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3 years ago

Identify the statement that correctly describes light and how it travels? (2 points)

2 answers:

8 0

A vacuum implies an absence of any material, not just air. Light has a fixed speed in a vacuum of about 300,000km per second. There is no medium for electromagnetic radiation and the speed is unaffected by a moving source. The notion of the ether as a medium for light was found to be false by experiment. Answer a applies.

schepotkina [342]3 years ago

4 0

Light does not travel at a constant speed in a vacuum, compared to in air, because the light is being absorbed by atoms and molecules in the air. But light does travel at a constant speed in a vacuum.
So I agree with A
All that talk about moving forward is irrelevant (I think)

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What are some advantages of asexual reproduction when compared to sexual reproduction? What are some disadvantages of asexual re

never [62]

Answer:

An additional advantage of asexual reproduction is that colonization of new habitats may be easier when an individual does not need to find a mate to reproduce. During sexual reproduction the genetic material of two individuals is combined to produce genetically diverse offspring that differ from their parents.
A disadvantage is that sexual reproduction takes longer than asexual reproduction. A mate must be found, the egg must be fertilised by sperm, and then the offspring develop. The benefit of introducing genetic variation into the species , however, outweighs this disadvantage.

Explanation:

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2 years ago

What are the 10 element

maw [93]

hydrogen
oxygen
carbon
nitrogen
fluorine
silicone
boron
argon
cobalt
aluminum

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4 0

2 years ago

If we test the solubility of Salt, Sugar, and Epsom Salt then what will dissolve the most

aniked [119]

Answer:

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Explanation:

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2 years ago

Andrews [41]

Answer:

similarities: they both carry a charge

differences:

polyatomic ion- composed of more than one atom

monatomic ion- composed in a single atom.

6 0

3 years ago

Help will give brainliest!!

GarryVolchara [31]

Half reaction :

Oxidation

Cu ⇒ Cu²⁺ + 2e⁻

Reduction

2Ag⁺+ 2e⁻ ⇒2Ag

<h3>Further explanation</h3>

Given

Reaction

Cu+2AgNO₃⇒Cu(NO₃)₂+2Ag

Required

Oxidation and reduction half-reactions

Solution

Oxidation is an increase in oxidation number, while reduction is a decrease in oxidation number.

Oxidation

Cu ⇒ Cu²⁺ + 2e⁻

0 to +2

Reduction

2Ag⁺+ 2e⁻ ⇒2Ag

+1 to 0

6 0

2 years ago