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GrogVix [38]
3 years ago
11

Calculate the number of moles in 100g of water​

Physics
1 answer:
dsp733 years ago
5 0

5.55 mol H2O

Explanation:

Water has a molar mass of 18.01528 g/mol. We can then calculate the number of moles of water as

100 g H20 × (1 mol H2O/18.01528 g H20)

= 5.55 mol H2O

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Answer:

X(t) = 9.8 *t - 4.9 * t^2

Explanation:

We set a frame of reference with origin at the hand of the girl the moment she releases the ball. We assume her hand will be in the same position when she catches it again. The positive X axis point upwards.The ball will be subject to a constant gravitational acceleration of -9.81 m/s^2.

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Then the position of the ball as a function of time is:

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5 0
3 years ago
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Hope this helps.
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3 years ago
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