When did the ball fly farther—when it hit the moving bat or the bat that did not move?

What happens to the light rays when they hit the specimen?

To do work, this truck uses energy stored in chemical fuel and an electrical battery. how much total energy does this truck put out?

Total solidification times of three casting geometries are to be compared: a sphere, a cylinder, in which the length-to-diameter ration - 1.0, and a cube. volume = 1000 cm^3 for all three shhapes, and the same casting alloy is used. a) determine the solidification times of each geometry b) based on the results of part (a), which geometric element would make the best riser? c) if the mold constant = 3.5 min/cm^2 in chvorinov's rule, compute the total solidification time for each casting.