Please help!
A magnetic force of 3.2x10-12 N in the -z direction is acting on an electron
(q=-1.6x10-1°C) moving 1.0x10?m/s in the +y direction. What is the magnitude and
direction of the magnetic field?

An object of dimensions 50 cm x 40 cm x 0.20 cm has a mass 60g. find its density in g/cm3 and kg/ m3

Give an example of a collision in real life. use the law of conservation of energy to describe the transfer of momentum. be sure and discuss the momentum before and after the collision occurs. you will need at least 3 sentences to thoroughly answer this question.

The discovery of the electron as a subatomic particle was a result of