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Shkiper50 [21]
3 years ago
7

In which situation is the object experiencing balanced forces? A) A girl swings on a swing at the playground. B) A car brakes as

it approaches a traffic light. C) A sled speeds up as it slides down a snow-covered hill. D) A sky diver reaches terminal velocity when he stops accelerating.
Biology
2 answers:
JulsSmile [24]3 years ago
5 0
<h3><u>Answer;</u></h3>

D) A sky diver reaches terminal velocity when he stops accelerating.

<h3><u>Explanation;</u></h3>
  • <em><u>Balanced forces are forces that act in opposite directions and are equal in size. </u></em>When an object is acted upon by unbalanced forces then the object stays still or at rest or continues moving at a constant velocity in the same direction.
  • Unbalanced forces cause an object or a body to change its motion or velocity and direction.
  • <u><em>A sky diver who reaches terminal velocity when he stops accelerating, experiences balanced forces. Terminal velocity being a point at which the drag force is equal to the force of gravity.</em></u>
morpeh [17]3 years ago
4 0
D) A sky diver reaches terminal velocity when he stops accelerating.
F = mass*gravity = Force of air resistance pushing up on the person
<span>Reached terminal velocity = acceleration = zero </span>
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Answer:

The correct option is option D which is  10 – 1 molecule of Oxaloacetate (OAA) is regenerated for every molecule of Acetyl-Coenzyme (AcCoA) used.

Explanation:

As the complete question is not given, the complete question is as below

Imagine that I start off with 10 molecules of oxaloacetate in a mitochondria. After running the TCA to generate 20 molecules of CO2, how many molecules of oxaloacetate will be left in the mitochondria (assuming oxaloacetate is being used only for TCA in these mitochondria)?

A) 30 – each molecule of CO2 generated corresponds to an increase of one OAA

B) 20 – every two molecules of CO2 generated corresponds to an increase of one OAA

C) 0 – two molecules of CO2 generated corresponds to one AcCoA used in the TCA; each AcCoA requires one molecule of OAA

D) 10 – one molecule of OAA is regenerated for every molecule of AcCoA used

Each cycle of TCA result in consumption of 1 Acetyl-Coenzyme (AcCoA) and 1 Oxaloacetate (OAA) molecule to give rise to 3 molecules of NADH and 2 molecules of CO2 per cycle. But at the end of each cycle, OAA molecule is regenerated. So the number of oxaloacetate(OAA) molecules remains unchanged.

Thus the correct option is option D which is  10 – 1 molecule of Oxaloacetate (OAA) is regenerated for every molecule of Acetyl-Coenzyme (AcCoA) used.

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Answer:

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Explanation:

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The term differential reproductive success is suggests that comparing and analyzing successful reproduction rates between groups statistically which means how many individuals of the population left behind due to not inheriting traits require for survival.

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