(7%) Problem 15: A hiker of mass 59 kg is going to climb to the top of Mount Tam, which has an elevation of 2,574 ft. lance with Expert TA's Terms of Service, copying this information to any solutions sharing website is strictly forbidden, 4 50% Part (a) If the hiker starts climbing at an elevation of 350 ft, what will their change in gravitational potential energy be, in joules, once they reach the top? Assume the zero of gravitational potential energy is at sea level. Grade Summary AV, = Deductions 0% Potential 100% sin() cos tan( 8 9 HOME Submissions Attempts remaining: 10 cotan( asin( acos() E (0% per attempt) atan() acotan( sinh() 3 detailed view cosh() tanh() cotanh() + O END .Degrees O Radians VC BACKSPACE CLEAR Submit Hint Feedback I give up! Hints: 0% deduction per hint. Hints remaining: 1 Feedback: 0% deduction per feedback. 50% Part (b) Repeat the above calculation for the change in gravitational potential energy, but assume the gravitational potential is zero at the top of th mountain