Chem 130

>>377180
a) All the numbers in the question are 3 sig figs, so the answer should also be rounded to 3 sig figs.

b)2.998x10^8 m/s, all other terms cancel each other out (so become 1x1x1x1)

c)answer is in Joules (J) as the second terms cancel out, give 4 sig figs.

d)answer should have 3 sig figs and units are cm^3

e) answer has no units

>>377205
You mean m/yr for b.