which is the correct order for the first six planets in our solar system starting from the sun?

Answers

Answer 1

The correct order for the first six planets in our solar system starting from the Sun is :

MercuryVenusEarthMarsJupiterSaturn

This order is based on the distance of each planet from the sun, with Mercury being the closest planet to the sun and Saturn being the sixth planet from the sun.  The ordering of the planets is significant because it reflects the relative positions and distances of the planets from the sun, which affects their characteristics such as their temperature, composition, and orbital periods. The inner planets, including Mercury, Venus, Earth, and Mars, are smaller and denser than the outer planets and have rocky surfaces. The outer planets, including Jupiter, Saturn, Uranus, and Neptune, are larger and less dense than the inner planets and have gaseous surfaces.

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Related Questions

the pressure in a car tire is 198 kpa at 27 c. after a long drive, the pressure is 225 kpa. what is teh temperature of the gas in the tire? assume that the volume in constant

Answers

The temperature of the air in the tire after the long drive is approximately 68 degrees Celsius.

The combined gas law is used to relate pressure, temperature, and volume of a gas. It states that the product of the pressure and volume of a gas is directly proportional to its absolute temperature. Mathematically, it can be expressed as:

(P₁ ÷ T₁) = (P₂ ÷ T₂)

P₂ and T₂ represent the final pressure and temperature, and P₁ and T₁ represent the beginning pressure and temperature. This equation can be rearranged to account for T₂:

T₂ = (P₂ ÷ P₁) x T₁

Plugging in the given values, we get:

T₂ = (225 kPa ÷ 198 kPa) x 300 K

T₂ = 1.136 x 300 K

T₂ = 340.8 K

Converting this to Celsius, we get:

T₂ = 67.8°C ≈ 68°C

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HELP PLEASE Light travels to Earth from space as a/an_________wave.

O Mechanical
OSound
O Electromagnetic
O Longitudinal

Answers

Answer:

electromagnetic wave.

Explanation:

You can see light from the moon, distant stars, and galaxies because light is an electromagnetic wave. Electromagnetic waves are waves that can travel through matter or through empty space.

Answer: C) Electromagnetic wave

Explanation: It can't be D) Longitudinal because there is no such thing as a longitudinal wave that has to do with space. It wouldn't be mechanical cuz a mechanical doesn't have anything to do with light, neither sound.

Thus, the answer is C) Electromagnetic

a laser beam takes 45.5 ms to be reflected back from a totally reflecting sail on a spacecraft. how far away is the sail?

Answers

The sail is approximately 6,832,500 meters away from the laser source.

To determine the distance between the laser source and the totally reflecting sail on a spacecraft, we'll use the time it takes for the laser beam to be reflected back, which is 45.5 ms (milliseconds).

Since the laser beam travels to the sail and back, we must account for the round trip. The speed of light is approximately 3.0 x 10^8 meters per second (m/s).

First, convert 45.5 ms to seconds: 45.5 ms × (1 s / 1000 ms) = 0.0455 s.

Next, calculate the total distance the laser beam travels during this time: distance = speed × time, so distance = (3.0 x 10^8 m/s) × 0.0455 s ≈ 13,665,000 meters.

Finally, divide the total distance by 2 to find the distance between the laser source and the sail: 13,665,000 meters / 2 ≈ 6,832,500 meters.

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Check that there is the same number of atoms corresponding to each element in the reagents and in the products. Why does that occur?

Answers

Balancing chemical equations ensures that the law of conservation of mass is upheld, as atoms cannot be created or destroyed in a reaction, and the same number of atoms of each element must be present on both sides of the equation.

In chemical reactions, it is important to ensure that the same number of atoms of each element are present on both the reactant and product sides of the equation. This principle is known as the law of conservation of mass, which states that the total mass of the reactants must equal the total mass of the products in a chemical reaction.

