Air (1 atm, 5°c) with free stream velocity of 4 m/s flowing in parallel to a stationary thin 1 m × 1 m flat plate over the top and bottom surfaces. the flat plate has a uniform surface temperature of 35°c. if the friction force asserted on the flat plate is 0.1 n, determine the rate of heat transfer from the plate.\

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?