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VladimirAG [237]

3 years ago

11

What is one of Kepler's laws of planetary motion?

1 answer:

iragen [17]3 years ago

4 0

Answer:

a. Planets move on elliptical orbits with the Sun at one focus.

Explanation:

Johannes Kepler was an astronomer who discovered that planets had elliptical orbits in the early 1600s (between 1609 and 1619).

The three (3) laws published by Kepler include;

I. The first law of planetary motion by Kepler states that, all the planets move in elliptical orbits around the Sun at a focus.

II. According to Kepler's second law of planetary motion, the speed of a planet is greatest when it is closest to the Sun.

Thus, the nearer (closer) a planet is to the Sun, the stronger would be the gravitational pull of the sun on the planet and consequently, the faster is the speed of the planet in terms motion.

III. The square of any planetary body's orbital period (P) is directly proportional to the cube of its orbit's semi-major axis.

Hence, one of Kepler's laws of planetary motion states that planets move on elliptical orbits with the Sun at one focus. This is his first law of planetary motion.

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It could possibly melt things

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3 years ago

Raw sewage is raised vertically by 5.49m in the amountof

uranmaximum [27]

Answer:

P = 1235.7646 W

Explanation:

Given data:

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3 years ago

What is an advantage of using oil instead of wind to generate electricity?

Anastaziya [24]

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3 years ago

A 100 kg box as showsn above is being pulled along the x axis by a student. the box slides across a rough surface, and its posit

Anit [1.1K]

Answer:

a) 2 m/s

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Explanation:

The function for distance is $x = 0.5t ^3 + 2t$

We know that:

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Acceleration = $a= \frac{d}{dt}v$

To find speed at time t = 0, we derivate the distance function:

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Velocity at t = 0 will be 2 m/s.

To find the function for Kinetic Energy of the box at any time, t.

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$F = m \times a\\F= m \times 3t\\F = 3tm$

6 0

3 years ago