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(a) A 1.00-µF capacitor is connected to a 12.0-V battery. How much energy is stored in the capacitor?
µJ
(b) Had the capacitor been connected to a 6.00-V battery, how much energy would have been stored?
A rock is suspended by a light string. When the rock is in air, the tension in the string is 40.6 N. When the rock is totally immersed in water, What is the density of the unknown liquid
How does the angular separation between fringes in single-slit diffraction experiment change when the distance of separation between the slit and screen is doubled
A scaffold of mass 57 kg and length 6.5 m is supported in a horizontal position by a vertical cable at each end. What is the tension in the cable closer to the painter
A photographer uses his camera, whose lens has a 60mm focal length, to focus on an object 2.5m away. How far must the lens move to focus on this second object
Nitrogen in a horizontal piston-cylinder assembly expands from an initial volume of 0.10 m3 to a final volume of 0.5 m3 as the gas is heated for 5 minutes by an electrical resistance heater consuming 1 kW of electric power
Light from an argon laser strikes a diffraction grating that has 5330 grooves per centimeter. Determine the wavelength of the laser light
The currents in household wiring and power lines alternate at a frequency of 60.0 Hz. What is the wavelength of the EM waves emitted by the wiring
A police officer is investigating a crash between two identical cars of mass m = 1500 kg. What is the speed that the officer writes on the ticket
A 131kg astronaut (including space suit) acquires a speed of 2.32m/s by pushing off with her legs from an 1760kg space capsule. What is the change in speed of the space capsule
a 45kg box is pulled across a horizontal floor. a rope attached to the box makes an angle of 30 degrees with the
Halleys comet, which passes around the sun every 76 years, has an elliptical orbit. When closest to the sun (perihelion) it is a distance of 8.823 x 10^10m, calculate its speed at aphelion
A vertical scale on a spring balance reads from 0 to 195 rm{N}. The scale has the length of 11.5 rm{cm} from the 0 to 195 rm{N} reading. A fish hanging from the bottom of spring oscillates vertically at a frequency of 2.30 rm{Hz}. What is the m of..
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