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Flauer [41]
3 years ago
12

When you compare the prices of two different pairs of shoes, money is a _____.

Physics
2 answers:
shepuryov [24]3 years ago
6 0

Answer:

The correct answer is option C, unit of account

Explanation:

Here the two commodities are two different pair of shoes which are compared on the basis of their price. Thus price of the shoes will be a factor of distinction between the two set of shoes. In general, whatever factor of distinction is used for comparing two different things is basically the unit of account. Like wise there can be other unit of account for the distinguishing same set of shoes –  

a) Colour of the shoes

b) Raw material used for shoes

c) Lace design. Etc

Vladimir [108]3 years ago
3 0

unit of account is the answer

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Jupiter and Saturn each have the same three basic cloud layers, but the spacing of the layers differs on the two planets. Why is
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Answer:

b. Jupiter’s greater gravity has compressed the layers, so they are closer together there.

Explanation:

The value for Jupiter mass is 1.8981×10²⁷kg, while the mass of Saturn is 5.6832×10²⁶kg, so the different layers of clouds in Jupiter will be submitted to a greater gravitational pull because it has a bigger mass, as is established in the law of universal gravitation:

F = G\frac{m1m2}{r^{2}}   (1)

Where m1 and m2 are the masses of two objects, G is the gravitational constant and r is the distance between the two objects.

As it can be seen in equation 1, the gravitational force is directly proportional to the product of the masses of the objects, so if the mass increase the gravitational force will do it too.  

For the case of Saturn, it has a lower mass so its layers of clouds will suffer a weaker gravitational pull. That leads to the three clouds being more spacing that the ones of Jupiter.    

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3 years ago
The six statements below represent Newton's three laws of motion and Kepler's three laws of planetary motion. Match each stateme
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Answer:

1. Force = mass x acceleration - Newton

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3. For any force, there is an equal and opposite reaction force - Newton .

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5. The orbit of each planet about the Sun is an ellipse with the Sun at one focus  - Kepler.

6. More distant planets orbit the Sun at slower average speeds, obeying the precise mathematical relationship p2-a3 - Kepler.

Explanation:

The three laws of planetary motion formulated by Johannes Kepler or Kepler's laws of planetary motion:

  1. The first law states that the planets move around the Sun in an elliptical orbit with the Sun at one of the foci.
  2. The second law states that the line segment joining a planet to the Sun sweeps out equal areas in equal time.
  3. The third law states that the square of the orbital period (p) of a planet is directly proportional to the cube of the mean distance (a) from the Sun (or semi-major axis of its orbit) i.e., p² is proportional to a³.

The three laws of motion formulated by Sir Isaac Newton or Newton's laws of motion:

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  2. The second law states that the total force (F) applied on an object is directly related to the acceleration (a) of that object produced by the applied force and the mass (m) of the object, i.e., F = ma (assuming the mass m is constant).
  3. The third law, also known as the law of action and reaction states that when an object exerts a force on another object, then the latter exerts a force equal in magnitude and opposite in direction on the former object i.e., for every action, there is an equal and opposite reaction. The example includes the recoiling of a gun when it fires a bullet forward.
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