Article Writing Homework Help

I will pay for the following article Fire Protection. The work is to be 4 pages with three to five sources, with in-text citations and a reference page. Even if is not the primary extinguishing agent, it may be found combined with other agents such as foam or may be used extensively for cooling containers in liquid petroleum gas (LPG) fires. It is essential that every fire fighter understand the behaviour of water in difference circumstances.

Most of the motions that we find on earth involve friction. Friction is a force which occurs when two surfaces rub against one another. If you roll a ball slowly across the floor, the ball’s speed decreases and eventually it stops. It stops because the friction between the ball and the floor pushes against the ball and reduces its motion. When you rub your hands together, you feel the resistance due to friction. By rubbing your hands together, you are doing work. The result of this work is the heat produced.

Water when pure is colourless, odourless, and liquid with a molecular composition to two atoms of hydrogen combined with one atom of oxygen. A liter of water has a mass of 1 kilogram (1 kg), corresponding to a downward force of 9.81 newtons (N). A cubic meter of water exerts a downward force of 9810 N, or 9.81 kilonewtons (kN). This is more commonly reckoned as 10 kN. The mass of water varies with the degree of purity. Ordinary sea water ‘weighs’ approximately 10.0 newtons per liter (N/litres).