to the esophagus; connects the larynx to primary bronchi; inferiorly the trachea divides into right and left main bronchi.

The trachea is around 10-12 cm long and 2-3 cm wide, and it is made up of cartilage rings that support the tube and keep it from collapsing during inhalation. Lining the trachea is ciliated mucosa, which captures and eliminates foreign particles and mucus from the respiratory system. Mucus is also secreted by the mucosa to assist moisten and warm the inspired air. The trachea splits inferiorly into right and left primary bronchi, which divide further into secondary and tertiary bronchi, finally delivering air to the lungs. The trachea is a tube.

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a ball is thrown vertically upward from a height of 4 feet with an initial velocity of 50 feet per second. how high will the ball go?

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The ball will reach a maximum height of 86 feet.

The ball is thrown vertically upward with an initial velocity of 50 feet per second.

Using the equation v2 = u2 + 2as, the maximum height that the ball will reach can be calculated as:

s = (v2 - u2) / 2a

where s is the maximum height, v is the final velocity, u is the initial velocity, and a is the acceleration due to gravity (9.81 m/s2).

Plugging in the values for u and v, we get s = (502 - 02) / 2(9.81) = 86 feet.


Therefore, the maximum height the ball will reach is 86 feet.

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what is the inductance of a coil if the coil produces an emf of 2.50 v when the current in it changes from -29.0 ma to 33.0 ma in 14.0 ms ?

Answers

The inductance of a coil, if the coil produces an emf of 2.50 V when the current in it changes from -29.0 mA to 33.0 mA in 14.0 ms, is 0.146 H.

Inductance of a coil The amount of electromotive force generated across a conductor when there is a change in the current flowing through it is defined as self-inductance.

The unit of inductance is the Henry (H), with the symbol L. The voltage induced in the coil is determined by the current passing through it, as well as the coil's inductance. Faraday's law of electromagnetic induction establishes a link between the two entities.

What is Faraday's law of electromagnetic induction?

The principle of electromagnetic induction is defined by Faraday's law, which states that the emf (electromotive force) produced by a change in magnetic flux linkage with time is proportional to the negative of the rate of change of magnetic flux linkage.

When there is a change in magnetic flux passing through a coil, this law predicts that an electromotive force is generated in it.

What is emf?

The acronym emf stands for electromotive force, and it represents the quantity of energy that drives current flow in a circuit. The unit of emf is the volt (V).

What is inductance?

The amount of electromotive force generated across a conductor when there is a change in the current flowing through it is defined as self-inductance.

The unit of inductance is the henry (H), with the symbol L.

What is the formula for the inductance of a coil?

The inductance of a coil is given by the formula: L = E/(di/dt)

Where L is the inductance of a coil E is the voltage induced in the coil di/dt is the rate of change of current passing through the coil.

Thus, the inductance of a coil, if the coil produces an emf of 2.50 V when the current in it changes from -29.0 mA to 33.0 mA in 14.0 ms, is 0.146 H.

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a 77.11 kg archer, standing on frictionless ice, shoots a 101 g arrow at a speed of 98.89 m/s. what is the recoil speed of the archer?

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The recoil speed of the archer is 2.07 m/s in the opposite direction of the arrow. This can be calculated using the conservation of momentum.

Momentum is defined as mass multiplied by velocity and is conserved during collisions.

The initial momentum of the archer-arrow system is 77.11 kg x 98.89 m/s = 7,624.14 kg m/s.

Since the arrow has a mass of 101 g, its velocity after the shot is 0 m/s, resulting in a final momentum of 7,523.14 kg m/s.

Since the total momentum is conserved, the velocity of the archer must be equal to the difference between the initial and final momentum divided by the mass of the archer: (7,624.14 - 7,523.14) / 77.11 = 2.07 m/s.

Therefore, the recoil speed of the archer is 2.07 m/s.

