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A beam of electrons passes through a single slit 49.5 nm wide. The width of the central fringe of a diffraction pattern formed on a screen 1.3 m away is 7.0 cm. What is the kinetic energy of the electrons passing through the slit?
Lithium is a light metallic element whose ions are used in highly efficient batteries for portable laptop computers. Each lithium ion(Li+) contains two electrons and three protons. Suppose a lithiumion is surrounded by a Gaussian surface. Is the flux..
Photons of wavelength 65.0 pm are Compton-scattered from a free electron which picks up a kinetic energy of 0.95 keV from the collision
A source delivers an AC voltage of the form ?v = 98.0 sin (80?t), where ?v is in volts and t is in seconds, to a capacitor. The maximum current in the circuit is 0.500 A. Find the rms voltage of the source
A electric wire with 3.85A current is placed in a magnetic field of strength .97T. What is the force on the wire
A 15-g sample of the candy is placed in a small aluminum container of mass 0.325 kg filled with oxygen, compute the Calorie content of 75g of candy
Two narrow slits are illuminated by a laser with a wavelength of 552 nm. Calculate the distance between the two slits
What is the bound charge on the surface of the cavity? Is this result consistent with the total bound charge being zero?
A mass of 145 g of hot coffee at 90.0 oC is poured into an insulated cup containing 240 g of ice initially at 0.0 oC. How many grams of liquid will there be then
a cylindrical tank is 50 ft deep 39.5 ft in diameter and filled up to the top with water. a flashlight shines into the
A mirror has a focal length of 10 cm. An object is located 15 cm to the left of the mirror. What is the total magnification for the two images
A 7.80-g bullet moving at 600 m/s penetrates a tree trunk to a depth of 5.60 cm. find the average frictional force that stops the bullet
Suppose a block of mass M is sliding down an inclined plane which makes an angle t with the horizontal. What is the work done by friction as the block travels a distance d along the plane
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