Asmall loop of area a = 5.5 mm2 is inside a long solenoid that has n = 919 turns/cm and carries a sinusoidally varying current i of amplitude 3.08 a and angular frequency 226 rad/s. the central axis of the loop and solenoid coincide. what is the amplitude of the emf induced in the loop?

A14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earths velocity. earth mass is 6.0 * 10^24 kg. show your work assuming the rock earth system is closed.

Amajor difference radio waves, visible light, and gamma rays is the of the photons, which results in different photon frequencies and wavelengths

Estimate of the number of stars in our galaxy