Category: Physics

How is ionosphere important for us? the ionosphere is important because it reflects and modifies radio waves used for communication and navigation. Other solar phenomena, such as flares, and changes in the solar wind and geomagnetic storms also effect the charging of the ionosphere. How high up is the ionosphere? about 48 kilometers Is the […]

What are the 3 types of lubricants? There are three main types of lubricants: oil-based, water-based, and silicone-based. The best lubricant for women depends on their needs. What lube lasts the longest? Coconut Oil What solid lubricant is best? PTFE and graphite are well known as good solid lubricants. They wear off from the friction […]

What are the two end products of aerobic respiration? End products of aerobic respiration are carbon dioxide, water and energy in the form of (38) ATP. What is the importance of cellular respiration in our everyday life? The Purpose Cellular Respiration Cellular respiration is the process by which cells in plants and animals break down […]

What is the fastest diffusion? Diffusion is fastest through gases, followed by liquid, then plasma, and lastly, solids. In chemistry, diffusion is defined as the movement of matter by the random motions of molecules. How do you know how fast a gas will diffuse? It states that the diffusion rate of a gas is inversely […]

How damaging is a sonic boom? Damage due to a sonic boom is possible in light building components which have a large surface and consist of a material with a low tensile strength. Damage is very rare at overpressures up to about 500 N/m* and can only occur at points at which there were earlier […]

What happens if you touch stomach acid? Hydrochloric acid can cause damage if it comes into contact with your lungs, eyes, stomach, or skin. If hydrochloric acid comes into contact with your skin, it can cause: chemical burns. scarring. What could stomach acid dissolve? Keep in mind that battery acid can dissolve materials like metal […]

What are the methods of investigation? Scientists use different methods of investigation in different circumstances. These methods include (in no particular order) fair testing, identifying and classifying, modelling, pattern seeking, and researching. What do descriptive and comparative investigations have in common? Descriptive Investigation: Involve describing and/or quantifying parts of a natural system. Example – observing […]

What is the cheapest oil has ever been? On 23 December 2008, WTI crude oil spot price fell to US$30.28 a barrel, the lowest since the financial crisis of 2007–2008 began. Will oil go up to $100 a barrel? Bank of America now sees oil spiking over $100 a barrel from time to time over […]

How does convection affect the inside of the earth? Inside Earth, the convection of mantle material is thought to cause the movement of the overriding crustal plates, resulting in events such as earthquakes and volcanic eruptions. Where is the Moho interface? The Moho lies almost entirely within the lithosphere. Only beneath mid-ocean ridges does it […]

Is Can you please a question? Senior Member. “Can” and “could” are both equally polite – the key word is “please”, which is present in both sentences. The sentence beginning with “please can…” is a question, and it should have a question mark. It is a mistake/omission by the writer. Could you please help me […]