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dolphi86 [110]
4 years ago
14

Jeffrey is on his skateboard and starts skating down a ramp. Ten seconds later he is travelling at

Chemistry
1 answer:
AfilCa [17]4 years ago
7 0

Answer: 2m/s^2

Explanation:

Velocity of skateboard = 20.0 m/s.

Time taken = Ten seconds (10 s)

Acceleration ​= ?

Recall that acceleration is the change in velocity of a body per unit time.

i.e Acceleration = (velocity / Time)

Acceleration = 20.0m/s ➗ 10 s

Acceleration = 2m/s^2

Thus, Jeffrey acceleration was 2m/s^2

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If Carl buys a 946 ml bottle of rubbing alcohol, how much of the aqueous solution is water?
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The question is incomplete, here is the complete question:

A bottle of rubbing alcohol having aqueous solution of alcohol contains 70% (v/v) alcohol. If Carl buys a 946 ml bottle of rubbing alcohol, how much of the aqueous solution is water?

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