How do we use infrared waves in everyday life? Infrared (IR) light is used by electrical heaters, cookers for cooking food, short-range communications like remote controls, optical fibres, security systems and thermal imaging cameras which detect people in the dark. The heating effect of IR can cause burns to the skin. Can deer see IR […]
When a slab of dielectric medium is placed between plates of a parallel plate capacitor which is connected with a battery then the charge on plates in comparison with earlier charge?
When a slab of dielectric medium is placed between plates of a parallel plate capacitor which is connected with a battery then the charge on plates in comparison with earlier charge? Two identical capacitors are connected as shown in the figure. A dielectric slab is introduced between the plates of one of the capacitors so […]
What is one of the most important developmental tasks in late adulthood?
What is one of the most important developmental tasks in late adulthood? Newman and Newman (2012) identify developmental tasks as areas of learning for most people in modern society. They associate the stage of later adulthood (60 to 75) with such tasks as accepting one’s life, redirecting energy toward new roles, promoting intellectual vigor and […]
What temperature should I wash white bed sheets on?
What temperature should I wash white bed sheets on? Use the hottest water setting on your washing machine that’s safe for the material. Polyester blends are best washed using warm water, while cotton can tolerate hot water. Hotter water kills the most germs and takes care of dust mites that thrive in bedding. How long […]
Is deceleration a physics word?
Is deceleration a physics word? Rick suggests: “Deceleration” is not actually a term in physics. It is only an English word used in common speech, meaning “a decrease in speed.” The problem with this word is that some students mistake it to mean the same as negative acceleration. Is deceleration a vector quantity? In a […]
What is the coating on the inside of a light bulb?
What is the coating on the inside of a light bulb? The white powder coating inside the glass tubing of a CFL contains a fluorescent coating. When electricity enters a CFL, mercury and argon fumes inside the bulb produce invisible ultraviolet (UV) light. This UV light reacts with the fluorescent coating to produce the white, […]
How do you cancel out a log?
What does a horizontal line indicate?
What does a horizontal line indicate? A horizontal line is commonly used in technical analysis to mark areas of support or resistance. A horizontal line runs parallel to the x-axis. In technical analysis, the horizontal line is typically drawn along a swing high, or a series of them, where each high in the series stopped […]
How can I strengthen my weak muscles naturally?
How can I strengthen my weak muscles naturally? While a program of aerobic activity – brisk walking, jogging, swimming – may boost your energy level, the only way to strengthen muscles is through strength training or “resistance” exercise (in other words, weight lifting). And be prepared to work pretty hard at it. What exercise gets […]