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Vikentia [17]
2 years ago
7

A scientist noticed that a dark-colored peppered moth is more visible on a light-colored background than a light-colored peppere

d moth. He wonders, “Does this difference in visibility affect the survival rate of dark moths?” Which part of the scientific method does he need to carry out next?
Physics
2 answers:
nika2105 [10]2 years ago
7 0

Answer:

<h2>the correct simple answer is <u><em>B</em></u></h2>

Explanation:

White raven [17]2 years ago
3 0

Answer: Form a hypothesis

A scientific way to investigate a problem involves mainly five steps.

→A question or problem must be formulated in the first step.

→After gathering the background information, A hypothesis must be made.

→Third step would be to design an experiment.

→Fourth step would include collection and recording of data.

→Fifth step would include the conclusions drawn from the experiment and communication of hypothesis and its results.

When  the scientist notices that a dark colored peppered moth over light colored background, he formulates a question: whether the difference in visibility affects the survival rate of dark moths or not? Therefore, next step in the scientific method would be to gather more information on the subject and formulate a hypothesis.

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What is an Amplitude
dangina [55]

Amplitude is a measurement of the magnitude of displacement (or maximum disturbance) of a medium from its resting state, as diagramed in the peak deviation example below (it can also be a measurement of an electrical signal's increased or decreased strength above or below a nominal state).

3 0
2 years ago
Read 2 more answers
An electron moving parallel to a uniform electric field increases its speed from 2.0 × 107 m/s to 4.0 × 107 m/s over a distance
jeka94

Answer:

1.8\times 105 N/C

Explanation:

We are given that

u=2\times 10^7 m/s

v=4\times 10^7 m/s

d=1.9 cm=\frac{1.9}{100}=0.019 m

Using 1m=100 cm

We have to find the electric field strength.

v^2-u^2=2as

Using the formula

(4\times 10^7)^2-(2\times 10^7)^2=2a(0.019)

16\times 10^{14}-4\times 10^{14}=0.038a

0.038a=12\times 10^{14}

a=\frac{12}{0.038}\times 10^{14}=3.16\times 10^{16}m/s^2

q=1.6\times 10^{-19} C

Mass of electron,m=9.1\times 10^{-31} kg

E=\frac{ma}{q}

Substitute the values

E=\frac{9.1\times 10^{-31}\times 3.16\times 10^{16}}{1.6\times 10^{-19}}

E=1.8\times 105 N/C

7 0
3 years ago
How expensive is genetic counseling and reproductive technology?
ExtremeBDS [4]

Answer:

Genetic counseling without testing cost on average $213, whereas counseling, testing, and disclosure of results totaled $2057. A brief physician-based counseling instead of genetic counselor-based counseling would produce only small reductions in total costs.

hope it helps, please give me brainliest.

8 0
2 years ago
Why are negative ions usually larger than positive ions
irga5000 [103]
A negative ion is a atom that has an extra electron, but the same # of protons
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2 years ago
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A car has two horns, one emitting a frequency of 199 hz and the other emitting a frequency of 203 hz. what beat frequency do the
andriy [413]
Beat frequency, fb = |f2-f1|

That is, beat frequency is the absolute difference between two frequencies. Is is as a results of destructive and constructive inferences.

Therefore, in this case:

fb = 203 - 199 = 4 Hz
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2 years ago
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