Two photons that have the same wavelength also have the same
A) frequency.
B) energy.
C) both of these
D) neither of these
Answer: C
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Galileo's observation of the satellites of Jupiter showed that ________.
A. the Moon was not a flawless sphere B. nothing orbited Earth C. there were objects that did not orbit Earth D. planets orbited the Sun E. None of these choices is correct.
An organ pipe open at both ends is 1.5 m long. A second organ pipe that is closed at one end and open at the other is 0.75 m long. The speed of sound in the room is 330 m/s. Which of the following sets of frequencies consists of frequencies which can be produced by both pipes?
A. 110 Hz, 220 Hz, 330 Hz B. 220 Hz, 440 Hz, 660 Hz C. 110 Hz, 330 Hz, 550 Hz D. 330 Hz, 440 Hz, 550 Hz E. 220 Hz, 660 Hz, 1 100 Hz
Websites with an asymmetrical arrangement appear centered or even.
Answer the following statement true (T) or false (F)
Stellar nucleosynthesis is responsible for the existence of all elements except hydrogen
Indicate whether the statement is true or false