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Luba_88 [7]
2 years ago
12

A woman is applying 300N/m2 of pressure on to door with her hand. Her hand has area of 0.02m2. Work out the force being applied​

Physics
1 answer:
never [62]2 years ago
8 0

Answer:

6N

Explanation:

Given parameters:

Pressure applied by the woman  = 300N/m²

Area = 0.02m²

Unknown:

Force applied  = ?

Solution:

Pressure is the force per unit area on a body

        Pressure  = \frac{force}{area}

         Force  = Pressure x area

        Force  = 300 x 0.02  = 6N

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The boom hoisting sheave must have pitch diameters of no less than _______times the nominal diameter of the rope used.
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Water flowing through a cylindrical pipe suddenly comes to a section of pipe where the diameter decreases to 86% of its previous
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Answer:

Explanation:

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1 year ago
Consider a spring that does not obey Hooke’s law very faithfully. One end of the spring is fixed. To keep the spring stretched o
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Answer:

a) W=-0.0103125\ J

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b=700\ N.m^{-2}

c=12000\ N.m^{-3}

x when the spring is stretched

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W=0.5\times 4.75\times (0.05)^2

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c)

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