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Problem: A parallel-plate air capacitor has a capacitance of 900pF. The charge on each plate is 2.8 µC.
Part A: How much work is required to double the separation?
I need help to find how much work is required to double the separation.
Two 52 g ice cubes are dropped into 230 g of water in a thermally insulated container. If the water is initially at 27°C, and the ice comes directly from a freezer at -21°C, what is the final temperature at thermal equilibrium
What is the minimum thickness of an anti-reflecting coating of index of refraction 1.4 on a glass lens of index 1.5 which would eliminate green light of wavelength 550 nm
A red laser pointer with a wavelength of 635 nm is shined on a double slit producing a diffraction pattern on a screen that is 1.75 m behind the double slit. The central maximum of the diffraction pattern has a width of 4.30 cm, and the fourth bright..
A hot wheels track has a spring loaded launcher. A 100g car is pushed into the launcher, which compresses the spring by 2cm. The cars initial velocity after launching is 3m/s.
question1a car is stopped at a traffic light. it next travels along a straight road so that itsnbspdistance from the
A certain solar collector can absorb 3000 Btu in 8.7 hr. Another panel is added, and together they collect 81000 Btu in 3.2 hr. How long (hr) would it take the new panel alone to collect 81000 Btu?
Fleas have remarkable jumping ability. A 0.55mgflea, jumping straight up, would reach a height of 40cm if there were no air resistance. What is the flea's kinetic energy as it leaves the ground
A spaceship is moving relative to an observer with a speed of .7c shines a beam of light in the forward direction, directly toward the observer. What is the spent of the beam of light relative to the observer?
The shell, with radius R and negligible thickness, has net charge - 4.00 q. Find an expression for the electric field strength outside the sphere
A lump of putty with a mass of 0.550 kg and a speed of 0.750c collides head-on and sticks to an identical lump of putty moving with the same speed
A board lies on top of 2 uniform cylinders that lie on a fixed plane inclined at an angle theta. what is the acceleration of the board
When a 0.20-kg mass is suspended from a vertically hanging spring, it stretches the spring from its original length of 3.0 cm to a total length of 7.0 cm. What is the maximum speed of the mass as it oscillates
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