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A 2 kg mass moving to the right makes an elastic head-on collision with a 4 kg mass moving to the left at 4 m/s. The 2 kg mass reverses direction after the collision and moves at 3 m/s. The 4 kg mass moves to the left at 1 m/s. What was the initial velocity of the 2 kg mass?

Answers

Answer: That's a good question

Explanation:

assuming that the magnetic field is uniform between the pole faces and negligible elsewhere, write an expression for the induced emf in the coil.

Answers

The induced EMF (electromotive force) in a coil can be calculated using Faraday's Law of Electromagnetic Induction:

EMF = -N(dΦ/dt)

What is the induced emf?

In a uniform magnetic field, the flux through the coil can be calculated as:

Φ = BAcos(θ)

where B is the magnitude of the magnetic field, A is the area of the coil, and θ is the angle between the magnetic field and the normal to the coil.

Assuming that the coil is moving perpendicular to the magnetic field (θ = 0), the rate of change of flux is:

dΦ/dt = BA(d/dt)(cos(0))

= 0

Therefore, the induced EMF in the coil is zero.

However, if the coil is moving at an angle to the magnetic field, or if the magnetic field is changing in time, then the induced EMF will not be zero and can be calculated using the above equations.

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g a bird has a mass of 26 g and perches in the middle of a stretched telephone line. determine the tension when

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The bird with a mass of 26 g perches in the middle of a stretched telephone line. The tension in the wire is 0.12753 N.

To determine the tension when the bird is perching:

Tension is the force that stretches a string or a telephone line. The bird's weight will cause the wire to stretch by a certain amount. The weight of the bird can be calculated as follows:

Weight = mass × gravity

The weight of the bird is:

Weight = 26 g × 9.81 m/s2 = 255.06 g · m/s2 = 0.25506 N

This force will be evenly distributed across the wire, causing it to stretch evenly in all directions.

As a result, the tension in the telephone wire will be the weight of the bird divided by two. This is due to the fact that the weight of the bird is evenly distributed over the length of the wire. The tension formula is given as:

Tension = weight of the bird/2

Tension = 0.25506 N / 2 = 0.12753 N

Therefore, when the bird is perching in the middle of a stretched telephone line, the tension in the wire is 0.12753 N.

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the figure shows a 7.8 kg stone at rest on a spring. the spring is compressed 10 cm by the stone. what is the spring constant?

Answers

The spring constant is -764.4 N/m, which can be calculated by using the formula: k = -F/x, where k denotes the spring constant.

The following formula can be used to get the spring constant:

k = -F/x,

where k is the spring constant, F denotes the force, and x denotes the change in spring length.

In this case, the force F is the weight of the stone, which is 7.8 kg multiplied by the acceleration due to gravity g which is 9.8 m/s². Therefore, F = 7.8 kg × 9.8 m/s² = 76.44 N.

The spring is compressed by 10 cm which is 0.1 m.

When the formula's values are substituted, we obtain:

k = -F/x

= -76.44 N/0.1 m

= -764.4 N/m.

Therefore, the spring constant is -764.4 N/m.

As seen by the negative sign, the restoring force is acting in the opposite direction to that of the applied force.

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Calculate the resistance of copper wire 20 m long and diameter of 0.05cm

Answers

Answer:

the resistance of the copper wire 20 meters long and with a diameter of 0.05 cm is 0.342 ohms.

Explanation:

To calculate the resistance of the copper wire, we need to use the formula:

R = (ρ * L) / A

where R is the resistance of the wire, ρ is the resistivity of copper, L is the length of the wire, and A is the cross-sectional area of the wire.

The resistivity of copper is 1.68 × 10^-8 Ω·m.

First, we need to calculate the cross-sectional area of the wire:

A = π * (d/2)^2

A = π * (0.05cm/2)^2

A = 0.0019635 cm^2

Note that we converted the diameter from centimeters to meters, since the resistivity is given in ohms per meter.

