If a wave's frequency doubles, its wavelength
A) is halved.
B) is also doubled.
C) is unchanged, as c is constant.
D) is now 4 times longer.
E) becomes 16 times longer.
A
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Cosmic inflation continues today in the cosmological redshifts and dark energy
Indicate whether the statement is true or false
The element potassium should produce compounds most similar to those of
a. Tc. b. Na. c. Al. d. Sr.
If L represents angular momentum, I represents moment of inertia, p represents linear momentum, m represents mass, and r represents a distance, which of the following can represent kinetic energy?
a. p2/2m b. L2/2I c. rpI d. all of the above e. both (a) and (b)
A guitar is perfectly tuned. The tension on its strings is then increased. Which of the following is true?
A. The speed of sounds from the guitar is larger than before B. The frequencies of sounds from the guitar are higher than before C. The wavelengths of sounds from the guitar are longer than before D. The amplitudes of sounds from the guitar are larger