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You toss a racquetball directly upward and then catch it at the same height you released it 2.24 s later. Suppose air resistance is negligible.
1. What is the initial velocity of the ball?
2. What is the maximum height of the ball?
A 4.80 long, 600 steel beams extends horizontally from point where it has been bolted to the framework of a new building under construction. A 75 construction worker stands at the far end of beam.
still not sure which equation to use. asked previously and feel the answer was not right. stone thrown vertically
A light ray initially in water enters a transparent substance at an angle of incidence of 39.0°, Calculate the speed of light in the transparent substance
1 the speed of light in a material is 0.50 c. what is the critical angle of a light ray at the interface between the
show that in any prism the area of a right section is equal to the product of the base and the sine of the angle
Find the electric field of a solid sphere of charge, with the nonuniform charge density ρ = Ar, with A an overall constant
A nucleus is moving in the direction at 4.8x10^5 m/s when it decays into an alpha particle (4He) and a 234Th nucleus. what is the speed of the thorium nucleus
A block of mass 3.1 kilogram rests on a frictionless inclined plane, held in place by a string of mass 0.023 kilogram. Determine how long does it take a wave to travel from one end of the string to the other
A crane lifts a 2000kg load 40 meters. what will be the work done by the load? If it takes 8 seconds to do this work what is the power output for the crane
A rock is thrown directly upward from the edge of the roof of a building that is 32.5 meters tall. The rock misses the building on its way down, and is observed to strike the ground 4.00 seconds after being thrown. Neglect any effects of air resistan..
In a lightning bolt, a large amount of charge flows during a time of 2.6 x 10-3 s. How much charged has flowed during the lightning bolt
A diving board oscillates with simple harmonic motion of frequency 2.10 cycles per second what is the highest amplitude with which the end of the board can vibrate in order that a pebble placed there would not lose contact with the board all throu..
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