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snow_lady [41]
2 years ago
6

Can someone please give me a testable question for Oxygen. I cant think of one for the life of me.

Physics
1 answer:
alexandr1967 [171]2 years ago
3 0

Answer:

Explanation:

You could test effect of oxygen levels on growth of a regular houseplant. You could make the control to be plant grown under regular atmospheric Oxygen level. And for changing variables you could have one plant grow at low oxygen level compared to atmospheric oxygen and another plant to grow at higher levels of oxygen when compared to atmospheric oxygen.

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3 years ago
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Car B starts at point X and moves clockwise around a circular track at a constant rate of 2 mph. Ten hours later, Car A leaves f
stealth61 [152]

Answer:

20.96 h

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From here, we can express the distance of A from X like this:

xa = 3t

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The time t where they would passed each other and put  12 miles between them would be the one where xa - xb is equal to 12:

xa - xb = 12

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t = 20.96h

4 0
3 years ago
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Answer:

1 \times 10 { - }^{9}

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