46789
Life
Battery life
Calculator based on the specified battery capacity and consumption estimates the time. Calculator does not take into account changes in CPU speed and action in the case of ACPI computers.
Long description
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Life
Rainwater tank
The calculator calculates the amount of collected rainwater from the roof of the given dimensions.
Long description
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Life
Calculate how much you drink pure ethanol
On the basis of the data entered, the amount of drink and the percentage of alcohol content calculator calculates pure ethyl alcohol that we consume.
148185
Life
Battery charging time calculator
Calculator to the data calculates the estimated time of charging.
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Math
The line passing through the given points
Calculator gives the equation line passing through the points specified by the user in the Cartesian coordinate system.
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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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Number cheerful
Checks the calculator is a large number of so-called gay (Happy Number). Number gay is a natural number is defined as follows: Calculate the sum of squares of digits of the number. Repeat this process for the next results as long as we get the number 1 or the results will be repeated. If you have received as a result of one, the original number is the number of gay. Otherwise, a number bleak.
20819
Verifiers
NIP correctness in Poland
Jak sprawdzić poprawność numeru NIP?
Verifier allows you to validate the tax identification number entered