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?
How photon is created?
How photon is created? A photon is produced whenever an electron in a higher-than-normal orbit falls back to its normal orbit. During the fall from high energy to normal energy, the electron emits a photon — a packet of energy — with very specific characteristics. A sodium vapor light energizes sodium atoms to generate photons. […]
Is iron rusting in the presence of moist air a physical change?
Is iron rusting in the presence of moist air a physical change? Rust is a reddish-brown substance formed on iron when it has been exposed to fresh air and moisture for a long time. This process is a chemical change called rusting. What is the chemical reaction of rusting? Rusting is an oxidation reaction. The […]
What do NS stand for?
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 is the speed and direction of an object?
What is the speed and direction of an object? Speed in a given direction is called velocity. What can you deduce if your distance is negative? Technically no. Negatives are usually associated with displacement, where one direction is considered positive and the opposite is considered negative. Distance is just how far you have travelled. Does […]
Who controls the oil market?
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 […]
What pans can you use in a convection oven?
What pans can you use in a convection oven? Convection ovens work well with aluminum or light-colored metal baking pans. You can also use dark or anodized pans in your convection oven, but if you are not careful, you might end up with over-browned food. You can use a flat, thin aluminum pan to bake […]
Which shows the formula for converting from kelvins to degrees Celsius?
Which shows the formula for converting from kelvins to degrees Celsius? C = K – 273.15. This formula to convert the temperature in Kelvin to degree Celsius is used for changing the given temperature from Kelvin to degree Celsius. What causes liquid in thermometer to drop? When heated, the molecules of the liquid in the […]
Are astrology predictions true?
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 […]