The orbital radius of Earth's Moon is 3.9Å~108 m. Use Newton’s version of
Kepler’s third law to calculate the
period of Earth’s Moon if the orbital
radius were doubled.
79 days

A2 kg ball travellng to the right with a speed of 4 m/s collidees with a 5 kg ball traveling to the left with a speed of 3 m/s. take right to be the positive direction. what is the total momentum of the two balls before they collide? what is the total momentum of the two balls after they collide?

Ineed asap! list 3 examples in which friction us or makes things easier in our daily life. explain the effect of friction for each. *make sure you explain the effect of friction for each example! *

Holes drilled several kilometers into earth’s crust provide direct evidence about earth’s interior in the form of