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A 49.0-g Super Ball traveling at 30.0 m/s bounces off a brick wall and rebounds at 15.0 m/s. A high-speed camera records this event. If the ball is in contact with the wall for 3.15 ms, what is the magnitude of the average acceleration of the ball during this time interval?
Find equation for the ground state energy for a particle in a spherically symmetric potential well,V(r) = -ad(r-a), and show that the bound state appears only when a is greater than some critical value.
A block of mass m = 3 kg is attached to a spring (k = 27 N/m) by a rope that hangs over a pulley of mass M = 7 kg and radius R = 9 cm, Find the maximum extension of the spring
A small block of mass m = 1.8 kg slides, without friction, along the loop-the-loop track shown. What is the kinetic energy of the mass at the point A on the loop
The pilot of an aircraft wishes to fly due west in a 49.8 km/h wind blowing toward the south. The speed of the aircraft in the absence of a wind is 192 km/h.
At rest, a car's horn sounds the note A (440 Hz). The horn is sounded while the car is moving down the street, What is the speed of the car
In civil aviation, a "standard turn" for level flight of apropeller driven airplane is one in which the airplane makes acomplete circular turn in 2 min. If the plane's speed is 168 m/s, what is the radius of the circle?
What is an average number of ozone molecule
how long will it take a sound wave to travel 10 cm if the velocity is 100 m/s. what is the propagation speed of water that travels 6 cm in 4 seconds
The two most prominent wavelengths in the light emitted by a hydrogen discharge lamp are 656 nm (red) and 486 nm (blue). Light from a hydrogen lamp illuminates a diffraction grating with 460 lines/mm , and the light is observed on a screen 1.7 m b..
Explain how many penguins of mass 27 kg each can stand on the ice block before they get their feet wet?
A small sphere of mass m and radius r slides down a smooth stationary large sphere of radius R under the action of gravity from a position of rest at the top. Find the value of theta at which the particle falls off
An air-filled toroidal solenoid has a mean radius of 14.6cm and a cross-sectional area of 4.95cm^2. What is the last number of turns that the winding must have
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