Why heating an air parcel causes it to rise? Warm air rises primarily due its lower density as compared to cooler air. As the temperature increases, the density of the air decreases. As the denser air reaches the earth’s surface it spreads and undercuts the less dense air which, in turn, forces the less dense […]
What solutions are there to global warming?
What solutions are there to global warming? For example, improvements to energy efficiency and vehicle fuel economy, increases in wind and solar power, biofuels from organic waste, setting a price on carbon, and protecting forests are all potent ways to reduce the amount of carbon dioxide and other gases trapping heat on the planet. Are […]
What is diagram example?
What is diagram example? In science the term is used in both ways. For example, Anderson (1997) stated more generally: “diagrams are pictorial, yet abstract, representations of information, and maps, line graphs, bar charts, engineering blueprints, and architects’ sketches are all examples of diagrams, whereas photographs and video are not”. Why is a diagram important? […]
When an object is kept at any distance?
When an object is kept at any distance? Answer. Answer:Virtual,erect and diminished. When an object is kept at any distance in front of a concave lens the image is formed Always? A concave lens always forms a virtual, erect and diminished image. Which of the following can form a virtual image which is always smaller […]
What is the functionalist theory in sociology?
What is the functionalist theory in sociology? The functionalist perspective sees society as a complex system whose parts work together to promote solidarity and stability. This approach looks at society through a macro-level orientation and broadly focuses on the social structures that shape society as a whole. Why is functionalist perspective important? Functionalism emphasizes the […]
Why did Rutherford conclude?
Why did Rutherford conclude? Rutherford deduced that the atomic nucleus was positively charged because the alpha particles that he fired at the metal foils were positively charged, and like charges repel. He also concluded that the electrons orbit the nucleus like the planets orbit the sun. Is gold leaf one atom thick? And doing a […]
Is praseodymium man made?
Is praseodymium man made? He was correct about lanthanum being a new element, but he was wrong about didymium. This new “element” turned out to be a mixture of two other new elements, now called neodymium and praseodymium. The man who made this discovery was Auer. How was praseodymium named? Discovery: Swedish chemist Carl Gustav […]
What is the negative connection in a battery called?
Which waves can carry information?
Which waves can carry information? While many different types of EMF are used to convey information over distance, the most common are radio waves, also called radiofrequencies. This is a wide spectrum ranging from tens of kilohertz to 300 gigahertz. Within this spectrum, frequency bands are allocated to each use. How do we use waves? […]
What is the best pedaling technique?
What is the best pedaling technique? Here are their top tips to pedalling properly. Get your bike set up correctly. To see this content you need to update your cookie settings. Play with cadence. Aim for even power distribution – and try mountain biking. Practise single leg drills. Pull your pedals in semicircles. Work on […]