Which of the following noble gas is least Polarisable?

Which of the following noble gas is least Polarisable? Helium Why is argon a stable element? Nearly all of the argon in the Earth’s atmosphere is radiogenic argon-40, derived from the decay of potassium-40 in the Earth’s crust. The complete octet (eight electrons) in the outer atomic shell makes argon stable and resistant to bonding […]

Why is momentum not always conserved?

Why is momentum not always conserved? The total momentum of both objects does not change. For this reason we say that the total momentum of the interacting objects is conserved. Newton’s third law implies that the total momentum of a system of interacting objects not acted on by outside forces is conserved. Is angular momentum […]

Which of the following best describes a difference between artificial and natural selection?

Which of the following best describes a difference between artificial and natural selection? The following statement best describes the difference between artificial and natural selection: Natural selection acts without the input of humans: artificial selection requires human input. only via natural selection, genetic drift, migration, or mutation. Which best describes the role of mutations in […]

How long does aluminum take to decompose?

How long does aluminum take to decompose? around 250 years Why you shouldn’t drink from a can? A common ingredient in plastic bottles, Bisphenol A (or, BPA) is one of the most potentially dangerous things about a soft drink. A study from the American Heart Association in 2014 revealed that BPA leaching from cans could […]

How do you know if a spring is ideal?

How do you know if a spring is ideal? A ideal spring has an equilibrium length. If a spring is compressed, then a force with magnitude proportional to the decrease in length from the equilibrium length is pushing each end away from the other. How much force is needed to pull a spring with a […]

Are fault lines dangerous?

Are fault lines dangerous? Major active faults such as the Hayward Fault are associated with many hazards. The most obvious hazard is that of large earthquakes, which induce ground shaking over a large area that can cause heavy objects to fall and windows to shatter, and can cause structural damage to buildings and bridges. How […]

What does a circle around a weather station mean?

What does a circle around a weather station mean? A small circle is plotted on the map at the location where the weather measurements were made. The circle can be filled in to indicate the amount of cloud cover. Positions are reserved above and below the center circle for special symbols that represent different types […]

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