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kap26 [50]
3 years ago
7

Need some help :( !!

Chemistry
1 answer:
Ray Of Light [21]3 years ago
6 0
Can you take picture of the whole question? I can’t see.
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What is the wave length of an electromagnetic radiation ,having a frequency of 5.2 x 10^12 Hz? Note: c= 3.00 x 10^8 m/s
olchik [2.2K]

Answer:

\huge{5.77 \times  {10}^{ - 5} m}

Explanation:

The wavelength of a wave can be found by using the formula

\lambda =  \frac{c}{f}  \\

where

c is the speed of the wave

f is the frequency

From the question we have

\lambda =  \frac{3 \times  {10}^{8} }{5.2 \times  {10}^{ 12} }  \\  \\  \\  \\  \large{ = 5.77 \times  {10}^{ - 5} m}

Hope this helps you

7 0
2 years ago
Why is density a characteristic property of an object, but volume is not?
oksano4ka [1.4K]

Answer:

Because density is mass divided by volume and it will always stay the same for a certain substance while mass and volume will always vary.

7 0
3 years ago
Read 2 more answers
system of equations You and your friend are making 30 liters of sodium water. You have liters of 10% sodium and your friend has
vovikov84 [41]

Answer:

X liters of 10% + (30 - x) liters of 22% = 30...

7 0
3 years ago
This question deals with waste disposal in the Solutions and Spectroscopy experiment. What should be done to waste solutions con
Korvikt [17]

Answer:

b. It should be dumped in a beaker labeled "waste copper" on one's bench during the experiment.

d. It should be disposed of in the bottle for waste copper ion when work is completed.

Explanation:

Solutions containing copper ion should never be disposed of by dumping them in a sink or in common trash cans, because this will cause pollution in rivers, lakes and seas, being a contaminating agent to both human beings and animals. They should be placed in appropriate compatible containers that can be hermetically sealed. The sealed containers must be labeled with the name and class of hazardous substance they contain and the date they were generated.

It never should be returned to the bottle containing the solution, since it can contaminate the solution of the bottle.

In the Solutions and Spectroscopy experiments there is always wastes.

3 0
3 years ago
Which structure is located between the auricle and the eardrum? O stirrup O ear canal O auditory nerve Ocochlea​
Damm [24]

Answer:

The structure that is located between the auricle and the eardrum is the ear canal.

Explanation:

The ear canal, or external ear canal, is a a tubular hole about 30 mm long that runs from the auricle to the eardrum, forming part of the external ear.

Its function is to conduct sound, in the form of vibrations, from the outside to the eardrum. It also has the function of producing a viscous secretion called cerumen, capable of trapping dust particles and small foreign bodies.

Other options are not correct because:

  • <em>Stirrup is located in the middle ear, along with the anvil and hammer. </em>
  • <em>Cochlea is in the inner ear and continues with the auditory nerve.</em>

3 0
3 years ago
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