When oxygen is present, cellular respiration produces carbon dioxide, water, and energy in the form of ATP.
When oxygen is not present, cellular respiration produces lactic acid or alcohol.
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Answer:A game of knock it down.
Explanation:
They’re falling toward earth & moving forward at about the same velocity. because the downward and forward forces are nearly equal, the astronauts are not pulled in any specific direction, so they float . <span>
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It is a supernova that is thought to be a result of a explosion of a carbon-oxygen white dwarf in a binary system.
Answer: 17.5 kN
Explanation:
force downward on student:
mg+142-mv^2/r=0
mg=mv^2/r-142
mv^2/r=mg+142
at bottom, apparent weight
weight=mg+mv^2/r=mg+mg+142
apparent weight= 89(2g)+142
for force at bottom, reverse v^2/r
force=m(g+v^2/r) = 89 ( 9.8 + v^2 / 19 )
F = mg + mv^2 / r
F = mg + mg + 142 = 2mg + 142 = 2 x 89 x 9.8 + 142 = 17.5 kN