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A hockey puck moving at 33m/s slams through a wall of snow 38cm thick. It emerges moving at 19m/s . Assuming constant acceleration, find the time the puck spends in the snow. Assuming constant acceleration, find the thickness of a snow wall that would stop the puck entirely.
A small rocket is powered upward on lift-off by an engine thrust of 12,000-N. If the resulting upward acceleration is 6.40m/s^2, what is the mass of the rocket?
Light of 546 nm wavelength is incident on a cesium surface that has a work function of 1.91 eV. find the threshold wavelength
A 5.1 kg bucket of water is raised from a well by a rope. find the force exerted by the rope on the bucket.
The resultant displacement has a magnitude of 6.6m directed at the angle of 137 degrees from the positive x axis.
The average density of the planet Neptune is 1644 kg/m3. The acceleration of gravity on its surface is 11.32 m/s2. Calculate the average radius of Neptune
Alpha particles of kinetic energy 5.10 MeV are scattered at 90° by a gold foil. What is the impact parameter
A sailor strikes the side of his ship just below the waterline. He hears the echo of the sound reflected from the ocean floor directly below 1.3 s later. How deep is the ocean at this point? Suppose the speed of sound in seawater is 1560 m/s and d..
A crate is sliding down a ramp that is inclined at the angle of 33° above the horizontal. The coefficient of kinetic friction between the crate and the ramp surface is 0.479. Find the acceleration of the moving crate.
what will be the height h of the highest point reached by the skateboarder on the right side of the ramp.
A girl delivering newspapers covers her route by traveling 10.00 blocks west, 4.00 blocks north, What is her resultant displacement
During a Carnot cycle, in the first process, an ideal gas is expanded isothermally at 500 K. 1,000 J of heat enters the system, What is the magnitude of Q that leaves the system
Two blocks are travelling towards eachother. The first has a speed of 10cm/sec and the second has a speed of 60 cm/sec. compute the velocity of the first block after collision
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