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sp2606 [1]
3 years ago
8

How does Newton's second law of physics apply to lifting weights?

Medicine
1 answer:
Gnom [1K]3 years ago
8 0

Answer:

C

Explanation:

Whenever we lift weights, we are exerting force against the barbell. In physics, we measure force using Newton's Second Law of Motion via the equation f = ma, or put differently, force is equal to mass multiplied by acceleration. To generate more force, we must either increase mass or acceleration (or both).

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The pO2 of air in an alveolus is ________________ that of the pO2 in deoxygentaed blood in a pulmonary capillary
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Answer:

The correct answer is a. greater than

Explanation:

The partial pressure of oxygen in alveolus is greater than partial pressure of oxygen in deoxygenated blood in a pulmonary capillary and this concentration difference is important for the movement of air(oxygen) from the alveolus to the pulmonary capillary because gases move from higher concentration to lower concentration.

By this process the oxygenated blood reaches to the heart from lungs and heart then pump this oxygenated blood to other body tissues.The partial pressure of oxygen in alveolus is 104 mmHg and in venus blood is 40 mmHg.

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2 years ago
What are some of the events that happen during reporting and investigation processes? Select all that apply.
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Answer:

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Explanation:

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3 years ago
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Answer:

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Explanation:

6 0
2 years ago
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Answer:

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Explanation:

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It is one of the hormones secreted by the adrenal medulla. Norepinephrine is a part of the fight-or-flight mechanism of the body. It acts by binding to the β-1 receptors and opens the chemical or ligand gated calcium and sodium ion channels. Therefore, <u>it causes the threshold to be reached faster </u>by increasing the rate of depolarization and thus causes heart arrhythmia.

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6 0
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