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The rms speed of the molecules in 1.4g of hydrogen gas is 1700m/s.
1. What is the thermal energy of the gas?
2. What is the total translational kinetic energy of the gas molecules?
3. 500J of work are done to compress the gas while, in the same process, 1900J of heat energy are transferred from the gas to the environment. Afterward, what is the rms speed of the molecules?
a man carries a 50 kg backpack up a flight of stairs. each step is 10.0 cm high and the man climbs 150 steps. he then
What is the total negative charge, in coulombs, of all the electrons in a small 1.05g sphere of carbon? One mole of C is 12.0g, and each atom contains 6 protons and 6 electrons.
a 5.0 kg object is supported by an aluminum wire of length 2.6m and diameter 2.2mm. How much will the wire stretch
A 0.527 kg metal cylinder is placed inside the top of a plastic tube, the lower end of which is sealed off by an adjustable plunger, what is the initial acceleration of the metal cylinder
The tension in a string by a linear mass density of 0.00100 kg/m is 0.490 N. What is the frequency of a sinusoidal wave on this string by a wavelength of 0.200m?
When you are running and want to stop quickly, you must decelerate quickly. Estimate the rate of deceleration of a person running at top speed of 6 {\rm m/s} to come to rest at 2 {\rm s}
An object whose weight is 100 Ibf experiences a decrease in kinetic energy of 500 ft. Ibf and an increase in potential energy of 1600 ft. Ibf. The initial velocity and elevation of the object, each relative to surface of the earth, are 50 ft/s and 40..
A helium-neon laser (?=633 nm) illuminates a diffraction grating. What is the spacing between slits of the grating
In and 8.00 km race, one runner runs at a steady11.0 km/h and another runs at 14.0 km/h. How far from the finish line is the slower runner
Water flowing through a 2.0cm -diameter pipe can fill a 500L bathtub in 4.9min. What is the speed of the water in the pipe
A young woman on a skateboard is pulled with a rope attached to a bicycle. The velocity of the skateboarder is rv = (4.1 m s)x$ and the force exerted on her by the rope is r F = (17 N)x$ + (12 N)y$.
A woman stands among a vertical mirror, which is 0.56 m high, and a distant tree. She is 1.05 m from the mirror, and the tree is 10.0 m from the mirror. How tall is the tree if she sees its image just filling the mirror?
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