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belka [17]
3 years ago
14

Why is it important to use constants in an experiment?

Physics
1 answer:
Firlakuza [10]3 years ago
5 0
<span>In order for the results to be valid, the dependent variable can only be affected by the independent variable, so somethings need to be kept constant. The things that need to be kept constant are called  controlled variables.</span>
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Number 3,4, 6, and 8
siniylev [52]

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3 years ago
A certain car can accelerate from 0 to 60 mph in 7.9 s. What is the car's average acceleration in mph/s?
Anna007 [38]

Answer:

<em>a = 7.6\ mph/s</em>

Explanation:

<u>Motion With Constant Acceleration </u>

It's a type of motion in which the velocity of an object changes uniformly in time.

The equation that describes the change of velocities is:

v_f=v_o+at

Where:

a   = acceleration

vo = initial speed

vf  = final speed

t    = time

Solving the equation [for a:

\displaystyle a=\frac{v_f-v_o}{t}

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\displaystyle a=\frac{60 \ mph-0}{7.9}

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3 years ago
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mr Goodwill [35]

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Explanation:

8 0
3 years ago
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asambeis [7]

Answer:

800 mL

Explanation:

D*V=M

You pick out the numbers as well as what it is they represent from the word problem/explanation, then from there plug them in to the equations. Once you do that, you get your product and have the answer.

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Tems11 [23]

You got it right my friend

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