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A soccer player kicks the ball toward a goal that is 37.0 m in front of him. The ball leaves his foot at a speed of 28.8 m/s and an angle of 76.4 ° above the ground. Find the speed of the ball when the goalie catches it in front of the net.
The sound level, ß, measured at a radius r = 11.00 meters from a point sound source that is emitting sound equally in all directions is 95.17 dB, what is the sound power emitted by the source
For the cases in which total internal refection is possible from either the top or bottom surface of a layer, determine the amount by which the angle of incidence exceeds the critical angle.
A flea pulls on a puck with force 7 microN at an angle of 30?. Another flea pulls on the puck with force 2 microN at an angle of -60?.
A capacitor is connected to an ac generator that has a frequency of3.7 kHz and produces a voltage of1.9 V. The current in the capacitor is 32 mA. What voltage does the second generator produce
As a engineer, you are designing a heat pump that is capable of delivering heat at the rate of 22 kW to a house. The house is located where, in January, the average temperature is 10°C.
A thin film of glass (n = 1.48) floats on a liquid of n = 1.35 and is illuminated by light of ? = 600 nm incident from air above it. Find the minimum thickness of the glass
A rocket is fired at a speed of 82.0 m/s from ground level, at an angle of 31.0 ° above the horizontal. The rocket is fired toward an 6.95-m high wall, which is located 18.0 m away.
q1. a rectangular barge that is 5.00 m long and 3.00 m wide floats in freshwater. when the barge is loaded with cargo
What is the volume of the bubble when it reaches just below the surface of the lake, where temperature is 20°C.
A 2.00 meter long horizontal plank whose mass is 3.00 kg is placed so that the very end (the right end) rests on a retaining wall. Find the force acting on the board by the retaining wall
Arranged on the floor are five concrete blocks, each 28.4kg and 0.265m tall. What is the minimum work required to stack all five vertically
A telescope consists of a mirror with radius of curvature 6.5 m and an eyepiece. If an astronomer would like the telescope to have a magnification of 114, what focal length eyepiece should he use?
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