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In a double-slit interference experiment, the wavelength is 477 nm, the slit separation is 0.120 mm, and the screen is 36.8 cm away from the slits. What is the linear distance between adjacent maxima on the screen?
A 76kg student consumes 2500 Cal each day and stays the same weight. One day, he eats 3500 Cal and, wanting to keep from gaining weight, decides to "work off" the excess by jumping up and down.
Find out the magnitude of the acceleration of the electron. How large is the pulling force it the wagon is moving with a constant speed.
A beam of light in air is incident on the surface of a rectangular block of clear plastic (n = 1.38 ). what is its velocity inside the block
A particle travels 16 times around a 18-cm radius circle in 37 seconds. What is the average SPEED (in m/s) of the particle
Mount McKinley (also called Denali) is the tallest mountain in North America, with a height of 6,200 m above sea level. how much work is done by gravity on the person
Two automobiles of equal mass approach an intersection. One vehicle is traveling with velocity 14.9 m/s toward the east, What was the initial speed of the northward-moving vehicle
A man pushes a lawn mower on a level lawn with a force of 189 N. If 38% of this force is directed downward, how much time is spent in pushing the mower this distance
Suppose a single electron orbits about a nucleus containing two protons (+2e), find the magnitude of the electron's centripetal acceleration
A ball is thrown straight upward. At 5.50 m above its launch point, the ball's speed is one-half its launch speed. What maximum height above its launch point does the ball attain?
Three equal point charges, each with charge 1.50, are placed at the vertices of an equilateral triangle whose sides are of length 0.550. What is the electric potential energy of the system? (Take as zero the potential energy of the three charges w..
A person pulls on a 50kg desk with a 200 N force acting at a 30 degree angle above the horizontal. The desk does not budge.
What is the cross-sectional area of the wire. Nichrome wire of cross-sectional radius 0.786 mm is to be used in winding a heating coil. If the coil must carry a current of 8.00 A when a voltage of 3.00 x 10^2 V is applied across its ends.
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