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svet-max [94.6K]
3 years ago
12

Which trends is indirectly proportional to effective nuclear charge

Physics
1 answer:
Minchanka [31]3 years ago
4 0

Answer:

Atomic size

Explanation:

In the periodic table , atomic size is indirectly proportional to the effective nuclear charge .the atomic size reduces from left to right across the table. This is because electrons are added to the same shell.

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What is the unit of work? *<br> A. Joule<br> B. Newton/meter<br> C. Watt<br> D. All of the above
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Black widow (m=57000 g) shovels snow, holding the shovel at a 40 degree angle above the ground. If she uses a constant force of
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Answer:

She does a work of 689.44 J in the snow.

Explanation:

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In other words, Work is a form of energy transmission between bodies. In order to carry out work, a force must be exerted on a body and it must move.

The work is equal to the product of the force times the distance and the cosine of the angle that exists between the direction of the force and the direction that the moving point or object travels:

W= F*d* cos Ф

Work W is measured in joules (J), force is measured in newtons (N), and displacement in meters (m).

In this case:

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Replacing:

W= 180 N*5 m* cos 40

Solving:

W= 689.44 J

<u><em>She does a work of 689.44 J in the snow.</em></u>

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