How much heat must be removed from steam to change it to liquid?
A) 540 cal/g
B) 600 cal/g
C) 830 cal/g
D) 1 kcal/g
E) 1.8 kcal/g
A
Physics & Space Science
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A musical tone, sounded on a piano, has a frequency of 820 Hz and a wavelength in air of 0.400 m. What is the wave speed?
a. 587 m/s c. 235 m/s b. 328 m/s d. 170 m/s
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Which of the following was NOT a source of heat that helped differentiate the Earth?
A) solar radiation B) impacts C) gravitational potential energy D) radioactive decay
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A pre-electronic thermostat employs a coiled
A) wire of low conductivity. B) bimetallic strip. C) tube of mercury.
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A__________is a segment of a chromosome that controls a certain function
A) centriole B) chloroplast C) leucoplast D) gene
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