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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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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).
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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.
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Chemical
Molar concentration of mass and volume
Calculator allows to determine the molar concentration of the solution.
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Math
Calculate how long you go on foot
Calculator calculates the approximate time given distance and overcome the distance on foot.
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Verifiers
Verification of the REGON number in Poland
Verifier allows you to validate entered REGON number
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Generators
SHA-1 generator
Jak wygenerować skrót wiadomości z użyciem algorytmu SHA-1?
Generates a message using SHA-1 algorithm.
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Building
Insulation of wall
Jak policzyć izolację ścian?
Calculator allows you to calculate the amount of insulation panels needed to cover the walls of the building using the "light wet" or "dry light" methods.
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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.