Determine what was the activity at t with a pure sr-90

Reference no: EM13341415

Starting with a pure Sr-90 sample at time t=0, a researcher finds that the Y-90 activity is 22.9 mCi at t = 1 day. What was the activity at t = 0?

Reference no: EM13341415

Questions Cloud

What is the value of the acceleration of gravity at altitude : A satellite is placed in orbit 100 km above the surface of the earth (radius = 6370 km, mass = 5.98 x 1024 kg). A. What is the value of the acceleration of gravity at that altitude as a percentage of the acceleration at the surface of the earth

Find a company that has investments and equity securities : What the underlying fundamental concept is that governs what expenses should be capitalized and what should be expensed.

What is the net force and net torque on the loop : A square loop of side a centered at the origin in the xy plane carries current counter clockwise as view from above (from positions with z > 0). What is the net force and net torque on the loop

Calculate activity of uranium-238 in 100 grams of uranium : Calculate the activity of Uranium-238 in 100 grams of uranium ore containing 5 weight percent U308. What is the expected activity of Uranium-234 in the ore

Determine what was the activity at t with a pure sr-90 : Starting with a pure Sr-90 sample at time t=0, a researcher finds that the Y-90 activity is 22.9 mCi at t = 1 day. What was the activity at t = 0

Find the net force and torque on the rectangular loop : A rectangular loop is 1.2 m wide and 0.80 m tall and carries 0.50 A of current clockwise. Find the net force and torque on the rectangular loop

Write a report to your manager advising : What should he do if he follows the EMV criterion and what is the expected value of perfect information - write a report to your manager advising - the advantages and disadvantages of simulation models

Calculate the change in the amount of bremsstrahlung : Calculate the change in the amount of bremsstrahlung that would be produced if an aluminum target were substituted for an iron target.

What percentage of photon beam would interact to absorber : What percentage of a photon beam would interact in passing through a 3-mm slice of absorber if the linear attenuation coefficient were 0.15/cm

User Account

All Pages