Calculate the magnitude of the resultant force F⃗ r=F⃗ 1+F⃗ 2+F⃗ 3 acting on the block. Express the magnitude of the resultant force in newtons to two significant figures.

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