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You toss a tennis ball straight upward. At the moment it leaves your hand it is at a height of 1.5 m above the ground, and it is moving at a speed of 7.8 m/s.
(a) How much time does it take for the tennis ball to reach its maximum height?
(b) What is the maximum height above the ground that the tennis ball reaches?
(c) When the tennis ball is at a height of 2.2 m above the ground, what is its speed?
(d) When the ball hits the ground what is its velocity?
A proton starting from rest is accelerated in a cyclotron to a speed of 3.0•106 m/s. Find the work done on a proton by the electrical force of the cyclotron.
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The pressure of sulfur dioxide (SO2) is 2.89 x 104 Pa. Find the translational rms speed of the sulfur dioxide molecules
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an 30-kg person puts on a life jacket jumps into the water and floats. the jacket has a volume of 3.4 x 10-2 m3 and is
After experiment, the hand warmer has fastest temperature increase, but confused how to answer this. Find which pack had the greatest change in enthalpy
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The cliff divers of Acapulco push off horizontally from rock platforms about 35m above the water, What minimum pushoff speed is necessary to clear the rocks
A crane uses a cable to lift and lower an 845 kg mass. Compute the tension in the cable under the following conditions: As it is being lifted, the speed of the mass increases by 2.5 m/s each second. The mass is lifted at a speed of 15 m/s.
An unspecified force causes a 0.5-kg object to accelerate at 0.2 m/s2. If 0.3 kg is added to the 0.5-kg object and the force remains the same, what is the acceleration (in m/s2) of the heavier object?
How fast is the roller coaster moving at the top of the loop
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