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GuDViN [60]
3 years ago
10

A. What are the three longest wavelengths for standing waves on a 240-cm-long string that is fixed at both ends?

Physics
1 answer:
vovangra [49]3 years ago
5 0

Answer:

a) the three longest wavelengths = 4.8m, 2.4m, 1.6m

b) what is the frequency of the third-longest wavelength = 75Hz

Explanation:

The steps and appropriate formula and substitution is as shown in the attached file.

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200 kW of solar radiation is shining on a 300 m^2 parking lot. What is the insulation on the parking lot?
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That's "<em><u>insolation</u></em>" ... not "insulation".

'Insolation' is simply the intensity of solar radiation over some area.

If 200 kW of radiation is shining on 300 m² of area, then the insolation is

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Note that this is the intensity of the <em><u>incident</u></em> radiation.  It doesn't say anything
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Wait ! 
I just looked back at the choices, and realized that I didn't answer the question
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Wait again !
I found it, through literally several seconds of online research.

           1 sun = 1 kW/m².

So 2/3 of a kW per m²  =  2/3 of 1 sun

That's between 0.5 sun and 1.0 sun.

I feel better now, and plus, I learned something.


7 0
3 years ago
In a bicycle dynamo,does 1. The permanent magnet surrounds a conducting coil 2. The conducting coil rotates when the rear wheel
atroni [7]

Explanation:

3: the electricity is generated in the permanent magnet

7 0
3 years ago
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PLEASE HELP TIMED
Igoryamba

Radio waves have longer wavelengths and lower frequencies than microwaves.

infrared is longer wavelengths and lower frequencies than UV light

5 0
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Which statement accurately describes the relationship between force and momentum?
ivann1987 [24]

Answer:

A.

Explanation:

momentum depends on weight and speed

4 0
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After the same car leaves the platform, gravity causes it to accelerate downward at a rate of 9.8 m/s2. What is the gravitationa
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The gravitational force on the car is

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