Probability that we do not draw an ace
Suppose we draw k cards out of a deck. What is the probability that we do not draw an ace? Is the answer larger or smaller than (3/4)^k?
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Calculate the electric field at the center of a square 53.0 cm on a side, if one corner is occupied by a +48.0 µC charge and the other three are occupied by -22.0 µC charges. (Assume the center of the square is at the origin and the po
An electric current of 5A passing through a resistor has a measured voltage of 6V across the resistor. The resistor is cylindrical with a diameter of 2.5 cm and a length of 15cm .
The charging current must be limited to 2.0 Amps by placing a resistor in series with the 15 volt source. What resistance will achieve the desired current?
If the density of air is 1.2 kg/m3 at the inlet and 1.05 kg/m3 at the exit, determine the percent increase in the velocity of air as it flows through the dryer.
An electron with speed v0 = 15.0 × 106 m/s is traveling parallel to a uniform electric field of magnitude E = 10.4 × 103 N/C.How much time will elapse before it returns to its starting point?
A 0.6-m-diameter hemispherical plexiglass "bubble" is to be used as a special window on the side of an above-ground swimming pool. The window is to be bolted onto the vertical wall of the pool and faces outward, covering a 0.6-m-diameter opening i
Taking the average thermal efficiency to be 36.2 percent, determine the amount of thermal energy rejected by the coal fired power plants in the UNited States that year.
A sperical conductor has a total charge +Q, and radius R. 1) what is the shape of equipotential surfaces outside the conductor? 2) What is the shape of the equipotential surfaces inside the conductor?
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How does a country gain "power" within the international system? Provide two specific examples to support your response.
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