Calculate the work (in joules) required to pump all of the water out of a full tank. Assume a = 16 m, b = 8 m, water exits through the spout c = 3 m, and the density of water is 1,000 kg/m3 . (Assume that acceleration due to gravity is g = 9.8 m/s2.)

Amass weighing 24 pounds, attached to the end of a spring, stretches it 4 inches. initially, the mass is released from rest from a point 8 inches below the equilibrium position. find the equation of motion. (use g = 32 ft/s2 for the acceleration due to gravity.)

Does heating a metal wire increase or decrease its electrical resistance? why?

An electromagnetic wave with frequency 65.0 hz travels in aninsulating magnetic material that has dielectric constant 3.64 andrelative permeability 5.18 at this frequency. the electric fieldhas amplitude 7.20 \times 10^{ - 3} {\rm v}/{\rm m}. a. what is the speed of propagation of the wave? b.what is the wavelength of the wave? c.what is the amplitude of the magnetic field? d.what is the intensity of the wave?