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Two identical conducting spheres, fixed in place, attract each other with a force of 0.094 N when their center to center separation is 60.00 cm. The spheres are then connected by a thin conducting wire. When the wire is removed, the spheres have a net positive charge and repel each other with an electrostatic force of 0.034 N. What was the initial negative charge on one of the spheres, and what was the initial positive charge on the other?(Hint: Use charge conservation and solve for one of the initial charges. You will end up with a quadratic equation. The solutions give you the positive and negative charges.)
How does the magnitude of electrical force between a pair of charged objects change while the objects are moved twice as far apart? Three times as far apart.
The third floor of a house is 7.00 m above street level. How much work is necessary to move a 143kg refrigerator to the third floor.
A radar antenna is tracking a satellite orbiting the earth. At a certain time,the radar screen shows the satellite to be 162 km away.The radar antenna is pointing upward at the angle of 62.3 degrees from the ground.find the x and y components(in k..
What type of car was involved in the hit and run
A 40-g bullet leaves the muzzle of a gun at a speed of 300 m/s. If the barrel of the gun is 12 cm long, what is the force acting on the bullet while it is in the barrel.
Write down the expression for net torque
What minimum force must be applied to the crate perpendicular to the incline to prevent crate from sliding down the incline.
A certain type of laser emits light that has a frequency of 5.2 x 10^14 Hz. The light, however, occurs as a series of short pulses, each lasting for a time of 2.7 x 10-11 s. How many wavelengths are there in one pulse.
Coherent light with wavelength 592 nm passes through two very narrow slits, and interference pattern is observed on the screen a distance of 3.00 {rm m} from the slits. The first-order bright fringe is the distance of 4.84 {rm mm} from the center o..
The small spherical planet called "Glob" has a mass of 6.54×10^18 kg and a radius of 6.29×10^4 m. An astronaut on surface of Glob throws a rock straight up. The rock reaches a maximum height of 2.00×103 m, above the surface of planet, before it falls..
Compare these two ratings by determining the ratio of energy.
An infinitely long line of charge has a linear charge density of 8.00×10-12 C/m. A proton is at distance 16-cm from the line and is moving directly toward the line with speed 1200 m/s.
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