A30-gram bullet is fired and a 50-gram bullet is dropped simultaneously from the same height. which will hit the ground first?

A1000-kg weather rocket is launched straight up. the rocket motor provides a constant acceleration for 16-s, then the motor stops. the rocket altitude 20-s after launch is 510-m. you can ignore any effects of air resistance. a. what was the rocket’s acceleration during the first 16-s? b. what is the rocket’s speed as it passes through a cloud 5100-m above the ground?

Determine the maximum r-value of the polar equation r =3+3 cos 0

In a system, when potential energy decreases, then entropy also decreases. true false