The balancing of chemical equations is essential for understanding the stoichiometry of a reaction, which refers to the study of the quantitative relationships between reactants and products in a chemical reaction. Balancing the equation involves adjusting the coefficients of the reactants and products so that the same number of atoms of each element is present on both sides of the equation.

The law of conservation of mass occurs because atoms cannot be created or destroyed in a chemical reaction. The atoms in the reactants must be present in the products, albeit in a different arrangement, which is why balancing is essential. Therefore, balancing the equation ensures that the mass of the reactants equals the mass of the products, and the law of conservation of mass is upheld.

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when a high voltage is applied to a low-pressure gas, causing it to glow, it will emit what type of spectrum? a. li

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When a high voltage is applied to a low-pressure gas and it starts to glow, it will emit an emission line spectrum.

This spectrum consists of bright, narrow lines at specific wavelengths, which are characteristic of the element or molecules in the gas. This is due to the electrons in the gas being excited to higher energy levels and then falling back down to lower energy levels, emitting photons of light at specific wavelengths corresponding to the energy differences between the levels. The resulting emission spectrum can be used to identify the elements or molecules present in the gas.

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a 11-kg cart moving to the right with a speed of 15 m/s collides with a concrete wall and rebounds with a speed of 5 m/s. what is the change in momentum of the cart?

Answers

The change in momentum of the cart is -110 kg m/s. This means that the momentum of the cart decreased by 110 kg m/s as a result of the collision with the concrete wall.

The change in momentum of the cart can be calculated using the formula Δp = mΔv, where Δp is the change in momentum, m is the mass of the cart, and Δv is the change in velocity. In this case, the mass of the cart is 11 kg and the initial velocity is 15 m/s to the right, while the final velocity is 5 m/s in the opposite direction.

So, the change in velocity (Δv) is calculated by subtracting the final velocity from the initial velocity: Δv = 5 m/s - 15 m/s = -10 m/s.

Now, we can calculate the change in momentum (Δp) by multiplying the mass and change in velocity: Δp = 11 kg x (-10 m/s) = -110 kg m/s.


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a resistance r and a 3.2 h inductance are in series across a 60-hz ac voltage. the voltage across the resistor is 29 v and the voltage across the inductor is 33 v. assume that all voltages in this problem are rms voltages. (a) what is the resistance r?

Answers

The Resistance r is 56.97 ohms

To solve this problem, we can use Ohm's Law and the equation for the voltage across an inductor in an AC circuit.

First, let's find the current in the circuit. We know that the voltage across the series combination of the resistor and inductor is the sum of the voltage across the resistor (29 V) and the voltage across the inductor (33 V):

V_total = V_R + V_L
V_total = IR + IXL
where I is the current in the circuit, X_L is the inductive reactance (which depends on the frequency and inductance of the inductor), and R is the resistance.

Since the circuit is operating at a frequency of 60 Hz and the inductance is 3.2 H, we can find the inductive reactance using the formula:

X_L = 2πfL
X_L = 2π(60)(3.2)
X_L ≈ 120.96 Ω

Now we can solve the current:

V_total = IR + IXL
62 = I(R + 120.96)
I ≈ 0.509 A

Next, we can use Ohm's Law to solve for the resistance:

V_R = IR
29 = (0.509)R
R ≈ 56.97 Ω

Therefore, the resistance in the circuit is approximately 56.97 ohms.

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a 650 nm laser shines through a diffraction grating. the first bright band is 0.54 m from the center. another laser is only deflected to 0.42 m from the center. what is the wavelength of this light?

Answers

The second laser has a wavelength of around 835.71 nm.

What is the diffraction grating's level formula?

