As you move farther away from a source emitting a pure tone, the frequency of the sound you hear decreases
Indicate whether the statement is true or false
F
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The orbits of the electrons in the hydrogen atom
are a)evenly spaced. b)characterized by a principal quantum number. c)always smaller than that of the ground state. d)all at the same energy level within a given atom.
Joe's toaster broke. He bought a toaster oven to replace it, telling his wife Annie that it is cheaper to make toast in the toaster oven than in the range's oven
Toast takes 5 minutes to cook in the toaster oven while it takes only 3 minutes in the range's oven. Is Joe right or is Annie, who says they've wasted their money? Explain.
The San Andreas fault in California is a
A) thrust fault. B) strike slip fault. C) normal fault. D) reverse fault.
If you add two vectors with magnitudes of 200 and 40, which of the following is the only possible resultant?
A. 100 B. 260 C. 0 D. 200 E. 40