During a cold day, you can warm your hands by rubbing them
Chapter , Problem 49(choose chapter or problem)
During a cold day, you can warm your hands by rubbing them together. Assume the coefficient of kinetic friction between your hands is 0.500, the normal force between your hands is 35.0 N, and that you rub them together at an average relative speed of (a) What is the rate at which mechanical energy is dissipated? (b) Assume further that the mass of each of your hands is 350 g, the specific heat of your hands is and that all the dissipated mechanical energy goes into increasing the temperature of your hands. How long must you rub your hands together to produce a increase in their temperature?
Unfortunately, we don't have that question answered yet. But you can get it answered in just 5 hours by Logging in or Becoming a subscriber.
Becoming a subscriber
Or look for another answer