Which factor is affecting the heat transfer coefficient in heat convection? Heat transfer coefficient depends on both the thermal properties of a medium, the hydrodynamic characteristics of its flow, and the hydrodynamic and thermal boundary conditions. What does the convective heat transfer coefficient depend on? Accordingly, the convection heat transfer coefficient depends on (1) the […]
Do alcohol and mercury thermometers read the same?
Do alcohol and mercury thermometers read the same? There is a technical reason for using mercury in clinical thermometers. Mercury has a greater coefficient of thermal expansion than alcohol. This means a column of mercury will expand and rise more than a column of alcohol for the same temperature change. As a result, you can […]
What are the types of digital divide?
What are the types of digital divide? However, two other types of divide will have much greater impact in the years to come. Stage 1: Economic Divide. In its simplest form, the digital divide is manifested in the fact that some people can’t afford to buy a computer. Stage 2: Usability Divide. Stage 3: Empowerment […]
What statement summarizes the difference between a law and a theory?
What statement summarizes the difference between a law and a theory? Which statement summarizes the difference between a law and a theory? A law describes natural phenomena, but a theory explains why those phenomena occur. The data from one particular experiment do not agree with a current theory. What is the best reason for the […]
How deep can you dig into the earth?
How deep can you dig into the earth? 40,230ft What happens if you dig too deep in the earth? To make things more difficult, as they drill deeper into the Earth, they’ll encounter extreme temperatures, possibly in excess of 1,000 degrees Fahrenheit (538 degrees Celsius), and fantastic amounts of pressure — as much as 4 […]
Which is the SI unit?
Which is the SI unit? There are seven basic units in the SI system: the meter (m), the kilogram (kg), the second (s), the kelvin (K), the ampere (A), the mole (mol), and the candela (cd). What is dimension formula? Dimensional formula (equation) (Definition) : An equation, which gives the relation between fundamental units and […]
What is the working distance for a 4x objective lens?
What is the working distance for a 4x objective lens? Table 1 – Objective Specifications by Magnification Achromat Correction Magnification Numerical Aperture Working Distance (mm) 4x 0.10 30.00 10x 0.25 6.10 20x 0.40 2.10 What is the working distance of a lens? The working distance defines the free space between the object and the leading […]
Are Dyson hair dryers worth the money?
Are Dyson hair dryers worth the money? The bottom line: The Dyson Supersonic blew away (heh) the competition when it came to drying speed, strongest airflow, and consumer satisfaction in our extensive testing. If you’re in the market for a new hair dryer — and have some savings built up — it’s proven to be […]
What is the Centre of pressure on an aerofoil?
What is better active or passive noise cancellation?
What is better active or passive noise cancellation? While both passive noise isolation and active noise cancellation allow you to listen to music at lower volumes than earphones without ANC, passive noise isolation is better for your hearing overall. This is because active noise cancellation neutralizes outside noise by creating an equal and opposite noise. […]