12942

Life

# How far was struck by lightning

Calculator based on the specified time from seeing lightning until you hear thunder in the distance calculated discharge occurred.

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992010

Life

## Rainwater tank

The calculator calculates the amount of collected rainwater from the roof of the given dimensions.
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78756

Life

## Battery charging time calculator

Calculator to the data calculates the estimated time of charging.

59710

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.

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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.

8490

Math

## The center point (mid point)

The calculator calculates the coordinates of the point located exactly halfway between two preset points in the two-dimensional plane.

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Math

## Weighted average ratings

The calculator calculates the weighted average of the ratings of the following items.

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Physical

## Parallel connection of resistors

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

66658

Calendar

## Perpetual calendar

jak obliczyć dzień tygodnia na podstawie daty?

Calculator gives what day of the week for the date specified by the user.