Category: Physics

What is the power of white noise? White noise is a CT stochastic process whose PSD is constant. Signal power is the integral of PSD over all frequency space. Therefore the power of white noise is infinite. No real physical process may have infinite signal power. What is an example of white noise? White noise […]

What color is pure iron? gray Is pig iron pure? Traditionally, pig iron was worked into wrought iron in finery forges, later puddling furnaces, and more recently, into steel. These are high purity pig irons and depending on the grade of ductile iron being produced these pig irons may be low in the elements silicon, […]

Can yelling affect my unborn baby? A calm and stress-free pregnancy is best for all concerned but now a new study suggests that partners who yell at a pregnant woman could be doing lasting harm that goes beyond the mum-robe’s own mental well-being. How can I make my pregnant wife happy? 10 Things You Must […]

Do mirrors enlarge things? Reflection from a Plane Mirror The image distance always equals the object distance. The size of the image is the same as the object (the mirror does not magnify the image). Does mirror make room look bigger? Use mirrors If you’ve ever wondered, “Do mirrors make a room look bigger?” the […]

What happens to the resistance of a light bulb as the filament gets brighter? A filament lamp is a common type of light bulb. It contains a thin coil of wire called the filament. This heats up when an electric current passes through it, and produces light as a result. The resistance of a lamp […]

¿Cómo era Juanito en el país sin punta? Juanito Pierdedía era un gran viajero. Viaja que te viaja, llegó una vez a un pueblo en que las esquinas de las casas eran redondas y los techos no terminaban en punta, sino en una suave curva. A lo largo de la calle corría un seto de […]

How do you reset a 12 volt battery? Mix ¼ Epsom salt with ¾ warm distilled water. You need a quart of this mixture for one cell. Pour the mixture into the cells and shake it around before letting it sit. Connect the charger for the battery and charge for 12 hours. Can dead batteries […]

What is CE configuration? Definition: The configuration in which the emitter is connected between the collector and base is known as a common emitter configuration. The input circuit is connected between emitter and base, and the output circuit is taken from the collector and emitter. What is the common base configuration? Definition: The configuration in […]

How do you find velocity with distance and angle? The equation for the distance traveled by a projectile being affected by gravity is sin(2θ)v2/g, where θ is the angle, v is the initial velocity and g is acceleration due to gravity. Assuming that v2/g is constant, the greatest distance will be when sin(2θ) is at […]

Which metal is a good conductor of electricity? Which Metal Conducts Electricity The Best? Material IACS (International Annealed Copper Standard) Ranking Metal % Conductivity* 1 Silver (Pure) 105% 2 Copper 100% 3 Gold (Pure) 70% Is honey is good conductor of electricity? Honey is a poor conductor because it is made largely of sugars called […]