N = 1/ d, where d is the grating spacing, is the number of slits per metre on the grating. At a given order and wavelength, the angle of diffraction rises as d value falls. In other words, as the number of slits per metre grows, so does the angle of diffraction.

d sinθ = mλ

sinθ₁ = (0.54 m) / d

For the second laser, m = 1 again and the distance from the center is 0.42 m. We can solve for sinθ₂:

sinθ₂ = (0.42 m) / d

Since the spacing of the diffraction grating is the same for both lasers, we can set the two equations equal to each other and solve for λ:

d sinθ₁ = d sinθ₂

(0.54 m) / λ = (0.42 m) / λ

Simplifying, we get:

λ = (0.54 m * 650 nm) / 0.42 m

λ = 835.71 nm

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Question:

A laser with a wavelength of 650 nm shines through a diffraction grating. The first bright band is observed at a distance of 0.54 m from the center. Another laser is shone through the same grating and is deflected to a distance of 0.42 m from the center. What is the wavelength of the second laser?

four weightlifters a through d enter a competition. the mass and distance that each lifts are shown in the table. which weightlifter does the least work? responses

Answers

From these calculations, we can see that weightlifter C does 3 x 10^3 J of work, as their work value is the closest to this value. Therefore, weightlifter C does 3 x 10^3 J of work.

Add gravity (9.81) to the weight, then multiply by the distance:

A) [tex]100 * 9.81 * 2.25 = 2207.25 = 2.2 \times 10^3[/tex]

B) [tex]150 * 9.81 * 1.76 = 2589.84 = 2.6 \times 10^3[/tex]

C) [tex]200 * 9.81 * 1.50 = 2943 = 2.9 \times 10^3[/tex] ( Can round to [tex]3.0 \times 10^3[/tex])

D) [tex]275 * 9.81 * 1.25 = 3372.18 = 3.4 \times 10^3[/tex]

Weightlifters are athletes who take part in the weightlifting sport, which entails performing precise movements with a barbell loaded with weights to ascertain the highest weight that can be lifted. The snatch and the clean are the primary competitions in weightlifting, which has been a part of the Olympic Games since 1896.

Weightlifters require strength, power, and explosive energy to perform the lifts correctly and maximize their potential. They often train with heavy weights to build their muscles and improve their technique. Weightlifting competitions are categorized by weight class, with athletes competing against others in their respective weight divisions. Weightlifting is a difficult and rewarding sport that calls for commitment, self-control, and perseverance to excel.

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Complete Question:-

Four weightlifters A through D enter a competition. Their mass and distance that each lifts are shown in the table.

Weighlifter Mass(kg) Distance(m)

A 100.0 2.25

B 150.0 1.76

C 200 1.50

D 275 1.25

Which weightlifter does 3 x 10^3 J of work?

According to the correspondence principle:
(a) new theory must agree with old theory where they overlap.
(b) Newton's mechanics is as valid as Einstein's mechanics.
(c) relativity equations apply to high speeds while Newton's equations apply to low speeds.
(d) special relativity and general relativity are two sides of the same coin.

Answers

Answer:

(a) new theory must agree with old theory where they overlap

Example: at low speeds relativistic theory must agree with the original Newtonian theory

if the human body has an average density of 983 kg/m3 , what fraction of a person is submerged when floating gently in fresh water?

Answers

Roughly half of a person's body is submerged when they are floating gently in fresh water.

When an object is floating in water, it displaces an amount of water equal to its weight. If the weight of the displaced water is greater than the weight of the object, the object will float, and if it is less, the object will sink.

The fraction of a person that is submerged while floating in fresh water depends on the ratio of their weight to the weight of the water displaced by their body.

Assuming that the volume of a person is constant, we can calculate the weight of a person as:

Weight = density x volume x gravity

where:

density = 983 [tex]kg/m^3[/tex] (average density of human body)

volume = the volume of a person (assumed to be constant)

gravity = 9.81 [tex]m/s^2[/tex] (acceleration due to gravity)

Let's assume the weight of a person is 70 kg, then their volume would be:

Volume = Weight / (density x gravity)

Volume = 70 / (983 x 9.81)

Volume = 0.00716 [tex]m^3[/tex]

Now, let's consider the weight of the water displaced by the person's body. The weight of the water displaced is equal to the weight of the person, which is 70 kg.

