What are 3 examples of a chemical property? Examples of chemical properties include flammability, toxicity, acidity, reactivity (many types), and heat of combustion. Iron, for example, combines with oxygen in the presence of water to form rust; chromium does not oxidize (Figure 2). Is size a chemical property? Any such characteristic of a material that […]
What is the point of a lightning rod?
What is the point of a lightning rod? While lightning rods help protect a structure from a direct lightning strike, a complete lightning protection system is needed to help prevent harmful electrical surges and possible fires caused by lightning entering a structure via wires and pipes. Does my house need a lightning rod? Statistically, lightning […]
Which is faster ship or submarine?
Which is faster ship or submarine? A submarine can be faster than a boat. Nuclear power allows submarines to go faster than surface ships. (This may be true.) The fastest submarine is claimed to be the Soviet K-162, launched in 1969, with a top speed of 44.7 knots (82.8 km/hr). What is the fastest Navy […]
Which link is missing from this food chain?
Which link is missing from this food chain? The decomposer is missing. The rabbit is the herbivore, the raspberry bush is the producer, and the owl is the consumer. The decomposer is the only thing not on there. Why are plankton important to marine ecosystems? Phytoplankton are vital to marine ecosystems. They are producers, or […]
Which of the following would be a potential safety hazard of indoor recreation?
Which of the following would be a potential safety hazard of indoor recreation? A potential safety hazard of indoor recreation is letter d – a liquid spill on the floor that was not cleaned. Is it important to take the weather into account when you are planning water activities? It is unimportant to take the […]
Is electricity free in Iceland?
Is electricity free in Iceland? The average monthly household electricity bill in Iceland is $20 – $30. This includes heating and water. The majority of Icelandic houses are heated by geothermal water. Iceland’s streets are heated by geothermal water so they do not become slippery in winter. How did Reykjavik get its name? Our historical […]
Why is US East Coast colder than West?
Why is US East Coast colder than West? Land has a lower heat capacity than oceans, and it also heats and cools faster than oceans. During the winter, land is much colder than the oceans. When the westerly winds blow over it, the air cools substantially. Thus, the East Coast experiences extreme cold weather during […]
What is the best ISO for night photography?
Who is the father of astrology?
Who is the father of astrology? Alan Leo How much of astrology is true? Belief that astrology was at least partially scientific was 76%, but belief that horoscopes were at least partially scientific was 43%. In particular, belief that astrology was very scientific was 26% while that of horoscopes was 7%. Which planet causes death? […]
What is the work required to move a charge along an equipotential?
What is the work required to move a charge along an equipotential? The potential is the same along each equipotential line, meaning that no work is required to move a charge anywhere along one of those lines. Work is needed to move a charge from one equipotential line to another. Equipotential lines are perpendicular to […]