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allochka39001 [22]
2 years ago
12

In a chemical reaction, the bonds in the molecules

Physics
2 answers:
notsponge [240]2 years ago
6 0

Answer:

B. change

Explanation:

In a chemical reaction, the bonds in the molecules break apart and form new ones, thus b is the correct answer because they change.

shutvik [7]2 years ago
4 0
The answer is b (change)
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<u>Option: D</u>

<u>Explanation:</u>

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3 years ago
A shopping cart rolls from x=19.9m to x=5.40m with an average velocity of -0.418m/s. How much time did it take? (unit=s)
andrew11 [14]

Given

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it shows displacement is reverse.

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t = ( 5.4-19.9) / (-0.418)

t = (-14.5 ) / (-0.418)   (-ve sign cancel out at numerator and denominator)

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8 0
3 years ago
After release of jet, energy is lost by the engine. How principle of conservation of energy is obeyed in this condition.​
HACTEHA [7]

Answer:

The principle of conservation of energy states that in a closed system, the energy can neither be created nor destroyed between interacting particles and remains constant or transformed from one form to another

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Explanation:

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seropon [69]

Answer:

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The expansion of the observable universe began <span>with the explosion of a single particle at a definite point in time.</span>
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