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Physical

Core area

The calculator calculates the optimal surface for the heat sink temperature indicator.


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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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Physical

Calculator resistance resistor ( bars)

Calculator gives the resistance of the resistor based on the introduced color bars.
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Physical

Associated force of the hydraulic piston and the cylinder

Hydraulic cylinder is a mechanical akutatorem used for power transmission line by a linear thrust. Through the movement of the piston up and down over the forces and pressure. This calculator is used to calculate the two forces given angle for each operation.      
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Calendar

Date calculator

Calculator allows you to calculate the date, which will be after a specified number of days, months and years from a certain date.
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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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Verifiers

Verification of the REGON number in Poland

Verifier allows you to validate entered REGON number
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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.                          
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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.