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A charge Q is uniformly distributed throughout a nonconducting sphere of Radius R.a) What is the magnitude of the electric field at a distance of R/2 from the center of the sphere?b) What is the magnitude of the electric field at a distance of 2R from the center of the sphere?
When a resistor is connected across the terminals of an ac generator (104 V) that has a fixed frequency, there is a current of 0.545 A in the resistor. determine the impedance of the series combination
a catcher catches a 145 g baseball traveling horizontally at 36.0 m/s. How large an impulse does the ball give to the catcher, what average force did the ball exert on the catcher
Bob walks up to the crate and begins pushing with 200N of force. What is the magnitude of the frictional force now
Four charges are placed in a three-dimensional space. The charges have magnitudes 2 nC, -4 nC, 1 nC, and -9 nC. If a Gaussian surface encloses all the charges, what will be the electric flux through that surface?
A jet airplane flying from Darwin, Australia, has an air speed of 250 m/s in a direction 5.0° south of west. What is the magnitude of the velocity relative to earth
Then find the force between them as a function of distance h. describe why the sign of the force does (or does not) make sense to you.
The two identical pucks with masses of 300.0 g, in the figure rotate together on a frictionless, horizontal table. What is the tension in the second string
A shear force of 4 x105 N is applied to an aluminum bar of length L = 28 cm, width w = 5 cm, and height h = 1.2 cm, What is the shear deformation
question1a 25mw jet engine produces a sound level of 120db threshold of pain at a distance of 100m from the engine
A block of wood weighing 2N slides down a 37^0 inclined plane starting from rest and reaching 2 m/s. What is the kinetic coefficient of friction between the block and slide
The two items attract one another with a force of strength 0.6 N when they are 1 cm apart. If they have equal but opposite charges, a) what is the magnitude of the charge
While walking around your apartment in socks you shuffle your feet across the floor and realize that you've accumulated a positive charge of +9 nC (9 x 10^-9 C)
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