Which of the following volcanoes is in the United States?
a. Paracutin
b. Surtsey
c. Mount Pelée
d. Mount Saint Helens
d
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A rubbed balloon will stick to a wooden wall, which demonstrates charge
a. transfer. b. potential. c. conservation. d. polarization.
The typical density and temperature of molecular clouds are
A) 100 molecules per cubic centimeter, 10-30 Kelvin. B) 300 molecules per cubic centimeter, 10-30 Kelvin. C) 1000 molecules per cubic centimeter, 10-30 Kelvin. D) 100 molecules per cubic centimeter, 100-300 Kelvin. E) 300 molecules per cubic centimeter, 100-300 Kelvin.
A spaceship carrying a light clock moves at a speed of 0.960c relative to an observer on Earth. Relative to a frame of reference that is fixed with respect to Earth, how long does it take the clock on the ship to advance 1.00 s?
A) 0.960 s B) 1.22 s C) 2.59 s D) 3.57 s E) 5.83 s
When we say work is done by a force, we mean the force does
a. all the work. b. positive work. c. negative work. d. zero work.