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raketka [301]
3 years ago
8

If

Physics
1 answer:
Veronika [31]3 years ago
7 0

Answer:

if what

ha ha

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A lever is being used to move a heavy stone from a garden. The stone weighs 250 newtons. The board used as a lever is 6 meters l
DerKrebs [107]

Answer:

Force = 125 [N]

Explanation:

In the attached image we can see a sketch of the lever system.

And if we make a sum of moments at the point O equal to zero (0).

In the equation showed in the image, we can determinate the force that we need

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3 years ago
How much must a woman weigh ( force) if the pressure she exerts while standing on one foot has an area of 0.6m squared exerts a
lions [1.4K]

Answer:

W = 9.6 N

Explanation:

Given that,

Area on 1 foot, A = 0.6 m²

Pressure, P = 16 Pa

The pressure is given by force acting per unit area. So,

P=\dfrac{F}{A}\\\\P=\dfrac{W}{A}\\\\W=16\times 0.6\\\\W=9.6\ N

So, the required weight is 9.6 N.

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3 years ago
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?

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Why are chemical changes considered “unseen”?
jeka57 [31]
<span>Because they occur at an atomic level, changing the actual structure of the thing.

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Your answer is correct. No problem and Have a nice day
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