The Paleozoic Era is bracketed by two major events in earth's history. It began with an unexplained explosion in animal life and ended with the world's largest mass-extinction known to man. The causes of these great events are currently unknown and under debate.
A bar magnet with its south pole on the left is describes the object on the right. A bar magnet's magnetic field is stronger at either pole of the magnet. When compared to the south pole, it is similarly strong at the north pole.
<h3 /><h3>What is bar magnet and its types?</h3>
There are two types of rectangular magnets fashioned like bars: cylindrical bar magnets and rectangular bar magnets.
Both types of bar magnets are capable of producing a powerful magnetic field. A rod magnet is a cylindrical bar magnet that is also known as a rod magnet.
Thus option D is correct.
For more details about bar magnet, click here
brainly.com/question/9751704
#SPJ1
27.0 g
Explanation:
The density of a substance tells you the mass of exactly one unit of volume of said substance.
In your case, aluminium is said to have a density of
density Al
=
2.70 g
.
cm
−
3
This tells you that every
1 mL
of aluminium has a mass of
2.70 g
.
All you have to do now is use the density of aluminium as a conversion factor to go from cubic centimenters of aluminium to grams
10.0
cm
3
⋅
2.70 g
1
cm
3
=
27.0 g
−−−−−
The answer is rounded to three sig figs.
