An astronaut drops a feather from 1.2m above the surface of the moon. If the acceleration of gravity on the moon is 1.6 m/s, how long does it take the feather to hit the moon's surface

A 20.0-kg space probe fires an ion engine for 10.0 s during which time it experiences a force given by F (t) = (6.00 N/s2) t2 i. If it was originally moving in the x-direction at 40.0 m/s, what is its velocity at t = 5.00 s?

Lionel explores electromagnetic induction using the procedure shown. 1. Move the magnet quickly into the right end of a solenoid. 2. Hold the magnet in the solenoid for 3 s. 3. Move the solenoid slowly to the left away from the magnet.

The heat Fusion is the amount of heat required to__ A - evaporate 1 g of liquid into gas B-make a substance subliminate C - melt 1g of solid into liquid D-Make material combust

What is the mass of an object if a force of 34 N produces an acceleration of 4 m/s/s?

You are explaining why astronauts feel weightless while orbiting in the space shuttle. Your friends respond that they thought gravity was just a lot weaker up there.

A pendulum swings with amplitude. 02 m and period of 2 s what is its maximum speed

What bone cells respond to stress?

What are two ways that convention currents in the ocean distribute the suns energy?

A 535 kg roller coaster car began at rest at the top of a 93.0 m hill. Now it is at the top of the first loop-de-loop. This roller coaster's track is nearly frictionless, so resistance can be ignored. Using g = 9.

A bulldozer does 45,000 joules of work to push a boulder a distance of 30 meters. How much force is applied to push the?