Chemical

Radioactive decay

The calculator calculates how much radioactive material remains after a certain period of time.

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92400

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).

40929

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.

30499

Chemical

Molar concentration of mass and volume

Calculator allows to determine the molar concentration of the solution.

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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.

29620

Life

Freezing sea water

Calculator based on the average salinity of the basin are calculated freezing point of the water content by the formula Krummel.

27633

Math

Sieve of Eratosthenes

The program generates the prime numbers in a given range using the sieve of Eratosthenes algorithm.

24582

Verifiers

Verification of the REGON number in Poland

Verifier allows you to validate entered REGON number

66635

Math

Combination of characters and numbers

Calculator allows to determine the existing combinations for the user-specified string.