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A 90 kg astronaut completes repairs on a 470 kg communications satellite, and then pushes off from the satellite. When no longer in physical contact, the astronaut is moving at 42 cm/s relative to the satellite. What change in velocity has the astronaut given the satellite?
A 99 kg man lying on a surface of negligible friction shoves a 71 g stone away from himself, giving it a speed of 4.0 m/s. What speed does the man need as a result.
If the moment of inertia of the wheel about its axle is 0.30kg*m2, what is the magnitude of the frictional torque.
A 0.10 kilogram ball is thrown straight up into the air with an initial speed of 12 m/s. Obtain the momentum of the ball at its maximum height
A mass on a spring vibrates in simple harmonic motion at a frequency of 4.0 Hz and an amplitude of 8.0 cm. what is the displacement of the mass when t = 3.7s
A wooden block with mass of 55 grams is floating in a pool, ranging up and down in simple harmonic motion of frequency of 3.00 Hz. At which frequency will swing up and down the bottle
Find out speed of the proton
A stone is dropped from rest from the roof of a 100-m high building; 2.00 s after that, a second stone is thrown straight down with initial speed v0, and the second stone passes the first stone 21.6 m above ground.
In the path shown below, the locations of a car driving around a track are shown at EQUAL time intervals where ?t = 20 s. The car starts with speed 40 m/s at x0 and uniformly slows down to 20 m/s from x0 to x2. The car then travels at a constant spee..
A person pushes with a force of 10.0 N on a stick pin to try to push it into a bulletin board. find the average pressure (in Pascals) on the board at the tip of the pin
An electron and a proton are accelerated starting from rest through a potential difference of 10 million volts. Find the momentum (in MeV/c) and the kinetic energy (in MeV) of each
A playground merry-go-round of radius R = 1.20 m has a moment of inertia I = 265 kg · m2, What is the new angular speed of the merry-go-round
The coefficients of friction between a block of mass 0.5 kg and a surface are ?s = 0.75, What is the magnitude of the frictional force (in newtons) on the block if the block is at rest
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