A tree moves at 30 km/s relative to the Sun. A squirrel jumps from a branch on this tree to an acorn on the ground. But taking one second to drop, the acorn
should then be 30 kilometers away. We can understand why this reasoning is
wrong by looking to Newton's
Third law
First law
Second law
Law of gravitation

Aball bearing at 220.0 °c is dropped into a cup containing 250.0 g of water at 20.0 °c. the water and ball bearing come to a temperature of 30.0 °c. what is the heat capacity of the ball bearing in j/°c? (hint: how are the algebraic signs of q related for the ball bearing and the water? )

What is the weight of a feather (mass = 0.0001 kg) that floats through earth's and the moon's atmospheres?

How does a circuit breaker protect a refrigerator? a. when the current is too high, a metal strip in the fuse melts and opens the circuit. b. when the resistance is too high , a re-settable which opens a circuit c. when the current is too high , a re-settable switch opens the circuit d. when the resistance is too high a metal strip in the fuse melts and opens the circuit