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What is the Coefficient of Performance of a refrigerator that works between [x]0 Cand [y]0 C ?

What is the entropy change of [m] g of water when it changes from  liquid to steam at its usual boiling point ?LV = 2.26 MJ/kg.

If a string fixed at both ends resonates in its fundamental mode with a frequency of 150 Hz, at which of the following frequencies will it  not resonate? 

Calculate the net change in entropy when 3 kg of hot water at 900C is mixed with 1 kg of cold water at 100C.  The specific heat of water is 4186 J/kg/K. ( Show your work in the space provided here)

A block of mass  m sits at rest on a rough inclined ramp that makes an angle  θ with the horizontal. What must be true about normal force  F on the block due to the ramp?

A coin of mass m rests on a turntable a distance r from the axis of rotation. The turntable rotates with a frequency of f. What is the minimum coefficient of static friction between the turntable and the coin if the coin is not to slip?

This study tool with pull 30 random questions per each attempt. You can utilize this tool to prepare for the final exam. Please do not copy/paste, screen record, print, or otherwise manipulate this resource. This practice exam should only be used for exam preparation inside of Blackboard. You can take the exam as many times as you wish. You will receive a new question set each time you take the exam. This is an ungraded activity.

A car of mass 1000 kg takes a curve which is banked at an angle of 10 degrees. What is the maximum safe speed of the car if the radius of the curve is [r] m? ( Assume that there is no friction)

A 20-ton truck collides with a 1500-lb car and causes a lot of damage to the car. Since a lot of damage is done on the car

This is a Honorlock Practice Test