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luda_lava [24]
3 years ago
7

Students hypothesized that by running an electric current through the wire of the apparatus shown here, they could cause a non-m

agnetic nail to exhibit magnetic properties. What would be a reasonable way to test this?
a

Question 7 options:

a.Weigh the nail first while before turning the current on and again while the current was on.


b.Put the nail in water before turning the current on and again after turning the current off.


c.Examine the nail under a microscope before turning the current on and again after turning the current off.


d.See if iron filings will stick to the nail before turning the current on and again while the current was on.
Physics
2 answers:
Romashka-Z-Leto [24]3 years ago
8 0
Without the picture its hard to say, but i would say D
laiz [17]3 years ago
5 0
D) see if the iron fillings will stick to the nail before turning the current on and again while the current was on

I took the test
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Answer:

V' = V/2

Explanation:

The voltage across a parallel plate capacitor is given as follows:

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where,

V = Voltage across capacitor

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C = Capacitance of Capacitor = A∈₀/d

Therefore,

V = Qd/A∈₀

where,

A = Area of plate

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FOR CAPACITOR 1:

Q = Q

d = d

A = A

V = V

Therefore,

V = Qd/A∈₀   --------------- equation (1)

FOR CAPACITOR 2:

V' = ?

Q' = Q

d' = d

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Therefore,

V' = Q'd'/A'∈₀

V' = Qd/2A∈₀

V' = (1/2)(Qd/A∈₀)

using equation (1):

<u>V' = V/2</u>

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3 years ago
Help....................​
Nastasia [14]
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3 years ago
A treasure chest full of silver and gold coins is being lifted from a pirate ship to the shore using two ropes as shown in the f
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The tension in rope C is determined as 122.23 N.

<h3>Tension in rope C</h3>

The tension in rope C is calculated as follows;

B² = A² + C²

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C² = 14,940

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Thus, the tension in rope C is determined as 122.23 N.

Learn more about tension here: brainly.com/question/24994188

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TEA [102]

Answer:

It’s d

Explanation:

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Which of the following would decrease your carbon footprint?
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The third option seems correct. Using any bag more than once will help in decreasing the carbon foot print.

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