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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
Field and volume of a sphere
Calculator by entering the radius of the sphere is calculated its surface and volume.
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Insulation of wall
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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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Verifiers
Verification of the REGON number in Poland
Verifier allows you to validate entered REGON number
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Medical
Peak expiratory flow in Asthma
Calculator based on the difference between the maximum and minimum peak expiratory flow (PEF) provides diagnostic information on the state of the patient's asthma.
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Alcoholic hepatitis - Maddreya prognostic indicator (DF):
Calculator to the data calculates the Maddreya that helps assess the stage of the disease - alcoholic hepatitis.