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A converging lens of focal length 20 cm is used to form a real image 1.0 m away from the lens. How far from the lens is the object?
A 60 kg woman stands on a very light, rigid board that rests on the bathroom scale at each end. She is 1.5m away from one side and 0.5 m from the other.
Suppose the pilot, starting again from rest, opens the throttle partway. Find the net force acting on the boat
An astronaut on the surface of the Moon fires a cannon to launch an experiment package, which leaves the barrel moving horizontally. What time interval does this trip around the Moon require
During this process the arrow's deceleration has a magnitude of 1600 and the block's acceleration has a magnitude of 450. Explain how long does it take for the arrow to stop moving with respect to the block?
Moving to the right is postive. A 9.1 g object moving to the right at 17 cm/s makes an elastic head on collision with a 20 g object moving in the opposite direction at 19 cm/s. Find the velocity of the second object after the collision
A massless frictionless pulley, an ideal string, and two masses (m1 = 2.50 kg and m2 = 4.00 kg) are connected together, What is the magnitude of the tension force in the string
You measure an electric field of 1.35×106N/C at a distance of 0.141m from a point charge. There is no other source of electric field in the region other than this point charge. What is the electric flux through the surface of a sphere that has thi..
q1. when blue light of wavelength 450 nm falls on a single slit the first dark bands on either side of center are
6.00g of nitrogen gas at 22.0 degree celsius and an initial pressure of 4.00atm undergo an isobaric expansion until the volume has tripled, What amount of heat energy is transferred from the gas as its pressure decreases
A block of mass 4 kg is compressing a spring with K=2500 N/m a distance of 0.3 m. How much work does the spring do on the block
What is the tangential velocity of a satellite in a circular orbit 300km above the surface of the Earth, How long does the satellite take to complete one orbit
A string passing over a pulley has a 3.70 kg mass hanging from one end and a 2.60 kg mass hanging from the other end. What is the average frictional torque acting on the pulley
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