You overindulged in a delicious dessert, so you plan to work off the extra calories at the gym. To accomplish this, you decide to do series of arm curls holding a 5.00 kg weight in one hand. The distance from your elbow to the weight is 35.0 cm , and in each arm curl you start with arm straight down and raise the weight in your hand by pivoting at your elbow until your elbow is completely bent and the weight in your hand is vertical. Assume that the weight of your arm is small enough compared with the weight you are lifting that you can ignore it. As is typical, your muscles are 20.0% efficient in converting food energy into mechanical energy, with the rest going into heat.

If your dessert contained 350 food calories, how many arm curls must you do to work off these calories?