A1.000kg block of phosphorus-32, which has a half life of 14.3 days, is stored for 100.1 days. at the end of this period, how much phosphorus-32 remains?

0.0078 kg

Explanation:

The answer can be found using the Radioactive Half Life Formula:  

Where:  

is the final amount of phosphorus-32

is the initial amount of phosphorus-32

is the time elapsed  

is the half life of phosphorus-32

Solving with the given data:

This is the remaining amount of phosphorus-32  

he kicked it 10 feet straight up into the air? i think this works.

find the sum of the two horizontal vectors and the sum of the two vertical vectors

isoceles right angled triangle