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Firdavs [7]
3 years ago
9

For which of these questions could a testable hypothesis be developed? Check all that apply.

Physics
2 answers:
Dima020 [189]3 years ago
8 0
-- <span>Does the width of a rubber band affect how far it will stretch?

-- How does the thickness of a material affect insulation?

You could take a guess at the answer to each of these,
and then test to see if your guess is correct.


</span>
timurjin [86]3 years ago
7 0

Answer:

A.) Does the width of a rubber band affect how far it will stretch?

B.) How does the thickness of a material affect insulation?

C.) Do all objects fall to the ground at the same speed?

Explanation:

just did the assignment

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Different forms of the same element are called what​
solmaris [256]

Answer:

Allotropes

Explanation:

Because it is the same element the chemical conposition is the same i.e. The atoms that make the substances are identical. Allotropes can be crystalline or amorphous and sometimes they can be varied in properties.

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The length of the object

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4 years ago
A capacitor is being charged from a battery and through a resistor of 10 kΩ. It is observed that the voltage on the capacitor ri
swat32

Answer:

C = 2.48 \times 10^{-4} Farad

Explanation:

As per the equation of voltage on capacitor we know that

V = V_{max}(1 - e^{-\frac{t}{\tau}})

now we know that voltage reached to its 80% of maximum value in 4 second time

so we will have

0.80 V_{max} = V_{max}(1 - e^{-\frac{4}{\tau}})

0.20 = e^{-\frac{4}{\tau}}

-\frac{4}{\tau} = ln(0.20)

-\frac{4}{\tau} = -1.61

\tau = 2.48

as we know that

\tau = RC

(10 k ohm)(C) = 2.48

C = 2.48 \times 10^{-4} Farad

4 0
3 years ago
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