Category: Physics

At what speed do airbags become ineffective? For unbelted occupants the effectiveness goes to zero or becomes negative above 40 kph (25 mph) for MAIS 3+, and for belted occupants the effectiveness stays positive but with significantly lower magnitude for speeds above 40 kph (25 mph). What if my airbags didn’t deploy? If your airbag […]

What is sinking give example? Sink is defined as to go down slowly, or to drop beneath the surface or normal level. An example of to sink is to drop down to a D average in a class. An example of to sink is for a boat to go beneath the surface of the water. […]

What kinds of money are included in M1? M1 money supply includes those monies that are very liquid such as cash, checkable (demand) deposits, and traveler’s checks. M2 money supply is less liquid in nature and includes M1 plus savings and time deposits, certificates of deposits, and money market funds. How do you calculate M1? […]

What color is the hottest flame blue or white? The hottest flame is violet on the color spectrum and white in the visible spectrum. The type of fuel and impurities, in addition to the flame temperature, contribute to the color of the flame. How do you make a blue flame? Magnesium sulfate: Makes a white […]

Does tennis ball have to bounce? The ball must first bounce out before the player can touch it. Also, a player loses a point if his/her clothing makes contact with the ball, or his/her hand that is holding the racket touches the ball during a shot. Therefore, oddly enough, a player who hits his/her opponent […]

How do you describe a theory? A theory is a well-substantiated explanation of an aspect of the natural world that can incorporate laws, hypotheses and facts. A theory not only explains known facts; it also allows scientists to make predictions of what they should observe if a theory is true. Scientific theories are testable. How […]

What are the 5 factors of evolution? Five different forces have influenced human evolution: natural selection, random genetic drift, mutation, population mating structure, and culture. All evolutionary biologists agree on the first three of these forces, although there have been disputes at times about the relative importance of each force. What is the main cause […]

Which era is called the Age of Mammals? Cenozoic What is the oldest era? Paleozoic Era What do you call the present era? Currently, we’re in the Phanerozoic eon, Cenozoic era, Quaternary period, Holocene epoch and (as mentioned) the Meghalayan age. The Greenlandian, the oldest age of the Holocene (also known as the “lower Holocene”), […]

WHY BE is not noble gas? At the top of the noble gases is little helium (He), with a shell that is full with only two electrons. The fact that their outer shells are full means they are quite happy and don’t need to react with other elements. In fact, they rarely combine with other […]

Are ecoregions bigger than ecosystems? An ecoregion (ecological region) or ecozone (ecological zone) is an ecologically and geographically defined area that is smaller than a bioregion, which in turn is smaller than a biogeographic realm. What is an example of an ecoregion? Ecoregions are defined by soil type, climate, temperature, precipitation and other characteristics. For […]