Why noble gases are chemically inert? Explaining the inertness of noble gases The atoms of noble gases already have complete outer shells, so they have no tendency to lose, gain, or share electrons. This is why the noble gases are inert and do not take part in chemical reactions. Is oxygen inert or reactive? Element […]
How many volts does a wind turbine produce?
How many volts does a wind turbine produce? 600V How much electricity does a 1mw wind turbine produce? One MW is equivalent to one million watts. The production of power over time is measured in megawatt-hours (MWh) or kilowatt-hours (kWh) of energy. A kilowatt is one thousand watts. Production of power at the rate of […]
How expensive is dark matter?
How expensive is dark matter? 1 gram of dark matter is worth $65.5 trillion. How did we find dark energy? Dark energy is detected by its effect on the rate at which the universe expands and its effect on the rate at which large-scale structures such as galaxies and clusters of galaxies form through gravitational […]
What keeps a nucleus together?
What keeps a nucleus together? The strong nuclear force. At extremely short range, it is stronger than electrostatic repulsion, and allows protons to stick together in a nucleus even though their charges repel each other. Why do unstable nuclei decay? Every atom seeks to be as stable as possible. In the case of radioactive decay, […]
What is the difference between petrified fossils and preserved remains?
What is the difference between petrified fossils and preserved remains? Petrified fossils are fossils in which minerals replace all or part of an organism. The term “petrified” means “turned into stone”. Preserved remains are preserved with little or no change. What information can scientists obtain from these fossils? By studying the fossil record we can […]
What will be the size of image if magnification is?
What will be the size of image if magnification is? Magnification 1 shows that the size of the image is equal to the size of the object. Is magnification positive or negative? Magnification: The ratio of the height of the image to the height of the object is called the magnification of the spherical mirror. […]
What is constant force example?
Which term best describes a measure of randomness?
Which term best describes a measure of randomness? Many articles and books write that entropy is the measure of randomness or disorder of the system. They say when a gas system is let expand the randomness increases etc. But they end up saying dQT is the measure of increase in randomness and is called the […]
What increases distance between fringes?
What increases distance between fringes? Increasing the wavelength of the light increases the spacing between different fringes since the spacing between different fringes is wavelength dependent. What is path difference in a wave? path difference is the difference in path traversed by the two waves , measured in terms of wavelength of the associated wave. […]
Which factor does not affect soil erosion?
Which factor does not affect soil erosion? Answer: Grazing of cattle does not effect soil eroison…. What factors are responsible for the formation of soil? Scientists attribute soil formation to the following factors: Parent material, climate, biota (organisms), topography and time. What are the factors that determine soil formation? Soil Forming Factors Parent material. Few […]