Author: Anonymous

A pendulum has 30 J of gravitational potential energy when it is released from rest. At a later time, its gravitational potential energy is 12 J. If you ignore friction, the pendulum must have _____ of kinetic energy at that instant.

A 72-kg bungee jumper plummets 54 m straight downward from a bridge. How much gravitational potential energy does she lose?

Work is one way of transferring energy to an object.

A hamburger’s energy content of 419,000 cal is equivalent to 100,000 J.

While a gas is being compressed, 50 J of work is done on the gas while its thermal (internal) energy decreases by 30 J. We conclude that

The Celsius temperature scale is defined such that molecular motion is at a minimum at zero degrees (0 °C).

D. (7 pts) The heat engine in a chain saw has an efficiency of [ef] and performs [W] kJ of work. How many milliliters (mL) of gasoline does the chain saw burn if gasoline has an energy content of 34.6 kJ/mL? {Enter the value (not the units) in the box below. Your score on this question will be based on your handwritten work.}

Which part of the ruminant stomach is responsible for cud formation?

Which of the following properties of a roller coaster car is conserved as it moves along a track that exerts a friction force on the car?

You have 50 minutes to complete the exam.  The only allowed tool is a calculator. Section I.  (35 pts).  On a piece of paper show all of your work, including the symbolic formula you are using, when solving the following problems.  Include the appropriate units in your answer.  All of the necessary formulas are displayed above. In this Canvas quiz you will only need to enter the numerical value of your answer.  Your score on these free-response questions is based solely on your handwritten work.