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The tip of a tuning fork goes through 540 complete vibrations in 0.300 s. Find the angular frequency and the period of the motion.
angular frequency rad/s
period s
Find the expression for the electric field, E? , of the ring as the point P becomes very far from the ring (x >> R) in terms of the radius R
The drawing shows a person looking at a building on top of which an antenna is mounted. How tall is the antenna
A glass rod is initially neutral. It is then rubbed against a silk cloth. Afterwards, the rod has a charge of +5.0 C, How many electrons did the glass rod lose or gain
The United States uses 1.12×1019J of electrical energy per year. How many kilograms of uranium would have to be mined per year to provide that much 235U
A closed loop of wire is given the shape of a circle with a radius of 0.483 m. find the magnitude of the average induced emf in the wire during this time
When a current flows in an aluminum wire of diameter 2.45 mm, the drift speed of the conduction electrons is 1.05 × 10-4 m/s. What is the electron current in the wire
A superball with a mass m = 61:6 g is dropped from a height h = 1.76m. What is the momentum change of the ball during its collision with the floor
A proton is released from rest inside a region of constant, uniform electric field E1 pointing due North. 27.3 seconds after it is released, What is the ratio of the magnitude of E2 to the magnitude of E1
A converging lens of focal length 0.25 m forms a virtual image of an object, What is the distance between the object and the lens
A rope is wrapped around a wheel of radius R=2.0 meters. The wheel is mounted with frictionless bearings on an axle through its center. What is the moment of inertia of the wheel
In the quark model of fundamental particles, a proton is composed of three quarks: two "up" quarks, each having charge +2e/3, calculate the potential energy of the subsystem of two "up" quarks
erson decides to use an old pair of eyeglasses to make someoptical instruments. What is the maximum angular magnification he can produce in a telescope
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