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ASHA 777 [7]
3 years ago
9

In a free fall experimate you determine the value of acceleration due to gravity (g) to be 9.50 m/s2 . The accepted value is 9.8

1 m/s2 . What your percent error?
Physics
1 answer:
lisov135 [29]3 years ago
3 0

If the value 9.81 is correct, then your error is (-0.31).

As a fraction of the correct value, your error is  (-0.31)/(9.81) .

That's -0.0316,  or  -3.16 percent .

By the way ... LAST time somebody posted this same question on Brainly, he was nice enough to also let us see the list of choices.

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if the intensity of a person's voice is 4.6 x 10^-7 w/m^2 at a distance of 2.0 m, how much sound power does that person generate
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The sound power the person generated is 2.313 \times 10^{-5} \ W.

<h3>Area of the sound wave</h3>

The area of the sound wave is calculated as follows;

A = 4\pi r^2\\\\A = 4 \pi \times (2)^2\\\\A = 50.272 \ m^2

<h3>Power generated</h3>

The sound power the person generated is calculated as follows;

P = I A\\\\P = 4.6\times 10^{-7} \ W/m^2 \ \ \times \ \ 50.272 \ m^2\\\\P = 2.313 \times 10^{-5} \ W

Learn more about intensity of sound here: brainly.com/question/4431819

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