Therefore, the fraction of the person's body that is submerged in water is:

Fraction submerged = Weight of water displaced / Total weight

Fraction submerged = 70 / (70 + weight of water in the submerged part of the body)

Since the person is floating gently in water, we can assume that only a small part of their body is submerged, and we can neglect the weight of water in the submerged part of the body.

Thus, we can approximate the fraction submerged as:

Fraction submerged ≈ Weight of water displaced / Total weight

Fraction submerged ≈ 70 / (70 + 70)

Fraction submerged ≈ 0.5 or 50%

Therefore, roughly half of a person's body is submerged when they are floating gently in fresh water.

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a 1 meter long solenoid with 200 turns carries 2a of current . calculate the magnetic field on axis.

Answers

The magnetic field on the axis of the solenoid is 5.03 × 10⁻⁴ T.

The magnetic field on the axis of a solenoid can be calculated using the formula:

B = μ₀ * n * I

Where B denotes the intensity of the magnetic field, 0 denotes the permeability of empty space, n denotes the number of turns per unit length, and I is the current flowing through the solenoid.

In this case, the solenoid is 1 meter long and has 200 turns, so n = 200 turns / 1 meter = 200 turns/meter. The solenoid is delivering 2A of current.

The value of μ₀ is a constant, equal to 4π × 10⁻⁷ T·m/A

When we enter these values into the formula, we get:

B = μ₀ * n * I

= 4π × 10⁻⁷ T·m/A * 200 turns/m * 2A

= 5.03 × 10⁻⁴ T

Therefore, the magnetic field on the axis of the solenoid is 5.03 × 10⁻⁴ T.

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magnetic field on the axis of the solenoid is approximately 0.005 T

Solution -  Hi! To calculate the magnetic field on the axis of a solenoid, you can use the formula:

Magnetic field (B) = μ₀ * n * I . (applicable for ideal long solenoid)

where μ₀ is the permeability of free space (approximately 4π x 10^-7 Tm/A), n is the number of turns per unit length, and I is the current.

In your case, the solenoid is 1 meter long with 200 turns and carries a 2 A current. To find n, divide the number of turns by the length:

n = 200 turns / 1 m = 200 turns/m

Now, plug the values into the formula:

B = (4π x 10^-7 Tm/A) * (200 turns/m) * (2 A)

B ≈ 0.005 T

The magnetic field on the axis of the solenoid is approximately 0.005 T (Tesla).

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PLEASE ANSWER ASAP
1. How many atoms are present in 8.500 mole of chlorine atoms?
2. Determine the mass (g) of 15.50 mole of oxygen.
3. Determine the number of moles of helium in 1.953 x 108 g of helium.
4. Calculate the number of atoms in 147.82 g of sulfur.
5. Determine the molar mass of Co.
6. Determine the formula mass of Ca3(PO4)2.
IT WOULD BE HELPFUL

Answers

The number of atoms in 147.82 g of sulphur is 2.772 x 10²⁴. In 1.953 x 10⁸ g of helium, there are 4.883 × 10⁷ moles of helium. 15.50 moles of oxygen weigh 248 g. Calcium phosphate's formula mass would be 310.18 g/mol.

How many atoms make up 1 gramme?

The quantity of atoms or molecules per gramme of atomic weight is known as Avogadro's number, which is 6.022 × 10²³/mole. One mole of hydrogen comprises 6.022 × 10²³ hydrogen atoms for one gramme of hydrogen with an atomic weight of one gramme.

The Avogadro's number states that 1 mole of any substance contains 6.022 x 10²³ particles. Therefore, 8.500 moles of chlorine atoms would contain:

8.500 moles * 6.022 x 10²³ atoms/mole = 5.1167 x 10²⁴ atoms of chlorine.

The molar mass of oxygen is 16.00 g/mol. Therefore, 15.50 moles of oxygen would have a mass of:

15.50 moles * 16.00 g/mol = 248 g

So the mass of 15.50 mole of oxygen is 248 g.

