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matrenka [14]
3 years ago
14

A box is against a wall. A person pushes on the box, but the box does not move. Is this

Physics
2 answers:
Serhud [2]3 years ago
7 0

Answer:

it is a force

Explanation:

a force is a push or a pull

Levart [38]3 years ago
4 0

Answer:

Yes, this is an example of a force because a force is a push or pull

Explanation:

Since the person is adding force to push the box.

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4 years ago
A 10.0 L tank contains 0.329 kg of helium at 28.0 ∘C. The molar mass of helium is 4.00 g/mol . Part A How many moles of helium a
nadya68 [22]

Answer:

82.25 moles of He

Explanation:

From the question given above, the following data were obtained:

Volume (V) = 10 L

Mass of He = 0.329 Kg

Temperature (T) = 28.0 °C

Molar mass of He = 4 g/mol

Mole of He =?

Next, we shall convert 0.329 Kg of He to g. This can be obtained as follow:

1 Kg = 1000 g

Therefore,

0.329 Kg = 0.329 Kg × 1000 g / 1 Kg

0.329 Kg = 329 g

Thus, 0.329 Kg is equivalent to 329 g.

Finally, we shall determine the number of mole of He in the tank. This can be obtained as illustrated below:

Mass of He = 329 g

Molar mass of He = 4 g/mol

Mole of He =?

Mole = mass / molar mass

Mole of He = 329 / 4

Mole of He = 82.25 moles

Therefore, there are 82.25 moles of He in the tank.

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3 years ago
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A manager at a local bank analyzed the relationship between monthly salary and three independent variables: length of service (m
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a

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