Determine the longest-wavelength light
The fact that photons hitting a metal will release electrons is the quintessence of the photoelectric effect. When the minimum energy needed to free a photoelectron from sodium is 1.8 eV, determine the longest-wavelength light which must be used?
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If thermostat reads 15 degrees celsius after four minutes, what will it be after being in room for 6 minutes? and for 11 minutes?
Calculate the empirical formula of the oxide and write down a balanced equation for the reaction of molecular oxygen and the phosphorus on the basis of this empirical formula.
The isotropic point source radiates uniformly in all directions. When the electric field amplitude at 10 meters from the source is calculated to be 10 V 1m, find out the radiant flux (power).
Determine the final temperature of the part (°C) if 290 g aluminum engine part at an initial temperature of 28.0°C absorbs the 3,189 J of heat.
Determine the equilibrium partial pressure of PCl5 in a 3.00 L vessel that was found to contain the .03 atm of PCl3 and .03 atm of Cl2 the equilibrium.
Suppose that the population of heights of female college students is approximately normally distributed with mean m of 68.66 inches as well as standard deviation s of 5.13 inches. A random sample of 67 heights is obtained. Show all work. Find out
A positive thin lens is employed to project the enlarged image of a slide onto a wall 10 m away. When the slide is 20 X 30 mm, and if its image is to be 2 X 3 m, what should be the focal length of the lens and the distance from it to slide?
Calculate the change in the internal energy of the system? A system receives 174 J of heat and delivers 2,151 J of work to its surroundings.
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