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Physical

Resistivity and conductivity

The calculator calculates the resistivity and conductivity of the material from the resistance, cross-sectional area and the length of the element at 20 ° C.            

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Physical

Calculator resistance resistor ( bars)

Calculator gives the resistance of the resistor based on the introduced color bars.
60884
Physical

Parallel connection of resistors

The calculator calculates the equivalent resistance of two resistors connected in parallel.            
53022
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

Perpetual calendar

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Calculator gives what day of the week for the date specified by the user.                  
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Calculator VAT refund for building materials

The calculator calculates the amount of VAT that can be refunded in respect of incurred expenses associated with the purchase of construction materials.                    
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Math

Convolution of two vectors

The calculator performs convolution of two vectors of the same length in the field of real numbers by zsuwową.
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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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Building

Raw materials for the construction of modular suspended ceilings - covered grill, removable plates

Calculator allows you to calculate the quantity of materials for the construction of modular ceilings.