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Chemical

The frequency of the relaxation based on the Arrhenius equation

Calculator based on the given temperature, the frequency of vibration and thermal activation energy calculated częsość relaxation.                    


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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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Volume of the parallelepiped

The calculator allows you to calculate the volume of the parallelepiped.
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Health

Daily caloric needs. How many calories do I need?

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Calculator to the data calculates your daily calorie requirement.                
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Roots of a quadratic equation

Calculator based on the entered coefficients calculated roots of a quadratic equation.              
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Building

Time of the lathe

The calculator calculates the processing time and cut the lathe on the basis of the information given workpiece.                      
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Financial

Key indicator Return on assets (ROA)

Calculator based on the values ​​entered in net profit and assets are calculated return on assets ROA. ROA is a measure of return on assets. This ratio indicates a company's ability (and more specifically - of its assets) to generate profit.