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AnnyKZ [126]
3 years ago
5

2. Why is an experiment called a controlled study?

Physics
2 answers:
jok3333 [9.3K]3 years ago
5 0

An experiment is called a controlled study because the person conducting the experiment will be able to control the controllable variables or factors. The person conducting the experiment can manipulate the variables other than the independent variables and the number of times the experiment will be done.

rewona [7]3 years ago
3 0
An experiment is termed a controlled study as a result of the person conducting the experiment are going to be able to control the controllable variables or factors. The person conducting the experiment will manipulate the variables apart from the independent variables and therefore the variety of times the experiment are going to be<span> done.

Explanation:
</span>In a controlled exposure study, one cluster<span> of participants is exposed to a substance (e.g. a pollutant) </span>whereas<span> those </span>within the<span>"control" </span>group aren't<span>. The results </span>are<span> then compared </span>to work out<span> the health effects of the substance being studied.</span>
<span>
A controlled experiment </span>could be a<span> scientific </span>test<span> done </span>underneath<span> controlled conditions, </span>which means<span> that </span>only one<span> (or a few) factors </span>are modified<span> at a time, </span>whereas<span> all others </span>are kept<span> constant.</span>
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Answer:

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Explanation:

First, find the acceleration:

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Now find the final velocity.

Given:

Δx = 45.8 m

v₀ = 6.25 m/s

a = 0.719 m/s²

Find: v

v² = v₀² + 2aΔx

v² = (6.25 m/s)² + 2 (0.719 m/s²) (45.8 m)

v = 10.2 m/s

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