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Calculate the thermal de Broglie wavelengths for helium-4 (boson) and helium-3 (fermion) gases at T = 5K. Find the particle densities in these two cases for which quantum statistics must be used in considering properties of interest. Compare the pressures of the two gases at these calculated particle densities for equal volume containers at 2K.
In order to fabricate a uniform wire of resistance 2.7 ?, out of m=1 g copper which has a density of 8.92×103 kg/m3, What should be the length of the wire
An average force of 201 N is exerted to draw the string back 1.3 m. unless otherwise directed, imagine that air resistance is negligible. Illustrate energy bar graphs to solve the difficulty .
predict how to changing the variables may effect the distance traveled or the speed of the race car.
How much would an 80.0kg person weigh) on mars where an acceleration of gravity is 3.93m/s^2 and (b) on earth's moon where the acceleration of gravity is 1.63m/s^2.
A projectile is fired straight upward at 141 m/a. how fast is it moving at the instant it reaches the top of its trajectory? Assume in its place that it was fired upward at 45. What would be its speed at the top of its trajectory.
A bus is traveling up a hill at a speed of 34m/s. The hill is 23 degrees relative to horizontal and the coefficient of static friction between the bus's tires and the road is 0.6. What is the car's minimum breaking distance?
a cross-sectional area of wire so as to produce a steady current of 5.00 mA, How many electrons passed this cross-sectional area in that amount of time
Two objects (39.0 and 23.0 kg) are connected by a massless string that passes over a massless, frictionless pulley, find the acceleration of the objects
Explain in your own words the meaning of acute and chronic exposure, deterministic and stochastic effects from radiation. Give examples
A 140 kg piano is being lifted at a steady speed from ground level straight up to an apartment 16.0 m above the ground. The crane that is doing the lifting produces a steady power of 400W. Explain how much time does it take to lift the piano?
If the charge of the point charge in the figure were -2Q (instead of +Q), by what factor would the magnitude of the force on the point charge due to the dipole change.
A ball is thrown from the top of a building upward at an angle of 39degrees to the horizontal and with an initial speed of 24m/s. The ball is thrown at a height of 57 m above the ground and hits the ground 98.55 m from the base of the building. Wh..
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