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A parallel-plate capacitor in air has a plate separation of 1.50 cmand a plate area of 25.0cm2. The plates arecharged to a potential difference of 2.50 x 102 V anddisconnected from the source. The capacitor is then immersedin distilled water. Determine (a) the charge on theplates before and after immersion, (b) the capacitance andpotential difference after immersion, and (c) the change in energystored in the capacitor due to immersion. Assume thedistilled water is an insulator.
An arbitrary mass of 0.200 kg is connected to a light spring with force constant 5 N/m and is free to oscillate on a horizontal, frictionless surface. What is the maximum speed of the mass
atmospheric pressure as measured by a mercury barometer is 99.0 kPa, a patient is fed by intraveneous feeding. How high is the mercury in the barometer
A wheel (radius 0.6 m) is rolling on a horizontal surface with a center of mass acceleration of 0.7 m/s2. compute the friction force acting between the wheel and the surface
You are visiting NASA and are watching a test rocket launch. You estimate that at launch the angle of elevation of the rocket is 60 degress, calculate The altitude of the rocket when the engine cut out
a standing wave is in a open-end tube as shown. the tube legth is L = 1.80m. determine the wavelength of the standing wave
A certain conductor has 6.20 10^28 free electrons per cubic meter, a cross-sectional area of 4.00 10-6 m2, Find the drift speed of the electrons in the conductor
A 100 W lightbulb is plugged into a standard 120 V outlet. How much does it cost per month (30 days) to leave the light turned on continuosly? Assume electrical energy costs 7.5/kWh. (Enter dollars with no unit) What is the resistance of the bulb? Wh..
A textbook of mass 1.90kg rests on a frictionless, horizontal surface. A cord attached to the book passes over a pulley whose diameter is 0.150m, What is the tension in the part of the cord attached to the textbook
A 8.0 kg block oscillates with an amplitude of 0.070 m on a light spring constant k= 13 N/m. What is the maximun value of the block's velocity
Two metal conductors that are separated by a distance of 0.89 mm. When an electric spark jumps between them, What is the magnitude of the potential difference
A 50-kg diver steps off a 10-meter high platform at the local pool. She comes to rest 3.0 meters below the surface of the water
A steel wire of negligible mass is placed under tension by attaching its bottom to the tip of a solid copper cone of height H. what is the wire's new fundamental frequency
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