Definition: In any chemical process, matter is neither lost nor gained.

Physics

1 answer:

kolbaska11 [484]2 years ago

7 0

Answer: Conversation of Matter

Explanation: According to Quizlet, Converstion of Matter is the answer.

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A 60kg student traveling in a 1000kg car with a constant velocity has a kinetic energy of 1.2 x 10^4 J. What is the speedometer

777dan777 [17]

Answer:

17.64 km/h

Explanation:

mass of car, m = 1000 kg

Kinetic energy of car, K = 1.2 x 10^4 J

Let the speed of car is v.

Use the formula for kinetic energy.

$K = \frac{1}{2}mv^{2}$

By substituting the values

$1.2\times 10^{4} = \frac{1}{2}\times 1000\times v^{2}$

v = 4.9 m/s

Now convert metre per second into km / h

We know that

1 km = 1000 m

1 h = 3600 second

So, $v = \left (\frac{4.9}{1000} \right )\times \left ( \frac{3600}{1} \right )$

v = 17.64 km/h

Thus, the reading of speedometer is 17.64 km/h.

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In three sentences, please describe SIMPLE HARMONIC motion, and give two examples. Thank you! :-)

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The planet is represented as Saturn ♄

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