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Two identical pellet guns are fired simultaneously from the edge of a cliff. These guns impart an initial speed of 32.0 m/s to each pellet. Gun A is fired straight upward, with the pellet going up and then falling back down, eventually hitting the ground beneath the cliff. Gun B is fired straight downward. In the absence of air resistance, how long after pellet B hits the ground does pellet A hit the ground?
How various g's of acceleration does the astronaut experience when the device is rotating at top speed? Each 9.80 m/s^2 of acceleration is 1 g.
An electron close to a large, flat sheet of charge is repelled from the sheet with a 2.2pN force. Find the surface charge density on the sheet
Consider three identical metal spheres, A, B, and C. Sphere A carries a charge of +3q. Sphere B carries a charge of -q. Sphere C carries no net charge.
The plates of a parallel-plate capacitor have a separation of 2.00mm , and each has an area of 14.2cm^2 . Each plate carries a charge of magnitude 5.70×10?8C . The plates are in vacuum.
You have carefully prepared the wave function of an electron to be in the first energy eigenstate of an infinite potential well spanning a length a. Now you decide to release the electron from the prison by turning off the infinite potential barri..
A spacecraft consists of a 32500 kg engine and a 12600 kg nosecone. How fast is the nosecone moving
What must the charge (sign and magnitude) of a 1.49-g particle be for it to remain stationary when placed in a downward-directed electric field of magnitude 660N/C?
A commuter train blows its horn as it passes a passenger platform at a constant speed of 60.0 m/s. What is the frequency observed by a person on the platform as the train approaches
The model airplane in Figure 5.7 is flying at a speed of 14.4 m/s on a horizontal circle of radius 17.2 m. The mass of the plane is 1.19 kg. What is the net work done on the plane
One particle has a mass of 4.00 10-3 kg and a charge of +9 µC. A second particle has a mass of 7.00 10-3 kg and the same charge. Find the initial separation between the particles
Two charges, -15 and +3.7 µC, are fixed in place and separated by 2.8 m. (a) At what spot along a line through the charges is the net electric field zero? Locate this spot relative to the positive charge. (Hint: The spot does not necessarily lie b..
A 63 resistor is connected in parallel with a 115 resistor. This parallel group is connected in series with a 19 resistor. The total combination is connected across a 15 V battery.
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