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Answer:

gravitational force

Explanation:

an object with mass attractive another object with mass

ANSWER:

GRAVITATIONAL FORCE

EXPLANATION :

Gravitational force -an attractive force that exists between all objects with mass; an object with mass attracts another object with mass; the magnitude of the force is directly proportional to the masses of the two objects and inversely proportional to the square of the distance between the two objects.

Answer:

pressure - A

Friction-E

Force-B

Weight-C

Fluid-D

Explanation: I just remember my vocab words and i had those

Answer:

0.255m

Explanation:

The total mechanical energy of the ball is given 25 J. The potential energy of the ball is 8 J. Then, the height of the ball above the ground is 0.25 m.

Kinetic energy of an object is the energy generated by virtue of its motion whereas potential energy is generated by virtue of its position at a height from the ground.

The sum of kinetic and potential energy of the object is called its mechanical energy.

given Ke of the ball = 17 J

mechanical energy = 25 J

then potential energy = 25 J - 17 J = 8 J.

We have the relation between potential energy, mass and height h as :

p = mgh .

given the mass m = 3.2 kg

g = 9.8 m/s²

then, h = p / (mg)

h = 8 J / (3.2 kg× 9.8 m/s² )

  = 0.25 m.

Therefore, the height of the ball above the ground is 0.25 m.

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Answer:

Gravitational attraction of the sun.

Explanation:

Gravity is an attractive force. Any two masses will exert an attractive force on the other according to Newton's law of universal gravitation. The more massive the objects, the stronger the force. The sun, as you can probably guess, is pretty massive - 330,000 times more than Earth, and 1,048 time more than Jupiter, our solar system's largest planet. Just like man-made satellites around Earth, the planets in our solar system are constant process of "falling" around the sun, locked in their orbits by its mass, but slowing dramatically in their orbital velocity the further away they are.

Answer:

i) The angle of refraction is approximately 19.47°

ii) The angle of the incident light should be approximately 61.85°

Explanation:

Snell's law for the relationship between the angle of incident  and the angle of refraction of light is given mathematically as follows;

n₁·sin(θ₁) = n₂·sin(θ₂)

i) The characteristics of the glass are;

The refractive index of the glass, n₂ = 1.50

The angle of incident of the light ray in air, θ₁ = 30°

The refractive index of air, n₁ = 1

Let 'θ₂' represent the angle of the light refracted by the glass, by Snell's law we have;

1 × sin(30°) = 1.5 × sin(θ₂)

∴ sin(θ₂) = 1 × sin(30°)/1.5 = 1 × 0.5/1.5 = 1/3

θ₂ = arcsin(1/3) ≈ 19.47°

∴  The angle of refraction, θ₂ ≈ 19.47°

ii) When the angle at which the light incident from air emerges in the glass is 36°, we have;

The angle of refraction of the light through the glass, θ₂ = 36°

The refractive index of the glass remains, n₂ = 1.50

The refractive index of air, n₁ = 1

Let 'θ₁' represent the angle of the incident light, we get;

1 × sin(θ₁) = 1.5 × sin(36°)

∴ sin(θ₁) = 1.5 × sin(36°) = 1.5 × √(10 - 2·√5)/4

θ₁ = arcsin( 1.5 × √(10 - 2·√5)/4 ) ≈ 61.85°

The angle of the incident light should be, θ₁ ≈ 61.85°.

Answer:

work=f(costheta)

Explanation:

work is done when a force acts on a body and displaces it on the direction of force

Answer:Jane drives at an average speed of 45 mph on a journey of 135 miles.

Explanation:

Answer:

a) C. 7.5 V

b) A. 2.5 V

Explanation:

First, we find the total resistance of the circuit. A voltage divider circuit is a series circuit. Therefore, its total resistance will be the sum of individual resistances:

[tex]R = R_{1}+R_{2}\\R = 100\ \Omega + 300\ \Omega\\R = 400\ \Omega\\[/tex]

a)

Now, we will apply the voltage divider rule on this circuit to find the voltage across the 300 Ω Resistor (R₂):

[tex]V_{2} = R_{2}\frac{V}{R}\\\\V_{2} = (300\ \Omega)\frac{10\ V}{400\ \Omega}\\\\[/tex]

V₂ = 7.5 V

Therefore, the correct option is:

C. 7.5 V

b)

Now, the voltage across the 100 Ω Resistor (R₁) will be:

[tex]V = V_{1}+V_{2}\\V_{1} = V-V_{2}\\V_{1} = 10\ V - 7.5\ V\\V_{1}=2.5\ V[/tex]

Therefore,the correct option is:

A. 2.5 V

I hope this helps.......

