2. the following measurements were made to determine the density of a material whose
value was, according to the handbook of chemistry and physics, 1.15 g/ml
trial #1
0.95 g/ml
trial #2
1.16 g/ml
trial #3
1.26 g/ml
a. make a general comment on the accuracy of these results
b. make a general comment on the precision of these results

14 days is the half-life of phosphorus-32

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hurricanes form when warm, moist air from the ocean surface quickly rises into the atmosphere and forms storm clouds and rain. when the clouds are formed, heat is released which warms the cool air in the upper regions of the atmosphere so that the cycle can continue. which two phases of the water cycle are repeated in this process?