Answer:
Only (I) is true
i) Mass is conserved during a chemical reaction.
Picture 1 and 2 or am I wrong and it's not that obvious.
Answer: they could get a piece of the coral and run tests on it
Explanation:
it would be at either A or B.
Answer:
Explanation:
a) Power consumption is 4100 J/min / 60 s/min = 68.3 W(atts)
work done raised the potential energy
b) 75(9.8)(1000) / (3(3600)) = 68.055555... 68.1 W
c) efficiency is 68.1 / 68.3 = 0.99593... or nearly 100%
Not a very likely scenario.
