In an experiment on the photoelectric effect, a beam of monochromatic light is aimed at a nickel-plated cathode. a scientist uses mathematical formulas to calculate the maximum speed of the electrons that the cathode releases which constant most limits the precision of the calculation? a planck's constant b the charge of one electron c the mass of an electron d the work function of nickel
Answers: 3
Physics, 22.06.2019 16:40, Crxymia
Aparticle's position is given by x = 3.00 - 9.00t + 3t2, in which x is in meters and t is in seconds. (a) what is its velocity at t = 1 s? (b) is it moving in the positive or negative direction of x just then? (c) what is its speed just then? (d) is the speed increasing or decreasing just then? (try answering the next two questions without further calculation.) (e) is there ever an instant when the velocity is zero? if so, give the time t; if not, answer "0". (f) is there a time after t = 3 s when the particle is moving in the negative direction of x? if so, give the time t; if not, answer "0".
Answers: 3
Physics, 22.06.2019 17:00, deathray4035
Photons with the highest energy have the longest period
Answers: 1
Physics, 22.06.2019 21:50, gshreya2005
Which component is used to measure the current in a circuit? oa. switch ob. resistor oc. ammeter the answer is c. for y’all plato people
Answers: 1
Physics, 22.06.2019 23:00, gabrieljerron
Determine the force the sun exerts on an object with a mass of 80.0 kg if that object is on the earth. what is the force exerted by the moon on the same object? what is the force the earth exerts on it?
Answers: 1
In an experiment on the photoelectric effect, a beam of monochromatic light is aimed at a nickel-pla...
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