Acoil of conducting wire carries a current i. in a time interval of δt = 0.520 s, the current goes from i1 = 3.20 a to i2 = 1.90 a. the average emf induced in the coil is e m f = 14.0 mv. assuming the current does not change direction, calculate the coil's inductance (in mh).

Agas is contained in a vertical, frictionless piston–cylinder device. the piston has a mass of 3.2 kg and a cross-sectional area of 35 cm2. a compressed spring above the piston exerts a force of 190 n on the piston. if the atmospheric pressure is 95 kpa, determine the pressure inside the cylinder.

The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e

Another word for electromagnetic energy is a. heat b. force c. matter d. radiation