Now, we can calculate the resistance of the wire:

R = (ρ * L) / A

R = (1.68 × 10^-8 Ω·m * 20m) / 0.0019635 cm^2

R = 0.342 Ω

Therefore, the resistance of the copper wire 20 meters long and with a diameter of 0.05 cm is 0.342 ohms.

an object is dropped and hits the ground 4.5 second(s) later. from what height, in feet, was it dropped?

Answers

The height from which the object was dropped and which hit the ground in 4.5 seconds later can be calculated by kinematic equation.

The kinematic equation that relates an object's height, initial velocity, acceleration, and time:

[tex]y = v_1*t + (1/2)at^2[/tex]

where 'y' is the height,

' v₁' is the initial velocity (which is zero when the object is dropped),

'a' is the acceleration due to gravity (which is approximately 9.8 m/s² or 32.2 ft/s²),

and 't' is the time it takes for the object to fall.

To use this equation, we need to make sure all of our units are consistent. We can convert the time given in seconds to seconds in units of feet by multiplying by 3.28, which is the number of feet per meter.

Substituting the values we have, we get:

[tex]y = 0 + (1/2)*32.2 ft/s^2 * (4.5 s * 3.28)^2[/tex]

Simplifying the equation, we get:

[tex]y = 0 + (1/2)*32.2 ft/s^2 * (67.86 ft)^2[/tex]

y ≈ 494 feet

Therefore, the object was dropped from a height of approximately 494 feet.

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one bullet is fired horizontally and a second bullet is simultaneously dropped from the same height. ignoring air resistance, which bullet will hit the ground first?

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Both bullets will hit the ground at the same time, regardless of their initial horizontal velocity or any other factors, as long as air resistance is negligible. This is because, in the absence of air resistance, the horizontal motion of the fired bullet does not affect the time it takes to fall to the ground.

When the two bullets are released at the same height, they both have the same initial vertical velocity of zero. Therefore, they will both experience the same acceleration due to gravity as they fall toward the ground, and reach the ground at the same time. This phenomenon is famously demonstrated by Galileo's experiment of dropping objects of different masses from the Leaning Tower of Pisa. Despite the different masses, they all hit the ground at the same time because they experience the same acceleration due to gravity.

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2. Use Evidence Based on your results in this activity, describe the characteristics of a circuit
that would carry the maximum amount of electric current. Include characteristics such as
voltage, wire diameter, wire length, wire temperature, and wire material.

Answers

A circuit that minimizes resistance will be able to carry the maximum amount of current.

What is Current?

It is defined as the amount of electric charge passing through a given point in a circuit in unit time. The SI unit of electric current is the ampere (A), which is defined as one coulomb of electric charge per second. Electric current can be either direct current (DC), which flows in one direction only, or alternating current (AC), which changes direction periodically.

Based on the results of this activity, a circuit that would carry the maximum amount of electric current should have:

High voltage: A higher voltage will cause a greater potential difference and push more electrons through the circuit.

Thicker wire diameter: A thicker wire diameter will have lower resistance, allowing more current to flow through the wire.

Shorter wire length: A shorter wire length will have lower resistance, allowing more current to flow through the wire.

Lower wire temperature: A lower wire temperature will have lower resistance, allowing more current to flow through the wire.

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Living things do not need natural resources for survival

Answers

All living things need energy to carry out their life processes, such as metabolism, movement, and growth. They obtain this energy from natural resources such as sunlight, food, and water. Additionally, living things require other natural resources such as oxygen, carbon dioxide, nitrogen, and minerals for various functions such as respiration, photosynthesis, and cellular processes.

Do living things need natural resources to survive?

Earth's natural resources include air, water, soil, minerals, fuels, plants, and animals. Conservation is the practice of caring for these resources so all living things can benefit from them now and in the future. All the things we need to survive, such as food, water, air, and shelter, come from natural resources.

What are the needs of living things for survival?

