Explanation:
Scientist and astronomers have observed that large gas clouds and massive stars are orbiting around in an accelerated manner in center of our galaxy that is milky way. A massive star S2's motion has been studied and it is found that the star is revolving around the center of the galaxy. From this scientist have confirmed presence of super massive black hole of 3 million solar masses lurking around the center of milky way.
Probably because darker colors absorb heat making darker colored clothing warmer than lighter colored clothing
I would say B , not sure if its correct
The wavelength of sound wave with frequency 770 Hz and speed of 290 m/s is equal to 0.3767 m
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Explanation:</h3>
The wave equation determining the relationship between speed, frequency and wavelength of a sound wave is given by:
<u>Speed of sound = Frequency of sound × Wavelength of sound wave</u>
v = n × λ .................................(1)
Given:
v = Speed of sound wave = 290 m/s
n = Frequency of sound = 770 Hz
λ = Wavelength = ?
From (1)
v = n × λ
Rewriting the equation for λ, we get
λ =
Substituting the values of v and n, we get
λ =
Hence, the wavelength of sound wave is equal to 0.3767 m
Keona donates 1 ml of blood 473.176 times.
Each ml of blood has 1.06 gm of mass in it.
So the total mass of the blood is
(1.06 gm/ml) x (473.176 ml) = 501.566 grams
Rounded to the nearest hundredth, that's 501.57 grams.