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3 years ago

If a force is applied, but the object does

Physics

1 answer:

sertanlavr [38]3 years ago

5 0

Answer:

doesn't move, no work is done; if a force is applied and the object moves a distance d in a direction other than the direction of the force, less work is done than if the object moves a distance d in the direction of the applied.

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Select the appropriate shape for the given volume form

vredina [299]

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2 years ago

Calculate the difference in blood pressure between the feet and top of the head for a person who is 1.70 m tall.

cupoosta [38]

Answer:

$P_2 - P_1 = 1.8 * 10^4\ Pa$

Explanation:

Given

$Height (h) = 1.70m$

Required

Determine the difference in the blood pressure from feet to top

This is calculated using Pascal's second law.

The second law is represented as:

$P_2 = P_1 + pgd$

Subtract P1 from both sides

$P_2 - P_1 = pgd$

Where

$p = blood\ density = 1.06 * 10^3kg/m^3$

$g = acceleration\ of\ gravity = 9.8N/kg$

$d =height = 1.70m$

P2 - P1 = Blood Pressure Difference

So, the expression becomes:

$P_2 - P_1 = 1.06 * 10^3 * 9.8 * 1.70$

$P_2 - P_1 = 17659.6Pa$

$P_2 - P_1 = 1.8 * 10^4\ Pa$

Hence, the difference in blood pressure is approximately $1.8 * 10^4\ Pa$

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3 years ago

A rubber ball rolls across a level surface.The ball will eventually stop rolling due to

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4 years ago

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