Category: Physics

Who controls the oil market? OPEC can influence world oil supplies and prices OPEC includes countries with some of the world’s largest oil reserves. As of the end of 2018, OPEC members controlled about 72% of total world proved oil reserves, and in 2018, they accounted for 41% of total world crude oil production. Who […]

How do you add two vectors using their components? Again, the component method of addition can be summarized this way: Using trigonometry, find the x-component and the y-component for each vector. Add up both x-components, (one from each vector), to get the x-component of the total. Add up both y-components, (one from each vector), to […]

What color of light has the highest frequency? Violet waves What is the depression of light? Dispersion of light is caused by the change of speed of light ray (resulting in angle of deviation) of each wavelength by a different amount. Note: White light comprises of seven visible colours (VIBGYOR) whereas black (or dark) signifies […]

Is there gravity in a vacuum? In a vacuum, gravity causes all objects to fall at the same rate. The mass of the object does not matter. If a person drops a hammer and a feather, air will make the feather fall more slowly. But if there were no air, they would fall at the […]

What do NS stand for? Acronym Definition NS Nintendo Switch NS Not Sure (survey response) NS Natural Selection NS National Security What does NS mean in dating? Old Style (O.S.) and New Style (N.S.) indicate a dating system from before and after a calendar change, respectively. Usually this is the change from the Julian calendar […]

What happens if you put a pencil in a glass of water? As you sight at the portion of the pencil that was submerged in the water, light travels from water to air (or from water to glass to air). This light ray changes medium and subsequently undergoes refraction. As a result, the image of […]

What can affect a compass reading? Metal that has a lot of iron in it’known as ferrous metal?can impact a compass. A large object such as a car or tower can draw the magnetized needle, making a precise reading difficult to secure. Even soil with a lot of iron in it can tweak your results. […]

Are astrology predictions true? Is it possible that all astrology predictions come true? You might be wondering how all astrology predictions can be right. The answer is “no”. Astrologers are our fellow human beings and not Gods. Does horoscope match really matter? There is one thing that the study didn’t account for—how horoscopes might in […]

What is another term for position of an object? orientation. noun. the position of an object, or the direction in which it is pointing. What is the symbol of second? s Why is it called a second? Historical origin Originally, the second was known as a “second minute”, meaning the second minute (i.e. small) division […]

Is Earth losing its atmosphere? A pair of researchers from Toho University and NASA Nexus for Exoplanet System Science has found evidence, via simulation, that Earth will lose its oxygen-rich atmosphere in approximately 1 billion years. What would happen if we lost gravity? If the Earth’s gravity did just suddenly disappear we would no longer […]