When sound passes from air into water

A) its wavelength does not change.
B) its frequency does not change.
C) its velocity does not change.


B

Physics & Space Science

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The largest volcano found on one of the terrestrial planets is ____________________

Fill in the blank(s) with correct word

Physics & Space Science

Stare at a red wall for a few minutes and then gaze at a white wall. Due to retina fatigue you see

A) more red. B) cyan. C) black.

Physics & Space Science

The last major dinosaurs were wiped out as a consequence of a major impact with the Earth about 65 million years ago. All but one of the following statements would be regarded as evidence for this claim

A) The fossil record shows a mass extinction event 65 million years ago, where only 25% of the species survived. B) At least 150 craters from past impacts have been identified, including one of the right age and size in Mexico. C) A layer of iridium in 65-million year old sediments in the Earth's crust D) Multiple historical accounts describe a planetary-level flood and storm that wiped out most living things.

Physics & Space Science

The density of water at 4°C will slightly decrease when it is

A) cooled. B) warmed. C) both of these D) none of the above

Physics & Space Science