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zubka84 [21]
3 years ago
15

A 80-kg person sits on a 2.7kg chair. Each leg of the chair makes contact with the floor on a circle that is 1.3 cm in diameter.

Find the pressure exerted on the floor by each leg of the chair, assuming that the weight is evenly distributed.
Physics
2 answers:
Rashid [163]3 years ago
6 0

Answer:

need help with this 2

Explanation:

pls hellp

riadik2000 [5.3K]3 years ago
4 0

Explanation:

Assuming the chair has four legs,

Area = (πr²)

        = 1.33 m²

Pressure = Force/Area

               = 827/1.33

               = 621.8 Pa

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How does the resultant displacement change as the angle between two vectors increases from 90° to 120°?
user100 [1]

The resultant displacement between the two vectors will increase.

The resultant of the two vectors is given by parallelogram law of vectors.

The parallelogram law of vector addition states that if two vectors are represented in magnitude and direction by the adjacent sides of a parallelogram, the diagonal of the parallelogram drawn from the point of intersection of the vectors represents the resultant vector in magnitude and direction.

The resultant of these vectors, say vector A, and B, is given as;

R^2 = a^2 + b^2 -2ab.Cos (\theta )

When;

θ = 90°

R^2 = a^2 + b^2

When;

θ = 120°

R^2 = a^2 + b^2 + ab

Thus, the resultant displacement between the two vectors will increase.

Learn more here: brainly.com/question/20885836

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2 years ago
In an experiment what are all the parts of an experiment that remain unchanged are called<br>​
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ahrayia [7]

Answer: Option (b) is the correct answer.

Explanation:

The force of gravity acting on an object helps in determining the weight of an object. But a place where there will be no gravity or have zero gravitational pull then it means the person will be weightless.

For example, force of gravity on moon is zero which means any object or person on moon will be weightless.

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