3 years ago

ANYONE HELP ME PLEASE!

Physics

1 answer:

DedPeter [7]3 years ago

7 0

Answer:

Kinetic energy is the energy in moving objects or mass. Examples include mechanical energy , electrical energy etc.

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myrzilka [38]

Answer:

Mình cũng không biết làm bạn ơi =)))

Explanation:

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3 years ago

A geosynchronous Earth satellite is one that has an orbital period of precisely 1 day. Such orbits are useful for communication

koban [17]

Answer:

r = 4.24x10⁴ km.

Explanation:

To find the radius of such an orbit we need to use Kepler's third law:

$\frac{T_{1}^{2}}{T_{2}^{2}} = \frac{r_{1}^{3}}{r_{2}^{3}}$

<em>where T₁: is the orbital period of the geosynchronous Earth satellite = 1 d, T₂: is the orbital period of the moon = 0.07481 y, r₁: is the radius of such an orbit and r₂: is the orbital radius of the moon = 3.84x10⁵ km. </em>

From equation (1), r₁ is:

$r_{1} = r_{2} \sqrt[3] {(\frac{T_{1}}{T_{2}})^{2}}$

$r_{1} = 3.84\cdot 10^{5} km \sqrt[3] {(\frac{1 d}{0.07481 y \cdot \frac{365 d}{1 y}})^{2}}$

$r_{1} = 4.24 \cdot 10^{4} km$

Therefore, the radius of such an orbit is 4.24x10⁴ km.

I hope it helps you!

3 0

3 years ago

A hand-held video game is powered by batteries. After playing the game for several minutes, a student notices that the game feel

scoundrel [369]

I would say your answer is B- Some of the chemical energy from the batteries is converted into heat energy.

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3 years ago

Q:Why does a sheet of sandpaper become warm when you rub it against a wooden board?

otez555 [7]

Answer: D and friction

Explanation:

PLz brainliest

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3 years ago

Read 2 more answers

A meter stick is supported by a pivot at its center of mass. Assume that the meter stick is uniform and that the center of mass

iragen [17]

Answer:

64.5 cm

Explanation:

30 * 80 + x * 110 = 50* 190 => x = 64.5

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3 years ago