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Light of frequency 7.0×1014 Hz is directed on a particular metal surface. An energy of 4.0 × 10-19 J = w is required to remove an electron from the surface of the metal.
a) Find the maximum KE of the emitted electron
b) What color light was used?
c) What color of light will just ionize the metal ( Hint: KE will be zero).
What is meant when it is said that something is quantized? Distinguish between a proton and a photon. How are the frequency and wavelength of an electromagnetic wave related?
A meter stick with a mass of 0.159kg is pivoted about one end so it can rotate without friction about a horizontal axis. Calculate the angular speed of the stick
An interferometer can be used to measure very small distances, much like a caliper but with a far greater precision. How far did the movable arm of the interferometer travel
For quasistatic approximations and Faraday's Law for an Amperian loop, find the induced electric field. You may assume the induced electric field goes in horizontal circles and its strength depends on radius. Find the induced electric field inside..
Two tugboats pull a disabled supertanker. Each tug exerts a constant force of 1.50×106\rm N , one at an angle 10.0 degrees west of north, What is the total work done by the two tugboats on the supertanker
Parallel rays of monochromatic light with wavelength 585nm illuminate two identical slits and produce an interference pattern on a screen that is 75.0cm from the slits. what is the intensity at a point on the screen
Two rectangular pieces of plane glass are laid one upon the other on a table. Find the angle of the wedge
You are given a container with 5.0g of hydrogen atoms. What is the total charge on the electrons in the container? What is the total charge on the protons
mayan kings and many school sports teams are named for the puma cougar or moutain lion felis concolor the best jumpr
Express the final differences in percentage terms.- Calculate the distribution transformer ratings if the subtransmission voltage is 69 kV.
A fully charged capacitor with a voltage of 120 V is discharged through a resistor. What is the voltage across the capacitor at the end of five time constants
in a rectangular corrdinate system a postitve point charge q 6.00nc is placed at the point x .150 m y 0 and an
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