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Question: A charge Q is transferred from an initially uncharged plastic ball to an identical ball 11cm away. The force of attraction is then 42mN.
Part A: How many electrons were transferred from one ball to the other?
Please also explain, thank you in advance.
suppose that the magnetic field of the earth were due to a single current moving in a circle of radius 2910 km through
The density of ice is 917 kg/m^3, and the density of sea water is 1025 kg/m^3. A swimming polar bear climbs onto a piece of floating ice that has a volume of 5.2m^3. What is the weight of the heaviest bear that the ice can support without sinking com..
A generator of frequency 2500 Hzdrives a series RLC circuit with an emf amplitude of 120V. The resistance is 3.1 , the capacitance is1.60 µF, What is the current amplitude
A uniform 1.80m ladder of mass 6.30kg is leaning against a vertical wall while making an angle of 53.0%u2218 with the floor. How much work did this person do against gravity
Calculate the speed of the fetal heart wall at the instant this measurement is made.
A velocity selector has an electric field of magnitude 2330 N/C, directed vertically upward, and a horizontal magnetic field that is directed south. Charged particles, traveling east at a speed of 7.89 x 103 m/s, enter the velocity selector and are a..
Two cars, both of mass m, collide and stick together. Prior to the collision, one car had been traveling north at speed 2v, while the second was traveling at speed v at an angle phi south of east (as indicated in the figure).
The moon orbits the Earth at a distance of about 3.84 x 108 meters in a path that takes 27.3 days to complete. What is the centripetal acceleration of the moon
What is the linear charge density together the arc.
The perspective provided by Multiple-Concept is useful here. The highest barrier that a projectile can clear is 15.60 m, while the projectile is launched at an angle of 23.0 ° above the horizontal. What is the projectile's launch speed.
after struggling to remove a refrigerator mass 100 kg. you finally apply enough force to get it moving. what is the
german physicist werner heisenberg related the uncertainity of an objects position triangle x to the uncertainity in
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