Sound waves and some earthquake waves are what

How much work is done lifting a 9.10 kg box straight up onto a shelf that is 1.80 m high?

At time t=0, a particle is located at the point (3,6,9). it travels in a straight line to the point (5,2,7), has speed 8 at (3,6,9) and constant acceleration 2i−4j−2k. find an equation for the position vector of the particle.

Which diagram correctly demonstrates the various forces acting on a ball moving horizontally with some speed?