What are the disadvantages of modern periodic table? What are the disadvantages of modern periodic table? Position of hydrogen is not satisfactory, it can be placed either in group I or 17 group of the first period. It fails to accommodate lathanides and actinides in the main body of the periodic table. These are kept […]
Is a Van de Graaff positive or negative?
Is a Van de Graaff positive or negative? Most Van de Graaff generators build up a positive electric charge on their domes by separating negative electric charge from positive electric charge. This is accomplished by a rotating insulated belt. When two different materials are rubbed together, one object takes away electrons from the other object. […]
Which traffic light should lit after Green at Junction?
Which traffic light should lit after Green at Junction? A: In case the green light is lit and you are already in the intersection, and then the light turns yellow or even red, for that matter, you will need to complete your turn. What does the green light indicate? To green-light is to give permission […]
What is the eight second rule?
What is the eight second rule? The eight-second rule is key in digital marketing. It represents the length of time an e-mail sender has to convince a recipient to engage with the e-mail received or to convince a visitor to stay on a particular website. “The rule applies to first time visitors who are unfamiliar […]
Which mirror is used in headlight of a car?
Which mirror is used in headlight of a car? Concave mirror is used in headlights of vehicles, because when the bulb of headlight is placed at focus of concave mirror, it allows the light to spread out to infinity (longer distances). A concave mirror is a converging mirror as opposed to a convex mirror which […]
Is skateboarding hard to learn?
Is skateboarding hard to learn? Skateboarding isn’t hard to learn if you start at the basics. Learning how to balance, carve, and push properly will be beneficial once you start learning tricks like ollies, shuvits, and kickflips. Many beginners make the mistake of going for harder tricks without even knowing how to properly ride a […]
What is the second stage of man?
What are the factors affecting child development?
What are the factors affecting child development? 10 Factors That Influence the Growth and Development of a Child Heredity. Heredity is the transmission of physical characteristics from parents to children through their genes. Environment. Sex. Exercise and Health. Hormones. Nutrition. Familial Influence. Geographical Influences. How do you provide nurturing environment for your child? 6 Nurturing […]
What happens when tension is doubled?
What happens when tension is doubled? The velocity of a travelling wave in a stretched string is determined by the tension and the mass per unit length of the string. So, if we double the tension the speed will increase 1.41 times or root (2) times. Why is velocity not proportional to wavelength? The greater […]