According to the theory of global warming, the average temperature of Earth’s air began rising rapidly when humans first started
burning fuels such as oil. Burning these fuels releases carbon dioxide into the air. Scientists have observed that carbon dioxide traps heat from the Sun in Earth’s atmosphere. They have also observed ice melting in some areas.
Which part of the scientific cycle does the graph directly represent?
A.experiments
B.xplanations
C.questions
D.facts
Which part of the scientific cycle does the graph directly represent?
A.experiments
B.xplanations
C.questions
D.facts
2 answers:
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Explanation:
Check out the picture I drew for a minute before reading this...
B. Distance [the red line] is a scalar quantity reflecting how far an object has traveled. Displacement [the green line] is a vector quantity reflecting how far an object has moved from a point. The key difference is that distance can be any sort of path while displacement is always a vector (or a straight line) between a starting point and a finishing point. Sometimes distance and displacement are equal to one another. Sometimes you have a distance traveled, but zero displacement overall; which is what's going on in your question.
A. The distance that the racecar traveled is indeed 500m. But at the end of the lap, it is right back where it started. So overall, it has been displaced 0m.
