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4 years ago

To eliminate the possibility of hidden or unknown variables, the scientist must run a _______ experiment.

Physics

2 answers:

blagie [28]4 years ago

4 0

To eliminate the possibility of hidden or unknown variables, the scientist must run a Controlled experiment.

pogonyaev4 years ago

4 0

Answer:

Control experiment

Explanation:

to eliminate the possibility of hidden or unknown variables, the scientist must run an a Control experiment

A control Experiment is performed to minimize the effect of variables other than the independent variable.

Reliability of the results are increased after the control experiment.

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Earning Goal: To be able to calculate work done by a constant force directed at different angles relative to displacement

lana [24]

Answer:

the work done by the 30N force is 4156.92 J.

For this problem, they don´t ask you to determine the work of the total force applied in the block. They only want the work done for the force of 30N, with an angle of 30º respectively of the displacement and a traveled distance of 160m. So:

W=F·s·cos(α)=30N·160m·cos(30º)=4156.92J

8 0

3 years ago

Betty is six years old and often asks her parents many questions. Her parents respond to her questions however trivial they may

Brums [2.3K]

This behavior helps Betty in intellectual development.

5 0

3 years ago

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When the thermal energy of a material decreases, _____.

Pani-rosa [81]

The surrounding environment cool off is the answer

8 0

3 years ago

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if somebody swim to the right for 30 meters then swims to left for 15 meters and then swims back to the right for 50 meters what

zubka84 [21]

50m

Explanation:

Displacement is the length of path traveled which is measured from start to the finishing of the path.

Analysis of the journey;

Starts from:

0 30m from right

15m to left

50m to right

The displacement is 50m from the starting point.

Distance is total path traveled and for this problem it is 30+ 15 + 50 = 95m

learn more:

displacement brainly.com/question/5461768

#learnwithBrainly

8 0

3 years ago

A good way to de-magnetize something is to___.

Dominik [7]

HEYA MATE

YOUR ANSWER IS D.PLACE IT IN AN ELECTRIC FIELD

BECAUSE IT makes sense you can use alternating current to remove magnetism

4 0

4 years ago

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