The activity of a freshly prepared radioactive sample is
The activity of a freshly prepared radioactive sample is 1010 disintegrations per second, whose mean life is 109 s. The mass of an atom of this radioisotope is 10-25 kg. The mass (in mg) of the radioactive sample is.
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If the densities of metals A and B are 4.27 and 6.35 g/cm3, respectively, whereas their respective atomic weights are 61.4 and 125.7 g/mol, determine whether the crystal structure for this alloy is simple cubic
determine the temperature of propane when the pressure in the tank drops to 1 atm. Also determine the total amount of heat transfer from the environment to the tank to vaporize the entire propane in the tank.
Compare and interpret the four periods regarding the deficit spending. Focus on the changes in the percentages during each period and during the specific periods above, explain the variations in the debt. Give specific analysis of each period and a
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The activity of a freshly prepared radioactive sample is 1010 disintegrations per second, whose mean life is 109 s. find the mass (in mg) of the radioactive sample
A random sample of 50 suspension helmets used by motorcycle riders and automobile race- car drivers was subjected to an impact test, and on 18 of these helmets some damage was observed.
The following figures are based on budget estimates of Government of India for the year 2001 – 2002
A loop of wire with radius R has charge density 3theta^2 , where theta is in radians. Write an integral (but do not solve) to find the electric potential at the center of the loop
A bug is crawling up the leg of a man on a train. The velocity of the bug relative to the man is 0.3 m/s k . The mas is waling from one side of a carriage to the other with a vlocity relative to the train of 1.2 m/s j.
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