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Serga [27]
3 years ago
11

The velocity of blood flow is ________. A) in direct proportion to the total cross-sectional area of the blood vessels B) slower

in the arteries than in capillaries because arteries possess a relatively large diameter C) slower in the veins than in the capillaries because veins have a large diameter D) slowest in the capillaries because the total cross-sectional area is the greatest
Physics
1 answer:
Leto [7]3 years ago
5 0

Answer:

Option (D)

Explanation:

The velocity at which blood flows in the blood vessels is inversely proportional to the total cross-sectional area of the blood vessels present in the body. This means that if the cross sectional area of the vessels low, then there will be high rate of blood flow, and vice versa. This blood flow is minimum in the case of capillaries, where it gets enough time for the exchanging of essential nutrients as well as gases.

Thus, the correct answer is option (D).

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Answer:

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Explanation:

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4 years ago
How many photons are absorbed during the dental x-ray?
MariettaO [177]
<span>E=hc/wav. len
E = (6.62 x 10^-34 x 3 x 10^8)/0.0275 x 10^-9
E = 7.22182 x 10^-15 J
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E = 7.22182 x 10^-15/1.6 x 10^-19 eV
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Number of photons, n = total energy/ energy of photon
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8 0
3 years ago
Define acceleration what it's formula​
Paha777 [63]

Answer:

The definition of acceleration is a change in the rate of motion, speed or action.

<h2>hope it helps.</h2><h2>stay safe healthy and happy..</h2>

4 0
3 years ago
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A uniform magnetic field passes through a horizontal circular wire loop at an angle 15.1° from the normal to the plane of the lo
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Answer:

0.5849Weber

Explanation:

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Given

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Substitute the given values into the formula:

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3 years ago
Scientist do their work by using inquiry. Inquiry is:
lana [24]

Answer:

an act of asking for information.

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4 years ago
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