Category: Physics

Who uses 60Hz? Only a handful use 60Hz. The standard in the United States is 120V and 60Hz AC electricity….Listing per country. Country Voltage Frequency Austria 230V 50Hz Azerbaijan 220V 50Hz Azores 230V 50Hz Bahamas 120V 60Hz Why does Japan use 100v? The reason Japan became 100 volts was at the time Japan imported generators […]

Why zinc is not a transition metal? A transition metal is one that forms one or more stable ions which have incompletely filled d orbitals. On the basis of this definition, scandium and zinc do not count as transition metals – even though they are members of the d block. The zinc ion has full […]

How long does it take for an ice cube to melt in boiling water? 90 to 120 minutes Does boiling hot water damage car paint? Using boiling water on the car part is just as likely to cause further damage, which will only increase the cost of repair. Can I pour warm water on my […]

What were the main goals of the civil rights movement? One of the major goals of the Civil Rights Movement was to… School Segregation and Integration The massive effort to desegregate public schools across the United States was a major goal of the Civil Rights Movement. What method of protest was most effective on the […]

What is the name of Li2S? Lithium sulfide What is the charge of Li2S? 3.1Computed Properties Property Name Property Value Reference Monoisotopic Mass 46.004078 g/mol Computed by PubChem 2.1 (PubChem release 2019.06.18) Topological Polar Surface Area 1 Ų Computed by Cactvs 3.4.6.11 (PubChem release 2019.06.18) Heavy Atom Count 3 Computed by PubChem Formal Charge 0 […]

What states have best soil? What is the best state for farming? Vermont. With 245 farmers’ markets and CSAs serving a population of 626,000, Vermont has the top ranking for per capita opportunities for farmers to connect with customers. Nebraska. 3. California. New York. New Mexico. What is the best state to be a farmer? […]

Are 2 notes a chord? A chord, simply, is any combination of three or more notes. While two notes is technically harmony, they are not considered chords. Theoretically, any combination of notes is a chord, however, when used in a certain combination, some notes complement each other better than others. What are 2 notes played […]

Can zinc be used to protect iron from rusting? Galvanising is a method of rust prevention. The iron or steel object is coated in a thin layer of zinc. This stops oxygen and water reaching the metal underneath – but the zinc also acts as a sacrificial metal . Zinc is more reactive than iron, […]

What is the resolving power of an electron microscope? Since the wavelength o f electrons are 100,000 times shorter than visible light the electron microscopes have greater resolving power. They can achieve a resolution of 0.2nm and magnifications upto 2,000,000 x. Light microscopes show limited resolution than electron microscopes. Which lens has the greatest resolving […]

How can you tell if your well is low? The first sign is the water is sputtering out of the tap, indicating air pockets in the well. The second sign is the water is not clear, but muddy or filled with sediment. How long does well water take to refill? It’s difficult to give a […]