Category: Physics

What happens to a rock when heat and pressure were added? Metamorphic rocks form when heat and pressure transform an existing rock into a new rock. Contact metamorphism occurs when hot magma transforms rock that it contacts. Regional metamorphism transforms large areas of existing rocks under the tremendous heat and pressure created by tectonic forces. […]

What is the valence of K+? eight Why does K have no valence electrons? Elemental potassium has an [Ar] 4s1 electron configuration. One would say it has one valence electron. If we take that one valence electron away, it makes sense to say that it now has zero valence electrons because “1 – 1 = […]

Is Hannibal a cannibal? Hannibal Lecter M.D. (born January 20, 1933) is a Lithuanian-American serial killer, notorious for consuming his victims, earning him the nickname “Hannibal the Cannibal”. Orphaned at a young age, Lecter moved to the United States of America, becoming a successful psychiatrist. Is Hannibal Lecter a real person? Alfredo Ballí Treviño: The […]

When the sun warms the sidewalk on a hot sunny day what type of energy conversion occurs? When the sun warms the sidewalk on a hot sunny day, radiant to thermal energy conversion occurs. When a bow is stretched back and an arrow is shot what type of energy conversion has occurred? The type of […]

Is fabric a good insulator? Fabrics like wool and fleece are great insulators and will keep your body warm over an extended period of time. On the reverse side, fabrics like lace and cotton don’t hold heat well, and won’t keep your body warm very long. What fabric holds heat the best? Wool Is polyester […]

What does a yellow buoy mark? These marks are used to mark a special feature or area. These include area limits for anchorages, fishing grounds, or dredging/spoil areas. These buoys may be lighted, and if they are it will be a fixed or flashing yellow light. What do the buoy colors mean? Navigational Signals From […]

Where does the dependent variable go in a hypothesis statement? A hypothesis states a presumed relationship between two variables in a way that can be tested with empirical data. It may take the form of a cause-effect statement, or an “if x,…then y” statement. The cause is called the independent variable; and the effect is […]

What is the velocity of a sound wave traveling through air at a temperature of 18 degrees C? 343m/s. Why is the speed of sound through medium C 0 M s? This is because molecules in a solid medium are much closer together than those in a liquid or gas, allowing sound waves to travel […]

What happens if your electric car runs out of battery? “What happens if my electric car runs out of electricity on the road?” Answer: In the case of a gas car, a roadside service truck can usually bring you a can of gas, or tow you to the nearest gas station. Similarly, an electric car […]

What is the substance that gets dissolved called? solutes What happens when the temperature of a saturated sugar solution is increased? When the Temperature of a Saturated Sugar Solution is Increased, It Would Become Unsaturated Due to Increase in Solubility of the Solute. What do you observe when you heat a saturated solution of sugar? […]