An apparatus similar to the one used in this experiment is used to run the same experiment.
Data:
Diameter of drum = 8.1 cm
Mass of drum: 401 g
Specific heat capacity of drum: 0.281 cal/(goC)
Change in temperature of the drum: 7.2 oC
Mass of the hanging mass: 5.00 kg
How many turns of the crank are needed to raise the temperature of the drum by the amount specified above.