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The rms speed of the molecules in 1.9 g of hydrogen gas is 1800 m/s.a) What is the total translational kinetic energy of the gas molecules? (kJ)b) What is the thermal energy of the gas? (kJ)c) 500 J of work are done to compress the gas while, in the same process, 2000 J of heat energy are transferred from the gas to the environment. Afterward, what is the rms speed of the molecules? (m/s)
A sample of an unknown material appears to weight 300N in air and200N when immersed in alcohol of specific gravity 0.700. What are(a) the volume and (b) the density of the material?
In a classic carnival ride, patrons stand against the wall in a cylindrically shaped room. What is the minimum coefficient of friction needed between the wall and the person
A 10-kg block starts from rest on an incline. After 1 second the block travels at 12 m/s 1 meter down the incline. What is the theta, the angle of the incline
Two workers are trying to move a heavy crate. One pushes on the crate with a force , which has a magnitude of 444 newtons (N) and is directed due west.
An oscillator with a mass of 430 g and a period of 0.900 s has an amplitude that decreases by 1.00% during each complete oscillation. If the initial amplitude is 9.20 cm, what would be the amplitude after 44.0 oscillations? At what time will the e..
The wheels of a wagon can be approximated as the combination of a thin outer hoop, of radius rh = 0.315 m and mass 4.89 kg, what should the radius of the disk be
If a pitcher throws a 3 kg ball at 30 m/s to a batter who hits it straight back at him using 58500 N for 0.003 seconds, what is the velocity of the ball coming back to the pitcher
It takes sound waves of frequency 500 Hz 14.7 ms to make a round trip through a hollow pipe of length 7.5 m filled with helium. What is the speed of sound in helium
An object is placed in front of a converging lens in such a position that the lens (f = 11.6 cm) produces a real image located 22.9 cm from the lens.
One afternoon, a couple walks three-fourths of the way around a circular lake, the radius of which is 1.48 km. What is the magnitude of the couple's displacement
Assume a neuron in the brain carries a current of. Treating the neuron as a straight wire, what is the magnetic field it produces at a distance of 7.50.
What is the initial (horizontal) velocity of the ball.
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