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Electron A has a De Broglie wavelength (lambda). If electron B has twice the kinetic energy of electron A, the de Broglie wavelength of electron B is: A) 2lambda B) lamda * square root 2 C) lambda/ square root 2 D) lambda/ 2
A beam of light is incident on a plane mirror at an angle of 30 degrees to the normal of the mirror. find the angle between the incident beam and reflected beam
what must be his average speed if he is heading 30.0° south of west for the remaining 54.6 min? mi/h (b) What is his average velocity for the entire trip?
question1a current of 1a is injected into the earth at the bottom of a borehole. derive an expression for the voltage
questiona the proton-proton chain efficiently converts hydrogen into helium according to 4h rarr4 he. a helium 4
A uniform, spherical cloud of interstellar gas has mass 2.0Ã-1030 kg and radius 9.0Ã-1012 m, what will be the star's rotation period
A nonconducting solid sphere of radius R carries a volume charge density that is proportional to the distance from the center: ? = Ar for r ? R, where A is a constant; ? = 0 for r > R. Find the total charge in the sphere
Cowboy Joe wishes to shoot his assailant by ricocheting a bullet off the mirrored metal plate. To do so, should he simply aim at the mirrored image of his assailant.
In a photoelectric-effect experiment it is observed that no current flows unless the wavelength is less than 548 nm. What is the stopping voltage required
A jet airplane flying from Darwin, Australia, has an air speed of 256 m/s in a direction 5.0° south of west. What is the magnitude of the velocity of the airplane relative to earth
A steel washer is suspended inside an empty shipping crate from a light string attached to the top of the crate. The crate slides down a long ramp that is inclined at an angle of 39 degrees above the horizontal. The crate has mass 244 kg .
Find out the magnitude of the impulse delivered to a soccer ball when a player kicks it with a force of 1350 . Assume that the player's foot is in contact with the ball for 6.00×10-3.
A two-slit pattern is viewed on a screen 1.20 m from the slits. If the two third-order minima are 27.7 cm apart, what is the width of the central bright fringe?
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