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Player serves a tennis ball 2.2 m above the ground. The ball leaves his racquet with a speed of 56 m/s at an angle 10 degree below the horizontal. The horizontal distance to the net is 7 m, and the net is 1.0 m high.
what's the ball clea the net?
An electron with kinetic energy of 6.0 x 10-16 J is moving to the right along the axis of a cathode-ray tube. There is an electric field vector = (2.0 x 104 N/C) j in the region between the deflection plates.
Billy is running on level ground with a speed of 3.5 m/s. He attempts to jump a ditch that is 1.5 meters wide. determine the minimum vertical component of velocity when he jumps
A swing is made from a rope that will tolerate a maximum tension of 6.44 x 102 N without breaking. What is the mass of the heaviest person
Determine out the angle with respect to the horizontal (angle of deviation) of the beam as it emerges from the prism.
A 2.4 kg breadbox on a frictionless incline of angle %u03B8 =43 is connected, by a cord that runs over a pulley, What is the speed of the box when it moves 10 cm down the incline
A 645N woman climbs a staircase that rises at 50 degrees above the horizontal and is 4.95m long. Her speed is a constant 40.0cm/s. How much work has gravity done on her as she climbed the stairs
Estimate the average force exerted by a shot-putter on a 7.0-kg shot if the shot is moved through a distance of 2.4m
the center of a 1.50 diameter spherical pocket of oil is 1.00 beneath the Earth's surface.Estimate by what percentage directly above the pocket of oil would differ from the expected value of for a uniform Earth?suppose the density of oil is 8.10^2 ..
Determine the net Force (magnitude and direction) acting on wire 3 due to wires 1 and 2 for currents of 10A. Each wire has a horizontal length of 50 cm and each wire is seperated by a distance of 2 cm
Do you agree with IBM's employment response to competition from software development contractors in India, like Wipro, that are expanding into IT consulting services? Why or why not.
A horse is pulling a buggy. the total force by the horse is 475N applied horizontally. What is the force of friction on the driver and buggy
What is the maximum speed with which a 1200- car can round a turn of radius 71 on a flat road if coefficient of static friction between tires and road is 0.45.
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