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ElenaW [278]
3 years ago
5

Helium was discovered on earth years after it had been discovered on the sun.

Geography
1 answer:
Zinaida [17]3 years ago
3 0
The statement is true.
As weird as it may sound, helium was indeed first discovered on the Sun, and after some time on Earth. The first evidence of helium was observed on August 18 1868, as a bright yellow line with a wavelength of 587.49 nanometers in the spectrum of the Sun's chromosphere. This line has been detected by a French astronomer by the name of Jules Janssen during a total solar eclipse in Gantur, India. 
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Dafna11 [192]
Hello.

Some cities are densley populated becasue were they are located.

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Have a nice day
4 0
3 years ago
Which has a greater effect on the volume? Changing the radius by a given amount or changing the height by the same amount?
kherson [118]

doubling the radius will have a greater effect

v of cylinder=pi x square of radius x hieght

lets take an example,r=2,h=2

v=8pi

doubling the hieght,h=4

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doubling the radius,r=4

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5 0
3 years ago
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notka56 [123]

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This example is indicative of doubling in size.

5 0
3 years ago
It’s wrong our correct yes
Anastaziya [24]

Answer:

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Explanation:

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Explanation:

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7 0
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