Living things need need air, water, food and shelter to survive. There is a difference between needs and wants. Students will be able to identify the four things that organisms need to survive. Students will realize through exploring the Nature Gardens that organisms' needs for survival are fewer than wants.

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it is observed that 2.53 coulombs of charge flow through a light-bulb over the course of 2.39 minutes. there are three light bulbs in the circuit, lined up one after the other. determine the amount of charge flowing through the third light bulb over the course of 9.80 minutes.

Answers

The amount of charge flowing through the third light bulb over the course of 9.80 minutes is 6.069C.

Since we know the relation between current and charge and also current is same in case of series connection and here three bulb connected in series.

I = q / t

given:

I = ?
q = 2.06 C

t = 2.59 minutes = 155.4 sec

I = 2.06 / 155.4 A

We have to find charge flow in 7.63 minutes

q = I x t

q = 2.06 / 155.4 x 7.63 x 60

q = 6.069C

In the field of physics, charge refers to a fundamental property of matter that describes the amount of electrical force that an object possesses. Charge is quantized, meaning that it comes in discrete units, and it can be either positive or negative. Objects that have the same type of charge (either positive or negative) repel each other, while objects with opposite charges attract each other. This is the basis for the behavior of electrical circuits, as well as the functioning of electronic devices.

Charge is also conserved, meaning that it cannot be created or destroyed, only transferred from one object to another. This is why electrical devices are designed to use energy efficiently, as any charge lost due to resistance in the circuit will be converted into heat and cannot be recovered.

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a sinusoidal wave is traveling along a rope. the oscillator that generates the wave completes 45.0 vibrations in 29.0 s. a given crest of the wave travels 400 cm along the rope in 12.0 s. what is the wavelength of the wave?

Answers

The wavelength of the sinusoidal wave traveling along a rope is calculated to be 21.5 cm.

The wavelength of a sinusoidal wave is defined as the distance between two consecutive crests or troughs. It can be started by finding the frequency of the oscillator that generates the wave:

frequency = number of vibrations / time

frequency = 45.0 / 29.0 s = 1.55 Hz

After this, we can find the speed of the wave:

speed = distance / time

speed = 400 cm / 12.0 s = 33.3 cm/s

The speed of a sinusoidal wave on a rope is related to its frequency and wavelength by the equation:

speed = frequency x wavelength

Therefore, we can rearrange the equation to solve for wavelength:

wavelength = speed / frequency

wavelength = 33.3 cm/s / 1.55 Hz

wavelength = 21.5 cm

Therefore, the wavelength of the wave is 21.5 cm.

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1st attempt rolling-circle replication of plasmids proceeds choose one: in opposite directions from multiple origin sites. in one direction from multiple origin sites. in one direction from a single fixed origin. in opposite directions from a single fixed origin.

Answers


Based on the given options, the correct answer is: "in one direction from a single fixed origin."

The 1st attempt rolling-circle replication of plasmids proceeds in one direction from a single fixed origin.

This process involves the initiation of DNA replication from a specific origin site on the plasmid.

The replication then proceeds in a circular direction, generating multiple copies of the plasmid.

Overall, plasmids are small, circular pieces of DNA that are separate from the chromosome.

They replicate independently of the chromosome and can carry genes that provide a selective advantage to the cell, such as antibiotic resistance.

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what law(s) in physics can be used to explain the behaviors of the carts, in this interactive, whether or not the collision was elastic or inelastic?

Answers

The laws of physics that can be used to explain the behaviors of the carts in this interactive, whether or not the collision was elastic or inelastic, are the laws of conservation of momentum and conservation of energy.

The law of conservation of momentum states that the total momentum of the objects before the collision is equal to the total momentum of the objects after the collision.

The law of conservation of energy states that the total energy of the system remains constant, regardless of the type of collision that takes place.

If the collision is elastic, then the total kinetic energy of the objects before and after the collision is equal. If the collision is inelastic, then the total kinetic energy of the objects after the collision is less than before the collision.

