3 years ago

An example of diffusion in your everyday life

Physics

1 answer:

____ [38]3 years ago

6 0

That's a hard question

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I need help!!!! I don’t understand physical science at all.

allochka39001 [22]

B is the correct answer

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3 years ago

Your heart pumps blood at a pressure of 100 mmHg and flow speed of 60 cm/s. At your brain, the blood enters capillaries with suc

Savatey [412]

Answer:

1.28 m

Explanation:

Generally, pressure of fluid is given by

$P=\rho g h$ where g is acceleration due to gravity, h is the height and $\rho$ is the density

Considering that the pressure for mercury is same as for blood only that the height and density of fluid are different then

$\rho_b g h_b= \rho_m g h_m$

Since g is constant, then

$\rho_b h_b= \rho_m h_m$

Making $h_b$ the subject of the formula then

$h_b=\frac {\rho_m h_m}{\rho_b}$

Where subscripts m and b denote mercury and blood respectively

Assuming density of blood is 1060 Kg/m3, density of mercury as 13600 Kg/m3 and substituting height of mercury for 0.1 m then

$h_b=\frac {13600*0.1}{1060}=1.283018868 m \approx 1.28 m$

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3 years ago

If another vehicle is trying to pass your vehicle,

Vladimir [108]

Answer:

Reduce you're speed, and let the other vehicle pass you

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3 years ago

A window air conditioner that consumes 1.4 kW of electricity when running and has a coefficient of performance of 3 is placed in

Shtirlitz [24]

Answer:

1.4 kJ/s

Explanation:

See attached photo

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3 years ago

True or false?

blsea [12.9K]

Answer:

True

Explanation:

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2 years ago

Read 2 more answers