Why water is a compound class 9? In water, two different elements combine together to form a single molecule. The elements are hydrogen and oxygen. The composition of water can be given as H2O in which two hydrogens combine with one oxygen atom in the ratio 2:1 to produce one molecule of water. How can […]
What is mean by lbs in weight?
How fast do electrons move in a vacuum?
How fast do electrons move in a vacuum? It is found that they travel very fast; with velocities of the order of one million (106) m/s or about ten million (107) miles per hour. This is approximately one one-hundredth the speed of light. The velocity of electrons depends upon how many cells make up the […]
What is the importance of understanding contemporary issues in society?
What is the importance of understanding contemporary issues in society? Answer. Answer: They develop into informed citizens and lifelong news readers. Studying current events helps students understand the importance of people, events, and issues in the news; it stimulates students to explore and learn more about the news, and to pay attention to the news […]
Who took the first selfie?
Who took the first selfie? Robert Cornelius Who invented camera first? Johann Zahn Who is known as the father of television? Philo T. Farnsworth Who is father of television in India? PV Krishnamoorthy Who invented TV first in India? B. Sivakumaran Who made television first in India? As for the first TV channel, the history […]
How is force multiplied in a hydraulic system?
How is force multiplied in a hydraulic system? Pascal’s law states that when there is an increase in pressure at any point in a confined fluid, there is an equal increase at every other point in the container. Applied to a more complex system below, such as a hydraulic car lift, Pascal’s law allows forces […]
What is the general rule for assigning oxidation numbers?
What is the general rule for assigning oxidation numbers? The oxidation number of a free element is always 0. The atoms in He and N2, for example, have oxidation numbers of 0. The oxidation number of a monatomic ion equals the charge of the ion. For example, the oxidation number of Na+ is +1; the […]
What are the benefits of packaging in marketing?
What are the benefits of packaging in marketing? Benefits of Packaging Packaging protects the product. Packaging keeps the product from going bad. Packaging decreases costs. Packaging informs. Packaging provides hygiene. Packaging means economy. Packaging is a preventive measure. What is the importance of packaging in marketing? At its most base level, product packaging serves to […]
What happens to the blood in the right ventricle?
What happens to the blood in the right ventricle? Blood first enters the heart’s right atrium. A muscle contraction forces the blood through the tricuspid valve into the right ventricle. When the right ventricle contracts, blood is forced through the pulmonary semilunar valve into the pulmonary artery. Then it travels to the lungs. What would […]
How can we change the path of light?
How can we change the path of light? Answer: The path of light can be changed by reflection and refraction. Reflection is when light bounces off an object. If the surface is smooth and shiny, like glass, water or polished metal, the lightwill reflect at the same angle as it hit the surface. What does […]