The molar mass of helium is 4.00 g/mol. Therefore, 1.953 x 10⁸ g of helium would contain:

1.953 x 10⁸ g / 4.00 g/mol = 4.883 x 10⁷ moles of helium.

The molar mass of sulfur is 32.06 g/mol. Therefore, 147.82 g of sulfur would contain:

147.82 g / 32.06 g/mol = 4.6055 moles of sulfur. Therefore, the formula mass of Calcium phosphate would be:

(340.08 g/mol) + (230.97 g/mol) + (8*16.00 g/mol) = 310.18 g/mol.

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A geologic feature of divergent plate continental crust is called a zone of

Answers

A geologic feature of divergent plate continental crust is called a zone of rifting.

What is zone of rifting?

A zone of rifting is a geologic feature that occurs where tectonic plates are moving away from each other, causing the Earth's crust to stretch and thin. This process can result in the formation of a long, narrow depression called a rift valley.

A geologic feature of divergent plate continental crust is called a zone of rifting. This is a region where tectonic plates are moving away from each other, causing the Earth's crust to stretch and thin. As the crust stretches, faults and fractures can develop, and magma from the Earth's mantle can rise to the surface, creating volcanic activity. Over time, this process can lead to the formation of a new ocean basin if the rifting continues and the plates continue to move apart. Some examples of zones of rifting include the East African Rift Valley and the Mid-Atlantic Ridge.

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a student is designing an investigation of the distribution of charges in conductors. she will use two conducting spheres mounted on insulating stands in the investigation. the conducting spheres are shown. the student wants to separate the charges of the spheres as shown. what should the student do in her investigation to produce these results? responses she should place a positively charged rod near the left sphere. she should place a positively charged rod near the left sphere. she should place two positively charged rods near each sphere. she should place two positively charged rods near each sphere. she should place two negatively charged rods near each sphere. she should place two negatively charged rods near each sphere. she should place a negatively charged rod near the left sphere.

Answers

The correct response would be: "She should place a positively charged rod near the left sphere."

What is Charges?

In physics, charges refer to the fundamental property of matter that gives rise to electric interactions. Charges can be positive or negative, and they are responsible for the phenomenon of electric force, which is the force that acts between charged objects.

By bringing a positively charged rod near the left sphere, it will induce a redistribution of charges in the conductive sphere. The positive charges in the left sphere will repel the positive charges in the rod, causing the electrons in the left sphere to move away from the rod and distribute themselves more evenly across the surface of the sphere, leaving the side facing the rod with a net positive charge.

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what is the wavelength of a radio photon from an am radio station that broadcasts at 1270 kilohertz? express your answer to three significant figures and include the appropriate units.

Answers

The wavelength of a radio photon from an AM radio station broadcasting at 1270 kilohertz is 236 meters.

To find the wavelength of a radio photon from an AM radio station broadcasting at 1270 kilohertz, we can use the formula:
wavelength (λ) = speed of light (c) / frequency (f)

1. First, we need to convert the frequency from kilohertz to hertz:
1270 kilohertz = 1270 * 10³ hertz = 1,270,000 hertz

2. Next, we will use the speed of light, which is approximately 3.00 * 10⁸ meters per second (m/s).

3. Now, we can plug in the values into the formula:
wavelength (λ) = (3.00 * 10⁸ m/s) / (1,270,000 Hz)

4. Calculate the wavelength:
λ ≈ 236.22 meters

5. Finally, express the answer to three significant figures and include the appropriate units:
λ ≈ 236 meters

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Assume a firm closes down in the short run and produces no output. Under these conditions:A. TVC is positive, but TFC and TC are zero.B. TFC is positive, but TVC and TC are zero.C. TFC and TC are positive, but TVC is zero.D. TFC, TVC, and TC will all be positive.

Answers

The correct answer is C.

In this case, Total Fixed Costs (TFC) remain positive as they are the expenses that do not change with the level of output, such as rent, salaries, and depreciation. Total Variable Costs (TVC) are zero since there is no production, and variable costs depend on the level of output. Total Costs (TC) remain positive as they are the sum of TFC and TVC, and since TFC is positive, TC will also be positive.

