3 years ago

Which is not true about the pH scale?

Physics

2 answers:

pochemuha3 years ago

4 0

Answer:

The pH scale was invented by Svante Arrhenius is false.

Explanation :

because the pH scale was invented by Soren Sorensen

tester [92]3 years ago

3 0

Hello school i points are the correct spelling.

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A rocket is fired at 100 m/s at an angle of 37, what was its speed at the top of its path?

Nadusha1986 [10]

Answer:

0m/s

Explanation:

Since its fired at an angle, at the top there will be a split second where the velocity will be 0, as it has a parabolic shape, so the speed at the top of its path is 0

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2 years ago

Which way does heat travel? Explain your answer.

Archy [21]

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3 years ago

An ore car of mass 39000 kg starts from rest and rolls downhill on tracks from a mine. At the end of the tracks, 19 m lower vert

cupoosta [38]

Answer:

The compression in the spring is 5.88 meters.

Explanation:

Given that,

Mass of the car, m = 39000 kg

Height of the car, h = 19 m

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$mgh=\dfrac{1}{2}kx^2$

x is the compression in spring

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So, the compression in the spring is 5.88 meters.

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3 years ago

The waves with the lowest energy and lowest frequencies of the electromagnetic spectrum are the

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<span>The waves with the lowest energy and lowest frequencies of the electromagnetic spectrum are the "Radio waves"

So, option B is your answer

Hope this helps!
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3 years ago

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Answer:

Explanation:

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2 years ago