Name: 4. [30 pt] a. [10 pt] A weightlifter curls a 100 kg bar, raising it each TABLE 11.1 Energy in fuels time a distance of 0.61 m. How many times must he Energy in 1 g of fuel repeat this exercise to burn off all the energy in one Fuel (in k.J) energy bar that contains 22 g of carbohydrates? You can Hydrogen 121 assume 25% efficiency and use g = 9.8 m/s'. [Watch Gasoline 44 out: need to burn off ALL energy!] [Answer in whole Fat (in food) 38 integer] Coal 27 Carbohydrates 17 (in food) Wood chips 15 12 Name: **$******** NEW PROBLEM *******$*$*$*$*$*$*$**$1 ********* b. [10 pt] A constant force F is exerted on an object which then moves up a smooth inclined plane with a constant speed of 6m/s. The mass of the object is 5.0 kg and the angle of inclination of the plane is 30.0. What is the power delivered by the force? [ Answer in 3 significant figures]