Answer:

What is the magnitude of the player 's displacement? A baseball "diamond" is a square, each side of length 27.4 m, with home plate and if each length of the base is 27.4 m, and the baseball player ran to third base,Then, the baseball player is 27.4 feet away from home plate (where he started)below the horizontal.

Explanation:

the sum of vectors we were able to find the displacement of the corridor for each case

a)  d = 38.75 m

b)  d = 27.4 m

c)  d = 0 m

given parameters

to find

   A) a double

   B) A triple

   c) A home run

The displacement is a vector for which, in addition to the module, it has a direction, so it must be taken into account for the calculations. In the exercise, set a reference system with the x-axis in the direction from Home to first base and the y-axis from home to third base.

To find the displacement we use the Pythagoras theorem

          d = [tex]\sqrt{d_x^2 + d_y^2}[/tex]

if the displacements are on a single axis the addition reduces to arithmetic addition

Let's analyze the different cases:

a) hit a double

runner goes from home plate to second base

          d = [tex]\sqrt{r^2+r^2}[/tex]Ra r² + r²

          d = r √2

          d = 27.4 √2

          d = 38.75 m

b) hit a triple

Runner goes from home plate to third base

the distance from home to first base x = r

the distance from second to third base x = -r

the negative sign indicates that it is going in the opposite direction

         d = [tex]\sqrt{(r-r)^2 +r^2}[/tex]

         d = r

c) Hit a home run

in this case, the runner returns to the starting point, because of a vector the displacement is zero

         d = 0

In conclusion, applying the sum of vectors we were able to find the displacement of the corridor for each case

a)  d = 38.75 m

b)  d = 27.4 m

c)  d = 0

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Answer:

temperiture or annual wind speed.

Explanation:

Answer:

True

Explanation:

Answer:

erosion

muddy water and soil being carried away by a fast-moving river is erosion

Answer:

Explanation:

You know, I never really thought about this very much. I've always just thought of it as M * V. But when you look at a dictionary definition, it says it is the motion of a body.

That means that speed can be a momentum. Speed is independent of direction. So the colloquial definition does not take into account a change in direction as being very relevant.

The answer then is direction. When physics uses v, it is also counting direction.

Answer:

87

Explanation:

Answer:

The answer is "13% and 83%"

Explanation:

The highest power is generated for:

[tex]\to \frac{dP}{dV_a}=0= I_s(e^{\frac{V_m}{V_t}} -1)-I_{Ph} +\frac{V_m}{V_t} I_s e^{\frac{V_m}{V_t}}[/tex]

 Where voltage, [tex]V_m[/tex], was its calculated maximum power wattage.  This same following transcend national stable coins the power output:

[tex]\to V_m=V_t \ In \frac{1+\frac{I_{ph}}{I_s}}{1+\frac{V_{m}}{V_t}}[/tex]

The accompanying consecutive values of [tex]V_m[/tex] are done utilizing iteration and an initial value of 0.5 V:

[tex]\to V_m = 0.5,\ 0.542,\ 0.540 \ V[/tex]

Efficacy is equivalent to:

[tex]\eta = |\frac{V_{m} I_{m}}{p_{in}}| =\frac{0.54 \times 0.024}{0.1}=1.3\%[/tex]

Currently, [tex]I_m[/tex] was calculated with the formula of voltage [tex]V_m[/tex] (4.6.1) as well as the sun is presumed to produce  [tex]100 \frac{mW}{cm^2}[/tex] of power.

The fulfillment factor is equal to:

fill factor[tex]= \frac{V_{m} I_{m}}{V_{oc}I_{sc}}= \frac{0.54 \times 0.024}{0.62 \times 0.025}=83\%[/tex]

where open circuit tension of equations (4.6.1) and I = 0. is calculated. The current is equal to the total current of the photo.

Answer:

pretty sure its d

Explanation:

Answer:

2

Explanation:

and two light bulbs. Through how many paths will the current be able to travel in her circuit?

