Heat flow through empty space
A. is impossible
B. occurs through conduction
C. occurs through convection
D. occurs through radiation
Answer: D. occurs through radiation
Physics & Space Science
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A BTU has more energy than a calorie.
Indicate whether the statement is true or false.
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Which of the above molecules contains a carbonyl group?
A) a B) all but a C) all but b D) c E) all but d
Physics & Space Science
In ultrasound the __________ of the sound is much greater than in normal sound
Fill in the blank(s) with correct word
Physics & Space Science
Which of the following are reasonable values for the magnitude of a vector?
(i) 0 (ii) -1 (iii) +1
1.all of them 2.(i) and (iii) 3.(i) and (ii) 4.(iii) only
Physics & Space Science