physics HW #1

# physics HW #1 - charges has a magnitude of 26 N and points...

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Physics 112 HW #1 April 2, 2010 1. Four identical metallic objects carry the following charges: +3.4 µC, +8.6 µC, -4.6 µC, and -8.8 µC. The objects are brought simultaneously into contact, so that each touches the others. Then they are separated. (a) What is the final charge on each object? µC (b) How many electrons (or protons) make up the final charge on each object? electrons 2. Two point charges are fixed on the y axis: a negative point charge q 1 = -26 µC at y 1 = +0.19 m and a positive point charge q 2 at y 2 = +0.32 m. A third point charge q = +8.3 µC is fixed at the origin. The net electrostatic force exerted on the charge q

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Unformatted text preview: charges has a magnitude of 26 N and points in the + y direction. Determine the magnitude of q 2 . C 3. The drawing shows three point charges fixed in place. The charge at the coordinate origin has a value of q 1 = +7.50 µC; the other two charges have identical magnitudes, but opposite signs: q 2 = -4.95 µC and q 3 = +4.95 µC. Physics 112 HW #1 April 2, 2010 (a) Determine the net force (magnitude and direction) exerted on q 1 by the other two charges. magnitude N direction (b) If q 1 had a mass of 1.59 g and it were free to move, what would be its acceleration? magnitude m/s 2 direction...
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