Which of these is an example of convection?
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A. an egg boiling in water
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B. an egg frying in a pan
C. an egg exposed to a flame
D. an egg warming under a light
<span>The
answer is X-rays.<span> </span>Chandra observes the universe
in X-ray vision. The observatory has helped astronomers discover black holes,
dark matter, quasars, and supernovas and see beyond regions in the universe past
that have high temperatures and very high
luminosity. It has allowed us to see the
universe beyond our visual capacity (visible light of the electromagnetic spectrum).
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The first object is also negatively charged that is why people say opposites attract. have a good day!
Answer:
Efficiency is the percent of work put into a machine by the user (input work) that becomes work done by the machine (output work). The output work is always less than the input work because some of the input work is used to overcome friction. Therefore, efficiency is always less than 100 percent.
<span>C.the moon at apogee coming between Earth and the sun along a straight line
So, option C is your most accurate answer.
Hope this helps!
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