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In a double-slit experiment, the slit spacing is 0.22m, the distance to the screen is 3.30m, and light of wavelength 662nm is used. If a thin sheet of polystyrene (n=1.49) is placed over the bottom slit only, the entire interference pattern moves downward on the screen by 3.5mm. What is the thickness of the polystyrene sheet?
A force of 315 N is applied horizontally to a wooden crate in order to displac eit 35.0 m accorss a level surface at a constant velocity. As a result of this work the crate's internal energy is increased by an amount equal to 14 percent of the cra..
Three resistors, 28, 48, and 80 ?, are connected in series, and a 0.53-A current passes through them. What is the potential difference across the three resistors
Find the Youngs modulus for the muscle tissue
Two 2.00 cm X 2.00 cm plates that form a parallel-plate capacitor are charged to ± 0.708 nC. had are the electric field strength inside and the potential difference across the capacitor if the spacing between the plates is (a) 1.00 mm and (b) 2.00 ..
Two passenger trains A and B, each 220 m long, pass a 50 m long railroad platform in Winnepeg. The trains are moving in opposite directions at equal speeds of 0.670c with respect to the ground, What is the difference in arrival times
a snowboarder that weighs 80 kg starts from rest at the top of the hill with a downward slope of 30 degrees from the horizontal. What is the coeffient of kinetic friction
You are on a boat in a fog and know there are cliffs ahead of you somewhere, but you cannot see them. How far away are the cliffs
In the last seconds of the championship basketball game, a 7 ft center's team is down by 2 points. He must make a 3 point shot to win the game. He is standing on the 3 point shot line.
Suppose that the Earth's orbit around the Sun is perfectly circular. Employing conservation arguments, find the value of the eccentricity e of the orbit
What is the minimal mass of helium (density 0.18 kg/m^3) needed to lift a balloon carrying two people in a basket, if the total mass of people, basket
q. a ballistic pendulum consists of a chunk of clay suspended from a rope. while a bullet is fired into clay it sticks
A 27.4 kg runaway grocery cart runs into a spring with spring constant 387 N/m and compresses it by 75.5 cm. What was the speed of the cart just before it hit the spring
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