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3 years ago

Which of the following chemical reactions expressed correctly the role of the catalyst in the reaction?

Physics

2 answers:

tatiyna3 years ago

8 0

Answer:

Explanation:

because i know

sergij07 [2.7K]3 years ago

3 0

Answer:

Explanation:

A catalyst starts out with the reactants and winds up with the products. It does not take any part of the reaction. It just lowers the activation energy (usually) making it easier to get from the left side of the equation to the right side.

B is the second best answer, and had you not chosen B and gotten wrong, I think I would have agreed with you.

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Answer:

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Explanation:

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A 30 g particle is undergoing simple harmonic motion with an amplitude of 2.0 ✕ 10-3 m and a maximum acceleration of magnitude 8

KiRa [710]

Answer:

Explanation:

By using the Newton second law and the position equation for a simple harmonic motion we have

$F=ma\\a_{max}=\omega^{2}A\\x=Acos(\omega t+ \phi)\\$

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(a).

$F=ma=m\omega^{2}Acos(\omega t + \phi)\\F=(30*10^{-3}kg)(2*10^{-3}m)(2000\frac{rad}{s})^{2}cos(2000\frac{rad}{s} t - \frac{\pi}{2})=240N*cos(2000\frac{rad}{s} t - \frac{\pi}{2})$

(b). $T=\frac{2\pi}{\omega}=\frac{2\pi}{2000}=3.14*10^{-13} s$

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(d). The mecanical energy is the kinetic energy when the velocity is a maximum

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3 years ago

Read 2 more answers

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