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Two cars are traveling along a straight line in the same direction, the lead car at 25.2m/s and the other car at 31.0m/s. At the moment the cars are 41.9m apart, the lead driver applies the brakes, causing her car to have an acceleration of -2.07m/s2. How long does it take for the chasing car to stop?
A 4.00-g bullet is moving horizontally with a velocity of +355 m/s, where + sign indicates that it is moving to the right. The bullet is approching two blocks resting on a horzizonta frictionless surface.
A circular loop of wire with a diameter of 0.626 m is rotated in a uniform electric field to a position where the electric flux through the loop is a maximum. At this position, an electric flux is 7.50 x 105 N×m2/C. find the magnitude of the elec..
Two small metallic spheres, each of mass 0.20g, are suspended as pendulums by light strings from a common point.
Assume it takes 8.00 min to fill a 25.0-gal gasoline tank. (1 U.S. gal = 231 in.3) (a) Calculate the rate at which the tank is filled in gallons per second. (Please provide numerical answer in gal/s)
What is the minimum rate of rotation, in revolutions per minute, required for the spheres to contact the cylinder wall?
A novice skier, starting from rest, slides down a frictionless 34° incline whose vertical height is 128 m. How fast is she going when she reaches the bottom.
If the barge can only be pushed 18 cm deeper into the water before water overflows to sink it, how many 400 kg horses can it carry.
A ceiling fan with 80-diameter blades is turning at 68. Suppose the fan coasts to a stop 27 after being turned off. What is the speed of the tip of the blade 10 after the fan is turned off.
A steel aircraft carrier is 370 m long when moving through the icy North Atlantic at a temperature of 2°C. By how much does the carrier lengthen when it is travelling in the warm Mediterranean Sea at the temperature of 21 °C.
The sound produced by the loudspeaker has a frequency of 12002 Hz and arrives at the microphone via two different paths. The sound travels through the left tube LXM that has a fixed length.
What vertical height does block reach above its starting point. What speed does it have when it slides back down to its starting point.
Find the position of the object to acquire real, magnified image, inverted, and virtual, upright image.
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