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Naya [18.7K]
3 years ago
12

The angle of incidence and the angle of reflection are measured from the_____, the perpendicular to the surface.

Physics
1 answer:
kogti [31]3 years ago
6 0

I believe it is angles

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The value of relative humidity becomes 100% leading to condensation of water vapor in the air into water droplets or water (dew)
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what is the value of the constant for a second order reaction if the reactant concentration drops from .657 M to ,0981 M in 17 s
yaroslaw [1]

Answer : The value of the constant for a second order reaction is, 0.51M^{-1}s^{-1}

Explanation :

The expression used for second order kinetics is:

kt=\frac{1}{[A_t]}-\frac{1}{[A_o]}

where,

k = rate constant = ?

t = time = 17s

[A_t] = final concentration = 0.0981 M

[A_o] = initial concentration = 0.657 M

Now put all the given values in the above expression, we get:

k\times 17s=\frac{1}{0.0981M}-\frac{1}{0.657M}

k=0.51M^{-1}s^{-1}

Therefore, the value of the constant for a second order reaction is, 0.51M^{-1}s^{-1}

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3 years ago
When two equal forces act on the same object in opposite directions, what is the net force?
sertanlavr [38]

Answer:

0

Explanation:

Forces with equal magnitudes and opposite directions cancel each other out, so the net force is 0.

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earnstyle [38]

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Example:

Speed of sound in normal air . . . around 340 m/s

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3 years ago
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