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A parallel-plate capacitor is made from two aluminum-foil sheets, each 5.7 cm wide and 5.6 m long. Between the sheets is a Teflon strip of the same width and length that is 3.4×10-2 mm thick. What is the capacitance of this capacitor? (The dielectric constant of Teflon is 2.1.) Express your answer using two significant figures.
A fountain sends a stream of water straight up into the air to a maximum height of 4.22 m. determine how many gallons per minute are being used by the fountain
Two shoppers walk from the door of mall to their car, that is 250m down a lane of cars and then turn 90 degrees to the right and walk an additional 60m what is the magnitude of the displacement of the shopper's car from mall door.
A person pushes a 16.0 kg shopping cart at a constant velocity for a distance of 18.0 m. She pushes in a direction 23.0° below the horizontal. evaluate the work done by the pushing force
A perfect negative index lens is used with a single molecule. How long time will it take to form a perfect image of themolecule with the ideal lens, and why?
Near the surface of the Earth there is an electric field of about 150 V/m which points downward. Use conservation of energy to determine the difference in the speed of the two balls when they hit the ground
You are walking along a small country road one foggy morning and come to an intersection. While you are crossing, you hear an ambulance siren, At what speed is the ambulance traveling
A satellite has a mass of 6000 kg and is in a circular orbit 4.10 x 105 m above the surface of a planet. What is the true weight of the satellite when it is at rest on the planet's surface
Chromium is produced by reacting with its oxide with aluminium. If 304 g of Cr2O3 and 108 g of Al completely react to form 204 g of Al2O3 how many grams of Cr are formed.
The supersonic aircraft Concorde has a length of 61.3 meters when sitting on the ground on a typical day when the temperature is 12. Celsuius . The Concorde is primarily made of aluminum. In flight at twice the speed of sound, friction with the ai..
A 1.00uF capacitor is connected in parallel with a 2.00uF capacitor, Find the potential on the negative plate of the 1.00uF caacitor and the equivalent capacitance of the two capacitors
The velocity of a boat with respect to the shore is 2 meters/second. The velocity of the water with respect to the shore is 1 meter/second. What is the distance traveled by boat after 3 minutes if the boat is traveling in the opposite direction of..
An isolated hollow spherical conducting shell has a charge of 10^-6 C. In some manner, a point charge of 3*10^-6 C is placed inside the cavity of the shell,find the charge on the inner surface of the shell
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