A particle confined in a rigid one-dimensional box (an infinite well) of length 17.0 fm has an energy level En = 24.0 MeV and an adjacent energy level En+1 = 37.5 MeV
What is the value of the ground state energy? (1 eV = 1.60 × 10-19 J)
A) 1.50 MeV
B) 13.5 MeV
C) 0.500 MeV
D) 4.50 MeV
A
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In a two-slit experiment, the slit separation is 3.00 × 10-5 m
The interference pattern is created on a screen that is 2.00 m away from the slits. If the 7th bright fringe on the screen is a linear distance of 10.0 cm away from the central fringe, what is the wavelength of the light? A) 100 nm B) 204 nm C) 214 nm D) 224 nm E) 234 nm
A standing wave is set up on a string so that it has 5 nodes. If you start at the central node and move exactly one wavelength in either direction, you will wind up at
A. neither a node nor an antinode but still on the string. B. an antinode. C. a node. D. somewhere off the string.
A bird sitting on the limb of a tree is moving about 30 km/s with respect to the Sun. If the bird takes 1 second to drop down to a worm below, the worm would be 30 km downrange from the bird when it reached the ground
This faulty reasoning is best countered with Newton's A) law of inertia. B) law of gravity. C) laws of motion. D) none of the above
If an electric toaster operating on 120 volts draws a current of 6 amperes, the resistance of the toaster is 20 ohms
a. True b. False Indicate whether the statement is true or false