If you see a body in space that is not moving in a straight line at constant speed, what can you say about it?
A. It is not subject to any outside forces.
B. It must be an artificial satellite.
C. There must be a net force acting on it.
D. None of these choices is correct.
Answer: C
Physics & Space Science
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The Lewis symbol 
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In an LC circuit containing a 40-mH ideal inductor and a 1.2-mF capacitor, the maximum charge on the capacitor is 45 mC during the oscillations. What is the maximum current through the inductor during the oscillations?
A) 3.7 A B) 42 A C) 6.5 A D) 10 A E) 2.5 A
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Of EM waves having these wavelengths, which would be visible?
a. 100 nm b. 500 nm c. 1000 nm d. 1 nm e. none of the above
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