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A given capacitor is connected to a 12.0 V battery, and when fully charged stores 2.58 x 10-6 J of energy. if the capacitor is disconnected from the battery, and separation of the plates is doubled (the capacitor remains disconnected from the battery) how much energy is stored in the capacitor in the new configuration?
a 4.5kg ham is thrown into a stationary 15-kg shopping cart.at what speed will the cart travel if the ham had an initial speed of 2.2m/s, how long did the collision between the two last
A engineer designs a heat engine using flat-plate solar collectors. What is the maximum possible efficiency of this engine
an aluminum wirehaving a cross-sectional area equal to3.1010-6m2carries a current of8.00a. the density of aluminum is
A Carnot engine has an efficiency of 18.2%. It operates between constant-temperature reservoirs differing in temperature by 138 C °. determine the temperature of the cold reservoir
A nonreflective coating (n = 1.40) covers the glass (n = 1.52) of a camera lens. Assuming that the coating prevents reflection of a specific wavelength (vacuum = 535 nm), find the minimum nonzero thickness that the coating can have.
A group of particles is traveling in a magnetic field of unknown magnitude and direction. You observe that a proton moving at 1.50 in the -direction experiences a force of 2.10×10?16 in the -direction, What is the direction of this the magnetic for..
A sphere of radius 1.0 cm is dropped into a glass cylinder filledwith a viscous liquid. The mass of the sphere is 12.0 g and thedensity of the liquid is 1200 kg/m3. The sphere reaches a terminalspeed of 0.15 m/s. What is the viscosity of the liquid?
Hurricane winds of 95 m/h are blowing over the flat roof of a well sealed house. What is the difference in air pressure between the inside and outside of the house
A parallel-plate capacitor has 1.85 cm2 plates that are separated by 5.72 mm with air between them. how much energy does it store
Estimate the time the ball is in contact with the floor to be 0.06 seconds. Compute the average force the floor exerts on the ball.
The space between the plates of a capacitor is filled with water. By what factor does the water change the capacitance relative to that found when the plates are filled with air?
A 0.500kg ball is dropped from rest at a point 1.20m above thefloor. The ball rebounds straight upward to a height of0.700m. What is the magnitude and direction of the impulseapplied to the ball by the floor?
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