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3 years ago

In one hour, coal supplies 500 000 J of energy. The energy amounts to 380 000 J. How much useful energy is produced in one hour?

Physics

1 answer:

Debora [2.8K]3 years ago

5 0

Answer:

120,000J

Corrected question;

In one hour, coal supplies 500 000 J of energy. The wasted energy amounts to 380 000 J. How much useful energy is produced in one hour?

Explanation:

Given;

Total energy Et = 500,000 J

Wasted Energy Ew = 380,000J

The amount useful energy is the amount of energy that is available for supply.

This can be derived by subtracting the wasted energy from the total energy.

Useful energy = Total Energy - wasted energy

Eu = Et - Ew

Substituting the given values;

Eu = 500,000J - 380,000

Eu = 120,000 J

The amount of useful energy produced in one hour is 120,000 J

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A force of 200 N is applied on small piston of a pascal press. What would be the

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Which property of matter is an extensive, rather than an intensive, property of matter?.

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A property known as an extensive property depends on the quantity of materials in a sample. A couple of instances of extensive attributes are mass and volume. A property of matter that is intensive depends solely on the type of matter in a sample and not on the quantity.

<h3>Which of the following is intensive as opposed to extensive?</h3>

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The features that depend on the amount of matter present are referred to as extensive properties. Volume, mass, internal energy, etc. are some examples.

<h3>What are some instances of a substance's extensive and intensive properties?</h3>

Temperature, T, refractive index, n, density, and object hardness are a few examples of intensive attributes. In contrast, subsystems' comprehensive attributes, such as mass, volume, and entropy, are additive. However, not all physical characteristics of matter fit within those categories.

learn more about extensive property and intensive properties here

<u>brainly.com/question/17594097</u>

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1 year ago

One boat tows another boat by means of a tow line, which is under a constant tension of 465 N. The boats move at a constant spee

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Answer:

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