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mr_godi [17]
3 years ago
9

A ball is thrown straight up into the air with a speed of 13 m/s. If the ball has

Chemistry
1 answer:
nataly862011 [7]3 years ago
5 0

Answer:

The total energy, i.e. sum of kinetic and potential energy, is constant.

i.e. E = KE + PE

Initially, PE = 0 and KE = 1/2 mv^2

At maximum height, velocity=0, thus, KE = 0 and PE = mgh

Since, total energy is constant (KE converts to PE when the ball is rising),

therefore, KE = PE 

or, 1/2 mv^2 = mgh

or, h = v^2 /2g = 13^2 / (2x9.8) = 8.622 m

Hope this helps.

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The answer is: the mass of carbon is 420.6 grams.

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When a barium atom loses two electrons what charge does it have
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It becomes a positive ion and its radius decreases

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