G Ridge regression: Write some code which perform L2 regularization. That is, solve OLS with a constraint that the L2 norm of the betas is less than some threshold value. min β Xn i=1 e 2 i subject to Xr i=1 β 2 i ≤ T

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