The speed of sound through liquid glycerol is about 1900 m/s. Which of the following could be the speed of sound through solid steel? A.

150 m/s

B.

730 m/s

C.

1900 m/s

D.
5950 m/s

An experiment was performed on a 2-kg block. forces of 5, 10 and 15 newtons respectively were applied to the block for 5 seconds. describe the difference in acceleration between the three trials. a) the final accelerations will all be the same. b) the final acceleration will triple between the first and third trial. c) the final acceleration will be cut by 1/3 from the first to third trial. d) the final acceleration will increase nine time between the first and third trial.