20245
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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91065
Chemical

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).      
39733
Chemical

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.              
29636
Chemical

Molar concentration of mass and volume

Calculator allows to determine the molar concentration of the solution.            
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Math

The harmonic mean

Calculator based on the entered numbers separated by commas calculate the harmonic mean.        
45469
Building

Associated amount of mortar

Jak obliczyć ilość potrzebnych surowców do zaprawy?
Calculator on the basis of the specified class of mortar and grout qs calculates the amount of raw materials.
220479
Health

Calculator Body Surface BSA (Body Surface Area)

Jak obliczyć swoje BSA? Jak sprawdzić BSA?
The calculator calculates the BSA (Body Surface Area) by the formula Mosteller and Dubois.              
64817
Physical

Calculator resistance resistor ( bars)

Calculator gives the resistance of the resistor based on the introduced color bars.
65325
Verifiers

Verification of the social security number in Poland

It presents data deriving from the unique social security number, such as date of birth, sex, serial number and check its correctness.