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a workman carries some lumber up a staircase. the workman moves 9.6 m vertically and 22 m horizontally. if the lumber weighs 45 n, how much work was done by the workman?

Answers

The total work done by the workman was 432 joules

The workman lifted the lumber a vertical distance of 9.6 m, which means he did work against gravity. The amount of work done is equal to the force (weight of the lumber) multiplied by the distance it was lifted:

Work = force x distance

Work = 45 N x 9.6 m

Work = 432 joules

In addition to lifting the lumber, the workman also moved it horizontally a distance of 22 m. However, since the lumber was not lifted or lowered during this movement, no work was done against gravity.

Therefore, this distance does not affect the amount of work done by the workman.

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two objects collide under conditions where total momentum is conserved. is the momentum conserved for each object?

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Yes, the momentum is conserved for each object in a collision where total momentum is conserved.

This means that the momentum of each individual object before the collision will equal the momentum of that same object after the collision, but in the opposite direction. This conservation of momentum is a fundamental law of physics, stating that in a closed system, the total momentum remains constant unless acted upon by an external force. Yes, each object in the impact maintains its momentum. This is due to the law of conservation of momentum, which stipulates that the overall momentum of a closed system—in this case, the collision of the two objects—remains constant before and after the collision. Every object must conserve its momentum because it is a component of the closed system and is part of the overall momentum. As a result, in the collision, each object's momentum is preserved.

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Yes, the momentum is conserved for each object in a collision where total momentum is conserved.

This means that the momentum of each individual object before the collision will equal the momentum of that same object after the collision, but in the opposite direction. This conservation of momentum is a fundamental law of physics, stating that in a closed system, the total momentum remains constant unless acted upon by an external force. Yes, each object in the impact maintains its momentum

. This is due to the law of conservation of momentum, which stipulates that the overall momentum of a closed system—in this case, the collision of the two objects—remains constant before and after the collision. Every object must conserve its momentum because it is a component of the closed system and is part of the overall momentum. As a result, in the collision, each object's momentum is preserved.

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what planet can come closest to the earth in its orbit and look brightest in our skies? a. none of the above b. venus c. mercury d. jupiter e. mars

Answers

Answer: B Venus

Explanation:

Ben and Jerry are standing on an ice rink discussing who has the best skates. Ben says he will go faster due to his superior skates and gives Jerry a shove to prove his point. Ben has a mass of 150 kg and a velocity of 11 m/s after he pushed Jerry. What was Jerry's mass if he has a velocity of 15 m/s>

Answers

Therefore, Jerry's mass is approximately 118.4 kg.

What does mass mean in plain terms?

It is the most fundamental characteristic of matter and one of the fundamental quantities in physics. Mass is a term used to describe how much matter is there in a body. (kg). The mass of a body is constant over time.

The following is the equation for momentum conservation:

m1v1 + m2v2 = m1v1' + m2v2'

We are aware of Ben's 150 kg mass and 11 m/s post-push velocity. Additionally, we are aware of Jerry's post-push velocity, which is 15 m/s. To find Jerry's mass, we can rewrite the equation as follows:

m2 = (m1v1 + m1v1' - m2v2') / v2

Substituting in the known values:

m2 = (150 kg * 0 m/s + 150 kg * 11 m/s - m2 * 15 m/s) / 15 m/s

Simplifying and solving for m2:

m2 = (150 kg * 11 m/s) / (15 m/s + 1) ≈ 118.4 kg

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how many joules of energy does a 100 watt light bulb use per hour? express your answer in joules to two significant figures.

Answers

To determine how many joules of energy a 100-watt light bulb uses per hour, you can follow these steps:

Step 1: Identify the power of the light bulb, which is given as 100 watts.

Step 2: Convert the power to joules per second, since 1 watt is equal to 1 joule per second. Therefore, the light bulb has a power of 100 joules per second.

