Blue light has a longer wavelength than red light
Indicate whether the statement is true or false
F
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The most striking valley in the solar system is:
A) the Grand Canyon in Arizona. B) Gwenivere on Venus. C) the Discovery Scarp of Mercury. D) Valles Marineris on Mars. E) Valhalla on Callisto.
A person throws a ball horizontally from the top of a building that is 24.0 m above the ground level. The ball lands 100 m down range from the base of the building. What was the initial velocity of the ball? Neglect air and use g = 9.81 m/s2
A) 202 m/s B) 9.80 m/s C) 19.6 m/s D) 45.2 m/s E) 94.4°
The general formula RNH2 is that of
a. an ester. b. an amine. c. an amide. d. none of these
A friend argues that if mass were really conserved he would never need to refill his gas tank. What explanation do you offer your friend?
A) The atoms (mass) of gasoline are converted into energy by the engine according to E=mImage. B) The Law of Conservation of Mass does not apply to reactions involving combustion or explosion of matter. C) The atoms (mass) of gasoline are converted into exhaust fumes. D) The oil companies make gasoline in a way that it gets used up so that we are always required to replenish it.