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A parallel-plate capacitor in air has a plate separation of 1.50 cm and area of 25.0 cm^2. The plates are charged to a potential difference of 250 V and disconnected from the source. The capacitor is then immersed in distilled water. Determine:
(a) the charge on the plates before and after immersion,
(b) the capacitance and potential difference after immersion, and
(c) the change in the amount of energy stored in the capacitor.
A roller coaster at the Six Flags Great America amusement park in Gurnee, Illinois, incorporates some clever design technology and some basic physics. What is the radius of the arc of the teardrop at the top
Three balls with masses of 3.0 kg, 1.0 kg, and 5.0 kg are located at coordinates (8.0m,8.5m), (8.5m,4.5m), and (4.5m,1.0m), What is the x-coordinate of the center of mass
Assuming that a light bulb acts as a point source emitting the light isotropically at 100W. What is the root-mean-square value of the electric field at distance d=20m from the bulb
The wheel of the car has a radius of 0.340 m. The engine of the car applies a torque of 282 N•m to this wheel, that does not slip against the road surface. Since the wheel does not slip, the road must be applying the force of static friction to the w..
On the Moon, the average surface temperature is 127 ?C during the day and -183 ?C during the night. What is the corresponding change on the Fahrenheit scale
an automobile wheel and tire having a diameter of 93.7 cm and a mass of 43.9 kg is bolted to a test machine. the center
5 moles of a monatomic gas has its pressure increased from 105 Pa to 1.5*105 Pa. calculate How much work is done by the gas
A snowboarder starts from rest and rides 39.47 m down a snow-covered slope that makes an angle of 33.19° with the horizontal, How far will she travel along the flat snow
A rocket for use in deep space is to be capable of boosting a total load (payload plus the rocket frame and engine) of 3.15 metric tons to a speed of 10 000 m/s. How much fuel plus oxidizer is required
question1a rocket with mass m is fired vertically upward. at an instant it reaches an altitude of 800m and a speed of
Using the method of image charges find an approximate expression for the force on the charge in the case where the charge is very close to one of the planes (that is, b
The first car has twice the mass of a second car, but only half as much kinetic energy. What were the original speeds of the two cars
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