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A 2.22 kg steel ball strikes a massive wall at 10.4m/s at an angle of alpha = 58.4° with theplane of the wall. It bounces off with the same speed and angle. If the ball is in contact with the wall for 0.204 s, what is the magnitude of the average force exerted on the ball by the wall?
A projectile is fired in such a way that its horizontal range is equal to 14 times its maximum height. What is the angle of projection
Water flows with speed 1 m/s from a small hole made at the bottom of a tank filled with water. Find height of the tank
A student has built a 20-cm-long pinhole camera for a science fair project. She wants to photograph the Washington Monument, How far should she stand from the Washington Monument
If a 4 cm piece of insulation is added to the pine ceiling kpine = 0.120 J/msC kinsul = 0.042 J/msC If a 4 cm piece of insulation is added to the pine ceiling , find the interface temperature for the pine and insulation.
Light of wavelength 665 nm is used to illuminate normally two glass plates 12 cm in length, How many bright fringes appear along the total length of the plates
You are now studying a length of wire that has been coiled up to create a circular coil of 4 turns all arranged compactly, The loop has radius of 0.0240 m and a current of 49.5 A, What is the strength of the magnetic field at the center of the loop
If you shake one end of a taut rope steadily five times each second, what would be the period of the sinusoidal wave set up in the rope
Two crates connected by a rope of negligible mass lie on a horizontal surface. Create A has mass mA and crate has mB. calcuate the tension in the rope connecting the block
A platform moves up and down in SHM, with amplitude 0.050 m. Resting on top of the platform is a block of wood. What is the shortest period of motion for the platform so that the block will remain in constant contact with it?
Suppose the projectile is traveling 85.0 m/s at its maximum height of y = 272 m. Explain how much work has been done on the projectile by air friction?
q1. a dockworker applies a constant horizontal force of 79.0 to a block of ice on a smooth horizontal floor. the
A block of weight 4.5 N is at rest on a horizontal table. An upward vertical force of 2.2 N is applied to the block by means of a string. What is the magnitude of the force exerted by the block
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