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1. A 2.28uF capacitor is charged to 1230V and a 7.87uF capacitor is charged to 530V. These capacitors are then disconnected from their batteries, and the positive plates are now connected to each other and the negative plates are connected to each other. What will be the potential difference across each?
2. What will be the charge on the 2.28uF capacitor?
3. What will be the charge on the 7.87uF capacitor?
An iron bar of mass, 0.73 kg, slides down a frictionless incline 0.91 m high. find the speed of the combined masses after collision
A textbook of mass 1.90kg rests on a frictionless, horizontal surface. A cord attached to the book passes over a pulley whose diameter is 0.150m, What is the tension in the part of the cord attached to the textbook
A 6.00kg ball is dropped from a height of 11.0m above one end of a uniform bar that pivots at its center. The bar has mass 7.50kg, How high will the other ball go after the collision
In order to measure the radial velocity of a star (the speed of motion towards or away from us) what type of instrument would be used and how would the data be used to derive the velocity?
The cable lifting an elevator is wrapped around a 1.0--diameter cylinder that is turned by the elevator's motor. The elevator is moving upward at a speed of 2.3 . It then slows to a stop, while the cylinder turns one complete revolution.
Two protons are located on the x-axis at 1.0m and on the y-axis at 1.5m. Determine the electric potential energy of a third proton located at the origin
A wire of length, L, and mass density, ?, is positioned parallel to and directly over another much longer wire. what is the seperation between the two wires
A block starts with a certain speed at the top of a frictionless inclined plane with an unknown angle to the horizontal. To calculate the time required for the block to reach the bottom of the plane.
Three forces are applied to an object. Force F1 has a magnitude of 20.3 newtons (20.3 N) and is directed 30.0° to the left of the +y axis.
Two charged spheres are 8.45 cm apart. They are moved and the force on each of them is found to have been tripled. How far apart are they now.
In the figure, two ideal solenoids link the circuit, with the solenoids' magnetic fields directed as shown. Use Kirchoff's rules to find the current in each resistor
A 2.4 kg mass is placed on top of a vertical spring. the spring is compressed 4.2 cm. What is the energy stored in the spring
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