What is a substance that when mixed with water turns blue litmus paper red

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Answer 1

Answer: when blue litmus paper is dipped in acid the paper turns red.

hope this helps :)

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Please explain the method of making electricity from non renewable sources like coal?

Answers

the coal is urned to heat up water. this produces steam. the steam turns a turbine that turns a generator which provided energy yhat can be transferred into electrisity

14. Cost is an example of_in designing a product.
O a solution
O a constraint
O an idea
O a trade-off

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It is an example of a constraint as if you are unable to meet the amount of purchasing power required to obtain a product, you will be unable to acquire said product, thus constraining you.

Answer: constraintnp

What is a dyne? Please help me

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The dyne is the unit of force in a system of units related to SI units.

The SI unit of force is 1 newton = 1 kilogram-meter/sec² .

Using centimeters and grams instead of meters and kilograms,

1 dyne = 1 gram-centimeter/sec² .

1 newton of force = 100,000 dynes of force

If nothing is faster than light, how did the dark get there first?

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say you were in a dark room and you turned on a flashlight ..the darkness was already there to begin with. the flashlight would fill the room with the speed of light.

When was the copernican treatise published

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they were published in 1542.

which section from thr article best explains why wavelength and frequency are dependent on each other

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Frequency is inversely proportional to wavelength.

Explanation:

Frequency

Frequency in physics is defined as the total number of waves that pass in the given system.

Wavelength

Wavelength is the distance between two successive crest or two successive trough.

Frequency and wavelength of a particular wave is related with each other. The wavelength decreases as the frequency increases.

In mathematical term:

frequency ∝ $(1)/(wavelength)$