This was because the experiment showed that a substance could emit radiation even while it was not exposed to light.
43 inHg = 43 inHg*2.54cm/in = 109.22cmHg * 10 mm/cm = 1092.2 mmHg
14.7 psi = 760 mmHg
1092.2mmHg * 14.7psi / 760 mmHg = 21.13 psi
Answer: option D. 21.13 psi
<span>they exercise regularly, which improves the efficiency of their heart.
Hope this helps!
-Payshence xoxo</span>
