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An electron is suspended at a distance of 1.48 cm above a uniform line of charge. What is the linear charge density of the line of charge? Ignore end effects.
A small sphere of charge q1 = 0.872 µC hangs from the end of a spring. When another small sphere of charge q2 = -0.642 µC is held beneath the first sphere, the spring stretches by d = 3.57 cm from its original length.
Why three points? Would two have been enough? Describe what changes would occur, if any, in the electric field pattern and in the equipotential curve you measured if the magnitudes of your three charges were increased, all by the same factor.
Select all that apply. Which is the following statements is true?
With the rod initially horizontal, a 44 gm wad of wet putty drops onto one of the balls with a speed of 3.7 m/sec and sticks to it.
Two ice-skaters, whose masses are 45 kg and 75 kg, hold hands and rotate about a vertical axis that passes between them, Find the angular momentum of the system about it's center of mass
In the two-slit experiment, monochromatic light of wavelength 600nm passes through a pair of slits separated by 2.2E10^-5 m. what is the angle corresponding to the first bright fringe
A factory worker pushes a 28.0kg crate a distance of 4.8m along a level floor at constant velocity by pushing downward at an angle of 28 below the horizontal. How much work is done by the normal force
Suppose you walk 18 m straight East and then 26.5 m straight South. How far are you from your starting point in meters
A 2000 kg statue falls into a circular jacuzzi with a diameter of 5 m, What is the average density of the statue
An aircraft has a lift-off of 120km/h. (a) What minimum constant acceleration does the aircraft require if it is to be airborne after a takeoff run of 240m (b) How long does it take the aircraft to become airborne
A 0.360 kg mass is attached to a spring with a force constant of 25.9 N/m, Calculate the speed of the mass
The angular momentum of a flywheel having a rotational inertia of 0.100 kg·m2 about its central axis decreases from 3.00 to 0.400 kg·m2/s in 0.80 s. What is the average power of the flywheel
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