1. Pressure is defined as force per unit area that a fluid exerts on its surroundings.[1] For example, pressure, P, is a function of force, F, and area, A. P = F/A. A container full of gas contains innumerable atoms and molecules that are constantly bouncing of its walls.
Length of the day in Sydney is 10:03 hours. Civil twilight begins at 06:32:04 and ends at 17:29:15 hours. Nautical twilight in Sydney begins at 06:01:11 and ends at 18:00:08 hours. Astronomical twilight in Sydney begins at 05:30:58 and ends at 18:30:20 hours.
Weather in Sydney in June 2018. Expect 18Â°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Sydney in June. Check more long-term weather averages for Sydney in June before you book your next holiday to New South Wales in 2018. 1  Sydney weather overview. 2  Sydney monthly weather. 3  Sydney 5-day forecast. 4  New South Wales holidays. 5  New South Wales map. 6  More destinations. 7  Back to New South Wales.