eli5: how is the earth losing kinetic energy from all the satelites and the moon revolving around us?

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watched a video. professor stated that the viking stole energy from saturn (through orbit and assisted energy transfer) in order to complete its trajectory.

In: Physics

5 Answers

Anonymous 0 Comments

Imagine you tie a bucket of water to your waist with two ropes, directly in front of you.

One rope is tied on your front, closest to the bucket. The other in your back, furthest from the bucket.

Now you start spinning/roaring on the spot while someone also picks up the bucket and runs around you in a circle. They don’t go _quite_ as fast as you, so the ropes start pulling on you, creating torque, slowing your rotation.

The moon does the same thing to the earth with gravity, pulling on the ocean closest to it and furthest from it, which is what we call tides.

Also, smaller satellites aren’t big enough to generate enough gravity to really effect this. The earth _almost_ just shrugs them off.

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