The counting rate from a radioactive source is 8000 countss

The counting rate from a radioactive source is 8000 counts/s at time t=0, while 10 mins later the rate is 1000 counts/s.

(a) What is the half-life?

(b) What is the decay constant?

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The counting rate from a radioactive source is 8000 countss : the counting rate from a radioactive source is 8000 countss at time t0 while 10 mins later the rate is 1000 countss.a

If the force of the spring on the cylinder is f gt 100s13 : the cylinder has a weight of 22 lb and is pushed against a series of belleville spring washers so that the compression

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