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MatroZZZ [7]
3 years ago
7

Scientists today learn about the world by _____. 1. using untested hypotheses to revise theories 2. observing, measuring, testin

g, and explaining their ideas 3. formulating conclusions without testing them 4. changing scientific laws
Physics
1 answer:
krek1111 [17]3 years ago
5 0

Answer:

Option 2 (observing, measuring, testing, and explaining their ideas) is the correct choice.

Explanation:

  • A traditional perception of such a scientist is those of an individual who performs experiments in some kind of a white coat.
  • The reality of the situation is, a researcher can indeed be described as an individual interested in the comprehensive as well as a recorded review of the occurrences occurring in nature but perhaps not severely constrained to physics, chemistry as well as biology alone.

The other three choices have no relation to a particular task. So the option given here is just the right one.

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3. [-/2 Points]
natita [175]

(a) The average velocity of the car in m/s for the first leg of the run is 36.2 m/s.

(b) The average velocity (in m/s) for the total trip is 0.

<h3>Average velocity </h3>

The average velocity of the car in m/s for the first leg of the run is calculated as follows;

Average velocity = total displacement/total time

Average velocity = (760) / (21) = 36.2 M/S

<h3>Average velocity for total trip</h3>

The average velocity (in m/s) for the total trip is calculated as follows;

v =  total displacement/total time

v = 0/(26 + 21)

v = 0

Thus, the average velocity of the car in m/s for the first leg of the run is 36.2 m/s.

The average velocity (in m/s) for the total trip is 0.

Learn more about average velocity here: brainly.com/question/6504879

#SPJ1

8 0
1 year ago
The lowest note possible on the piano is ____ hz, and the highest note possible is 4200 hz.
uranmaximum [27]
From what I herd and seen 27 hz. Is the lowest note you can hit.
7 0
3 years ago
Read 2 more answers
The type of coal that has the highest carbon content is
Elden [556K]
The correct answer is anthracite
7 0
3 years ago
Which sentence contains italicized words that are used as an infinitive phrase?
In-s [12.5K]
First, the infinitive phrase must contain the word "to", so the only options are A and D.

In D "to" is a preposition: it specifies the spacial relation: to the grocery store.

The infinitive phrase is "to go" and the answer is A.
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6 0
3 years ago
. There are fewer organisms at the highest trophic levels, because
Amiraneli [1.4K]

Answer:

Because there is less energy at higher trophic levels

Explanation:

  • In a food chain that shows the feeding levels of organisms in an ecosystem, energy decreases as you move from the lowest trophic level to the highest trophic level.
  • The lowest trophic level consists of producers which have the highest energy as they trap energy directly from the sunlight.
  • The energy is lost from one trophic level to the next up to the highest trophic level which has the lowest energy.
  • Therefore, organisms at the highest trophic level are fewer in number but large in size.
7 0
3 years ago
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