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A) A tennis ball is dropped from 1.51 m above the ground. It rebounds to a height of 0.822 m.
With what velocity does it hit the ground? The acceleration of gravity is 9.8 m/s2 . (Let down be negative.) Answer in units of m/s.
B) With what velocity does it leave the ground? Answer in units of m/s.
C) If the tennis ball were in contact with the ground for 0.00985 s, find the acceleration given to the tennis ball by the ground.
You are shining ultraviolet light on a gas of an unknown element. You know that an electron starts in a ground state with an energy of -16.30 eV. What is the energy of the first photon emitted
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Imagine that you are standing at the top of a cliff 45 m high overlooking the ocean and you throw a rock straight downward at a speed of 15m/s
Two infinite parallel plates separated by distance S are at potentials 0 and V0. What are the charge densities on the plates
In a local bar, a customer slides an empty beer mug down the counter for a refill. The height of the counter is h. What was the direction of the mug's velocity just before it hit the floor
A railway car moves past you at high speed. According to an observer riding on the railway car, a clock at the front of the car is synchronized with an identical clock at the rear of the car.
An ideal monatomic gas is the working substance of a Carnot engine. During the isothermal expansion the volume doubles. Compute the temperature of the reservoirs between which the engine operates
On a frictionless horizontal air table, puck A (with mass 0.253kg ) is moving toward puck B (with mass 0.365kg), which is initially at rest. After the collision, puck A has velocity 0.115m/s to the left, and puck B has velocity 0.655m/s to the right...
An air bubble has a volume of 1.80cm3 when it is released by a submarine 120 m below the surface of a lake. What is the volume of the bubble when it reaches the surface
a mortar crew is positioned near the top of a steep hill. enemy forces are charging up the hill and it is necessary for
Two different wavelengths of light are incident on a diffraction grating. One wavelength is513nm and the other is unknown. If the3rdorder of the unknown wavelength appears at the same position as the2ndorder of the 513 nm light, what is the value of ..
A war-wolf or trebuchet is a device used during the Middle Ages to throw rocks at castles and now sometimes used to fling large vegetables and pianos as a sport. A simple trebuchet.
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