What is the relationship between frequency and wavelength in sound waves? Frequency and wavelength are inversely proportional to each other. The wave with the greatest frequency has the shortest wavelength. Twice the frequency means one-half the wavelength. For this reason, the wavelength ratio is the inverse of the frequency ratio. What is the formula to […]
What is the biggest challenge facing farmers over the next decade?
What is the biggest challenge facing farmers over the next decade? The following five challenges to the future of agriculture and food security exist on almost every continent in one form or another: constraints on resources from fossil fuel to water to phosphorus; land management problems resulting from tillage to monoculture to improper grazing practices; […]
Why does metal heat up fast?
Why does metal heat up fast? Why do metals conduct heat so well? The electrons in metal are delocalised electrons and are free moving electrons so when they gain energy (heat) they vibrate more quickly and can move around, this means that they can pass on the energy more quickly. Does glass or metal heat […]
Do Town criers get paid?
Do Town criers get paid? These days, town criers are typically paid by appearance, although free ‘crys’ for charitable events are very often a large part of their duties. Are town criers paid? Bellmen would be paid for each proclamation they made: in the 18th century the rate was between 2d and 4d per cry. […]
What are the major issues facing American federalism today?
What are the major issues facing American federalism today? What issues most influence American Federalism today? Today political debates over how the United States will best address key policy areas – poverty, homeland security, environmental protection, immigration, and health care – drive changes in our federal system. How has the power of federal government developed […]
What is the Lewis symbol for chlorine?
What is the Lewis symbol for chlorine? 5.3: Lewis Diagrams Element Atomic Weight Chlorine Compounds Phosphorus 30.97 PCl3, PCl5, P2Cl4 Sulfur 32.06 S2Cl2, SCl2, SCl4 Chlorine 35.45 Cl2 Potassium 39.10 KCl What is the Lewis dot structure for magnesium? Magnesium is element #12. To draw the Lewis electron dot diagram we picture in our minds […]
How do ocean surface currents affect climate?
How do ocean surface currents affect climate? Ocean currents act much like a conveyor belt, transporting warm water and precipitation from the equator toward the poles and cold water from the poles back to the tropics. Thus, ocean currents regulate global climate, helping to counteract the uneven distribution of solar radiation reaching Earth’s surface. How […]
What are the similarities and differences between electrolytic and voltaic cells?
What are the similarities and differences between electrolytic and voltaic cells? In both voltaic and electrolytic cells, oxidation occurs at the anode, while reduction occurs at the cathode. Thus, both these cells exhibit redox reactions. In both these cells, electrons flow from the anode to the cathode through the externally connected conductor. What is the […]
Is it healthy to live in the city?
Is it healthy to live in the city? The detrimental effects of urban living on physical health have long been recognised, including higher rates of cardiovascular and respiratory disease. More recent, however, is the revelation that urban living can also have adverse effects on mental health. What is the most densely populated place on Earth? […]