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Cliff and Will are carrying a uniform 2.0m board of mass 74kg. Will is supporting the board at the end while cliff is 0.6m from the other end as shown in the following figure. Cliff has attached his lunch to his end of the board, and the tension in the string supporting the lunch is 200N. Find the normal forces exerted by Cliff and Will.
A boy of mass 50 kg runs up a hill of vertical height 300 m in 20 minutes. calculate the work he does climbing the hill
A 11.0 kg monkey starts to climb a long rope to reach a banana located at a height of 6.50 m, Calculate the least amount of time the monkey could take to reach the banana without breaking the rope
The suspended 2.82 kg mass on the right is moving up, the 2.2 kg mass slides down the ramp, and the suspended 8.1 kg mass on the left is moving down. There is friction between block and ramp. What is the acceleration of a three block system.
An ultracentrifuge having a diameter of 17.3 cm produces an extremely large acceleration of 2.71E+5 m/s2. estimate the angular speed of the centrifuge
Would you expect to get a more accurate value for m using Equation m = h'/h in the situation where the lens is closest to the object or in the situation where the lens is furthest from the object?
A 160 g ball on a 70.70 cm long string is swung in a vertical circle about a point 184 cm above the floor. The string all of a sudden breaks when it is parallel to the ground and the ball is moving upward. The ball reaches a height 543 cm above th..
A spring with spring constant 14 hangs from the ceiling. A ball is attached to the spring and allowed to come to rest. It is then pulled down 3.0 and released. The ball makes 17 oscillations in 16 seconds. What is it the mass of ball.
A bead with a mass of 0.02 g and a charge of 20nC is free to slide on a vertical rod. At base of the rod is a fixed 20nC charge.
A 02385 mH inductor has a length that is four times its diameter. If it is wound iwth 10.3 cm^-1 truns per centimeter, what is the length? Answer in units of m.
A block rests on the frictionless horizontal surface and is attached to a spring. While set into simple harmonic motion, block oscillates back and forth with an angular frequency of 6.5 rad/s.
You can think of the work?kinetic energy theorem as a second theory of motion, parallel to Newton's laws in describing how outside influences affect the motion of an object. Use the work-kinetic energy theorem to find the net work that is done on t..
Two carts on a frictionless air track are made to travel toward each other. As they collide they stick together. if the cart on the left has a mass of 250 grams and is moving at 0.2 meters per second to the right.
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