While driving down the highway a lovebug spatters onto your windshield. Which undergoes the greater impulse?
A) the lovebug
B) your car
C) both the same
Answer: C
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Ninety-five percent of light incident on a mirror is reflected. How much light is reflected when three of these mirrors are arranged so light reflects from one after the other?
A) 81% B) 85% C) 86% D) 90% E) 95%
When the energy state of an atom changes by ?E, the frequency of the photon emitted or absorbed is calculated by dividing ?E by ______________
Fill in the blank(s) with correct word
Type II supernova spectra are poor in hydrogen because stars that explode this way use up all their hydrogen before they leave the main sequence
Indicate whether the statement is true or false
A container of ideal gas at STP undergoes an isothermal expansion and its entropy changes by 3.7 J/K. How much work does it do?
A) 1.0 × 103 J B) -1.0 × 103 J C) 1.4 × 103 J D) -1.4 × 103 J E) 0.0 J