A rock is thrown horizontally from the top of a cliff at 12 m/s. The cliff is 45 m high. Approximately how far downrange does the ck travel? А
30 m
B
36 m
С
45 m
D
57 m

If the speed of a particle triples ,by what factor does its kinetic energy increase?

The magnetic field inside a superconducting solenoid is 4.50 t. the solenoid has an inner diameter of 6.20 cm and a length of 26.0 cm. determine (a) the magnetic energy density in the field and (b) the energy stored in the magnetic field within the solenoid.

Atomic nuclei of almost all elements consist of