Determine the activity of 50 mg of radium-226 t12 1600
Determine the activity of 50 mg of radium-226 (t1/2 =1600 years) in becquerels and in millicuries.
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The most disruptive supply shocks in recenthistory were caused by OPEC, the Organization of PetroleumExporting Countries. In the early 1970s, OPEC's coordinatedreduction in the supply of oil nearly doubled the world price.
The laser in an audio cd player uses light with a wavelength of 7.80* 10^2nm. Calculate the frequency of the light.
"The most disruptive supply shocks in recenthistory were caused by OPEC, the Organization of PetroleumExporting Countries. In the early 1970s, OPEC's coordinatedreduction in the supply of oil nearly doubled the world price.
A freezer has a coefficient of performance of 6.30. The freezer is advertised as using 430 kW-h/y, On average, how much energy does the freezer use in a single day
A heat engine operates in a Carnot cycle between 82.0°C and 345°C. It absorbs 20,000 J of energy per cycle from the hot reservoir, What is the mechanical power output of this engine
Suppose that thedemand curve for corn is downward-sloping but that the supply curveis perfectly price inelastic at a quantity of Q* once the corn isharvested. Furthermore, assume that the equilibrium price is $ 5per bushel.
predict the outcome of the synthesis of an azo dye using 4-nitroaniline as the diazonium precursor and benzaldhyde as the coupling agent
How many moles of ammonia are required to react completely with 146 L of oxygen gas according to the following reaction at 0 C and 1 atm
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