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Radioactive decay

The calculator calculates how much radioactive material remains after a certain period of time.      


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Calculator enthalpy

Enthalpy calculator is used to calculate the heat transfer during the process kwazistatycznego occurring in a closed thermodynamic system under constant pressure (isobaric process).      
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Dilution of solutions

Legend of given volume and calculates the concentrations of the solutions before and after dilution of the volume of solution added is calculated.              
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Molar concentration of mass and volume

Calculator allows to determine the molar concentration of the solution.            
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Basic equations and inequalities with absolute value

Calculator applies to the basic issues of the absolute value of the non-zero parameter "a"
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Combustion Calculator - L/100km <-> MPG (U.S.)

Calculator allows the conversion of fuel combustion km / h on U.S. MPG (Miles per Gallon) and vice versa.                      
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Return on investment over the

Calculator allows you to calculate the return on equity of investment in any financial instrument in relation to the value obtained at the beginning and end of the period.                    
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The electromagnetic force coil (Electromagnetic Force)

Calculator to input current, cross-sectional area, length and number of turns of the coil face it generated electromagnetic force.                        
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Calculator carat weight

Calculator calculates the weight of the ore from grams to carats, points, kilograms, milligrams and ounces.