26073
Chemical
Radioactive decay
The calculator calculates how much radioactive material remains after a certain period of time.
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92573
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).
41044
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.
30578
Chemical
Molar concentration of mass and volume
Calculator allows to determine the molar concentration of the solution.
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Financial
Calculator ARP (annual percentage rate)
calculator to input the loan amount, the amount of commission (percentage) and the repayment time is calculated the annual interest rate.
66281
Verifiers
Verification of the social security number in Poland
It presents data deriving from the unique social security number, such as date of birth, sex, serial number and check its correctness.
21169
Life
Converter phone number
The converter accepts input alphanumeric phone number and converts it to a numeric format.
350264
Financial
ROCE - an indicator of the efficiency of investment
The calculator calculates ROCE on the basis of these pre-tax profits, total capital and current liabilities ROCE (called Return On Capital Employed) - an indicator of the efficiency and profitability of the investment, which is the capital of the company involved.
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Building
Calculator floor panels
Calculator based on the dimensions of the area to put the panels and occupancy data on number of panels in one package, calculate how much you have to buy packages of panels to cover the entire room.