Which is an empirical formula? An Empirical formula is the chemical formula of a compound that gives the proportions (ratios) of the elements present in the compound but not the actual numbers or arrangement of atoms. This would be the lowest whole number ratio of the elements in the compound. What is the empirical formula […]
How do you prove two vectors are perpendicular?
How many watts is a 1HP motor?
What is the role of the mantle in plate tectonics?
What is the role of the mantle in plate tectonics? The Earth’s mantle plays an important role in the evolution of the crust and provides the thermal and mechanical driving forces for plate tectonics. Because subducted plates are relatively cool, they decrease the temperature of nearby mantle, leaving relatively warm mantle in the regions between […]
What are the 3 types of thermal energy transfer?
What are the 3 types of thermal energy transfer? Heat can be transferred in three ways: by conduction, by convection, and by radiation. Conduction is the transfer of energy from one molecule to another by direct contact. Convection is the movement of heat by a fluid such as water or air. Radiation is the transfer […]
What has the least density?
What has the least density? The first chemical element with the lowest density is Hydrogen and the highest density is Osmium. What is the lightest strongest metal? Magnesium Which metal is less dense water? lithium, sodium and potassium are less dense than water so they float on the surface of the water. the metals move […]
What is the difference between an active and a passive wheel speed sensor?
What is the difference between an active and a passive wheel speed sensor? Passive sensors are larger and less accurate than active sensors and only start to operate when the wheel reaches a certain speed, therefore they have limited operation at lower speed. Active sensors require an external power source to operate and work in […]
What is a portfolio sample?
What is a portfolio sample? A portfolio is a collection of work samples that you can bring to an interview, send to a prospective employer, or even post online. How do you write a portfolio description? Introduce yourself. Use the very first line of your “About Me” page’s portfolio introduction to simply tell visitors who […]
What are the two fixed points in Celsius scale?
What are the two fixed points in Celsius scale? In the case of the Celsius scale, the lower point is the melting point of pure ice at normal atmospheric pressure and the upper fixed point is the boiling point of pure water at normal atmospheric pressure (1atm). Which temperatures are the upper and lower fixed […]
What are the characteristics of limestone?
What are the characteristics of limestone? Limestone, sedimentary rock composed mainly of calcium carbonate (CaCO3), usually in the form of calcite or aragonite. It may contain considerable amounts of magnesium carbonate (dolomite) as well; minor constituents also commonly present include clay, iron carbonate, feldspar, pyrite, and quartz. What are 3 characteristics of limestone? Pure limestones […]