The ratio of the density of a material to the density of water is the __________
Fill in the blank(s) with correct word
specific gravity
Physics & Space Science
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A 340-hertz sound wave travels at 340 m/s in air with a wavelength of
A) 1 m. B) 10 m. C) 100 m. D) 1000 m. E) none of the above
Physics & Space Science
How long is the precession cycle?
A) 1 day B) 29.5 days C) 365.24 days D) 18 years, 11.3 days E) 26,000 years
Physics & Space Science
The greenhouse effect occurs because
a. low frequency EM waves are reflected from the atmosphere. b. high frequency EM waves are reflected from the atmosphere. c. the ozone layer absorbs ultraviolet light. d. carbon dioxide in the atmosphere absorbs infrared radiation. e. none of the above
Physics & Space Science
Superconductivity was discovered by:
a. Volta. b. Ohm. c. Onnes. d. Bednorz and Müller.
Physics & Space Science