An alpha particle (the nucleus of a helium atom), carrying a charge of 3.2 x 10^-19 C
moves at 5.1 x 10^7 m/s at a right angle to a
magnetic field.
If the particle experiences a force of
5.5 X 10^-15N due to the magnetic field, what
is the magnitude of the magnetic field?
Answer in units of T.

Acoil formed by wrapping 80 turns of wire in the shape of a square is positioned in a magnetic field so that the normal to the plane of the coil makes an angle of 28.0° with the direction of the field. when the magnetic field is increased uniformly from 200 µt to 600 µt in 0.400 as, an emf of magnitude 80.0 mv is induced in the coil. what is the total length of the wire?

At an oceanside nuclear power plant, seawater is used as part of the cooling system. this raises the temperature of the water that is discharged back into the ocean. the amount that the water temperature is raised has a uniform distribution over the interval from 10° to 25° c. what is the standard deviation of the temperature increase?

The necleus of an atom is made up of what subatomic particles?