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what is the speed of an electron with a de Broglie wavelength of .29nm?
What is the speed of a proton with a de Broglie wavelength of .29nm?
A 7.01- g bullet is moving at 563.00 m/s as it leaves the 0.58- m-long barrel of a rifle. What is the average force on the bullet as it moves down the barrel
A 400 g lemming (does anyone remember that old computer game?) waddles horizontally off a small 4.90 m high cliff with a speed of 0.5 ms-1.How far from the base of the cliff will the lemming land? What will be the lemmings speed upon landing.
A block is given an initial velocity of 5 m/s up a frictionless 19° incline. How far up the incline does the block slide before coming (momentarily) to rest.
A 10.1-g bullet is fired into a stationary block of wood having mass m = 5.04 kg. The bullet imbeds into the block. What was the original speed of the bullet
A student sitting on a frictionless rotating stool has rotational inertia 0.92kg?m2 about a vertical axis through her center of mass, Ignoring her arm mass, what's her new rotational velocity
A 35 N boy pushes down on the ground with a force of 10 N perpendicular to the surface of the ground. What is the magnitude of the force of the ground on the boy
What is the final charge of each conductor. Two identical spherical conductors X and Y are mounted on insulated stands. X carries the charge of +8.0nC and Y carries a charge of -2.0nC.
A computer is reading data from a rotating CD-ROM. At a point that is 0.0256 m from the center of the disk, What is the centripetal acceleration at a point that is 0.0779 m from the center of the disc
Photons with wavelength 670 nm are capable of producing photoelectrons from a particular substance. Determine the substance's work function and cutoff wavelength
The figure shows the light intensity on a screen behind a double slit. The slit spacing is 0.20 mm, What is the distance from the slits to the screen
In Europe, the standard voltage is 240 V (rms), AC, and 50 cycles/s. Suppose you take your 5.00 W electric razor to Rome and plug it into the receptacle, What is the resistance of your razor
What must be the thickness of the liquid layer if normally incident light with? = 504 nm in air is to be strongly reflected
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