3 years ago

I need this as fast as possible

Physics

1 answer:

Serggg [28]3 years ago

6 0

This is a law because it has been proven correct countless times

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A _______ property of gasoline is that it will _______ in air.

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A chemical property of gasoline is that it will burn in air. Gasoline is a substance that is used to power automobiles. Gasoline will oxidize in air which means that it reacts with oxygen in air. Hope this answers the question. Have a nice day.

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A girl on a spinning amusements park is 12m from the center of the ride and has a centripetal acceleration of 17 m/s^2. What is

Tanya [424]

Answer: 14.28 m/s

Explanation:

Assuming the girl is spinning with uniform circular motion, her centripetal acceleration $a_{c}$ is given by the following equation:

$a_{c}=\frac{V^{2}}{r}$ (1)

Where:

$a_{c}=17 m/s^{2}$ is the centripetal acceleration

$V$ is the tangential speed

$r=12 m$ is the radius of the circle

Isolating $V$ from (1):

$V=\sqrt{a_{c}r}$ (2)

$V=\sqrt{(17 m/s^{2})(12 m)}$

Finally:

$V=14.28 m/s$ This is the girl's tangential speed

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3 years ago

If one half-life is 60 seconds, how old is the sample after 5 half-lives?

yuradex [85]

Answer: 300 years old

Explanation: 60x5=300

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True or false communication is important in healthy relationship

zvonat [6]

Answer:

True

Explanation:

If two partners don't communicate they'll grow apart and it may lead to one or the other cheating.

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The board sandwiched between two other boards shown below weighs 87.5 n. if the coefficient of friction between the boards is 0.

IRINA_888 [86]

Refer to the diagram shown below.

W = 87.5 N, the weight of the sandwiched board.
μ = 0.622, the static coefficient of friction.

From the free body diagram of the sandwiched board, obtain
2μF = W
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Answer: 70.34 N

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