A70-mm thick square plate and a right circular cylinder with a radius of 90 mm and height of 40 mm each have the same volume. if each is to be cast using a cylindrical riser, will each part require the same size riser to ensure proper feeding of the molten metal? explain.

An engine runs on the ideal diesel cycle. the cycle has a compression ratio of 20 and a cutoff ratio of 2. the highest temperature in the cycle is 1200 k. if the heat into the system is 300 kj/kg of working fluid and using variable specific heats determine the work produced per mass of working fluid