A car originally traveling at 30 m/s manages to brake for 5.0 seconds while traveling 125 m downhill. At that point the brakes fail. After an additional 5.0 seconds it travels an additional 150 m down the hill. What was the acceleration of the car after the brakes failed?
4.0 m/s2
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The Kuiper Belt is
A) another name for the Asteroid Belt. B) a band of icy planetesimals found beyond Neptune's orbit. C) where all comets come from. D) the name given to icy bodies found between Jupiter and Saturn. E) the name given to icy bodies found between Mars and Jupiter.
An air-filled 39.1 ?H solenoid has a length 4.0 cm and cross-sectional area 0.60 cm2. How many turns are in this solenoid?
A) 1200 B) 12 C) 120 D) 144 E) 21000
Cart A with momentum p (in magnitude) collides with cart B at rest and rebounds. What can you say about the momentum of cart B after the collision?
Imagine that at a certain place in a river, water moves horizontally to the left. Consider an oriented sur-face that faces in a direction that is 30° upward of right. The flux of water velocity through this surface is
A. positive. B. negative. C. zero. D. Impossible to determine from the given information