This law applies to both elastic and inelastic collisions. Conservation of energy also applies to both elastic and inelastic collisions. In elastic collisions, the kinetic energy is conserved.

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jake is traveling west on a highway. at 1:00 pm, jake passes the mile marker 485. at 4:30 pm, he passes mile marker 154. what is jake's average velocity?

Answers

Jake's average velocity is 94.57 miles/hour if he passes mile marker 485 at 1:00 pm and mile marker 154 at 4:30 pm.

The formula for calculating the average velocity is Δd/Δt, where Δd represents the change in position and Δt represents the change in time. The change in position is the distance between the two-mile markers can be calculated as:-

485 miles - 154 miles = 331 miles.

The change in time is the difference between the two times can be calculated as:-

4:30 pm - 1:00 pm = 3.5 hours.

Now substitute the values into the formula:-

Average velocity = Δd/Δt = 331 miles / 3.5 hours = 94.57 miles per hour.

Therefore, Jake's average velocity is 94.57 miles per hour.

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to start in motion an object sitting at rest on a horizontal surface, the horizontal force applied must be

Answers

To start in motion an object sitting at rest on a horizontal surface, the horizontal force applied must be greater than the static friction force present.

This static friction force is the force that holds the object in place, and is equal to the coefficient of static friction multiplied by the normal force.

Therefore, if an object has a static friction coefficient of 0.2 and a normal force of 10 Newtons, then the minimum horizontal force required to start in motion the object is 2 Newtons.

The static friction is the force that opposes the initiation of motion between two surfaces in contact that are at rest relative to each other. The magnitude of the static friction force depends on the nature of the surfaces in contact and the force pressing them together.

Once the applied force exceeds the static friction force, the object will begin to move, and kinetic friction will take over.

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suppose you want to connect a capacitor to a single 10.0-v battery. 1) what capacitance do you need to store 12.0 c of charge? (express your answer to three significant figures.)

Answers

To store 12.0 C of charge, you would need a capacitor with capacitance of 1.20 F.

Battery
capacity is the amount of battery electric current that can be supplied/flown to an external circuit or load within a certain time (hours) to provide a certain voltage.

The capacitance required to store 12.0 C of charge in a capacitor connected to a single 10.0 V battery can be calculated using the formula,

Q = CV

where Q is the charge, C is the capacitance, and V is the voltage. Rearranging this equation, we get,

C = Q/V

Plugging in the given values, we get,

C = 12.0C/10.0V = 1.20 F

Therefore, the capacitance required to store 12.0 C of charge is 1.20 F (to three significant figures).

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what is the heat flux (w/m^2), due to radiation heat transfer, from a black body if the surface temperature is 600c? the convection heat transfer coefficient is 55 w/(m^2 c).

Answers

The total heat flux from the black body is 42643 W/m², due to radiation heat transfer, from a black body if the surface temperature is 600°C.

The heat flux due to radiation heat transfer from a black body can be calculated using the Stefan-Boltzmann law, which states that the heat flux is proportional to the fourth power of the temperature:

[tex]q(rad) = \sigma * \epsilon * A * T^4[/tex]

Where q(rad) is the heat flux (W/m²), σ is the Stefan-Boltzmann constant ([tex]5.67 * 10^{-8[/tex] W/m²K⁴), ε is the emissivity of the black body (assumed to be 1 for a perfect black body), A is the surface area of the black body, and T is the temperature in Kelvin.

To convert the temperature of 600°C to Kelvin, we add 273.15 K:

T = (600 + 273.15) K = 873.15 K

Assuming the black body has a unit surface area (A = 1 m²), the heat flux due to radiation can be calculated as:

[tex]q(rad) = \sigma * \epsilon * A * T^4 = 5.67 * 10^{-8} * 1 * 1 * (873.15)^4 = 14098[/tex] W/m²

The heat flux due to convection can be calculated using the following equation:

q(conv) = h * (T(surface) - T(air))

Where q(conv) is the heat flux (W/m²), h is the convection heat transfer coefficient (55 W/(m²°C)), T(surface) is the surface temperature (600°C), and T(air) is the air temperature (assumed to be 25°C).

