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A tennis player standing 12.6 m from the net hits the ball at 2.79° above the horizontal. To clear the net, the ball must rise at least 0.267 m. If the ball just clears the net at the apex of its trajectory, how fast was the ball moving when it left the racket?
Determine the tension in each string
You are called as an expert witness in the trial of a traffic violation. The facts are these: A driver slammed on his brakes and came to a stop with constant acceleration, How fast was he going when he hit his brakes
A destroyer sends a sonar pulse out to detect a submarine directly below the ship in the ocean. If the speed of sound in what is 1517 m/s and it takes 64.13 s for the return pulse to hit the hydrophone on the bottom of the ship, how deep is the su..
Find out the speed of the satellite
An object has a kinetic energy of 317 J and the momentum of magnitude 24.0 kg · m/s.
Atoms in a solid are in continuous vibrational motion due to thermal energy, What is the approximate period of oscillation of a typical atom
What force does the water exert on the man. explain how far does the tongue reach.
What is the Hall effect, give a real life example, list its applications, When an electric light bulb is operated on a low frequency AC, they noticeably flicker
What is the horizontal distance x (in metres) to the base of the wall supporting the mirror of the nearest point of the floor that can be seen reflected in mirror.
how fast the air flow over the upper surface of the wing. What is the coefficient of kinetic friction between the box and the floor.
At high noon, the Sun delivers 825W to each square meter of a blacktop road. If the hot asphalt loses energy only by radiation, what is its equilibrium temperature.
Consider two solid conducting spheres of radii r1 = 2 cm and r2 = 3 cm. Sphere 1 initially carries a net charge of +6 ?C, What is the voltage at the surface of sphere 1? What is the net charge on sphere 1? On sphere 2
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