Category: Physics

Do schizophrenics know right from wrong? People with the condition usually aren’t aware that they have it until a doctor or counselor tells them. They won’t even realize that something is seriously wrong. If they do happen to notice symptoms, like not being able to think straight, they might chalk it up to things like […]

Is water chemical energy? Water, like many substances, contains two kinds of energy. The first kind of energy is called kinetic energy. This is energy that is used during the execution of processes, such as movement. Because of kinetic energy water can flow and waves can exist. What form is energy stored in the human […]

What does 4 mean in the formula 4na2so3? Answer: The ‘4’ in front of sodium sulfate formula indicates that there are four molecules of sodium sulfate. What does the 4 mean in the formula 4na2so3 there are four atoms of sodium there are four atoms of sodium sulfite There are four molecules of sodium sulfite […]

What are some examples of interval data? Examples of interval data includes temperature (in Celsius or Fahrenheit), mark grading, IQ test and CGPA. These interval data examples are measured with equal intervals in their respective scales. Interval data are often used for statistical research, school grading, scientific studies and probability. How do you know if […]

Under what condition concave lens form a real image? Real images can be produced by concave mirrors and converging lenses, only if the object is placed further away from the mirror/lens than the focal point, and this real image is inverted. What does a concave lens do to an image? A lens refracts light and […]

How do you convert a smaller unit to a larger unit? To convert a smaller unit to a larger unit (eg to ), divide it by the number of smaller units which are needed to make. To convert from a larger unit to a smaller one, multiply. To convert from a smaller unit to a […]

Is a cookie sheet an insulator? It stops the flow of energy from moving through the material. Many objects that are meant for holding hot objects (soup containers, handles of pots and pans) are made out of heat insulators so that the heat will not transfer through the area it touches. For example, Ted is […]

How do I know if my carburetor is rich or lean? Typical symptoms of a rich mixture are: Poor fuel economy. Sluggish acceleration. Choke not needed from cold starts. Sooty or black spark plugs. Sooty or black muffler end pipes. Strong smell of gasoline when the machine is at idle. Uneven running (will often slow […]

What is the difference between rate constant and rate of reaction? A rate constant, k, is a proportionality constant for a given reaction….Differences between the rate of reaction and constant: Rate of Reaction Rate Constant It depends upon the concentration of the reactant It is independent of the concentration of the reactant. What is relation […]

How long does an overused muscle take to heal? For a mild strain, you may be able to return to normal activities within three to six weeks with basic home care. For more severe strains, recovery can take several months. In severe cases, surgical repair and physical therapy may be necessary. What is the longest […]