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Work is one way of transferring energy to an object.

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 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?

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

C.(b) (2 pts) The engine now applies a forward horizontal force while a friction force acts in the opposite direction over a certain distance.  Describe any changes to the mechanical energy of the car that occur because of these two forces.  {You can either type your answer below or handwrite it. If you decide to type it, write “typed” in the corresponding space on your handwritten work paper.}

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.

If two objects have the same mass and undergo the same temperature decrease, the object with the greater specific heat will release more thermal energy to the surroundings.

Which is the correct formula for deciduous teeth in the canine?