Physics
Physics, 31.05.2021 23:30, insaneshootermo

Cobalt is a radioactive substance used in nuclear medicine. You are given an old souce of radioactive cobalt with 4.2 ng of cobalt-60 written on it to analyze. You determine that the present diation of this sample is 182 Bq. What is the Age of this source in years? What quantity, in grams, of cobalt-60 is left in this source?

answer
Answers: 3

Other questions on the subject: Physics

image
Physics, 22.06.2019 00:40, yaneiryx5476
Aballet student who learns with the of his instructor is demonstrating learning.
Answers: 3
image
Physics, 22.06.2019 02:50, lilybear1700
Steam is generated in a boiler of a cogeneration plant at 10 mpa and 450°c at a steady rate of 5 kg/s. in normal operation, steam expands in a turbine to a pressure of 0.5 mpa and is then routed to the process heater, where it supplies the process heat. steam leaves the process heater as a saturated liquid and is pumped to the boiler pressure. in this mode, no steam passes through a condenser, which operates at 20 kpa. (a) determine the power produced in the turbine and the rate at which process heat is supplied in this mode. (b) determine the power produced in the turbine and the rate of process heat supplied if only 60 percent of the steam is routed to the process heater and the remainder is expanded to the condenser pressure. (3.32 mw; 9.69 mw; 4.25 mw; 5.82 mw)
Answers: 3
image
Physics, 22.06.2019 09:50, ggcampos
Which statement correctly describes the current in a circuit that is made up of any two resistors connected in parallel with a battery? a. the current in the battery and in each resistor is the same b. the current the battery equals to the sum of the currents in the resistors c. the current in the battery is less than the current in either resistor d. the current in the battery equals to the product of the currents in the resistors
Answers: 1
image
Physics, 22.06.2019 13:00, livvyr0cks
Ways that industry and agriculture use physical properties to separate substances
Answers: 1
Do you know the correct answer?
Cobalt is a radioactive substance used in nuclear medicine. You are given an old souce of radioactiv...

Questions in other subjects:

Konu
Mathematics, 23.02.2021 02:10