Recent content by chandangang

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    Giraffe Blood Pressure: Calculating Gauge Pressure at the Brain

    i couldn't properly understand the question. so i couldn't make any significant efforts!
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    Giraffe Blood Pressure: Calculating Gauge Pressure at the Brain

    In a giraffe with its head 2m above its heart , and its heart 2m above its feet, the hydrostatic gauge pressure in the blood at its heart is 250 torr . Assume that the giraffe stands upright and the blood density is 1.06 * 1000kg/cubic metre.In torr find the (gauge) blood pressure at the brain.
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    High School Coefficient of Friction and Normal Force

    Now read this.. When the surface area is reduced , the pressure on the contact points between the two surfaces increases. As a result some contact points undergo deformity in shape and hence more number of contact points are obtained (imagine the contact points to be like mountains if the height...
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    High School Coefficient of Friction and Normal Force

    if area is halved then pressure wud double (force remains same throughout-normal reaction force). could u put forward ur point properly