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1) Two identical capacitors are connected
(a) in series with a resistor and a battery and
(b) in parallel first and then in series with the same resistor and battery. Find the ratio of the time constants to charge up the capacitors between circuits (a) and (b).
2) Two capacitors (C1=1.00 ?F and C2=2.00 ?F) are charged with Q1=3.00 ?C on the positive plate of capacitor 1 and Q2=3.00 ?C on the positive plate of capacitor 2. Now if the positive plates are connected with each other and negative plates are connected with each other, what is
(a) the final potential difference across each capacitor and
(b) the total charge on the positive plate of capacitor 1?
3) A copper cable hung on two power poles that are 121 m apart carries a current of 211 A. If the potential difference between the two ends of the cable is 0.400 V, what is the weight of the cable? The resistivity and density of copper are 1.72× 10?8 ?m and 8.92× 103 kg/m3, respectively.
batted straight back to Lonnie with a return speed of 60 m/s. If the bat is in contact with the ball for .050 s, illustrate what is the impulse experienced by the ball.
What are the final temperatures of water and the aluminum.
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A typical Major League fastball is thrown at about 99 mph and with a spin rate of 103 rpm. If the distance between the pitcher's point of release and the catcher's glove is exactly 65.5 ft, how many full turns does the ball make between release and c..
A soccer player 'heads' the size 5 ball deflecting it by 46.0°, and keeps its speed of 15.90 m/s constant. A size 5 ball has a mass of approximately 0.421 kg. What is the magnitude of the impulse which the player must impart to the ball.
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When they release their arms, Al moves off in one direction at a speed of 0.689 m/s, while Jo moves off in the opposite direction at a speed of 1.10 m/s. Assuming that friction is negligible, find out Al's mas
Two charged dust particles exert a force of 4.30×10-2 N on each other. What would be the force if they are moved so they are only one-sixth as far apart.
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