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A 2.60µF capacitor is charged by a 12.0-V battery. It is disconnected from the battery and then connected to an uncharged 4.50µF capacitor. Determine the total stored energy (Joules) before the two capacitors are connected. Determine the total stored energy (Joules) after they are connected. What is the change in energy (Joules)?
Show that the electric and magnetic fields of a point charge moving with constant velocity V are related by B = (1/c^2)(V x E) where c is the speed of light, and B and E are magnetic and electric fields respectfully
A 4.0-mF capacitor initially charged to 50 V and a 6.0-mF capacitor charged to 30 V are connected to each other with the positive plate of each connected to the negative plate of the other
You lay a mirror flat on the floor with one edge against a wall and aim a laser at the mirror. Find the angle of incidence of the laser ray on the mirror
An automobile is sliding down an icy road which is inclined at a 15 degree angle. The mass of the car is 1500 kg. Assume friction acts to slow the car, Determine the normal force on the car
when viewed in a spherical mirror the image of a setting sun is a virtual image. the image lies 17 cm behind the
a uniform electric field of magnitude 2.5x10^4 N/C makes an angle of 28 degree with a plane surface of area0.0133 m^
a gun has a spring constant of 10N/cm. when the gun is inclined upward by 30 degree to the horizontal a 10 g ball is shot to the height of 2 m above the muzzle of the gun
A ball is projected horizontally from the top of a building.One second later another ball is projected horizontally fromthe same point with the same velocity. What will the time difference be when the balls hit the ground
The toadfish makes use of resonance in a closed tube to produce very loud sounds. Calculate the intensity of the sound wave emitted
An infinite line of charge has linear charge density 5.50x 10-12 C/m. A proton (mass 1.67x 10-27 kg, charge +1.60 10-19 C) is 18.0 cm from line and moving directly toward the line at 1.20 x10^3 m/s. How close does the proton get to the line of char..
A light wave in air is incident on a water surface, (a) At what angle of incidence are the reflected and refracted waves at right angles to each other? What is the reflectivlty of the water for normal incidence? (c) At what angle of incidence is this..
a water tower 30 m tall is located at the top of a hill. from a distance of d 125 m down the hill it is observed that
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