To how many significant figures should each answer be rounded? (6.626x 10-34 J·s) (2.9979x 108 m/s)
equation A:
= 4.253551477516 x 10-19 J(unrounded)
4.670 x 10-7m
After rounding, the answer to equation A should have
O 3 significant figures.
O2 significant figures.
4 significant figures.
5 significant figures.
1 significant figure.