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To basketball player bounces the 0.60-kg basketball to anotherplayer by bouncing it off the court. The ball hits the court with aspeed of 4.5 m/s at an angle of65° from the vertical. If the ballrebounds with the same speed and angle, what was the impulse delivered to it by the court?
A goldfish bowl is spherical, 8 cm in radius. A goldfish is swimming 3.0 cm from the wall of the bowl. Where does the fish appear to be to an observer outside
Suppose that the sound level of a conversation is initially at an angry 74 dB and then drops to a soothing 50 dB. Assuming that the frequency of the sound is 516 Hz, determine the (a) initial and (b) final sound intensities (in ?W/m2) and the (c) ..
The ball loses contact with the spring and leaves the gun when the spring is still compressed by 12 cm. Elucidate what is the speed of the ball when it hits the ground, 1.4 m below the spring gun?
A point charge of 6.1 µC is at the center of a cubical Gaussian surface 60 cm on an edge. What is the net electric flux through the surface
a stone is projected at a cliff of height h with an initial speed of 44.0 m/s directed at an angle θ0 = 62.0° above the horizontal. find the height h of the cliff
Light in a transparent material (index of refraction 1.333) strikes the boundary with another transparent material (n = 1.010). What is the critical angle for total internal reflection
A 20.0kg rock slides on a rough horizontal surface at 5.50 m/s and eventually stops due to friction. What average thermal power (Watts) is produced as the rock stops
Find the work done by the force on the particle as it moves across the following distances, from x = 0 m to x = 4.00 m
Consider a 4.7mm-diameter wire made from copper (mass density of 8.9 g/cc). THe wire is carrying a current of 8milliamp. What is the average drift speed
Mars orbits the Sun at a mean distance of 228 million km, in a period of 687 days. The Earth orbits at a mean distance of 149.6 million km, in a period of 365.26 days. what is the angle between the Earth-Sun line and the Mars-Sun line
An object of mass M = 15.0 kg is attached to a cord that is wrapped around a wheel of radius r = 12.0 cm and mass m = 50.0 kg. The object slides down a frictionless incline which makes an angle ? = 40.0° with the horizontal. Assume the axle of the..
What is the speed (in m/s) of the Galapagos Islands, on the earth's equator, due to our planet's spin on its axis? What is the earth's speed (m/s) due to its rotation around the sun?
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