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Question: Consider the interaction between an electron and a proton separated by some distance r. Compare the electrostatic force to the force of Universal Gravitation. Calculate the ratio of Fg to Fe.
Two spherical objects with a mass of 5.35 kg each are placed at a distance of 2.35 m apart. How many electrons need to leave each object
An astronaut is being tested in a centrifuge. The centrifuge has a radius of 6.59 m and, in starting, what is the magnitude of the astronaut's linear speed
A cart of mass m1 = 0.500 kg moves with a velocity of 0.900 m/s to the right on a frictionless track. It collides with another cart of mass m2 = 0.500 kg at rest. Car m1 stops and m2 moves in the direction that m1 was traveling. What is the magnitude..
A tank of water 3.0 m deep sits on a table 1m tall. A hole is located 2m from the bottom of the tank. Water flows out of hole and strikes the ground. Where does it strike the ground? Suppose incompressible, non viscous flow.
when the tips of the rotating propeller of an airplane have a linear speed greater than the speed of sound the
q1. a student stands several meters in front of a smooth reflecting wall holding a board on which a wire is fixed at
For a Nd:YAG laser there are four pump levels located at 1.00 eV, 1.24 eV, 2.40 eV, and 2.54 eV. What is shortest possible pump wavelength (in nanometers) that could be used to populate any of the excited energy levels
An elevator can lift a 185 N aircraft a distance of 36 meters in 11 s. What is the power output of the elevator
A thin uniform rod (length = 1.09 m, mass = 3.09 kg) is pivoted about a horizontal frictionless pin through one of its ends. What is the angular acceleration of the rod at the instant it is released
If the frequency is variable and the length of the closed (at both ends) tube is fixed at 45 cm, sketch the plastic tube showing the position of the nodes and anti-nodes for the three lowest resonant.
At what distance along the central axis of a uniformly chargedplastic disk of radius R = 1.40 m is themagnitude of the electric field equal to 1/9 times the magnitude ofthe field at the center of the surface of the disk?
The spectra you observe through the diffractiohn grating for these atomic vapor lamps are discrete lines of color. Recall what you observed for the spectral pattern for "white light" from a light bulb. Explain what is happening. ie. the difference..
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