You push a 2.3 kg block against a horizontal spring, compressing the spring by 17 cm. then you release the block, and the spring sends it sliding across a tabletop. it stops 88 cm from where you released it. the spring constant is 200 n/m. what is the block–table coefficient of kinetic friction?

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?

The respiratory system removes oxygen and water from the body. select the best answer from the choices provided t f

What is the final velocity of the initial velocity of 25 and -50?