seanisom7
12.01.2021 •
Mathematics
How much of a 1.0 g polonium-214 sample remains after 818 microseconds? The half life of polonium -214 is 163.7 microseconds
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Ответ:
0.3125g
Step-by-step explanation: 1.0 * 1/2= 0.5
0.5* 1/2= 0.25
0.25* 1/2= 0.125
0.125* 1/2= 0.625
0.625* 1/2= 0.3125g
Ответ:
0.0320g
Step-by-step explanation:
solving for M, and we are given Mo=1.00g, t=818 microseconds, t1/2=163.7 microseconds.
n=t/t1/2=818/163.7=4.97
M=Mo(1/2)n=1.00(1/2)4.97=0.0320g
Ответ:
As you see in the diagram I drew, the triangle, aligned with the y and x axis at the origin. You would be able to rotate the triangle around the y axis to create a 3-dimensional object that is a cone.