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Tasya [4]
2 years ago
9

Pretty cool, the atoms that exist in your body are some of the same atoms that have existed since the beginning of the universe.

You are made of star stuff. What scientist made this observation?
1) Neil Degrasse Tyson

2) Albert Einstein

3) Carl Sagan
Physics
2 answers:
marusya05 [52]2 years ago
8 0

Answer:

was is carl sagan?

Explanation:

please forgive me if im wrong :(

Karo-lina-s [1.5K]2 years ago
8 0

Answer:

Your answer is option 3

Explanation:

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The surface of the Sun has a temperature of about 5 800 K. If the radius of the Sun is 7 × 108 m, determine the power output of
Nimfa-mama [501]

Answer:

a. 3.95\times10^{26}W

Explanation:

T = temperature of the surface of sun = 5800 K

r = Radius of the Sun = 7 x 10⁸ m

A = Surface area of the Sun

Surface area of the sun is given as

A = 4\pi r^{2} \\A = 4(3.14) (7\times10^{8})^{2}\\A = 6.2\times10^{18} m^{2}

e = Emissivity = 1

\sigma = Stefan's constant = 5.67 x 10⁻⁸ Wm⁻²K⁻⁴

Using Stefan's law, Power output of the sun is given as

P = \sigma e AT^{4} \\P = (5.67\times10^{-8}) (1) (6.2\times10^{18}) (5800)^{4}\\P = 3.95\times10^{26} W

4 0
3 years ago
According to Hooke's law
SOVA2 [1]

Answer:

According to Hook's law, we know,

strain/stress =Constant

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7 0
2 years ago
What gives the gem amethyst it's purplish color?
-Dominant- [34]
  i think its iron... 
<span>Presence of trace elements, irradiation and iron impurities give the gem its purplish color . 
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3 0
2 years ago
A student puts a strip of litmus paper into a solution and the paper becomes red in color. What does this tell you about the sol
natita [175]
Litmus paper turns red under acidic conditions. Hope this helped!
3 0
3 years ago
When your peers see you doing good work, they may feel motivated themselves. What are some othe
lora16 [44]

Answer:

1. friends getting you to study

2. leading you to make the right decision

3. giving you advice pushing you towards whats right

4. pressuring you to be a good person

5. telling you when in the wrong  

Explanation:

all of these are ways of positive peer pressure

4 0
2 years ago
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