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Suppose a parallel plate capacitor (with capacitance C1) is fully charged (to a value Qo) by a battery. The battery (which supplies a potential difference of Vo) is then disconnected. If the plates of the capacitor are then moved closer apart (the separation distance d between the plates is halved), describe quantitatively what happens to:
1) the capacitance of the capacitor
2) the potential difference between the plates
3) the charge on the plates
4) the energy stored in the capacitor
q1. a 1000 rm kg wrecking ball hangs from a 15 rm m-long cable. the ball is pulled back until the cable makes an angle
how much work does the electric field do in moving a proton from a point with a potential of 145v to a point where it
Two musics students are tuning their guitars before arehearsal. If one middle C (262Hz) and the other plays a C sharp(277Hz), what will the frequencty of the bear be
The aorta is a major artery, rising upward from the left ventricle of the heart and curving down to carry blood to the abdomen and lower half of the body. obtain the magnitude (in m/s2) of the blood's centripetal acceleration
The energy of the first excited state of a hydrogen atom is -0.34eV +/- 0.0004eV. What is the minimum average lifetime for this state
A stationary observer hears 597.6 Hz change to 447.8 Hz as a source of constant frequency passes at constant speed. find the source's speed and frequency
Dr Doreen's sister Karen got a yellow camaron for her birthday. She races up to meet with Dr Doreen. What was Dr Doreen's acceleration
What hormones are hypersecreted causing hyperglycemia and hypertension? What is the cause and what physical factor allow to rule out thyroid problem.
A nuclear power plant generates 3000 MW of heat energy from nuclear reactions in the reactor's core. What is the plant's actual efficiency
A spherical asteroid has a radius of 545 km and a surface g of 3.0 m/s2. What is the mass of the asteroid, What is the potential energy of a 1 kg object on the surface
This problem introduces the concept of tension. The instance is a rope, oriented vertically, that is being pulled from both ends. Let and (with u for up and d for down) represent the magnitude of the forces acting on the top and bottom of the rope..
question a large plane having uniform charge density has an electric field just outside the plane that points directly
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