What is required for charges to leave an object? The object being charged ends up with a charge which is the opposite of the object being used to charge it. A ground must be used to charge on the object. The ground allows for electron movement into or out of the object being charged. When […]
Does light slow down in glass?
Does light slow down in glass? We all know that light bends when it travels through glass, water, or other transparent material. Electromagnetic waves simply travel slower through glass than through air. So the wave crests are closer to each other, but the light still oscillates the same number of times per second. It stays […]
What acetone Cannot dissolve?
What acetone Cannot dissolve? Many kinds of plastic do not dissolve in acetone. Polypropylene and nylon are unaffected, PTFE unsurprisingly handles it just fine as well. Two kinds of plastic that do dissolve in acetone are PVC and polystyrene. Why is nail polish soluble in acetone but not in water? Nail varnish does not dissolve […]
How can we help you or how may we help you?
How can we help you or how may we help you? The more polite expression is “How may I help you?” (“may,” not “many”). You will also hear people say “How can I help you?” To the punctilious, “may” is preferable to “can,” but both expressions are gracious and acceptable, much better than “Whassup?” How […]
Which biogeochemical cycles are key to life?
Which biogeochemical cycles are key to life? The nitrogen cycle is another biogeochemical cycle critical to life (Fig. 6.10). Nitrogen is especially important to ecosystem dynamics because many ecosystem processes, such as primary production and decomposition, are limited by the available supply of nitrogen. Which biogeochemical cycle is most important? carbon cycle Which cycle is […]
How far should your low beams go?
Why did Germany not invade Sweden?
Why did Germany not invade Sweden? Hitler did not invade Sweden because he did not want to waste valuable troops in Scandinavia when he had other concerns. The Swedes proved their neutrality by not letting Germany use Swedish airspace: when the Germans flew over Sweden to attack Norway, the Swedes fired back with anti-aircraft guns. […]
What does it mean if the bottom number of your blood pressure is over 100?
What does it mean if the bottom number of your blood pressure is over 100? The next stage of hypertension, stage 2 hypertension, is diagnosed when your systolic pressure is 160 mm Hg or higher or your diastolic pressure is 100 mm Hg or higher. A diagnosis of hypertension means that you need treatment to […]
Does touch up paint last?
How do you describe an irregular galaxy?
How do you describe an irregular galaxy? An irregular galaxy is the catchall name given to any galaxy that does not neatly fit into one of the categories of the Hubble classification scheme. They have no defined shape nor structure and may have formed from collisions, close encounters with other galaxies or violent internal activity. […]