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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 5.5 m/s at an angle of70° from the vertical. If the ballrebounds with the same speed and angle, what was the impulse delivered to it by the court?
An AC power generator produces 50A (rms) at 3600V. The voltage is stepped up to 100,000V by an ideal transformer, What is the rms current in the long-distance line
A lens with a focal length of 60cm is sitting 90cm in front of a lens of focal length 40cm. where is the final image formed
A ball is kicked with an initial velocity of 16 m/s in the horizontal direction and 14 m/s in the vertical direction. What maximum height is attained by the ball
An object of mass 1.9 kg starts from rest and slides down an inclined plane 80 cm long in 0.46 s
An airplane is flying horizontally with a speed of 1000 km/h(280m/s) when an engine falls off. avoid air resistance,assume it takes 30s for the engine to hit the ground.
We've seen that fish can control their buoyancy through the use of a swim bladder, a gas-filled organ inside the body. How many moles of air are in the swim bladder when the fish is at a depth of 97ft
An organ pipe is open at both ends. It is producing sound at its fifth harmonic, What is the length of the pipe
a ship has a propeller drive shaft that is turning at 1500rmrevkern 1pt rmkern 1pt rmmin while developing 1750hp . it
a distant quasar is found to be moving away from the earth at 0.8 c. a galaxy closer to the earth, What is the recessional speed of the quasar
A projectile is fired at v0 = 381.0 m/s at an angle of ? = 65.7o with respect to the horizontal, How far will the projectile travel in the horizontal direction, R
Under normal conditions, humans radiate electromagnetic radiation of frequency 3.33 x 1013 Hz. What is the wavelength associated with this radiation
An airplane propeller is 2.08 m in length (from tip to tip)with mass 117 kg. The propeller is rotating at 2400 rev/min aboutan axis through its center. What is its rotational kinetic energy
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