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zmey [24]
3 years ago
13

Whats A Controlled Experiment? Whats A Controlled Experiment? Like what the definition is please!

Physics
1 answer:
frozen [14]3 years ago
3 0
A controlled experiment is when scientests go throw thests to make an experiment

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A biologist formulates a hypothesis, performs experiments to test his hypothesis, makes careful observations, and keeps accurate
SVEN [57.7K]
<span>The next step of the scientific method is to analyze the results and draw conclusions. After that step, if the results agree with the hypothesis, then the results should be communicated. If the results do not support the original hypothesis, then the biologist must go back to the beginning and reformulate their hypothesis based on the results of the experiment.</span>
4 0
3 years ago
A circle has an initial radius of 50ft when the radius begins decreasing at a rate of 2ft/s. what is the rate of change of the a
valkas [14]
The area of the circle with radius r is
A = πr²

The rate of change of area with respect to time is
\frac{dA}{dt} = \frac{dA}{dr} . \frac{dr}{dt} =2 \pi r. \frac{dr}{dt}

The rate of change of the radius is given as
\frac{dr}{dt} =-2 \,  \frac{ft}{s}
Therefore
\frac{dA}{dt} =-4 \pi r \,  \frac{ft^{2}}{s}

When r = 10 ft, obtain
\frac{dA}{dt}|_{r=10 \, ft} = -40 \pi  \,  \frac{ft^{2}}{s}

Answer: - 40π ft²/s (or - 127.5 ft²/s)
7 0
3 years ago
If you are traveling at 75 km/h how long will it take to travel 32 km?
Oksi-84 [34.3K]

Answer:

This would be 24 minutes

Explanation:

7 0
3 years ago
A plate falls to the floor. When is its potential energy
Anna35 [415]

Answer:

I think it's 3

Explanation:

Can I have brainliest? It would help me out, if not thanks anyways! Hope this helped and have a nice day!

5 0
2 years ago
Where is Jesus located, I would like to pay him a visit ;)
Marina86 [1]

Answer:

Jesus is in everyone's heart...

Just try to find him..:D

5 0
3 years ago
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