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1. In a charge-free region, Ex = αx , and Ey = βy. Find Ez .
2. If n capacitors are connected in series, what is the effective capacitance?
3. If n capacitors are connected in parallel, what is the effective capaci- tance?
4. Why is the charge on each capacitor the same when capacitors are connected in series?
5. Is the charge on each capacitor the same when they are connected in parallel?
A weightlifter curls a 35kg bar, raising it each time a distance of 0.65m. How many times must he repeat this exercise to burn off the energy in one slice of pizza
Red blood cells often can be charged. Two red blood cells are separated by 1.47 m, what is the sign and magnitude of the second charge
An LC circuit has a 9.00 m/H inductor. The current has its maximum value of 0.550 A at t= 0s . A short time later the capacitor reaches its maximum potential difference of 62.0 V. What is the value of the capacitance?
A future space station in orbit about the earth is being powered by an electromagnetic bean from the earth. The beam has a cross-sectional area of 135m2 and transmits and average power of 1.20*104W. What is the intensity of this beam, the maximum val..
a cylindrical aluminum pipe of length 1.57 m has an inner radius of 2.20 x 10-3 m and an outer radius of 2.80 x 10-3 m.
A satellite, moving in an elliptical orbit, is 357 km above Earth's surface at its farthestpoint and 184 km above at itsclosest point. Calculate the semimajor axis of the orbit. Calculate the eccentricity of the orbit.
A major-league pitcher can throw a baseball in excess of 48.7m/s. If a ball is thrown horizontally at this speed, how much will it drop by time it reaches the catcher who is 15 m away from the point of free.
An alpha particle (m= 6.6 x 10-27 kilogram) is accelerated by a potential difference of 5000 Volt and the enters a region with a vertical (out the page) .75 T magnetic field, Determine the radius of the circular motion
two small plastic balls hang from the threads of negligible mass. each ball has a mass of 0.14 g and a charge of
a sealed evacuated 1.11 liter container initially contains 0.32 liter of liquid helium. as the contents of the
The star Sirius is a distance of 8 light-years from the earth. If Sirius abruptly stopped shining, how much longer would it be seen on earth?
Charge 32nC is uniformly distributed along a thin, flexible rod of length 18cm. The rod is then bent into the semicircle shown in the figure (Figure 1) . Evaluate the electric field strength at the dot.
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