A) 1

B) 2

C) 3

D) 4

There are mainly two paths by which the current can travel in the circuit. Bulbs in an electrical circuit can be connected in series or in parallel arrangement. Thus, the correct option is B.

The current is the flow of charge (electron) in a circuit. When the two light bulbs are connected in series with two batteries, then each of the bulb shares the voltage drop equally with the other bulb. So, each bulb has half of the total voltage across the circuit. Each bulb has the voltage of one battery across it in the circuit. Each light bulb glows similar to the other if were connected to a single battery.

A series circuit can be constructed by connecting the light bulbs in such a manner that charge can flow in only a single pathway. More light bulbs can be added to the same line without any branching point. With the increase in the number of light bulbs added, the brightness of each light bulb gradually decreases as the current divides further.

Therefore, the correct option is B.

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Answer:

i) The reactants are sodium sulphate and barium chloride

ii) The products are barium sulphate and sodium chloride.

Explanation:

In chemistry, a chemical reaction occurs when one or more chemical substances usually referred to as REACTANTS undergoes some processes and is converted to one or more different substances known as PRODUCTS.

From the question:

Na2SO4 + BaCl2 ⟶ 2NaCl + BaSO4

​The above balanced equation represents the chemical reaction between sodium sulphate and barium chloride. Both are the reactants because they where the substances that passed through a process ( this involves the breaking of bond that held them together).

The PRODUCTS are barium sulphate and sodium chloride because they are the substances that presented at the end of the chemical reaction.

Answer:

3: High and low tides

Explanation:

Tides can be defined as the rise and fall of water level in water bodies such as lakes and oceans due to the gravitational force of attraction exerted by the moon on earth. The side closest to the moon creates a bulge of water known as high tide. Low tides are generally experienced when a sea level is not within the bulge.

Additionally, they are caused by the cycle of rising and falling ocean water that are repeated approximately every 12.5 hours.

In conclusion, the gravitational pull of the Moon is responsible for visible changes on the surface of Earth. Thus, the pull of the Moon's gravity causes high and low tides on planet Earth's surface.

Answer:

High and low tides  

Explanation:

Tides can be defined as the rise and fall of water level in water bodies such as lakes and oceans due to the gravitational force of attraction exerted by the moon on earth. The side closest to the moon creates a bulge of water known as high tide. Low tides are generally experienced when a sea level is not within the bulge.

Additionally, they are caused by the cycle of rising and falling ocean water that are repeated approximately every 12.5 hours.

In conclusion, the gravitational pull of the Moon is responsible for visible changes on the surface of Earth. Thus, the pull of the Moon's gravity causes high and low tides on planet Earth's surface.

Answer:

The first disadvantage is that, if one component in a series circuit fails, then all the components in the circuit fail because the circuit has been broken. The second disadvantage is that the more components there are in a series circuit, the greater the circuit's resistance*.

Explanation:

Hope this helped Mark BRAINLEST!!

Answer: It could be many things. For example liquid, gaseous or solid objects.

Explanation: For conduction to take place between two objects, they must be touching each other. For conduction to occur between atoms within the same object, they must also be touching (or nearly touching).

Answer:

False

Explanation:

It would be described as having a long period

A vibrating object with a high frequency would be

described as having a low period is a false statement.

The individual air molecules do not "travel" with the wave. They just vibrate back and forth. When the vibrations are fast (high frequency), you hear a high note. When vibrations are slower, you hear a lower note.

"Frequency is the number of occurrences of a repeating event per unit of time. "It is also occasionally referred to as temporal frequency to emphasise the contrast to spatial frequency, and ordinary frequency to emphasise the contrast to angular frequency.

Other units: cycles per second (cps); revolutions

SI unit: hertz (Hz)

In SI base units: s−1

Derivations from other quantities: f = 1 / T

"A period T is the time required for one complete cycle of vibration to pass a given point. "As the frequency of a wave increases, the period of the wave decreases. Frequency and Period are in reciprocal relationships and can be expressed mathematically as: Period equals the Total time divided by the Number of cycles.

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Explanation:

A molecule is the smallest particle in a chemical element or compound that has the chemical properties of that element or compound. Molecules are made up of atoms that are held together by chemical bonds. These bonds form as a result of the sharing or exchange of electrons among atoms.

Answer:

atom

Explanation: