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professor190 [17]
4 years ago
14

What is the variable that is manipulated by the experimenter during an experiment called

Physics
1 answer:
larisa [96]4 years ago
3 0
Independent variable
The independent variable is the variable that is controlled and manipulated by the experimenter. For example, in an experiment on the impact of sleep deprivation on test performance, sleep deprivation would be the independent variable.
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How much work must be done in the car to slow it from 100km/h to 50km/h
Brilliant_brown [7]

Answer:

-96.465m joule

Explanation:

Let m = mass of the car and v1 = initial velocity and v2 = final velocity

Given.

Initial velocity = 100 km/h

final velocity = 50 km/h

What is work done in the car to slow it from 100km/h to 50km/h?

v1=100km/h=27.78m/s

v2=50km/h=13.89m/s

The work done in the car to slow it from v1 to v2.

w=Δk

w=k2-k1

w= \frac{1}{2}m(v2)^{2}- \frac{1}{2}m(v1)^{2}

w=\frac{1}{2} m(v2-v1)^{2}

w=\frac{1}{2}\times m(13.89 -27.78)^{2}

w=\frac{1}{2}\times m(-13.89)^{2}

w=\frac{1}{2}\times m\times (-192.93)

w=-96.465m joule.

Therefore, the work done is -96.465m joule

7 0
3 years ago
Which has the least potential energy
makvit [3.9K]

Answer:

The plasma state would have the least potential energy and the greatest kinetic energy.

Explanation:

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4 0
3 years ago
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Which atom in a water molecule has the greatest electronegativity??
galina1969 [7]
The oxygen atom in a water molecule has the greatest and or highest electronegativity, it has the greatest ability of all of the elements in a water molecule, 2, to pull electrons closer towards its own atom.
7 0
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Answer:

x₁ = 58.09 m

Explanation:

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Δx = x₁-x

32.2= x₁-25.89

32.2+25.89 = x₁

58.09 m =x₁

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The atomic mass of carbon-13 is 13. It has six protons. How many neutrons does this isotope have?
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3 years ago
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