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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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A force of 85 N is used to push a box along the floor a distance of 15 m. How much work was done?
denpristay [2]

Answer:

1275J

Explanation:

Given parameters:

Force on box  = 85N

Distance moved  = 15m

Unknown:

Work done  = ?

Solution:

Work done is the amount of force applied on a body to move it through a specific distance.

 Work done  = Force x distance

Now insert the parameters and solve;

 Work done = 85 x 15  = 1275J

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One mole of titanium contains how many atoms?
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Answer:

\boxed {\boxed {\sf D. \ 6.02*10^{23} \ atoms}}

Explanation:

One mole of a substance contains the same amount of representative particles. These particles can be atoms, molecules, ions, or formula units. In this case, the particles are atoms of titanium.

Regardless of the particles, there will always be <u>6.02*10²³</u> (also known as Avogadro's Number) particles in one mole of a substance.

Therefore, the best answer for 1 mole of titanium is D. 6.02*10²³ atoms.

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The Earth orbits around the sun because the gravitational force that the sun
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<h3>Question -:</h3>

The Earth orbits around the sun because the gravitational force that the sun

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O B. is very small because the sun is so far from the Earth.

O c. is smaller than the force the Earth exerts on the sun.

O D. pushes the Earth away from the sun.

<h3>Answer -:</h3>

O A. causes Earth's acceleration toward the sun.

<em>I </em><em>hope </em><em>this</em><em> </em><em>helps</em><em>,</em><em> </em><em>have </em><em>a </em><em>nice </em><em>time </em><em>ahead!</em>

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