The answer is C.
Ionic compounds are those that bring together anions and cations bonded together by ionic bonds. The electrostatic forces of the different charges are significant in the bonds that make them strong hence require high energy to break them (high melting point). Due to the regular structure of ionic compound that tend to form lattices in solid form, when struck, they shatter along the lines of weakness of the lattice.
Answer:
What were the most important reasons that the Civil War started?
Explanation: i got it correct
Radial acceleration is given by

where

then

Now

Using the relation


Putting into rpm