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An air-filled parallel plate capacitor is connected to a battery and allowed to cahrge up Now a slab of dielectric materialis placed between the plates of the capacitor while he capacitor is still connected to the battery. After this is done one would find-
A. The voltage across the capacitor has increasedB. The charge on the capapcitor has not changedC. the energy stored in the capacitor has decreasedD. the cahrge on the capacitor has increasedE. None of the above
An 8.66g bullet is fired into a 260g block that is initially at rest at the edge of a table of h = 1.07 m height, What is the initial horizontal velocity of the block as it flies off the table
as an admirer of thomas young you perform a double-slit experiment in his honor. you set your slits 1.15 mm apart and
A bicycle racer is going downhill at 15.0 when, to his horror, one of his 2.06 wheels comes off when he is 76.0 above the foot of the hill. How much total kinetic energy does the wheel have when it reaches the bottom of the hill
A potential energy function for a two-dimensional force is of the form U = 3.89x3 y - 5.96x. Calculate the force that acts at the point (1.28m,1.17m). Enter the x-component first and then the y-component.
soap bubbles can display impressive colors which are the result of the enhanced reflection of light of particular
A 100 g block is launched by compressing a spring of constant k=200N/m a distance of 12 cm. The spring is mounted horizontally, and the surface directlyunder it is frictionless.
two carts connected by a 10cm string are moving down a long dynamics track. suppose the leading cart is twice as
The refractive indices of materials A and B have a ratio of nA/nB = 1.79. The speed of light in material A is 1.07 x 10^8 m/s. What is the speed of light in material B
A device used in radiation therapy for cancer contains 3.10×10-1 g of cobalt 2760Co (59.9333819 u). Determine the activity of the radioactive material
Mercury is poured into a U-tube. The left arm of the tube has cross-sectional area A1 of 10.4 cm2, Determine the length of the water column in the right arm of the U-tube
An athlete swings a 4.50-kg ball horizontally on the end of a rope. The ball moves in a circle of radius 1.000 m at an angular speed of 0.540 rev/s. What is the tangential speed of the ball
You are in a laboratory and investigating properties of a converging lens. You place a screen 80 cm away from the object, Calculate how far the image is from the lens
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