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A student sits at rest on a piano stool that can rotate without friction. The moment of intertia of the student-stool system is 4.1 kg*m^2. A second student tosses a 1.5 kg mass with a speed of 2.7 m/s to the student on the stool, who catches it at a distance of 0.40 m from the axis of rotation. What is the resulting angular speed of the student and the stool?
A person throws a discus (mass = 2 kg) at an angle of 40o to thehorizontal with a velocity of 20 m/s. Neglect air resistance for these questions. Calculate the distance the object travelled horizontally priorto ground contact if the discus was rel..
scenario a man begins pushing a box from rest up a ramp angled at 22 degrees from horizontal exerting a constant force
At a recent rock concert, a dB meter registered 114 dB when placed 1.30 m in front of a loudspeaker on the stage, What was the power output of the speaker
Two manned satellites approaching one another at a relative speed of 0.300 m/s intend to dock. What is the loss of kinetic energy in this inelastic collision
The electron gun of a television tube accelerates an electronfrom rest through a potential difference of 350V. evaluate the change in the potential energy of the electron
One hectare is defined as 10^4 m^2. (Meaning 10 to the 4th power etc) One acre is 4x10^4 ft^2. How many acres are in one hectare
A 10.0 m rope of negligible mass connects two astronauts, each having a mass of 75.0 kg. find the initial angular momentum of the system
a loudspeaker at the origin emits sound waves on a day when the speed of sound is 340 ms. a crest of the wave
An infinitely long line of charge has linear charge density 5.00×10?12C/m. Calculate the protons initial kinetic energy
A horizontal plank 4.00 m long and having mass 20.0 kg rests on two pivots, Find the magnitude of the force exerted on the plank by the second pivot
To get an idea of how empty deep space is on the average, perform the following calculations. Find the radius of a sphere of this volume in light years
A certain dog whistle operates at 22.7 kHz, while another (brand X) operates at an unknown frequency. estimate the operating frequency of brand X
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