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A sodium surface, which has a work function of 2.46eV is illuminated with a wavelength = 300nm light.
(a) Find the KE of the ejcted photoelectrons.
(b) Find the maximum speed of the photoelectrons.
(c) What is the deBroglie wavelength of these electrons?
(d) Find the threshold frequency for Sodium.
On a cool morning, when the temperature is 16.0 ^circC, you measure the pressure in your car tires to be 20.0 psi. After driving 30.0mi on the freeway, temperature of your tires is 51.0 ^circC.
We drop a 26-g ice cube (0C) into 1000 g of water (20C). Find the total change of entropy of the ice and water when a common temperature has been reached
A 12-kg box is free from the top of an incline that is 5.00m long and makes an angle of 40 degrees to the horizontal. A 60-N friction force impedes the motion of the box.
On a cold day, 25000 J of heat leaks out of a house. The inside temperature is 22 °C, What is the increase in the entropy of the universe that this heat loss produces
An alpha particle and beta^ {-} particle, each with kinetic energy 35 {rm keV}, are sent through a 1.10 {rm T} magnetic field. The particles move perpendicular to the field. Find the curvature radius for alpha particle's trajectory. Hint: The kine..
A corner construction lot has the shape of a right triangle. If the two sides perpendicular to each other are 38m long and 40.3m long
In one of the original Doppler experiments a tuba was played on a moving flat train car at a frequency of 75 hz, What beat frequency was heard if the train car approached the station at a soeed of 10m/s
A plane leaves the airport in Galisto and flies 170 km 68 degrees east of north and after that changes direction to fly 230 km at 48 degrees south of east, after that it makes an immediate emergency landing in a pasture. When airport sends out a r..
Create a formula to get the time constant of the liquid level system shown in the below figure. When the avg. operating level is h0. The resistance R is linear.
Blocks with masses of 4.0, 8.0, and 9.0 are lined up in a row on a frictionless table. All three are pushed forward by a 16 force applied to the 4.0 block. How much force does the 8.0 block exert on the 8.0 block.
In the x-y plane, a point of +2.6 uC is on the x-axis at (-3 cm, 0), and a second point charge of -3.4 uC is also located on the x-axis, Determine the Work required (in keV) to move an electron from Pa to Pb
A small block with mass 0.0450kg slides in a vertical circle of radius 0.600m on the inside of a circular track. How much work was done on the block by friction during the motion of the block from point A to point B
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