Starting with hot water from the sink will help the water in the pot get hotter quicker.
boiling water.
If it is in boiling water the egg will cook, but the egg will cook before the water in the egg boils.
Salt - an impurity - elevates the boiling point of water. Egg will be cooking at a temperature higher than 100 degrees celsius.Denaturation of protein/cooking of egg will occur in less time.
Water + salt = a solution with a higher boiling point, which allows the eggs/pasta to cook in higher temperature. A higher temperature means that any living thing inside the egg is more likely to be killed. This makes the egg safer to eat. Additionally the egg would cook faster.
Yes, but not by much.
Poaching an egg is a form of cooking an egg in boiling water out of its shell
If you drop a hard boiled egg and a raw egg from the exact same height and at the exact same time, they will both break. So, neither is easier or harder to break. Its just that a hard boiled egg won't make as much of a mess as a raw egg when it cracks open.
Warm water also boils an egg but once the water reaches its boiling point that is 100C, the egg starts to fry faster and gets hardened
a egg cooks at aprox 65c so if it is poached in boiling water then it will cook
Sea level
To determine how you want to cook egg plant, you need to know what you want the egg plant to taste and feel like, but there are many fabulous recipes for egg plant that tell you how to cook it.
If water is boiling, it has reached 100C or 212F. The difference between water that is 'barely' boiling and water that is bubbling away like the pits of hades is probably no more than 1C and therefore not a critical difference when boiling an egg.