The half-life of iodine-131 is 8 days. If a sample originally contains 0.96 g of the isotope how much will remain after 8 days?
A. 0.48 g
B. 0.24 g
C. 0.06 g

Solar cell a produces 100 joules of energy, when a light source is shown on it for 3 minutes. solar cell b produces 200 joules of energy when the same light source is shown on it for 5 minutes. which solar cell works better? a) solar cell b, because it produces more energy. b) solar cell b, because it generates more power. c) solar cell a, because it produces energy quicker. d) solar cell a, because it generates a greater wattage. eliminate

Which one of the following research methods can show cause and effect

The slope of a velocity time graph over any interval of time gives the during that interval