Category: Physics

Why does a flame go out when you cover it? Why does the flame go out when the jar is covering it? The substance that reacts with the candle wax is oxygen. So, when that oxygen is used up, the reaction can’t keep going. Running out of oxygen makes the flame go out. Why is […]

Is Mg 2+ an acid or base? According to the Lewis theory, an acid is an electron pair acceptor, and a base is an electron pair donor. Lewis bases are also Brønsted bases; however, many Lewis acids, such as BF3, AlCl3 and Mg2+, are not Brønsted acids. Is co2 a Lewis base? Carbon dioxide is […]

How many cubes does 0.5 cm have on the side? Hence, the required number of cubes is 64 cubes. How many cubes of side 5cm can be obtained from a cube whose volume is 8000 cubic cm? The cube’s volume is V= a^3. The “big” cube has a volume of 20^3 = 8000 cm^3. The […]

What are three important environmental laws? The six laws related to environmental protection and wildlife are: The Environment (Protection) Act, 1986; The Forest (Conservation) Act, 1980; The Wildlife Protection Act, 1972; Water (Prevention and Control of Pollution) Act, 1974; Air (Prevention and Control of Pollution) Act, 1981 and The Indian Forest Act, 1927. Why are […]

What is a complete life cycle? Complete metamorphosis and incomplete metamorphosis are two growth types of insects where the body form of insects changes during their lifecycle. Complete metamorphosis consists of four stages: egg, larva, pupa, and adult. However, the incomplete metamorphosis consists of three stages: egg, nymph, and adult. Do female mosquitoes die after […]

What is the main reason mountaintops are so cold? What is the main reason mountaintops are so cold? Mountaintops are above much of the greenhouse gas in the atmosphere. Light gases such as hydrogen move faster than heavier gases and escape from Earth’s gravitational field. Do terrestrial planets have layered interiors? The interiors have layers […]

What are the 2 saltiest bodies of water? The World’s Most Saline Bodies Of Water Rank Salinity (percentage) Name 1 44% Don Juan Pond 2 40% Lake Retba 3 35% Lake Vanda 4 35% Garabogazköl What is the saltiest food? Restaurants have the saltiest foods, Quader said….The report said the top 5 culprits were: Bread. […]

Is 32 degrees freezing or thawing? We’ve all been taught that water freezes at 32 degrees Fahrenheit, 0 degrees Celsius, 273.15 Kelvin. That’s not always the case, though. Scientists have found liquid water as cold as -40 degrees F in clouds and even cooled water down to -42 degrees F in the lab. At what […]

Which is the most liquid form of money? Cash How many times can you fold a dollar bill before it tears? According to CNBC, you would have to fold a bill back-and-forth about 4,000 times before it actually tears. Is half a $20 bill worth anything? If you have only half a bill, it is […]

Which structure of the eye is responsible for color vision? Cones are responsible for sharp, detailed central vision and color vision and are clustered mainly in the macula. Rods are responsible for night and peripheral (side) vision. How does the retina process visual information? Visual processing and, ultimately, visual fields begin in the retina. Light […]