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A solid concrete wall has dimensions [L] m x[b] m and is [d] cm thick. The thermal conductivity of the concrete is 1.3 W/m ∙ K, and it separates a basement from the ground outside. The inner surface of the wall is at [p]°C, and the outside surface is at [q]°C. How much heat flows through the wall every [t] minutes?

When the first law of thermodynamics, delta Q = delta U + delta W , is taken through an adiabatic process( delta = change)

A [m] kg copper bar is put into a smelter for melting. The initial temperature of the copper is [a] K. How much heat must the smelter produce to completely melt the copper bar? The specific heat for copper is 386 J/kg∙K, the heat of fusion for copper is 205,000 J/kg, and its melting point is 1357 K.

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.