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An object of mass M = 42.8-kg is suspended from the ceiling by a string of length L = 39.8-cm and mass m = 16.4-g. I flick the string so as to set up a pulse that travels from the bottom of the string to the top and back. Calculate the time it takes for the pulse to make one round trip.
A ball is traveling horizontally over a volleyball net when a player "spikes" it, driving it straight down to the ground. What is the magnitude of the impulse from the spike
An old-fashioned (vinyl) record rotates at a constant rate of 33 revolutions per minute. Evaluate what is its angular velocity
A church organ pipe will sound a note at 359 Hertz when the ambient temperature is 20.7°C. find what frequency of note will the same pipe make
The current in the coil above is adjusted to produce a fieldstrength of 2.0 mTesla. The axis of the coil is horizontal andalong the east-west direction. Find the direction of the net field from both sources
A 2.30-kg object is attached to a spring and placed on frictionless, horizontal surface. Find the maximum acceleration of the object
A 114 gram hockey puck sent sliding over ice is stopped in 14.9 meter by the frictional force on it from the ice. Find the coefficient of friction between puck and ice
A sled slides without friction down a small, ice covered hill. If the sled starts from rest at the top of the hill, its speed at the bottom are 7.50 m/s. On the second run the sled starts with a speed of 1.50m/s at the top. When it reaches the bottom..
Assume blue light (λ = 500 nm) is used to decide the position of an electron to within the wavelength of the light. What will be the uncertainty in the electron’s velocity?
a ball is rolled off a table with an initial horizontalbelocity of 1.8 m/s. how long does it take for the ball to land in the box
A block of mass 2.0 kg is at rest on an incline with variable angle (theta). The distance from the block to the bottom end of the incline is 300m. if the incline is set to 40 degrees, how long will it take the block to reach the bottom if it starts..
A hydraulic jack is made with a small piston 1.1 cm in diameter that is used to move a large piston 5.3 cm in diameter. how heavy a load can he lift with the jack
Consider a merry-go-round that has the form of a disc with radius 5.4 m and mass 160 kg. If five children, what is the total moment of inertia
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