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Q. A 54.0 kg skateboarder wants to just make it to the upper edge of a "quarter pipe," a track that is one-quarter of a circle with a radius of 3m. What speed does he need at the bottom?
What is velocity of the boat relative to the shore
if a 2.5 kg ball puts 118 joules of energy in a spring with a 614 n/m constant, how far is the spring compressed.
What are the x and y components of the shell.
The net force on the object is not zero in Tubby's frame, but there is an inertial frame in which net force is zero.
Two blocks are connected by a string. The smooth inclined surface makes an angle of 35 degrees with the horizontal, and the block on the incline has a mass of 5.70 kg. The mass of the hanging block is m= 2.90 kg. Find the direction of the hanging blo..
A ceiling fan with 89 diameter blades is turning at 65. Presume the fan coasts to a stop 30 after being turned off. Throughout how many revolutions does the fan turn while stopping.
An proton (m = 1.67 ´ 10-27 kg and q = 1.6 ´ 10-19 C) travelling at 2.7 × 105 ms-1 enters a magnetic field of 1.2 T at right angles to the direction of motion of the electron. What is the centripetal force on proton.
A 275 ball is tied to a string. It is pulled to an angle of 4 and released to swing as a pendulum. A student with a stopwatch finds that 17 oscillations take 20.
Find out the height from which you would have to drop a ball so that it would have a speed of 9.7 m/s just before it hits the ground.
A 56.0 kg person jumps from rest off the 9.0 m high tower straight down into the water. Neglect air resistance throughout the descent. She comes to rest 3.40 m under the surface of the water. Find out the magnitude of the average force that the water..
what volume should the balloon have after being inflated. Billiard ball A of mass mA=0.400kg moving with speed vA=1.80m/s strikes ball B, initially at rest of mass mB=0.500kg. As a result of collision, ball A is deflected off at an angle of 30.0 deg..
Compute the camels eastward displacement
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