How do you add a function? Operations on Functions: Adding and Subtracting Functions Addition. We can add two functions as: (f + g)(x) = f(x) + g(x) Example: Subtraction. We can subtract two functions as: (f – g)(x) = f(x) – g(x) Example: Multiplication. (f•g)(x) = f(x)•g(x) Example: f(x) = 3x – 5 and g(x) […]
Which unit is used to measure the speed of computer?
Which unit is used to measure the speed of computer? Clock speed is measured in units of cycles per second, which is called a Hertz (Hz). Computer boards and CPUs run at rates of millions and billions of Hertz, megahertz (MHz) and gigahertz (GHz). What unit is typically used to measure the speed of a […]
Will a diode reduce voltage?
Will a diode reduce voltage? Diodes allow electricity to flow in only one direction, but a diode will only conduct electricity, when the supply reaches its threshold. The threshold for common silicon diodes is 0.6 volts. After each diode, the voltage can be seen to drop by 0.6 volts. In this way, diodes can be […]
What is spectrophotometer and its uses?
What is spectrophotometer and its uses? A spectrophotometer is an analytical instrument used to quantitatively measure the transmission or reflection of visible light, UV light or infrared light. Applications for specs include measurement of substance concentration such as protein, DNA or RNA, growth of bacterial cells, and enzymatic reactions. What is spectroscopy principle? What Is […]
How do you determine if there is a hydraulic jump?
How do you determine if there is a hydraulic jump? A hydraulic jump occurs when the upstream flow is supercritical (F>1). To have a jump, there must be a flow impediment downstream. The downstream impediment could be a weir, a bridge abutment, a dam, or simply channel friction. Water depth increases during a hydraulic jump […]
How long was John Adams away from his wife?
How long was John Adams away from his wife? Abigail and John Adams would endure long periods of separation for the first fifteen years of their marriage. What made John Adams a good president? Learned and thoughtful, John Adams was more remarkable as a political philosopher than as a politician. When Adams became President, the […]
What is oxygenated blood called?
What is oxygenated blood called? Oxygenated blood is also called arterial blood as the arteries deliver oxygenated blood to different parts of the body through the pulmonary veins. Where does oxygenated blood come from? Blood enters the right atrium and passes through the right ventricle. The right ventricle pumps the blood to the lungs where […]
Why can self-heating cans be used only once?
Why can self-heating cans be used only once? Answer: Self-heating food packaging is active packaging with the ability to heat food contents without external heat sources or power. Packets typically use an exothermic chemical reaction. Why self-heating cans are very expensive? Self-heating cans have dual chambers, one surrounding the other, making a self-heating food package. […]
What two forces limit the height of capillary action will take water up a tube?
What two forces limit the height of capillary action will take water up a tube? Capillary action occurs when the adhesion to the walls is stronger than the cohesive forces between the liquid molecules. The height to which capillary action will take water in a uniform circular tube (picture to right) is limited by surface […]
What is the effect of molecular weight on melting and boiling points of alkanes?
What is the effect of molecular weight on melting and boiling points of alkanes? Their melting and boiling points of alkanes are relatively low. The higher the molecular weight (the greater the number of carbons), the higher the boiling point. What is the major use of alkanes? Use of Alkanes Alkanes are important raw materials […]