To convert the surface temperature and air temperature to Kelvin, we add 273.15 K:

T(surface) = 600 + 273.15 = 873.15 K

T(air) = 25 + 273.15 = 298.15 K

Substituting the values, we get:

q(conv) = 55 * (873.15 - 298.15) = 28545 W/m²

Therefore, the total heat flux from the black body is:

q(total) = q(rad) + q(conv) = 14098 + 28545 = 42643 W/m²

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A ramp is 4 meters tall and has a mechanical advantage of 2.5 what is its length? HELP

Answers

We must use the mechanical advantage formula to determine the length of the ramp:

Output force minus Input force equals Mechanical Advantage (MA). In this instance, the input force is the force required to hoist the object in the absence of the ramp, and the output force is the weight of the object being raised up the ramp

How do you determine a ramp's mechanical advantage?

By dividing the length of the slope by its height, you may calculate the optimal mechanical advantage of an inclined plane. The ideal mechanical advantage of a ramp, for instance, is 3 metres 1 metre, or 3 metres, if you are loading a truck that is 1 metre high utilising it.

How is the mechanical advantage determined?

Basic Machines' Mechanical Advantage and Efficiency Calculated. The IMA is typically calculated as the resistance force (Fr) divided by the effort force (Fe). IMA is also equal to the product of the load's travel distance (d) and the distance over which the effort is applied (de).

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if a planet were orbiting the sun in an orbit two times as far as its current orbit, how many times longer would it take the planet to go around the sun, as compared to now?

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If a planet were orbiting the sun in an orbit two times as far as its current orbit, the planet will take 4 times longer to go around the sun than now.

What is an Orbit?

An orbit is a path that an object takes around another object in space, such as the path of the Earth around the sun. The planets all move in an orbit around the sun because the sun's gravitational force holds them in their orbits.

The distance between the planets and the sun differs depending on their location in the solar system, as well as the stage of their elliptical orbits. For example, Venus and Mars will be much nearer to Earth than Neptune and Saturn, which will be much farther away. This is due to the fact that the planets move in an elliptical orbit rather than a circular one. This implies that the distance between them and the sun varies throughout their orbit.

Astronomers measure distances in our solar system in astronomical units (AU). One AU is equal to the distance from the Earth to the sun, which is approximately 93 million miles. The sun's closest planet, Mercury, is about 0.4 AU away from it, while the most distant planet, Neptune, is about 30 AU away from it. Other objects in the solar system, such as comets and asteroids, can be located much further away from the sun.

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Suppose the Moon were held in its orbit not by gravitational interaction with the Earth but by a long, mass-less cable attached to the center of the earth. What would be the tension in the cable?

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Tension of approximately 2.7 x 10^20 N, will be observed in the cable.

If the Moon were held in its orbit by a long, mass-less cable attached to the center of the Earth, the tension in the cable would be equal to the force needed to keep the Moon in its circular path around the Earth. This force is the centripetal force, which is given by the equation,

Fc = mv^2/r

where Fc is the centripetal force, m is the mass of the Moon, v is the velocity of the Moon in its orbit, and r is the radius of the Moon's orbit.

The velocity of the Moon in its orbit can be calculated using the equation,

v = 2πr/T

where T is the period of the Moon's orbit.

Using the known values for the mass of the Moon, the radius of its orbit, and the period of its orbit, the tension in the cable can be calculated using the above equations. The result is a tension of approximately 2.7 x 10^20 N, which is an incredibly large force that is not physically possible to achieve with current technology.

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a 2 kilogram mud ball drops from rest at a height of 18 m. if the impact between the ball and the ground lasts o.65 s, what is the magnitude of the aerage force exerted

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The magnitude of the average force exerted on the mud ball during the impact of a 2-kilogram mud ball is dropped from a height of 18 meters is 46N.

