Which of the following describes how cooling systems transfer thermal energy?
a. Thermal energy naturally flows from cooler
areas to warmer areas.
b. Thermal energy naturally flows from warmer
areas to cooler areas.
c. Work is done to transfer thermal energy from
warmer areas to cooler areas.
d. Work is done to transfer thermal energy from
cooler areas to warmer areas.

Acar moves at 12m/s and coasts up a hill with a uniform acceleration of -1.6m/s2. how far has it traveled after 6.0s?

Acylinder with a movable piston contains 11.7 moles of a monatomic ideal gas at a pressure of 1.32×10^5 pa. the gas is initially at a temperature of 300 k. an electric heater adds 43200 j of energy into the gas while the piston moves in such a way that the pressure remains constant. cp=20.79 j k^−1 mol^−1 for a monatomic ideal gas, and that the number of gas molecules is equal to avogadro's number (6.022×10^23) times the number of moles of the gas. (a) what is the temperature of the gas after the energy is added? (b) what is the change in volume of the gas? (c) how much work is done by the gas during this process?

What is a possible result of higher air temperature caused by global warming