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AysviL [449]
3 years ago
14

Which terms describes elements with different atomic masses due to varying numbers of neutrons?

Physics
2 answers:
fgiga [73]3 years ago
8 0
Isotopes, a...............
mrs_skeptik [129]3 years ago
4 0

: Isotopes

~Sarah Robinsen

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A cat’s crinkle ball toy of mass 15g is thrown straight up with an initial speed of 3m/s . Assume in this problem that air drag
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Answer:

(a)0.0675  J

(b)0.0675 J

(c)0.0675 J

(d)0.0675 J

(e)-0.0675 J

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Explanation:

15g = 0.015 kg

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E_k = \frac{mv^2}{2} = \frac{0.015*3^2}{2} = 0.0675  J

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(c) The change in potential energy would also be the same as 0.0675J in accordance with conservation law of energy.

(d) The gravitational energy at peak point would also be the same as 0.0675J

(e) In this case as the reference point is reversed, we would have to negate the original potential energy. So the potential energy as the ball leaves hand is -0.0675J

(f) Since at the maximum height the ball has potential energy of 0.0675J. This means:

mgh = 0.0675

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h = 0.459 m

The ball would reach a maximum height of 0.459 m

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