First we need to use the equation:

force = mass x acceleration

We know the mass of the mud ball is 2 kilograms, and we can calculate the acceleration by using the equation:

acceleration = change in velocity / time

To find the change in velocity, we need to use the equation for the conservation of energy:

potential energy = kinetic energy

The potential energy of the mud ball at a height of 18 meters can be calculated using the equation:

potential energy = mass x gravity x height

where gravity is approximately 9.8 m/s².

So, the potential energy of the mud ball is:

Potential Energy [tex]= 2 *9.8 *18 = 352.8 joules.[/tex]

When the mud ball hits the ground, all of its potential energy is converted to kinetic energy. The equation for kinetic energy is:

kinetic energy = 0.5*mass*(velocity)²

We can rearrange this equation to solve for velocity:

[tex]velocity = \sqrt{(2*(KE)/ mass)}[/tex]

Using the value we found for the potential energy, we can calculate the velocity of the mud ball just before it hits the ground:

[tex]velocity = \sqrt{(2*352.8 / 2)}= 14.97 m/s[/tex]

Now that we know the velocity of the mud ball just before it hits the ground, we can use the equation for acceleration to find the acceleration during the impact:

[tex]acceleration = change in velocity / time[/tex]

The change in velocity is equal to the velocity just before the impact, since the mud ball comes to a stop during the impact. So:

[tex]acceleration = 14.97 / 0.65 = 23 m/s^2[/tex]

Finally, we can use the equation for force to find the magnitude of the average force exerted on the mud ball during the impact:

[tex]force = mass*acceleration = 2 *23 = 46 N[/tex]

So the magnitude of the average force exerted on the mud ball during the impact is 46 N.

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what is resistance of the load if 10.0 volts generate a current of 700 milliamps? audio signals and systems

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The resistance of the load, given that 10.0 volts generate a current of 700 milliamps, is 14.3 ohms. To calculate this, you need to use Ohm's Law, which states that resistance (R) is equal to the voltage (V) divided by the current (I).

Therefore, R = V / I, or in this case, R = 10.0 volts / 0.700 amps = 14.3 ohms.

The resistance of the load can be calculated using Ohm's law, which states that the resistance is equal to the voltage divided by the current. In this case, the resistance would be 10.0V/0.7A, which equals 14.29Ω

The concept of resistance is important in audio signals and systems. As audio signals are AC, the resistance of a load determines how much of the signal is attenuated as it passes through the load. A higher resistance means that the signal is weakened, while a lower resistance means that the signal is stronger.

Therefore, knowing the resistance of a load is important when setting up audio systems, as it affects the strength of the signal that is sent to the speakers. Furthermore, impedance, which is closely related to resistance, is important in audio signals and systems, as it affects the quality of the signal being sent to the speakers.

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over what locations on earth can a satellite be placed in a geostationary orbit? please give your reasoning, including an illustrative diagram.

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Locations on earth can a satellite be placed in a geostationary orbit over the equator of the earth

The geostationary orbit is a circular orbit located above the earth's equator at a height of around 36,000 km or 22,000 miles. The satellite is always positioned in a fixed point in the sky from the earth. The satellite remains fixed in the sky above a particular location on the earth's surface.In other words, it has an orbital period equal to the rotation of the Earth on its axis. This type of orbit is used for communication, weather forecasting, and remote sensing because it allows the satellite to remain fixed in the same position above the earth.

As a result, they offer a stable platform for communication with the earth.The geostationary orbit has numerous benefits. For instance, it reduces the required power of communication equipment, ensuring that a small antenna can receive or transmit signals to a satellite with less power. It also allows for a full view of the earth's surface, thereby providing comprehensive coverage for communication, broadcasting, and other satellite applications. The diagram below shows a satellite placed in a geostationary orbit. Therefore, to place a satellite in a geostationary orbit, it must be placed over the equator of the earth.

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