Explain why(a) The blood pressure in humans is greater at the feet than at the brain.(b) Atmospheric pressure at a height of about 6 km decreases to nearly half of its value at the sea level, though the height of the atmosphere is more than 100 km.(c) Hydrostatic pressure is a scalar quantity even though pressure is force divided by area.

Explain why(a) The blood pressure in humans is greater at the feet tha

1.	Explain why(a) The blood pressure in humans is greater at the feet than at the brain.(b) Atmospheric pressure at a height of about 6 km decreases to nearly half of its value at the sea level, though the height of the atmosphere is more than 100 km.(c) Hydrostatic pressure is a scalar quantity even though pressure is force divided by area.
Answer» <html><body><p><strong>Answer:</strong></p><p><strong>Heya </strong><strong>mate </strong><strong>☺ </strong><strong>☺</strong><strong>!</strong><strong>! </strong></p><p><strong>Here </strong><strong>is </strong><strong>ur </strong><strong>answer</strong><strong>.</strong><strong>.</strong><strong>.</strong><strong>. </strong></p><p></p><p></p><p><strong>(a) The <a href="https://interviewquestions.tuteehub.com/tag/height-1017806" style="font-weight:bold;" target="_blank" title="Click to know more about HEIGHT">HEIGHT</a> of the blood column is more for the feet as compared to that for the brain.Consequently, the blood pressure in humans is greater at the feet than at the brain.(b) The <a href="https://interviewquestions.tuteehub.com/tag/variation-1443254" style="font-weight:bold;" target="_blank" title="Click to know more about VARIATION">VARIATION</a> of air-density with height is not linear. So, pressure <a href="https://interviewquestions.tuteehub.com/tag/also-373387" style="font-weight:bold;" target="_blank" title="Click to know more about ALSO">ALSO</a> does not reduce linearly with height. The air pressure at a height h is given by P = P0e–αh where P0 represents the pressure of air at sea-level and α is a constant.(c) Due to applied <a href="https://interviewquestions.tuteehub.com/tag/force-22342" style="font-weight:bold;" target="_blank" title="Click to know more about FORCE">FORCE</a> on liquid, the pressure is transmitted equally in all directions inside the liquid. That is why there is no fixed direction for the pressure due to liquid. Hence hydrostatic pressure is a scalar quantity.</strong></p><p></p><p></p><p></p><p>Hope it helps...</p></body></html>

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