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A car is traveling over a hill. If, using a Cartesian coordinate system with origin O at the top of the hill, the hill;s profile is described by the function y=-(.003m^-1)x^2, where x and y are in meters, determine the minimum speed at which the car would lose contact with the ground at the top of the hill. Express answer in km/h.
A ball having amass of 150 g strikes a wall with aspeed of 4.8 m/s and rebounds withonly 50% of its initial kinetic energy. What is the magnitude of the impulse on the wall from the ball
A 41.5 g sample of chloroform is condensed from a vapor at 61.6°C to a liquid at 61.6°C. It liberates 9800 J of heat. What is the heat of vaporization of chloroform
a 8.4 kg mass is attached to a light cord that passes over a massless frictionless pulley. the other end of the cord is
Water flows out of a large open reservoir through a small pipe that opens to the atmosphere 30 m below the level of the water in the reservoir.
question if barium needs a minimum frequency of 6.07x1014 s-1 to eject electrons calculate the kinetic energy of the
A 5.60kg block hangs from a spring with spring constant 2120N/m . The block is pulled down 5.20cm from the equilibrium position, What is the total mechanical energy of the motion
A rectangular block of wood, 10 cm*15 cm*40 cm, has a specific gravity of 0.6. What fraction of the block is submerged
A 0.1 kg ball is thrown towards a 0.3 kg rod that is 0.75 m long and hanging vertically from a frictionless hinge at its upper end. If the ball is traveling horizontally at 0.6 m/s just before striking the rod 0.5 m below the hinge and then reboun..
Find the charge on sphere A. How far from the dog will the suitcase land.
A disk of mass M is free to rotate about a fixed horizontal axis. What is the downward acceleration of the mass
A mortar* crew is positioned near the top of a steep hill. Enemy forces are charging up the hill and it is necessary for the crew to spring into action. How long will the mortar shell remain in the air
In a closed circuit (that consists of a electric heater, a metal conducting rod, and two rails), it must have an outside force applied to keep the rod moving at a constant speed. What is the velocity of the moving conducting rod
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