How does the law of conservation of mass apply to the real world? The law of conservation of mass states that matter cannot be created or destroyed in a chemical reaction. For example, when wood burns, the mass of the soot, ashes, and gases equals the original mass of the charcoal and the oxygen when […]
How do you find the normal depth of a trapezoidal channel?
How do you find the normal depth of a trapezoidal channel? Answer: normal depth = 1.02 m. (b) Geometry: trapezoidal cross-section with base width b, surface width �� + 2 × (2ℎ) and two sloping side lengths √ℎ2 + (2ℎ)2 = ℎ√5. How do you find the slope of a trapezoid? Trapezoidal Cross Section The […]
What are some common ways of converting fuel to useful energy check all that apply?
What are some common ways of converting fuel to useful energy check all that apply? Check all that apply. freezing it. rotating it. burning it. What energy is involved when wood burns in a campfire check all that apply? The wood burning generates electricity from heat, which is thermal energy. The answers are chemical energy […]
What percent of carbon 14 would be left after 5730 years?
What percent of carbon 14 would be left after 5730 years? 50 percent How is carbon 14 used to date artifacts? Radiocarbon dating is the most common method by far, according to experts. This method involves measuring quantities of carbon-14, a radioactive carbon isotope — or version of an atom with a different number of […]
How is Burger vector calculated?
How is Burger vector calculated? For the determination of the Burgers vector you need to insert the type of an expected dislocation. Then go around the dislocation core (line) adding the same amount of steps (vector). The missing vector component is the shift caused by the dislocation. That’s the Burgers vector. Why does a dislocation […]
When a metal is heated its density decreases?
When a metal is heated its density decreases? Answer: When a metal is heated, its density decreases. There are two sources that give rise to this decrease of ρ: (1) the thermal expansion of the solid and (2) the formation of vacancies (Section 4.2). Consider a specimen of gold at room temperature (20°C) that has […]
How do you determine your foundation size?
What do they do at NIST?
What do they do at NIST? Founded in 1901, NIST is a non-regulatory federal agency within the U.S. Department of Commerce. NIST’s mission is to promote U.S. innovation and industrial competitiveness by advancing measurement science, standards, and technology in ways that enhance economic security and improve our quality of life. Why is NIST important? A […]
What is the difference between plan and elevation?
What is the difference between plan and elevation? In basic terms, a plan is a birds-eye view of a space. When drawing a floor plan, the roof would be removed so the interior space can be seen. An elevation is a view from the side of an object, when drawing interior elevations, this would represent […]
How do you find the average of a Nusselt number?
How do you find the average of a Nusselt number? In Fluent the surface nusselt number is calculated based upon the formula ((h_eff*L_ref) / k) where h_eff is heat transfer coefficient and L_ref is reference length which you define in refernce values panel and k is thermal conductivity. What is the Nusselt number used for? […]