The satellite has a mass of 200 kg and a radius of gyration about z axis of k z = 0.1 m , excluding the two solar panels a and b. each solar panel has a mass of 15 kg and can be approximated as a thin plate. if the satellite is originally spinning about the z axis at a constant rate ω z = 0.5 r a d / s w h e n θ = 90 ° , determine the rate of spin if both panels are raised and reach the upward position, θ = 0 ° , at the same instant.

Air at a pressure of 1atm and a temperature of 40 c is in parallel flow over the top surface of a flat plate that is heated to a uniform temperature of 120 c. the plate has a length of 0.40m (in the flow direction) and a width of 0.15m. the reynolds number based on the plate length is 50, 000. what is the rate of heat transfer from the plate to the air? if the free stream velocity of the air is doubled and the pressure is increased to 10 atm what is the rate of heat transfer?