Step 3: Calculate the energy used per hour. There are 3,600 seconds in an hour, so multiply the power (in joules per second) by the number of seconds in an hour:

Energy = Power x Time
Energy = 100 joules/second x 3,600 seconds
Energy = 360,000 joules

So, a 100-watt light bulb uses 360,000 joules of energy per hour.

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a cassegrain telescope like that shown in (figure 1) has a primary mirror with 1.0-m focal length, and its convex secondary mirror is located 0.85 m from the primary. what should be the focal length of the secondary in order to put the final image 0.12 m behind the front surface of the primary mirror?

Answers

The focal length of the secondary mirror should be 0.187 m.

In a Cassegrain telescope, the final image is formed at the point where the parallel rays of light converge after reflecting off the secondary mirror and the primary mirror. Using the mirror equation 1/f = 1/p + 1/q, where f is the focal length, p is the distance of the object from the mirror, and q is the distance of the image from the mirror, we can calculate the distance of the image from the primary mirror.

Given: f_primary = 1.0 m, p = 1.85 m (0.85 m distance from primary to secondary + 1.0 m focal length of primary), and q = 0.12 m (distance of final image from the front surface of the primary mirror).

Solving for f_secondary: 1/1.0 = 1/1.85 + 1/f_secondary + 1/0.12

f_secondary = 0.187 m.

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1. which angular velocity was non-zero and what was the sign? explain how this makes sense given the right-hand rule for the angular velocity.

Answers

Clockwise angular velocity was  non-zero and had a positive sign. So, the correct answer is D.

The right-hand rule for angular velocity asserts that if the right hand's thumb is pointing in the direction of the axis of rotation, then the direction of the angular velocity vector is given by the direction in which the right hand's fingers curl.

This makes sense in this situation. As a result, the angular velocity vector will point in the same direction as the rotation's axis, and it will be positive when the angular velocity is positive.

In physics, engineering, and other sciences, the right-hand rule for angular velocity is a helpful tool for visualising the direction of the angular velocity vector.

This rule allows us to quickly ascertain the direction and sign of the angular velocity in any given situation.

Complete Question:

Which angular velocity was non-zero and what was the sign? Explain how this makes sense given the right-hand rule for the angular velocity.

A.  Counterclockwise, Positive

B.  Clockwise, Negative

C. Counterclockwise, Negative

D. Clockwise, Positive

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if at a concert, a wind blows directly from the orchestra toward you, the frequency of the sound you hear will be:A) decreased.
B) increased.
C) neither decreased nor increased.

Answers

If at a concert, a wind blows directly from the orchestra toward you, the frequency of the sound you hear will be neither decreased nor increased. Option C is correct.

The frequency of the sound you hear at a concert will not be affected by the direction of the wind blowing from the orchestra toward you. The frequency of sound waves is determined by the source of the sound and the speed of sound in air, and is not affected by the wind blowing in a particular direction.

However, the intensity or volume of the sound may be affected by the wind, especially if it is a strong wind. In this case, the sound waves may be partially blocked or scattered by the wind, leading to a reduction in the volume of the sound that reaches you.

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A car with a mass of 1000 kg is traveling east at 4 m/s. Another car with a mass of 500 kg is traveling west at a speed of 3 m/s. The two cars collide. After the collision, the 1000 kg car has a velocity of 1 m/s east. What is the velocity of the 500 kg car after the collision?

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Answer: the velocity of the 500 kg car after the collision is 3 m/s to the east.

Explanation:

Initial momentum = (mass of car 1 x velocity of car 1) + (mass of car 2 x velocity of car 2)

Initial momentum = (1000 kg x 4 m/s) + (500 kg x -3 m/s)   (Note that we use a negative velocity for car 2 because it is traveling in the opposite direction)

Initial momentum = 4000 kg m/s - 1500 kg m/s = 2500 kg m/s

After the collision, the total mass and total momentum of the system remain the same.

