A sample of helium has a volume of 2.00 liters, a temperature of 20.0
and a pressure of 2.50 atmospheres. What is the energy needed to heat the sample of helium gas from 20.0
to 95.0 
at constant volume?
A. 88.0 J
B. 137 J
C. 175 J
D. 207 J
E. 476 J
D. 207 J
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Write the conduction equation for radial heat flow of heat through a tube that has inside diameter of Di and outside diameter of D0.
What will be an ideal response?
A charged particle moving along the +x-axis enters a uniform magnetic field pointing along the +z-axis. Because of an electric field along the +y-axis, the charge particle does not change velocity. What is the sign of this particle?
A) positive B) negative C) The particle could be either positive or negative. D) None of the above choices is correct.
The current in a coil with a self-inductance of 1.5 mH increases from 0 to 2.0 A in a tenth of a second. What is the induced emf in the coil?
a. 15 mV c. 0.10 V b. 0.30 V d. 30 mV
Scientific equations in a conceptual course are mainly
A) recipes for plugging in numerical data. B) guides to thinking about the relationships between concepts. C) for mathematical problem solving. D) unfortunately a confusing way of explaining ideas.