Part A Find f(t) for the function F(s) = 185 s(s+3) Express your answer in terms of u (t), o (t), and t. Enter the phase angle in radians. Express your answer using three significant figures. He Be IF (0 EX :? f (t ) = ((5)- (5e-37)- (15te-3) - (45fe-37))u(t) You have already submitted this answer. Enter a new answer. No credit lost. Try again. Submit Previous Answers Request Answer Part B 10(s+2)? Find f(t) for the function F(s) = = ( s?+ 2s + 2 ) ? Express your answer in terms of u (t), o (t), and t. Enter the phase angle in radians. Express your answer using three significant figures. He Be f ( t ) = (10esin (t)u(t) + 10tesin (t))u(t) Submit Previous Answers Request Answer X Incorrect; Try Again; 29 attempts remaining Part C Find f(t) for the function F (s) = = 25s" +395s+1494 $2+15s+54 Express your answer in terms of u (t), o (t), and t. Enter the phase angle in radians. Express your answer using three significant figures. He Be f (t) = Submit Request Answer Part D Find f(t) for the function F(s) = as' +20s' -49s-108 s-+7s+10 . Assume that k(t) = 8'(t) Express your answer in terms of u (t), o (t), k (t) and t. Enter the phase angle in radians. Express your answer using three significant figures. He Be f ( t) = Submit Request