114.0 g of water is heated using 67.0 W of power, with perfect efficiency. How long will it take to raise the temperature of the water from 15° C to 25° C?

A 10.0-kg piece of aluminum (which has a specific heat of 900 J/kg⋅°C) is warmed so that its temperature increases by 6.0 C°. How much heat was transferred into it?

Which requires more heat: bringing a pan of liquid water from room temperature (20°C) to the boiling point at 100°C, or converting all of the liquid water to steam at a constant 100°C?

Metal lids on glass jars can often be loosened by running them under hot water. Why is this?

If the torques on an object balance, then it follows that this object

The irregular object shown in the figure below is dropped from rest on the moon, where there is no air. Its center of mass is as shown in the figure. What will it do after it is dropped?

The zeroth law of thermodynamics pertains to what relational condition that may exist between two systems?

A Ferris wheel starts from rest and builds up to a final angular speed of 1.9 rad/s while rotating through an angular displacement of 4.9 rad. What is its average angular acceleration?  

A disk starts from rest and has a constant angular acceleration. If it takes time T to make its first revolution, in time 2T (starting from rest) the disk will make

A 10 kg stone and a 100 kg stone are released from rest at the same height above the ground. There is no appreciable air drag. Which of the following statements is not true?