Roger Maris swung a bat with mass 1.00 kg at a speed of 30.43 m/s. How much Kinetic

Energy did the bat have?

A body oscillates with simple harmonic motion according to the following equation. x = (2.5 m) cos[ (6π rad/s) t + π/4 rad] (a) At t = 7.0 s, find the displacement. 1.77 Correct: Your answer is correct. m (b) At t = 7.0 s, find the velocity. - 33.

What assumption can be made about the densities of two different spheres that have an identical volume but very different masses?

You and a friend are jumping on a trampoline. Why does Earth, which is rapidly orbiting around the sun, not move under your feet when you jump? A.

A mysterious, bright, starlike object in the galaxy core? A. neutron star B. photosphere C. chromosphere

1. Find the charge if the number of electrons is 4 x 10-18

Light acts like a. a wave. b. a particle. c. neither a wave nor a particle. d. both a wave and a particle.

A uniform rope of length L and negligible stiffness hangs from a solid fixture in the ceiling. The free lower end of the rope is struck sharply at time t=0.

A 62 pound box is on an incline. Determine the minimum force P that would result in the box starting to slide up the incline. (include units with answer)

During a collision with another car, the occupants of a minivan initially travelling at 4.0 m/s come to a complete stop in 0.5 s. What was the acceleration of the occupants of the minivan? a) 8.0 m/s2 b) - 8.0 m/s2 c) 2.0 m/s2 d) - 2.0 m/s2

A system dissipates 12 J of heat into the surroundings; meanwhile, 28 J of work is done on the system.