Dr. Hoselton & Mr. Price
Reference Guide & Formula Sheet for Physics
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Components of a Vector if V = 34 m/sec 48
Vi = 34 m/sec(cos 48); and VJ = 34 m/sec(sin 48) #4 Weight = mg g = 9.81m/sec near the surface of the Earth = 9.795 m/se
MathPhysicsWarmupThursApril1,2010 A+2.0C charge is placed along the x-axis at +0.15 meters. A -3.0 C charge is placed along the x-axis at -0.20 meters. What is the magnitude (number) and direction of the net electric field at the origin?
1. (a) The charge that passes through any cross section is the product of the current and time. Since 4.0 min = (4.0 min)(60 s/min) = 240 s, q = it = (5.0 A)(240 s) = 1.2 103 C. (b) The number of electrons N is given by q = Ne, where e is the magnitude of
1. Charge flows until the potential difference across the capacitor is the same as the potential difference across the battery. The charge on the capacitor is then q = CV, and this is the same as the total charge that has passed through the battery. Thus,