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A squash ball dropped from a height of 8ft above the floor, rebounds to a height of 3 feet. With what velocity must the ball be projected against the wall of the same material as the floor, at a height of 6ft above the floor, in order that it may rebound a horizontal distance of 15 ft?
Bicyclists in the Tour de France do enormous amounts of work duringa race. How much work does he do during a 85 km race in which his average speed is11.0 m/s
express What is the light intensity on a wall. How far does the ball drop vertically by the time it reaches the plate 18.0 m away.
a 4 kg box is pushed up a frictionless 30 degree incline with a force of 40n. this 40 n force is parallel to the
a horizontal 30-cm-long conducting rod is rolling along two conducting rails that are parallel to the x-axis. the rod
A 0.12 μF capacitor, initially uncharged, is connected in series with a 10 kΩ resistor and a 12 Volt battery of negligible internal resistance. Determine how long does it take the capacitor
Calculate the force of gravity on a spacecraft 32000 km (5 earth radii) above the Earth's surface if its mass is 1800 kg. N (toward the earth)
You have a wire of length L = 1.9 m for making a square coil of a dc motor. The current in the coil is I = 1.6 A, Find the maximum torque exerted on the coil
Two narrow slits are illuminated by a laser with a wavelength of 560 nm. Calculate the distance between the two slits
A wire of unknown material has a cross-sectional area 7 mm2 and length 15 cm. What is the resistivity of the unknown material
The coefficient of kinetic friction between the floor and a suitcase is 0.272. determine how far can it be pushed across the level floor with 642 J of work
gas is confined in a tank at a pressure of 1.0 x 108 pa and a temperature of 15.0 c. if half the gas is withdrawn and
A mass-spring system oscillates with an amplitude of 4.60 cm. If the spring constant is 240 N/m and the mass is 435 g, determine the mechanical energy of the system. Calculate the speed of the sphere's CM at the bottom of the ramp. Determine the m..
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