Final momentum = (mass of car 1 x velocity of car 1) + (mass of car 2 x velocity of car 2)

Final momentum = (1000 kg x 1 m/s) + (500 kg x v)  (where v is the velocity of the 500 kg car after the collision)

Final momentum = 1000 kg m/s + 500v

Since the total momentum is conserved, we can set the initial momentum equal to the final momentum:

Initial momentum = Final momentum

2500 kg m/s = 1000 kg m/s + 500v

Solving for v, we get:

v = (2500 kg m/s - 1000 kg m/s) / 500 kg

v = 3 m/s

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If The Wavelength Of A Set Of Waves Is 20 Feet Long, How Deep Is The Wave Base? A. 30 Feet Below The Surface B. 20 Feet Bellow The Surface C. 10 Feet Bellow The SurfaceD. 40 Feet Bellow The Surface

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The depth of the wave base would be 10 feet below the surface (option C), which is one-half of the wavelength of 20 feet.

The depth of the wave base, which is the depth at which wave movement ceases to have an influence on sediment transport and erosion, is determined by the wavelength of the waves. In general, the depth of the wave base is equal to half the wavelength of the waves.

Therefore, if the wavelength of a set of waves is 20 feet long, the depth of the wave base would be 10 feet below the surface (option C). This means that any sediment or features below this depth would be relatively undisturbed by the action of the waves.

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how much work, in joules, is done in pushing a crate weight 842 n up an inclined plane that is 10 m long and makes an angle of 9 degrteesd with the horizontal?

Answers

The work done in pushing the crate up the inclined plane is 1428.7 joules.

To calculate the work done in pushing the crate up the inclined plane, we need to use the formula:

Work = force x distance x cos(theta)

Where:

force = the weight of the crate = 842 N
distance = the length of the inclined plane = 10 m
theta = the angle between the inclined plane and the horizontal = 9 degrees

First, we need to find the component of the weight that acts parallel to the inclined plane. This is given by:

force_parallel = force x sin(theta) = 842 N x sin(9 degrees) = 146.9 N

Next, we can find the force required to push the crate up the inclined plane. This is equal to the force parallel to the plane, since we are assuming no friction:

force_push = force_parallel = 146.9 N

Finally, we can calculate the work done by multiplying the force by the distance and the cosine of the angle:

Work = force_push x distance x cos(theta) = 146.9 N x 10 m x cos(9 degrees) = 1428.7 J

Therefore, the work done in pushing the crate up the inclined plane is approximately 1428.7 joules.

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Can someone pleaseeeee answer fast

Answers

Answer:

v = velocity

f = frequency

A = Wavelength

T = period

Explanation:

hope it helps

a longitudinal wave is passing through the newly discovered element belmontium at 380 m/s when it encounters another longitudinal wave coming from the other direction. how fast is the other wave moving? express your answer with the appropriate mks units.

Answers

The other longitudinal wave moving through belmontium should also have a speed of 380 m/s.

In a longitudinal wave, particles of the medium oscillate parallel to the direction of the wave's propagation. When two longitudinal waves meet, they undergo a process called interference, which can be constructive or destructive depending on their phase relationship.

Belmontium, the newly discovered element, is the medium through which the first longitudinal wave is passing at a speed of 380 m/s. When this wave encounters another longitudinal wave coming from the opposite direction, they interact with each other.

In this scenario, the speed of the second longitudinal wave can be determined by the principle of superposition. According to this principle, the displacement of particles in the medium at any point in time is the algebraic sum of the displacements due to individual waves.

Since the medium is the same for both waves (belmontium), their speeds should also be the same. This is because the speed of a wave in a given medium is determined by the properties of that medium, such as its density and elasticity. In the case of longitudinal waves, the speed depends on the medium's bulk modulus and its mass density.

Therefore, the other longitudinal wave moving through belmontium should also have a speed of 380 m/s. The speed is expressed using the appropriate MKS (meter-kilogram-second) units as 380 meters per second (m/s).

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