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Strike441 [17]
3 years ago
11

What is the ability to react with air

Physics
2 answers:
Nutka1998 [239]3 years ago
7 0
It reacts slowly with sulfur compounds, not 100 percent sure but I remember that many chemicals like this are an example
Bond [772]3 years ago
3 0
Reactivity is the answer
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A hypothesis is a basically a theory proposed to a subject or refrence to an act with limited evidences.

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The period of a pendulum is measured 16 times. The average value of the period over these 16 trials is calculated to be 1.50 sec
marin [14]

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The additional trials needed is 48 trials

Explanation:

Given;

initial number of trials, n = 16 trials

the standard deviation, σ = 0.24 s

initial standard error, ε = 0.06 s

The standard error is given by;

\epsilon = \frac{\sigma}{\sqrt{n} }

To reduce the standard error to 0.03 s, let the additional number of trials = x

0.03= \frac{0.24}{\sqrt{n+x} } \\\\0.03= \frac{0.24}{\sqrt{16+x} }\\\\0.03\sqrt{16+x} = 0.24\\\\\sqrt{16+x} = \frac{0.24}{0.03} \\\\\sqrt{16+x} = 8\\\\16+x = 8^2\\\\16+x = 64\\\\x = 64 -16\\\\x = 48 \ trials

Therefore, the additional trials needed is 48 trials.

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