Kindly answers all parts to the question pls

[-/4 Points] DETAILS OSCOLPHYS2016ACC 7.8.P.047. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER (a) What is the efficiency of an out-of-condition professor who does 2.30 x 105 J of useful work while metabolizing 500 kcal of food energy? (Enter your answer as a percentage. Enter a number.) (b) How many food calories (in kcal) would a well-conditioned athlete metabolize in doing the same work with an efficiency of 25%? (Enter a number.) kcal Submit