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Chemical
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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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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Associated ceiling material thickribs
Calculator allows you to calculate the approximate consumption of materials per 1 m2 rib ceiling with ceramic and concrete.
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Physical
Parallel connection of resistors
The calculator calculates the equivalent resistance of two resistors connected in parallel.
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Math
Multiplication table
Multiplication table 20 × 20 gives the opportunity to multiply their arbitrary natural numbers (1-20).
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Financial
Gross-Net Calculator prices of goods and services in Poland
Jak obliczyć kwotę brutto z uwzględnieniem podatku VAT?
Jak obliczyć kwotę netto z uwzględnieniem podatku VAT?
It allows you to calculate the amount of gross or net price including VAT
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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.