PHYSICS HELP PLEASE The label on a candy bar says 490 Calories.?

2016-11-10T12:21:56Z

Assuming a typical efficiency for energy use by the body, if a 75 kg person were to use the energy in this candy bar to climb stairs, how high could she go?

Chante2016-11-10T12:29:08Z

So if you were to get on a treadmill for about an hour or so on a slight tilt, and power walk until it says 500 calories burned, then eat that piece of candy, you would have lost 10 calories total. Just an example.