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Ulleksa [173]
3 years ago
7

 I NEED TO KNOW FAST PLZ SOMEONE KNOW THE ANSWER Spiral galaxies usually contain many young stars, so they often have a reddish

tint true or false
Physics
1 answer:
spayn [35]3 years ago
6 0
False. They often have a bluish tint.
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Earth's atmosphere is made up of mostly nitrogen (78%) and oxygen (21%); however, there are other gases in smaller amounts, like
pishuonlain [190]

Answer:

the temperature would increase globally because carbon dioxde contributes to global warming increase the temperature of the earth

Explanation:

i hope this will help you

5 0
3 years ago
Read 2 more answers
Identify the following terms:
anastassius [24]

Answer:

atom -
the smallest particle of a chemical element that can exist.

atomic mass-
the quantity of matter contained in an atom of an element

atomic weight -
ratio of the average mass of a chemical element's atoms to some standard

protons-
stable subatomic particle that has a positive charge equal in magnitude to a unit of electron charge and a rest mass of 1.67262 × 10−27 kg

electrons-
a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids

neutrons-
a subatomic particle of about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen.

energy levels-
one of the stable states of constant energy that may be assumed by a physical system  
[used especially of the quantum states of electrons in atoms and of nuclei. — called also energy state.]

Covalent bonds

the interatomic linkage that results from the sharing of an electron pair between two atoms.

ionic bonds
type of linkage formed from the electrostatic attraction between oppositely charged ions in a chemical compound.

Valence electrons
a single electron or one of two or more electrons in the outer shell of an atom that is responsible for the chemical properties of the atom.

Lewis Dot Diagram
A way of representing atoms or molecules by showing electrons as dots surrounding the element symbol. One bond is represented as two electrons.

4 0
2 years ago
The wavelength of 10^15-Hz light is:
Vanyuwa [196]

Answer:

D.300nm

Explanation:

Wavelength = Speed of light / Frequency of light.....

where the speed of light is...(3 × 10^8)

Wavelength = (3 × 10^8)/(1 × 10^15)

Wavelength = 3 × 10^-7

;Wavelength = 300 × 10^-9

Hence its....300 nm

5 0
2 years ago
Someone please help! It is a few science questions. Fairly easy!
borishaifa [10]
1) 0.92 * 100 = 92 <Solve using the formula which is:
Mass=Density×Volume
M=D*V

2) 3.98 ml

3) V=L*W*H (Length  × Width × Height)

5*2*4=40
\frac{300}{40} =7.5 (Answer=7.5)
3 0
3 years ago
Read 2 more answers
A car accellerates from 12.0 m/s to 18 m/s in 4 seconds. What distance did it travel in this time?
Alona [7]

Answer:

Just go broom broom on ya teacher

Explanation:

cause why not

6 0
3 years ago
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