The speed of water in a stream is affected by
A) hydraulic gradient, recharge, and channel geometry.
B) gradient, discharge, and channel geometry.
C) high gradient, laminar flow, and erosion.
D) gradient, turbulence, and friction.
Answer: B
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A) 128 J B) 3.14 kJ C) 26.7 J D) 1.26 kJ E) 24.0 J
A light aluminum ball and a heavy lead ball of the same size roll down an incline. When they are halfway down the incline, they will have identical
A) kinetic energies. B) potential energies. C) momentum. D) inertias. E) none of the above
Water in a car radiator sometimes boils explosively when the radiator cap is removed, which is due to sudden
A) rapid evaporation. B) reduced pressure. C) excess condensation. D) excess vaporization.
Samus is exploring the planet Zebes in the star system Metroid Prime (where the laws of physics are the same as on Earth and in our universe) in a ship moving at constant velocity. She turns on her headlamps as she encounters some strange fog. Ridley, the villain lying in wait, is at rest with respect to Samus. The speed of the light from Samus's headlamps as measured by Ridley depends most
importantly on