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Arisa [49]
3 years ago
11

The first American to orbit the earth was:

Physics
2 answers:
Brums [2.3K]3 years ago
8 0

Yes, John Glenn was the first to orbit the earth but the question I read was who WALKED ON THE MOON.....the answer to who was the FIRST to walk on the moon... is  Neil Armstrong but Buzz Aldrin also walked and was there with Armstrong but wasn't the first.  You have to be careful about the astronaut 'firsts'.  Alan Shepherd was the first in space....John Glenn was the first to orbit the earth....Edward White was the first to 'walk in space' and Neil Armstrong was the first man to walk on the moon. Also remember that all of these were American Astronaut firsts.  The Russians actually put up the first man in space.  Yuri Gagarin was the first man.  Buzz Aldrin landed and walked on the moon also.

alexdok [17]3 years ago
3 0
John Glenn is the first American to orbit the Earth.

<span>♡♡Hope I helped!!! :)♡♡
</span>
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True or False: As distance between 2 objects increases, the gravitational force decreases
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Answer:

True

Explanation:

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3 years ago
What are tectonic plates, and which of Earht's layers are they composed of?
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3 0
3 years ago
A bus travelling 30.0 km/h east has a constant increase in speed of 1.5 m/s. What is its velocity 6.8s later
alekssr [168]

Answer:

8.72 seconds before

Explanation:

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7 0
3 years ago
A spectral line from a star is observed to have a wavelength of 656.5 nm. The rest wavelength of this line is 656.8 nm. (a) What
nignag [31]

Answer:

speed of star is  1.37 × 10^{5} m/s

it is approaching to earth because wavelength of star is decreasing than rest

if emit same wavelength it does not move anywhere

it will remain steady condition with respect earth

Explanation:

given data

wavelength = 656.5 nm

rest wavelength = 656.8 nm

to find out

the speed of the star , is it approaching

solution

we know here equation that is

wavelength shift / wavelength at rest  = velocity of source / speed of light

so put all value and find

velocity of source = 3 × 10^{-9} × 3 × 10^{8} / 656.8 × 10^{-9}

velocity of source star = 1.37 × 10^{5} m/s

and

it is approaching to earth because wavelength of star is decreasing than rest

and

if emit same wavelength it does not move anywhere

it will remain steady condition with respect earth

6 0
3 years ago
How can you prove that air contains carbon dioxide?​
pickupchik [31]

Answer:

Limewater can be used to detect carbon dioxide. If carbon dioxide is bubbled through limewater then it turns from clear to cloudy/milky in colour. This is why limewater used in a simple respirometer can show that more carbon dioxide is present in exhaled air compared to inhaled air.

Explanation:

4 0
3 years ago
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