When a car goes around a curve, it has a tendency to skid outwards. Is the frictional force between the tires and the ground that keeps the car from skidding kinetic or static?
A) kinetic
B) static
B
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Work-Energy Theorem: A certain car traveling at 34.0 mph skids to a stop in 29 meters from the point where the brakes were applied. In approximately what distance would the car have stopped had it been going 105.4 mph?
A. 279 m B. 158 m C. 90 m D. 51 m E. 29 m
A spaceship carrying a light clock moves at a speed of 0.96 c relative to an observer on Earth. Relative to a frame of reference that is fixed with respect to the earth, how long does it take the clock to advance 1 s?
A) 5.83 s B) 3.57 s C) 0.96 s D) 1.22 s E) 2.59 s
_____ is the rate at which a star moves across the sky
A) Proper motion B) Reflective motion C) Reflex motion D) Intrinsic motion
A nonconducting sphere of radius 10 cm is charged uniformly with a density of 100 nC/m3. What is the magnitude of the potential difference between the center and a point 4.0 cm away?
A. 12 V B. 6.8 V C. 3.0 V D. 4.7 V E. 2.2 V