Both 192ir and 137cs are used in barchytherapy, the use of radioactive isotopes to treat various cancers. both are beta emitters.
(a)explain how this observation is consistent .
(b)how do the the n/z ratios for these two medical isotopes compare to each other ? how do they compare to their nearest stable isotopes?

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)

If a simple machine reduces the strength of a force, what must be increased?

Acamcorder has a power rating of 20 watts. if the output voltage from its battery is 9 volts, what current does it use?