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A ball is thrown horizontally of a cliff. If the initial speed of the ball is 17 m/s and the cliff is 77 m high, how far from the base of the cliff will the ball land in the water below?
Calculate the answer in meters (m) and rounded to three significant figures.
Two circular hoops, with masses and radii in the ratios m2/m1=4 and R2/R1=4, rotate with angular speeds in the ratio ?2/?1=2. What is the ratio of the kinetic energies K2/K1
Determine how much energy is required to raise the temperature of 1000 gram of ice initially at 20oC to 120oC steam
Water flows at 0.20L/s through a 12-m-long garden hose 2.0cm in diameter that is lying flat on the ground
A broken spaceship is located 10 km above the center of a large circular thin sheet of unknown dust. The sheet has a radius of 10^6km and a density of 7x10^11kg/m^2.
Two 10.0 kg masses are hanging from the ceiling of an elevator that is accelerating upwawrd at 2.00 m/s. What is the tension in each rope
A farm boy studying physics believes that he can fit a 15.0m long pole into a 12.0m long barn if he runs fast enough, How does this fit with the idea that when he is running the barn looks even shorter to him than 12.0m
A "swing" ride at a carnival consists of chairs that are swung in a circle by 19.3 m cables attached to a vertical rotating pole, Find the speed of the chair
A 0.17 kg baseball is launched from the roof of a building 12m above the ground. What is the speed of the ball as it strikes the ground
Temperatures are often measured with electrical resistance thermometers. Suppose that the resistance of such a resistance thermometer is 152 when its temperature is 25.4 °C. What is the temperature of the liquid
A microwave oven of mass 12.5kg is pushed a distance 8.00m up the sloping surface of a loading ramp inclined at an angle of 36.2? above the horizontal, What is the work done on the oven by the force
at the science olympiad competition a group of middle school students uses a trebuchet that launches a tennis ball from
three equal positive point charges of magnitude q4.00 mu c are located at three corners of a square of edge length d6.9
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