Brian is given an unknown element that is bright when sunlight hits it. he has a hammer and an electrical source. if he attached the electrical source, what might happen if the substance is a metalloid?

We know that the material has a bright when sunlight hits it, now we connect an electricl source to our material, which implies that we may have a current in it.

Metalloids are materials between metals and non-metals, and one way to differentiate them of the metals is by the fact that metalloids are semi-conductors (and normal metals are conductors)

This would mean that a current flowing in a metalloid will "dissipate" faster than if it flowed in a metal.

And one interesting thing about them is that if you increase the temperature of the metalloid the electrical conductivity also does increase.

Answering the question, with the source attached to the metalloid, we will have current flow, but the reading (amperage) should show that the total current decreases, and we also may see an increase in the temperature of the material (it heats when the electrons flowing inside of it stop moving, for example, because a collision)

half of a circle

explanation:

the arrow and the top of the circle is matching together. it is not a polygon because a polygon would always be the same shape. therefore, an half of a circle is called semicircle so you would find the radius of it.

force tends to be low and long diustance masses are high