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madam [21]
3 years ago
6

Which statement about activation energy is true? A. It is not affected by catalysts. B. It has no effect on the rate of the reac

tion. C. It is the energy required to break existing chemical bonds. D. It is the same for all reactants.
Physics
2 answers:
Nadusha1986 [10]3 years ago
8 0

Answer:C

Explanation: activation energy is the energy needed to break existing chemical bonds through effective collision

HACTEHA [7]3 years ago
6 0
C it is the energy required to break existing chemical bonds, it is the amount of energy that a reaction requires in order for the reactants to successfully collide and react
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I believe the answer is d
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3 years ago
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A 2.5 kg tribble is placed in a bucket and whirled in a 1.4 m radius vertical circle at a constant tangential speed. If the forc
Over [174]

Given that,

Mass of a tribble, m = 2.5 kg

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v=\sqrt{\dfrac{Fr}{m}} \\\\v=\sqrt{\dfrac{mgr}{m}} \\\\v=\sqrt{{10gr}} \\\\v=\sqrt{10\times 9.8\times 1.4} \\\\v=11.7\ m/s

So, the maximum tangential speed is 11.7 m/s.

8 0
3 years ago
A boy pushes forward a cart of groceries with a total mass of 40.0 kg. What is the acceleration of the cart if the net force on
melisa1 [442]

1.5m/s2

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What is meant by action and reaction
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Explanation:

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