What did Pythagoras believe about the earth? An astronomical system positing that the Earth, Moon, Sun and planets revolve around an unseen “Central Fire” was developed in the 5th century BC and has been attributed to the Pythagorean philosopher Philolaus. Did Pythagoras go crazy? One of Pythagoras’ strangest obsessions with food was his relationship to […]
Can you boil water with a tealight candle?
What is sliding friction with example?
What is sliding friction with example? Specific examples of sliding friction include: Rubbing both hands together to create heat. A sled sliding across snow or ice. Skis sliding against snow. A person sliding down a slide is an example of sliding friction. What is the formula for sliding friction? The coefficient of friction (fr) is […]
Why is it important to use scientific method?
Why is it important to use scientific method? The scientific method attempts to minimize the influence of bias or prejudice in the experimenter. Even the best-intentioned scientists can’t escape bias. That’s the job of the scientific method. It provides an objective, standardized approach to conducting experiments and, in doing so, improves their results. Why is […]
Which is hotter magma or lava?
Which is hotter magma or lava? When geologists refer to magma, they’re talking about molten rock that’s still trapped underground. If this molten rock makes it to the surface and keeps flowing like a liquid, it’s called lava. They’re also the hottest variety of magma, reaching temperatures between 1,800 degrees to 2,200 degrees Fahrenheit. Whats […]
What is the most heat conductive liquid?
What is the most heat conductive liquid? Water Why is heat transfer important for thermal fluid design? The key point behind heat transfer fluid technology is the ability to generate high temperatures at low system pressures. Heat transfer fluid technology offers safety, low maintenance, and extending operating lifetimes when compared to traditional technologies such as […]
What cells do plants have that animals don t?
What cells do plants have that animals don t? Animal cells have centrosomes (or a pair of centrioles), and lysosomes, whereas plant cells do not. Plant cells have a cell wall, chloroplasts, plasmodesmata, and plastids used for storage, and a large central vacuole, whereas animal cells do not. Why are plant cells Square? Plant cells […]
When would a sailboat be the give-way vessel?
When would a sailboat be the give-way vessel? Paths That Cross: The power-driven vessel is the give-way vessel. The sailing vessel is the stand-on vessel. Overtaking: The vessel that is overtaking another vessel is the give-way vessel, regardless of whether it is a sailing vessel or a power-driven vessel. The vessel being overtaken is always […]
Which type of reaction releases energy quizlet?
Which type of reaction releases energy quizlet? Chemical reactions that release energy, usually in the form of heat, are called exothermic reactions. Chemical reactions that absorb energy, usually in the form of heat, are called endothermic reactions. Many types of reactions can be endothermic or exothermic. How is energy released in a chemical reaction quizlet? […]