What happens if atmospheric pressure is too high? As the pressure decreases, the amount of oxygen available to breathe also decreases. At very high altitudes, atmospheric pressure and available oxygen get so low that people can become sick and even die. What is considered high pressure weather? A barometer reading of 30 inches (Hg) is […]
What are reactants examples?
What are reactants examples? Reactants are substances initially present in a chemical reaction that are consumed during the reaction to make products. Some chemical reactions go to completion, resulting in all of the reactants becoming products. These reactions are said to be irreversible. For example, burning methane in oxygen is irreversible. What are the 7 […]
What proves a permanent magnet?
What proves a permanent magnet? A high magnetic ordering temperature (called the “Curie temperature” or Tc), below which the material is spontaneously magnetic. A large remanent magnetic flux (called “remanence” or Br) maintained in the absence of an external magnetic field. A strong resistance to demagnetization (called “coercivity” or Hc) What is the strength of […]
How do you trick a motion sensor?
How do you trick a motion sensor? Most motion detectors, even newer ones, use infrared to detect significant changes in the surrounding room’s temperature, Porter said. Normally, walking around in a room would set off these sensors, but using something as simple as a piece of styrofoam to shield your body can trick them, he […]
What is say is a path of electricity one word answer?
What is say is a path of electricity one word answer? An electric circuit is a path in which electrons from a voltage or current source flow. The point where those electrons enter an electrical circuit is called the “source” of electrons. Is a closed path that allows electricity to flow from one point to […]
What is reverse causality example?
What is reverse causality example? According to Katz (2006), identifying reverse causality is sometimes a matter of “common sense.” For example, a study might find that brown spots on the skin and sunbathing are linked. While it is plausible that sunbathing can cause brown skin spots, it’s highly unlikely that the brown spots cause sunbathing. […]
Is flammability a physical or chemical property?
Is flammability a physical or chemical property? Chemical properties are properties that can be measured or observed only when matter undergoes a change to become an entirely different kind of matter. They include reactivity, flammability, and the ability to rust. Is odor a physical or chemical property? Properties that can be determined without changing the […]
What does the shape of a route sign tell you?
What does the shape of a route sign tell you? These signs are square or rectangular shaped, and are blue with white let ters or symbols. They show the location of various services; such as rest areas, gas stations, campgrounds or hospitals. The shape of route signs indicate the type of road- way, interstate, U.S., […]
What taxes were put on the colonists?
What taxes were put on the colonists? The laws and taxes imposed by the British on the 13 Colonies included the Sugar and the Stamp Act, Navigation Acts, Wool Act, Hat Act, the Proclamation of 1763, the Quartering Act, Townshend Acts and the Coercive Intolerable Acts. What did Great Britain do to the colonists? The […]
How true is the movie Cool Runnings?
How true is the movie Cool Runnings? Considered one of the best “underdog” sports movies of all time, Cool Runnings (1993) was inspired by the true story of the first Jamaican national bobsleigh team. Did the Jamaican bobsled team ever win a medal? They qualified for the 1994 Winter Olympic Games in Lillehammer, Norway. Critics […]