How long would you have to wait before its activity
One gram of radium 226, which has a half life of 1,600 years, has an activity of 1.0 Cu. How long would you have to wait before its activity decreased to 0.25 Cu?
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a 60-kg object moving 50 ms collides with and sticks to a 20-kg object after the collision the composite object is
a 30-kg object moving in the positive xdirection has a one-dimensional elastic collision with a 50-kg object initially
james pushed his 2-kg toy truck across the kitchen floor with a force of 2 n if the floor provides 015 n of friction
when stimulation voltage was increased above threshold did the force of contraction increase decrease or stay the same
one gram of radium 226 which has a half life of 1600 years has an activity of 10 cu how long would you have to wait
mass-attenuation coefficient of aluminium al and lead pbin 300 kev is 1042e-01 and 4031e-01 respectively the material
barry the polar bear of barrow alaska spent his entire savings of 7000 on ice cream in preparation for a 90 day winter
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a toy spring loaded cannon is aimed 30 degrees above the horizontal the spring constant is 101 nm and the cannon ball
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