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An electron starts from rest 0.05m from the centre of a uniformly charged sphere of radius 0.03m. If the sphere carries a total charge of 1.00 X 10 minus 9 C (or 1.0 nC), how fast will the electron be moving when it reaches the surface of the sphere in m/s?
A hydrogen atom is in the ground state. It absorbs energy and makes a transition to the n = 6 excited state.find the photon wavelengths of first and second transitions
A transformer with 580 turns in its primary coil has to decrease the voltage from 6380 V to 220 V for home use
a calculate the binding energy of 23na using the table of atomic masses. express your answer in unified mass units but
A stunt man (69.3 kg) swings across a valley at the end of a 28.2 m long rope. Find the tension in the rope at the bottom of the swing
A bicycle is turned upsdie down and has one wheel spinning at 95.0 rpm. The wheel slows uniformly to a stop in 45.0 seconds. If the wheel were on the ground, what linear distance (in meters) would it travel
Two wheels can rotate freely about fixed axles through their centers. The wheels have the same mass, but one has twice the radius of the other. Compare the magnitudes of the two forces
the plates of a 3.3 nf parallel-plate capacitor are each 0.27m2 in area.part a how far apart are the plates if theres
A collie drags its bed box across a floor by applying a horizontal force of 3.1 N. find the increase in thermal energy of the bed and floor
You are standing on a sheet of ice that covers the football stadium parking lot in Buffalo; there is negligible friction between your feet and the ice. what is your speed after the collision
An aircraft?starts at rest and is accelerated?at 13.2?m/s2 for 8.5 seconds, at which time the aircraft launches. What is the distance traveled from the starting point
A lit firecracker is shot straight up at 50 m/s. How high is it above ground level 5 s later when it explodes? How fast is it moving when it blows up? How far has it fallen from its maximum height?
Your car has stalled and you need to push it. You notice as the car gets going that you need less and less force to keep it going. How much work does the force of gravity do on the ball
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