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Friis transmission equation

The calculator calculates the power at which the antenna receives the signal output from the second antenna of the power and distance greater than a single wavelength. The higher the frequency, the higher the transmission power loss from the signal transmission.        

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Calculator resistance resistor ( bars)

Calculator gives the resistance of the resistor based on the introduced color bars.
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Parallel connection of resistors

The calculator calculates the equivalent resistance of two resistors connected in parallel.            
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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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NIP correctness in Poland

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Coverage ratio of equity to assets

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Valuation of capital assets in the form of CAPM SML

CAPM calculator as SML allows you to calculate the expected rate of return on all portfolios not only effective and individual shares of the securities market.              
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Key indicator Return on assets (ROA)

Calculator based on the values ​​entered in net profit and assets are calculated return on assets ROA. ROA is a measure of return on assets. This ratio indicates a company's ability (and more specifically - of its assets) to generate profit.        
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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.