How do you calculate average speed in miles per minute? The most common formula for average speed is distance traveled divided by time taken. The other formula, if you have the initial and final speed, add the two together, and divide by 2. How do you calculate speed with minutes? Speed Calculator Or, if you […]
Why is 0.2% proof stress used?
Why is 0.2% proof stress used? In other words, proof stress is the point at which a particular degree of permanent deformation occurs in a test sample. Proof stress is also called offset yield stress. Typically, the stress needed to produce 0.2 percent of plastic deformation is considered proof stress. How the 0.2% offset yield […]
What are three necessary parts of a radio communication system?
What are three necessary parts of a radio communication system? There are three main components to most distributed antenna systems. These components include the Donor Antenna System, the Bi-Directional Amplifier, and the Distributed Antenna System. All three components work together to produce clear in-building communication signals. What is a radio system? A radio “system” is […]
What is the advantage of composite construction?
What is the advantage of composite construction? Advantages of Composite Construction The concrete acts together with the steel to create a stiffer, lighter, less expensive structure. Speed and simplicity of construction- faster to erect, nearly 25% faster then traditional construction. Lighter construction than a traditional concrete building. What has more pop aluminum or composite? In […]
How many workplace fires occur each year?
How many workplace fires occur each year? During the five-year period of 2007-2011, NFPA estimates that U.S. fire departments responded to an average of 3,340 fires in office properties per year. These fires caused an annual average of four civilian deaths, 44 civilian fire injuries, and $112 million in direct property damage. How often do […]
What are 5 chemical properties?
What are 5 chemical properties? Examples of chemical properties include flammability, toxicity, acidity, reactivity (many types), and heat of combustion. What are the chemical and physical properties of metal? Physical properties Metals Non-metals Good conductors of electricity Poor conductors of electricity Good conductors of heat Poor conductors of heat High density Low density Malleable and […]
What are the 2 prime factors of 12?
What variables affect the efficiency of a heat engine?
What variables affect the efficiency of a heat engine? The thermal efficiency of a heat engine is expressed as a product of the Carnot efficiency, the external irreversibility factor and the internal irreversibility factor, by which the three factors that affect the thermal efficiency can be clearly distinguished, and the influences of the external and […]
What is ferrous alloy?
What is ferrous alloy? Ferrous alloys or metals are metals that consist mostly of iron (Fe). Steel is an iron-based alloy containing typically less than 1% carbon, where iron frequently contains 2% or more carbon. Is brass an alloy? Brass, alloy of copper and zinc, of historical and enduring importance because of its hardness and […]