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A parallel plate capacitor has a capacitance of 2 µF when the plates are seperated by a vacuum. The plates are 10^-3 m apart, and they are connected to a battery that maintains 50-V potential difference between them.
(a) What is the electric charge on the plates?
(b) What is the elctric charge between the plates?
(c) If a slab with dielectric constant equal to 5 is inserted between the plates, what is the new charge?
(d) What is the electric field with the slab in place?
A steel rod has a length of exactly 0.2cm at 30degree centigrade. what will be its length at 60degree centigarde?
The electron in a hydrogen atom is infinitely distant at zero potential energy, What is the nearest principal quantum number in this state
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A 2.85 kg object is held in place on an inclined plane that makes an angle of 40 degrees with the horizontal. Calculate the initial acceleration of the system
A child's toy consists of a piece of plastic attached to a spring. The spring is compressed against the floor a distance of 1.2 cm, and the toy is released. If the spring constant is 103 N/m, what is the magnitude of the spring force acting on the..
In adding, the snow exerts a retarding force on the sled that points opposite to the direction of motion, and has a magnitude of 57 N. Find out the acceleration of the sled and child.
You bike at 11.5 m/s directly away from your neighbor\'s trumpet sound and toward the sound of another neighbor\'s trombone, What frequency is the trombonist producing
Two loudspeakers emit sound waves along the x-axis. A listener in front of both speakers hears a maximum sound intensity, What is the phase difference between the speakers
A small, 300 {rm g} cart is moving at 1.30 {rm m/s} on an air track when it collides with a larger, 3.00 {rm kg} cart at rest. After the collision, the small cart recoils at 0.890 {rm m/s}.
Suppose I have two infinite wires, one on the y axis and one on the x axis, each charged uniformly with lamda C/m. Find an expression for the electric field E at any point in the x and y plane as a function of x and y.
A 6-kg bucket of water is being pulled straight up by a string at a constant speed. What is the tension in the rope
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