What are the density layers of the ocean from bottom to top

Acharge of 8.4x10^-4 c moves at an angle of 35 degrees to a magnetic field that has a field strength of 6.7x10^-3 t. if the magnetic force is 3.5 x10 ^-2 n, how fast is the charge moving?

According to newtons universal law of gravitation, which would change the parh of the ball so it traces out widest curved path possible?

The voltage applied across a given parallel-plate capacitor is doubled. how is the energy stored in the capacitor affected?