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Rashid [163]
3 years ago
14

3. Silk fibre is obtained from______

Physics
1 answer:
USPshnik [31]3 years ago
8 0

Answer:

Silk fibre is obtained from <u>silkworms</u>

whereas artificial silk is obtained by

chemical treatment of <u>wood pulp/cellulose.</u>

Explanation:

Artificial silk, or rayon, is made from cellulose, obtained from cotton or wood pulp.

So any one of them in 2nd blank is correct.

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Balboa Park in San Diego has an outdoor organ. When the air temperature increases, the fundamental frequency of one of the organ
musickatia [10]

The fundamental frequency of one of the organ pipes will go up or increase.

When pressured air is forced into an organ pipe, it echoes at a particular pitch, generating the sound of the pipe organ. Each pipe has been adjusted to a particular pitch on the musical scale.

A musical instrument called an outdoor pipe organ is used to perform music. It produces some calming tones and has a really serene sound. The organ pipe produces the sound of the outdoor organ. The wavelength of the sound is also dependent on the length of the pipe. The fundamental frequency of one of the organ pipes will grow as the speed of the sound increases as the ambient air temperature rises.

The correct option is (c).

Learn more about frequency here:

brainly.com/question/254161

#SPJ4

6 0
1 year ago
Help! <br><br><br>I'm not sure my answer is correct.<br><br><br>Problem is attached!​
kaheart [24]
  • Let G be xN

\\ \sf\longmapsto x-20=30

\\ \sf\longmapsto x=30+20

\\ \sf\longmapsto x=50N

Option B

3 0
2 years ago
Read 2 more answers
Make I the subject<br> E=VIt
slava [35]

To Make I the subject you need to get it by itself. To do this divide both sides by V and t:

I = E/Vt

5 0
3 years ago
Can anyone help with this physics question
Elza [17]
I think trace 1 is ac and trace 2 if dc but i’m not sure what will happen when a higher frequency is added?
7 0
3 years ago
Anything that causes change must have energy?
Makovka662 [10]
This is a true fact.
Example: An object sitting still in place has energy called potential energy so if an object moving, kinetic energy, and pushes the other object not moving, then the potential energy object will now have kinetic energy; Change.

So, that IS a true fact.

I hope this helped!
8 0
3 years ago
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