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A uniform rod of mass 2.15kg and length 3.49m is hinged on one end to the wall. The other end is held up by a rope which makes an angle 90 deg with the rod. What is the tension, T, in the rope so that the rod is in static equilibrium?
A bullet with a mass of 4.1 gram and a speed of 650 m/s is fired at a block of wood with a mass of 9.6 x 10 kilogram. Obtain the speed of the bullet when it exits the block
A bullet of mass 0.002 kg moving at 421 m/s impacts a large fixed block of wood and travels 6.1 cm before coming to rest. find the force exerted by the wood on the bullet
A T-bar tow is planned in a new ski area. At any one time, it willbe required, to pull a maximum of 73skiers up a 598-m slope inclined 15°at above the horizontal at a speed of 2.50 m/s.
You are designing an elevator for a hospital. The force exerted on a passenger by the floor of the elevator is not to exceed 1.51 times the passenger's weight. What is the maximum speed of the elevator
two blocks of mass m18.50 kg and m21.80 kg sit on a 38.0 angle incline.i assuming the incline is frictionless calculate
Two identical conducting spheres, fixed in place, attract each other with an electrostatic force of 0.159 N when their center-to-center separation is 43.2 cm. calculate the positive charge in coulombs on the other
research and briefly identify the energy conservation measures that reduce a buildings energy use by reducing one or
Assume the role of a chief researcher for the state Department of Education who is examining two groups with similar educational deficiencies.
Water at the top of Horseshoe Falls (part of Niagara Falls) is moving horizontally at 8.7m/s as it goes off the edge and plunges 53 m to the pool below. at what angle with respect to the vertical is the falling water moving as it enters the pool
A banked circular highway curve is designed for traffic moving at 77-km/h. The radius of the curve is 153 m. Traffic is moving along the highway at 46-km/h on a rainy day. What is the minimum coefficient of friction between tires and road that wil..
Solar energy is incident on the pond at an average rate of 400 . If the water absorbs all the solar energy and does not exchange energy with its surroundings, explain how many hours will it take to warm from 15 to 25 ?
A water pump delivers 6hp of shaft power when operating. If the pressure differential between the outlet and the inlet of the pump is measured to be 1.2 psi when the flow rate is 15ft3/s
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