TV remote controls use ________ radiation
Fill in the blank(s) with correct word
infrared
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Thermodynamic Devices: An ideal Carnot refrigerator with a performance coefficient (COP) of 5.0 cools items inside of it to 5.0° C. What is the high temperature needed to operate this refrigerator?
A. 61° C B. 1395° C C. 6° C D. 30° C
Why were globular clusters so vital to Harlow Shapley's success?
What will be an ideal response?
Information-carrying nerves are connected to the retina at the
A) fovea. B) blind spot. C) cornea. D) iris. E) periphery.
Observations of radio waves from astronomical objects suffer from poorer resolution than visible observations with the same size dish (or mirror) because
a. the signals are so weak in the radio region. b. the wavelength of radio waves is much longer than the wavelengths of visible light. c. radio telescopes are generally much smaller in diameter than optical telescopes. d. it is very difficult to detect radio waves. e. radio telescopes don't use solid mirrors.