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As soon as a traffic light turns green, a car speeds up from rest to 50.0 miles per hour with a constant acceleration of 9.50 mi/h•s. In the adjoining bike lane, a cyclist speeds up from rest to 20.0 mi/h with a constant acceleration of 12.5 mi/h•s. Each vehicle maintains a constant velocity after reaching its cruising speed.
(a) Compute for how long is the bicycle ahead of the car?
s
(b) Find by what maximum distance does the bicycle lead the car?
ft
A balloon contains 1.8mol of helium at 1.0atm initially at 180 degree C. How much work does the gas do in the process
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A 285-kg stunt boat is driven on the surface of a lake at aconstant speed of 13.5 m/s toward a ramp, which is angled at25.0° above the horizontal. The coefficient of friction betweenthe boat bottom and the ramp’s surface is 0.150, and theraised end o..
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