A particle moves along the x axis. Its position as function of time is given by x=6.8t+8.5t^2, where t is in seconds and x is in meters. What is the acceleration as a function of time?

A squirrel has a mass of. 5kg what is it's weight?

A guitar string vibrates with a frequency of 256hz. What is the period of vibration

Find the moment of inertia about each of the following axes for a rod that is 0.360 {cm} in diameter and 1.70 {m} long, with a mass of 5.00*10-2 {kg}.1. About an axis perpendicular to the rod and passing through its center. (in I=kg*m^2) 2.

The average height of an apple tree is 4.00 meters. How long would it take an apple falling from that height to reach the ground? Given: g = - 9.8 meters/second2

What happens if you move a magnet near a coil of wire?

Explain how the energy of a rubber ball is transformed as it rolls down a ramp.

Which type of friction acts on an object that is not moving? static friction fluid friction sliding friction rolling friction

A substance maintaining a uniform appearance throughout

How much work will it take to lift a 2-kg pair of hiking boots 2 meters off the ground and onto a shelf in your closet? O A. 2.45 J OB. 4J C. 39.2 J D. 20 J

Two cars collide on the parkway. The drivers are following too closely and the driver in the front slows because of traffic to a velocity of 20.0m/s and the driver behind is still moving at 30.