How do you find the change in potential energy

Which statement best describes the adiabatic process? A. the temperature remains constant B. the temperature increases at a constant rate C. heat flows at a constant rate into the system D. heat flows at a constant rate out of the system E.

If x=a+bt+ct 2 where x is in metres and t is in seconds. What is the dimensional unit of c?

A 4 g bullet is fired horizontally with a speed of 300m/s into 0.8 kg block of wood at rest on a table. If the coefficient of friction between block and table is 0.3, how far will the block slide approximately?

A piano emits frequencies that range from a low of about 28 hz to a high of about 4200 hz. find the maximum wavelength in air attained by this instrument when the speed of sound in air is 335 m/s. answer in units of m.

An isolated conducting sphere has a 10 cm radius. One wire carries a current of 1.000 002 0 A into it. Another wire carries a current of 1.000 000 0 A out of it. How long would it take for the sphere to increase in potential by 1000 V?

A refrigerator is a system. The energy input into the refrigerator system (in the form of electricity) is the same as the amount of energy output from the system. Which of the following best describes the energy output of the system?

A 1,120 kg car is travelling with a speed of 40 m/s. Find its energy.

3. Calculate the amount of current through a 45-watt light bulb that is connected to a 120-volt circuit in your home.

Are oranges called oranges because oranges are orange, or is orange called orange because oranges are orange?

An object at rest has no net force acting on it. a. True b. False