An industrial cylindrical barrel is partially full of oil.  It’s radius is 2 m, and it’s length is 20m.  It’s mass is 80kg.  What is it’s density?  

Consider a small black rubber ball, and a completely transparent glass marble, of the same size.  Which is true when they are subject to sunlight?

A car is doing donuts, traveling in a perfect circle at constant speed.  Which is true of the net force acting on the car?

When the cylinders in your engine compress the fuel/air mixture, the work done ON the gas is:

Which of the following is/are type(s) of cytopathic effects (CPEs)?  

Electric forces act on:

The units of specific heat capacity for a  material might be: 

Viruses attach to their hosts via ______.

Consider a water wave travelling along the surface of Percy Priest Lake.  Which is true of the motion of a water molecule along the wave’s trajectory?

What is the approximate magnitude of the acceleration of a free-falling mass near the Earth’s surface, in SI units?