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How does the thermal velocity scale with the size of the molecule diffusing? Use the ideal gas approach to find the thermal velocity and determine the scaling law based on the resulting equation.
A mass is suspended from the ceiling of a train car by a 45.4cm long piece of string. A passenger notices that the mass is deflected 14.7cm backward as the train accelerates forward. What is the train's acceleration?
a line of charge is formed to make a 5 cm x 5 cm square with a line charge of lamda and lies in the xy-plane. find the
A crane lifts a 2000kg load 40 meters. what will be the work done by the load? If it takes 8 seconds to do this work what is the power output for the crane
A physics student comes up with the following scheme to gauge the building height a timing mechanism is set up to gauge the time it takes for a lead weight dropped from the top of the building to fall the last 15m before hitting the ground. Observati..
A small body of mass 0.13 kg is undergoing simple harmonic motion of amplitude 9.0 cm and period 0.10 s. What is the maximum value of the force acting on it? If the oscillations are produced by a spring, what is the spring constant?
Two charged particles, Q1 = +4.90 nC and Q2 = -2.80 nC, are separated by 36.0 cm. What is the electrical potential energy of the pair
Now adapt the ideas of the energy and entropy of mixing to gasses in different cylinder. The temperature is fixed (there is a thermal reservoir so that all changes are done isothermally). A system starts with n(He)=10 moles of helium in a cylinder..
A warehouse worker pushes a crate along the floor, by a force of 7.0{\rm N} that points downward at an angle of 45^\circ below the horizontal.Find the horizontal component of the push. Find the vertical component of the push.
How many excess electrons must be distributed uniformly within the volume of an isolated plastic sphere 29.0cm in diameter to produce an electric field of 1500N/C just outside the surface of the sphere
A 13cm -diameter cylinder contains argon gas at 10 atm pressure and a temperature of 50oC. A piston can slide in and out of the cylinder. What is the final temperature of the cylinder
in a proton accelerator a moving proton hits a solid target and stops. as a result an electron-positron pair is created
Two charges, qA and qB, are divided by a distance, d, and exert a force, F, on each other. Analyze Coulomb's law and answer the following questions.
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