What do Oxygen and Fluorine do to do Copper?

1 answer:

4 0

It corrodes the copper by oxydation

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Mama L [17]

Answer:

The speed of the raindrop is 11.55 m/s.

Explanation:

We need to find the speed of the rain in the "y" direction. We have:

$v_{r}$ : speed of the raindrop at 60° (vertical) =?

$v_{c}$ : speed of the car = 20 m/s (in the "x" direction)

Hence, the speed of the car and the speed of the raindrop are related by:

$tan(\theta) = \frac{v_{c}}{v_{r}}$

$v_{r} = \frac{v_{c}}{tan(60)} = \frac{20}{tan(60)} = 11.55 m/s$

Therefore, the speed of the raindrop is 11.55 m/s.

I hope it helps you!

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3 years ago

Ipatiy [6.2K]

I'm doing this test later today so I'll let you know the answer

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3 years ago

saul85 [17]

Answer:

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Explanation:

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2 years ago

Assoli18 [71]

<h3><u>Answer;</u></h3>

Frequency

<h3><u>Explanation;</u></h3>

<em><u>Waves are disturbances that travel through a material medium. There are several characteristics of waves, which includes; wavelength, frequency, period and amplitude. </u></em>
Amplitude is the maximum displacement of wave particles, or simply the height of the wave, measured in meters.
Wavelength is the distance between adjacent crests or troughs in a transverse wave or between two successive rarefaction or compressions in a longitudinal wave, measured in meters.
Period is the time it takes for one complete wave to pass a given point, measured in seconds.
<em><u>Frequency is the number of complete waves or cycles that pass a point in one second, measured is inverse seconds, or Hertz (Hz).</u></em>

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3 years ago

ruslelena [56]