3 years ago

PLEASE HELP!!!!! NEED THE ANSWER FAST!!!

1 answer:

6 0

The answer is a. <span>changes in nucleotides of a DNA molecule that affect the genetic message.</span>

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WINSTONCH [101]

Answer:

D. Error is in sentence 1. The beam was a cathode ray.

Explanation:

Legit just looked up his experiments and it said right off the bat he studied cathode rays not gamma.

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3 years ago

Gre4nikov [31]

The correct answer is C

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3 years ago

Simora [160]

B) A chemical change because the nail reacts with water/oxygen to create rust (a type of oxide)

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3 years ago

kati45 [8]

<h2>Frequency</h2>

Explanation:

Wave frequency is the number of waves that pass a fixed point in a given amount of time.

Wave speed is the speed at which a wave travels.

Let the wave speed be $v$

Let the wave frequency be $f$

Let the wave length be $l$

The wave speed,frequency and wave length are related by the equation $v=f\times l$ .

When $v$ increases, $f$ increases on the other side to maintain equality when no other property is changing.

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3 years ago

choli [55]

Answer:

moles = 36/180 = 0.2 moles

molarity = 0.2/2 = 0.1 mol/dm3

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2 years ago