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Two identical small-charged spheres are a certain distance apart, and each initially experiences an electrostatic force of magnitude Fbecause of the other. With time, charge gradually diminishes on both spheres. When each of the spheres has lost half its initial charge, the magnitude of the electrostatic force will be?
Freight trains can produce only relatively small acceleration and decelerations. How far will it travel in each case
A charge of -2.8 µC is fixed in place. From a horizontal distance of 0.0625 m, a particle of mass 4.25 x 10-3 kg, How far does the particle travel before its speed is zero
The period of the earth around the sun is 1 year and its distance is 150 million km from the sun. An asteroid in a circular orbit around the sun is at a distance 461 million km from the sun. What is the period of the asteroid’s orbit?
A person tries to heat up the bath water by adding 6.0 L of water at 70ºC to 60 L of water at 30ºC. What is the final temperature of the water mixture
question a series circuit consists of an ac source of variable frequency a 115-nbspomega resistor a 1.25-microf
Earth's atmosphere is constantly bombarded by cosmic ray protons that originate somewhere in space. What would be the electric current intercepted by the total surface area of the planet
A 5 kg ball collides head-on with a 10 kg ball, which is initially stationary. The collision is inelastic. Which statement is true?
A 216.7 kg satellite is in a circular orbit of 26,273 miles (42,300,000 m) in radius. What is the velocity (speed) of the satellite
If a conducting sphere is to be charged to a potential of6100 V, what is the smallest possible radius of the sphere such that the electric field will not surpass the dielectric strength of air?
An electron is confined in a box 1.0 x10^-9m in width. What is the uncertainty in its speed
A lead rod and a common glass rod both have the similar length when at23.5° C. The lead rod is heated to53.2° C. To what temperature should the glass rod be heated so that they are again at the similar length?
A 1250 kg cannon, which fires a 80 kg shell with a speed of 546 m/s relative to the muzzle, is set at an elevation angle of 39° above the horizontal. At what angle with the ground is the shell projected
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