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icang [17]
3 years ago
9

What is the speed of a jet plane that flies 78500 km in 10.5 hours (in km/hr)?

Chemistry
1 answer:
slava [35]3 years ago
4 0
S = d/t

S = 78500/10.5

S = 7,476 Knots
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3 0
3 years ago
Boron has an atomic mass of 10.8 amu. It is known that naturally occurring boron is composed of two isotopes, boron-10 and boron
ANEK [815]
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Abundance of B10 = x
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10.01294x + 11.00931 (1-x) = 10.811
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Check:
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2 years ago
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