What is the basic assumption of Debye theory? In contrast to the Einstein theory of specific heat, which assumes that each atom has the same vibrational frequency, Debye postulated that there is a continuous range of frequencies that cuts off at a maximum frequency νD, which is characteristic of a particular solid. What are the […]
When you are climbing stairs work done by weight is positive true or false?
When you are climbing stairs work done by weight is positive true or false? There is no work being done by the ladder/stairs. The man exerts a force on the stairs but as long as the stairs don’t move, there is no energy being transferred. Work equals force times distance and this case the distance […]
Can magenta ever appear green?
Can magenta ever appear green? Magenta absorbs its complementary color – green. Thus, green is subtracted from cyan light. That leaves blue light to be transmitted by the filter. For this reason, the filter will appear blue when illuminated with cyan light. What allows us to see green? Long wavelengths stimulate red cones. Short wavelengths […]
What should be avoided while anchoring?
What should be avoided while anchoring? Never tie the line to the stern: the additional weight could bring on water. Slowly lower the anchor from the bow, rather than the stern, to avoid capsizing or swamping. When the anchor has hit bottom—and sufficient rode is given out—give a solid pull to set the anchor. Secure […]
What does the 80 in bromine 80 represent?
What is the difference between qualitative and quantitative data?
What is the difference between qualitative and quantitative data? What’s the difference between qualitative and quantitative research? Quantitative data is information about quantities, and therefore numbers, and qualitative data is descriptive, and regards phenomenon which can be observed but not measured, such as language. What do you mean by qualitative data? Qualitative data describes qualities […]
Can a theory be a law?
Can a theory be a law? A theory does not change into a scientific law with the accumulation of new or better evidence. A theory will always remain a theory; a law will always remain a law. Both theories and laws could potentially be falsified by countervailing evidence. Theories and laws are also distinct from […]
Can you build an arc reactor?
Can you build an arc reactor? The concept of the arc reactor doesn’t work in real life because it violates the Law of Conservation of Energy. Energy can’t be created or destroyed, only transferred. The arc reactors in the MCU are essentially perpetual motion machines, which don’t work. Instead, this arc reactor is powered by […]
Is magnesium hard or soft?
Is magnesium hard or soft? Magnesium is a silvery-white, lustrous, and relatively soft metal which tarnishes slightly in air. Magnesium is the third most commonly used structural metal following steel and aluminum. What is hardness affected by? Hardness is dependent on ductility, elastic stiffness, plasticity, strain, strength, toughness, viscoelasticity, and viscosity. Common examples of hard […]
Where is the real image formed?
Where is the real image formed? A real image occurs where rays converge, whereas a virtual image occurs where rays only appear to diverge. Real images can be produced by concave mirrors and converging lenses, only if the object is placed further away from the mirror/lens than the focal point, and this real image is […]