How many amps is 220 volts? There are no amps in 220 volts. Amperage is the current drawn by the appliance connected to 220 volts AC. A small phone charger may draw 150milli Amps or a heater may draw 10 Amps, while a TV may draw 1 Amp. How many amps does a 12 volt […]
Can tension ever zero?
Can tension ever zero? Zero tension is slack. A string or rope is often idealized as one dimension, having length but being massless with zero cross section. Does negative stress mean compression? Compressive stress has stress units (force per unit area), usually with negative values to indicate the compaction. Compressive stress is defined in the […]
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 is the relationship between frequency and wavelength in sound waves?
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; […]
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 […]
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 […]
Is a screwball a real pitch?
Why do O and B type stars have weaker hydrogen absorption lines?
Why do O and B type stars have weaker hydrogen absorption lines? So, most of the electrons in hydrogen are stuck on the ground orbit because they cannot absorb the lower energy light. This results in weaker absorption lines, because very few hydrogen atoms are participating. You cannot measure the temperature of the star based […]