Light with a frequency of 8.70 × 1014 Hz is incident on a metal that has a work function of 2.80 eV
What is the maximum kinetic energy that a photoelectron ejected in this process can have? (1 eV = 1.60 × 10-19 J, h = 6.626 × 10-34 J ? s)
A) 8.7 × 10-19 J
B) 3.1 × 10-19 J
C) 1.3 × 10-19 J
D) 2.4 × 10-19 J
E) 4.5 × 10-19 J
C
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The activation enthalpy for creep is determined in Example Problem 9.1 between the temperatures of 1083 K and 1053 K. Determine the activation enthalpy between 973 K and 1053 K using the stress of log ?=7.10.
What will be an ideal response?
If a light source is approaching you at a speed very close to the speed of light, it will appear
A) redder than it is. B) bluer than it is. C) brighter than it is. D) fainter than it is. E) lower temperature than it is.
The emf in a conducting rod of length L moving perpendicular to a magnetic field is directly proportional to the speed of the rod
Indicate whether the statement is true or false
Carbon dating was used to establish the age of the Shroud of ______________
Fill in the blank(s) with correct word