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A charge of -4.04 μC is fixed in place. From a horizontaldistance of 0.0462 m, a particle of mass 8.45 x10-3 kg and charge -8.38 μC is fired with aninitial speed of 86.0 m/s directly toward the fixed charge. What is the distance of closest approach?
A hollow, conducting spherical shell, of radius 3.50 cm, has charge ?9.14×10?5 C. What is the strength of the electric field 2.50 m from the center of the sphere, What is the direction of the field
An early model of the atom, proposed by Rutherford after his discovery of the atomic nucleus, had a positive point charge, What is the electric field at the surface of the atom
The surfer in the photo is catching a wave. Suppose she starts at the top of the wave with a speed of 1.50 m/s, how much work is done by the (non-conservative) force of the wave
At t = 0, an automobile traveling north begins to make a turn. It follows one-quarter of the arc of a circle of radius 10.8 m until, Find the change in its velocity during the turn
An 80 kg man stands in an elevator. What force does the floor of the elevator exert on the man
A compound microscope has a barrel whose length is 16.3 cm and an eyepiece whose focal length is 1.3 cm. What focal length must the objective have so the angular magnification of the microscope is -250
Using a fast-pulsed laser and electronic timing circuitry, you find that light travels a distance of 2.55m within a plastic rod in a time interval of 10.9ns. What is the refractive index of the plastic
Discover minimum thickness of glass
A converging lens of focal length 7.550cm is 20.5cm to the left of a diverging lens of focal length -6.50cm, find the location of the coins final image
Density-Gravity Problem: a) Planet Vulcan has twice the mass of Earth and the same radius. What are its volume, density and surface gravity compared to Earth?
A radio controlled car increases its kinetic energy from 4J to 12J over the distance of 2 m. What was the average net force on the car during this interval.
A tuning fork vibrating at 513 Hz falls from rest and accelerates at 9.80 m/s2. How far below the point of release is the tuning fork
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