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maw [93]
3 years ago
14

4. Which variables are constant in an experiment?

Physics
1 answer:
-BARSIC- [3]3 years ago
3 0

Answer:

The controlled variable is the correct answer.

Explanation:

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C.
18 / x = 12 / 4
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3 years ago
2. Categorize each statement as true or false. A cylindrical capacitor is essentially a parallel-plate capacitor rolled into a t
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Answer:

Explanation:

False --> A cylindrical capacitor is essentially a parallel plate capacitor rolled into a tube. This is because a cylindrical capacitor comprises two cylinders.

False --> The dielectric constant indicates the distance by which the two plates of a capacitor are separated.

True --> The charge on a capacitor increases quickly at first, then much more slowly as the capacitor charges. This is because the charge on the capacitor increases exponentially.

False --> The voltage across a capacitor in an RC circuit increases linearly during charging. This is because the voltage increases exponentially.

True --> One of the principal purposes of a capacitor is to store electric potential energy.

True --> A capacitor charges rapidly when connected to an RC circuit with a battery. This is because a cylindrical capacitor is basically a parallel plate capacitor rolled into a tube.

6 0
4 years ago
Two long, parallel wires are separated by a distance of 2.2 cm. The force per unit length that each wire exerts on the other is
VikaD [51]

Answer:

i_2 = 7.6 A

Explanation:

As we know that the force per unit length of two parallel current carrying wires is given as

F = \frac{\mu_o i_1 i_2}{2\pi d}

here we know that

F = 3.6 \times 10^{-5} N/m

i_1 = 0.52 A

d = 2.2 cm

now from above equation we have

3.6 \times 10^{-5} = \frac{4\pi \times 10^{-7} (0.52)(i_2)}{2\pi (0.022)}

3.6 \times 10^{-5} = 4.73 \times 10^{-6} i_2

i_2 = 7.6 A

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3 years ago
Which sequence does<br> the energy transformation in an automobile engine.
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Answer:

Mechanical

Explanation:

7 0
3 years ago
What is a hypothesis?
Maslowich
Is something you don't know so you guess before you do the experiment or project 
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3 years ago
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