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I have an ideal, air-filed, parallel plate capacitor that has a charge of magnitude 25 muC when the voltage across et is 4.0 V.
(a) What is the value of the capacitance?
(b) Suppose that I double the voltage. What is the capacitance now?
(C) Starting with the original voltage, I now insert a dielectric that completely fills the space between the parallel plate. The dielectric constant is 3.0. What is the capacitance now?
A 2.6 kilogram block slides with a speed of 1.1 m/s on a frictionless, horizontal surface until it encounters a spring. Determine what initial speed should the block have if it is to compress the spring by 1.5 cm
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A solid block of mass m2 = 0.5 , at rest on a horizontal frictionless surface, is linked to a relaxed spring (with spring constant k = 150 whose other end is fixed. Another solid block of mass m1 = 2.4 and speed v1 = 2.2 collides with the 0.50 blo..
An electron starts from rest 5.00 cm from the center of a uniformly charged sphere of radius 4.00 cm. If the sphere carries a total charge of 1.00 x10-9 C, how fast would the electron be moving when it reaches the surface of the sphere.
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A 32-g ice cube at its melting point of 273 K is dropped into a huge, insulated container of liquid nitrogen. Suppose the nitrogen is at its boiling point of 77K and has a latent heat of vaporization of 200KJ/Kg. What is the entropy change of (a) liq..
A machine shop grinding wheel accelerates from rest with a constant angular acceleration of 2.8rad/s2 for 7.6s, Find the total number of revolutions turned
A 42.0-kg boy, riding a 2.90-kg skateboard at a velocity of 5.40m/s across a level sidewalk, jumps forward to leap over a wall. Just after leaving contact with the board, the boy's velocity relative to the sidewalk is 6.00 m/s, 7.20° above the horizo..
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