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A slab of copper of thickness b = 6.944×10-1 mm is thrust into a parallel-plate capacitor of C = 7.00×10-11 F of gap d = 5.0 mm, as shown in the figure; it is centered exactly halfway between the plates. What is the capacitance after the slab is introduced?
If a charge q = 1.00×10-6 C is maintained on the plates, what is the ratio of the stored energy before to that after the slab is inserted?
How much work is done on the slab as it is inserted?
Consider a 10-kg block resting on a frictionless plane inclined 30 o connected by a rope through a pulley to a 10-kg block hanging free. What is the direction and magnitude of the resulting acceleration of the 2-block system?
In order to fabricate a uniform wire of resistance 1.2 ?, out of m=1 g copper which has a density of 8.92×103 kg/m3, What should be the diameter of the wire
A piece of rock weighs 301 N in air and has an apparent weight of 202 N when suspended under water. What are the volume and density of the rock
A merchant in Katmandu sells you a solid gold 1 kg statue for a very reasonable price. When you get home, you wonder whether or not you got a bargain, and so you lower the statue into and container of water and measure volume. What volume of displ..
Recent measurements show that the black hole at the center of the Milky Way galaxy, which is believed to coincide with the powerful radio source Sagittarius A*, What is the maximum radius of this black hole
a thin lens of focal length 30.0 cm and is used to form an image that is twice the size of the object. Find the object position
What is formula for the acceleration a of the cart in terms of the tension T, and its mass M? make use of the two equations you found above to eliminate T to give the acceleration of the cart in terms of M, m and g. Compute the numerical value for..
If a Joe pulls a 37-kg crate at a 0.62 m/s^2 using a horizontal strap, when 250N of friction acts on it, what is the Tension in the strap
An 83 kg fullback moving east with a speed of 5.4 m/s is tackled by a 96 kg opponent running west at 3.8 m/s, find the velocity of the players immediately after the tackle
A turntable that spins at a constant 73.0 {rm rpm} takes 3.60 {rm s} to reach this angular speed after it is turned on. Find its angular acceleration (in {rm rad/s^{2}}), suppose it to be constant, and the number of degrees it turns through while ..
A meter stick balances horizontally on a knife-edge at the 50.0 cm mark. With two 5.00 g coins stacked over the 15.0 cm mark, the stick is found to balance at the 42.0cm mark. What is the mass of the meter stick
A web page designer creates an animation in which a dot on a computer screen has a position of r? =[ 4.2cm +( 2.3cm/s2 )t2]i^+( 4.5cm/s )tj^
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