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A) A 20 uF capacitor is charged by connecting it to a 5000 V source. Once the capacitor is charged, how much charge is there on the capacitor?
B) Once the capacitor is charged, how much energy is stored in the capacitor?
C) Assume the capacitor is a parallel-plate capacitor with vacuum between its two plates. An electron is released from the negatively charged plate and flies toward the positive plate. How fast would the electron be traveling when it reaches the positive plate?
D) Once the capacitor is charged, the voltage source is first disconnected, and then the two terminals of the capacitor are connected by a copper wire so that the capacitor is rapidly discharged, releasing all its stored energy. If it took 10 micro-seconds for the capacitor to discharge completely, what was the average power dissipation during these 10 micro-seconds?
A high-voltage transmission line is made of bare wire; it is not insulated. Assume that the wire is 100 km long, has a resistance of 7.0 Ω, and carries 200 A.
What is the acceleration of the truck. If it starts 4.50 m from the lower edge of the roof, how fast would the toolbox be moving just as it reaches the edge of the roof if the kinetic friction force on it is 18.0 N.
An ideal which and pulley system is used to haul a box of books (m=50kg) up a ramp as shown in Figure 2. The ramp makes an angle of 20degree with respect to the horizontal. What is the value of the tension in the winch rope
Michael Phelps won a gold medal at the 2008 Beijiing olympics by swimming the 200 meter medley in 1:54:80. On an off-day Mike swims the medley in 1:58:32. What is the speed in mph? (Give the ans. to two decimal places)
Outline what you know about Plasmonics and what you know about Raman spectroscopy and surface enhanced Raman spectroscopy
A block of mass m = 4.43 kg is attached to a spring which is resting on a horizontal frictionless table. What is the maximum speed of the block
to focus a camera on objects at different distances the converging lens is moved toward or away from the film so a
Two skaters, one with mass of 58 kg and the other with mass 41 kg, stand on an ice rink holding a pole of length 9.5m and negligible mass. Starting from the ends of the pole, the skaters pull them selves along the pole until they meet. How far doe..
An airplane is flying with a velocity of 240 m/s at an angle of 30.0 degrees with the horizontal, What is the angle theta
An electric dipole lies on the x-axis, consisting of a -2.7nC charge at x = -11cm and a +2.7nCcharge at x = 11cm. Find the magnitude of the electric field
Suppose that each cubic centimeter of water has a mass of exactly 1gram, calculate the mass of 1.96 cubic meter of water in kilogram
Water has a mass per mole of 18.0 g/mol, and each water molecule(H2O) has 10 electrons. How many electrons arethere in 3 liters of water?(A liter is 1.00 multiplied by 10-3 m3) What is the net charge of all these electrons?
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