The height has a distance of 5
meters if it takes
2.5 seconds to
hit the ground
what is Gravity?

Atomic nuclei of almost all elements consist of

Electromagnetic induction. a coil of wire contains n turns and has an electrical resistance r. the radius of each turn is a. initially, inside the coil there exists a uniform magnetic field of magnitude b0 parallel to the axis of the coil. the magnetic field is then reduced slowly. the current induced in the coil is i. how long does it take for the magnitude of the uniform field to drop to zero?

What are the north and south poles of a solenoid change with?