<em>r = 15 cm</em>
<em>formula</em>
<em>V = πr²×h/3</em>
<em>replace</em>
<em>4950 = 22/7×r²×21/3</em>
<em>4950 = 22/7×r²×7</em>
<em>4950 = 22×r²</em>
<em>r² = 4950/22</em>
<em>r² = 225</em>
<em>r = √225</em>
<em>r = √15²</em>
<em>r = 15 cm</em>
the answer is side shields cause the side shields gives more protection to the eyes than just the lens because the flying objects and particals can still get into your eyes even with the safty glasses but with the side shields the total risk of injury percentage goes down because the side shields helps blocks the flying objects and particals that are trying to get into your eye from the side
TRUE
Psychodynamic theories are usually too vague to allow a
clear scientific test. Modest support for central psychodynamic hypotheses has
been provided by Empirical studies. Critics have in the past disputed very many
aspects of psychoanalysis including whether it is indeed a science or not.
However much this is so, psychoanalysis is a great idea in personality that
should never be overlooked.
