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A small metal bead, labeled A, has a charge of 29nC . It is touched to metal bead B, initially neutral, so that the two beads share the 29nC charge, but not necessarily equally. When the two beads are then placed 5.0 cm apart, the force between them is 5.4×10?4N . Assume that A has a greater charge.
What is the charge qA and qB on the beads?
Find out the frequency of the fourth harmonic if the string is fixed at one end and free at other. (That is, if the free end is attached to a long string of negligible mass.)
Determine the highest speed the stone can attain without breaking the string.
An x-ray tube accelerates electrons from rest at 5.0×10 14th m/s(squared) power through a distance of 20cm . (Such high accelerations are possible because electrons are extremely light.) Find the electrons'velocity after this acceleration. Find th..
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When a 4.0 µF capacitor is connected to a generator whose rms output is 34 V, the current in the circuit is observed to be 0.40 A
An ideal spring of negligible mass is 13.00 long when nothing is attached to it. When you hang a 3.00- weight from it, you measure its length to be 14.50 .If you wanted to store 10.0 of potential energy in this spring, what would be its total leng..
At a distance r away from a point charge q the electric potential V = 500.0 V and the electric field has a magnitude of 220.0 N/C
a baseball pitcher throws a fastball across home plate. the ball crosses the plate, calculate the speed of a baseball that takes .010 s to cross home plate, .30 m from front to back
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If water at 15°C is flowing through a 3cm diameter pipe with a velocity of 50 cm-1, calculate the Reynolds number. Is the flow turbulent or laminar?
A butterfly moves with a speed of v = 12.0 m/s east of North. The y-component of its velocity is 8.00 m/s. The angle between the direction of its motion and the x-axis.
An object, at the top of a very tall building, is released from rest and falls freely due to gravity. Neglect air resistance and calculate the distance covered by the object between times t1 = 5.57 s and t2 = 7.59 s after it is released.
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