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An electron, mass = 9.11 X 10-31kg, is moving in a circular orbit of radius 5 X 10-11m by a frequency of 7.5 X 1015 revolutions per second.
1. What is the speed of the electron?
2. What is the magnitude of the net force acting on the electron?
When a hammer strikes a nail, it is compressed along its length. Suppose that a steel nail 10.00 cm long and 3.00 mm in diameter is compressed an average of 65.0 µm by a 0.415 kg hammer during a 1.20 ms collision
Suppose you pour water into a container until it reaches a depth of16 {\rm cm}. What is the pressure at the bottom of the container
Calculate the change in potential energy of a 92.8 kg man when he takes an elevator from the first floor to 29th floor, if the distance between floors is 4.41 m.
Get the potential energy of a current-carrying loop in a B field that has a uniform over the face area of the loop. The work an external agent would have to perform to change the orientation of a loop in the B field, originally at rest with the loop ..
A superwoman is travelling in a rocketcroft at a speed of 1.5 x10^ 8 m/s is holding a coffee cup that is 20 cm tall and 8 cm in diameter, What is the width of the cup in the direction of the travel
Dynamics of Toboggan and Block on Ice, A 4.0 kg toboggan rests on a frictionless icy surface, and a 2.0 kg block rests on top of the toboggan. The coefficient of static friction µs between the block and the surface of the toboggan is 0.58
A box of textbooks of mass 25.3kg rests on a loading ramp that makes an angle a with the horizontal. find the acceleration once the box has begun to move
a small object a electrically charged creates an electric field. at a point p located 0.250 directly north of a the
A wire of radius R carries a current with density: J =C(R-r). Find the total current carried by the wire
A speaker at the front of a room and an identical speaker atthe rear of the room are being driven at 421 Hz by the same sound source. How many beats does the student hear per second
A supertanker filled with oil has a total mass of 6.1 x 108 kg. how far below the water level is the bottom of the tanker
A) What is the Boiling Point (Temperature) of Water?
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