Air (1 atm, 5°c) with free stream velocity of 2 m/s flowing in parallel to a stationary thin 1 m x 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 orn the flat plate is 0.1 n, determine the rate of heat transfer from the plate.

Red light strikes a metal surface and electrons are ejected. if violet light is now used with a 10% greater intensity, what will happen to the ejection rate (number of ejected electrons per second) and the maximum energy of the electrons? a) greater ejection rate; same maximum energyb) same ejection rate; greater maximum energyc) greater ejection rate; greater maximum energyd) same ejection rate; same maximum energye) none of the above answers are correct

5g of ammonium nitrate was dissolved in 60g of water in an insulated container. the temperature at the start of the reaction was 23.0°c and at the end it was 19.0°c. calculate the energy absorbed by the reaction.

Ways that industry and agriculture use physical properties to separate substances