Who developed the quantum theory in 1900 and has a constant named for him?
a. de Broglie
b. Bohr
c. Planck
d. Einstein
c
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A ventilation fan with a moment of inertia of 0.034 kg·m2 has a net torque of 0.14 N·m applied to it. What angular acceleration does it experience? Select one:
a. 4.1 rad/s2 b. 5.3 rad/s2 c. 3.2 rad/s2 d. 0.31 rad/s2
All four jovian planets are oblate, with larger polar than equatorial diameters
Indicate whether the statement is true or false
A moving van with a stone lightly glued to the midpoint of its ceiling smoothly moves at constant velocity. When the glue gives way, the stone falls and hits the floor
A) ahead of the midpoint of the ceiling. B) exactly below the midpoint of the ceiling. C) behind the midpoint of the ceiling. D) none of the above
Brick A is dropped from the top of a building. Brick B is thrown straight down from the same building, and neither one experiences appreciable air resistance. Which statement about their accelerations is correct?
A) The acceleration of A is greater than the acceleration of B. B) The acceleration of B is greater than the acceleration of A. C) The two bricks have exactly the same acceleration. D) Neither brick has any acceleration once it is released.