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A uniform electric field with a magnitude of 5650 N/C points in the positive x direction.
Find the change in electric potential energy when a +15.5-"mu"C charge is moved 4.50 cm in the positive y direction.
Two hikers begin on opposite sides of a circular lake and walk around the lake in the same direction. How far does the faster hiker walk before catching up to the slower one
An astronomical telescope is designed with an overall magnification of 80x. The objective has a focal length of 98.0 cm. How far should the eyepiece be from the objective
a 250 kg merry-go-round is a solid disc with a radius of 1m when a 40 kg child sits at the center the angular speed is 6 rev/s
When a rifle is fired, the person firing the rifle absorbs the recoil. Consider an Olympic biathlete firing a competition rifle. What is the magnitude of the force felt by the athlete
Two identical conducting spheres each having a radius of 0.500 cm are connected by a light 1.50 m long conducting wire. Determine the tension in the wire
The rms electric field of an electromagnetic wave increases from 286 to 858 N/C.find the wave intensities for the two values of the electric field.
In each cycle of its operation, a refrigerator removes 8 J of heat from the inside of the refrigerator and releases 22 J of heat into the room. How much work per cycle is necessary to operate this refrigerator.
The plates of a parallel place capacitor have an area of 5 cm^2 each, and the capacitor has a capacitance of 3.5 pF. What is the separation of the plates and its final charge density
The coldest and hottest temperatures ever recorded in Switzerland are -43.2 F (231 K) and 106.7 F(315K) respectively. What is the speed of sound in air at each temperature
find static friction between the chair and the floor.
Find out that the value of the gravitational field strength
X rays diffract from a crystal in which the spacing between atomic planes is 0.179nm. What is the angle of the first-order diffraction
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