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4 years ago

11

Why does a person have to eat three or more meals a day?

2 answers:

Art [367]4 years ago

8 0

Answer:

Three meals spread throughout the day provide your body with essential energy and nutrients and help keep you focused and less irritable. Spreading meals through the day also helps with the efficient digestion and absorption of foods and maintains stable blood sugar levels.

slamgirl [31]4 years ago

3 0

Answer:

in order to be healthy and to keep the body nutritionally fit

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At the surface, atmospheric pressure is 1.013 × 10^5 Pa. People can normally snorkel down to a depth of roughly one meter. What

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Answer:

1.01 × 10⁵ Pa

Explanation:

At the surface, atmospheric pressure is 1.013 × 10⁵ Pa.

We need to find the total pressure on the air in the lungs of a person to a depth of 1 meter.

Pressure at a depth is given by :

$P=\rho gh$

Where

$\rho$ is the density of air, $\rho=1.225\ kg/m^3$

So,

$P=1.225\times 9.8\times 1\\\\=12\ Pa$

Total pressure, P = Atmospheric pressure + 12 Pa

= 1.013 × 10⁵ Pa + 12 Pa

= 1.01 × 10⁵ Pa

Hence, the total pressure is 1.01 × 10⁵ Pa.

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