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Is relative roughness dimensionless?
Is relative roughness dimensionless? Since the relative roughness is a dimensionless number, both the absolute roughness and diameter must carry the same units. What is equivalent roughness? The equivalent roughness of a mine roadway can be defined. as the roughness of a circular pipe, of which diameter is. equal to the hydraulic diameter of the […]
Which of the following is best example of greenhouse effect?
Which of the following is best example of greenhouse effect? Explanation: the best example of greenhouse effect: Cloud Effects at Night. Weather Requires the Greenhouse Effect. What is an example of the greenhouse effect? The greenhouse effect is a natural process that warms the Earth’s surface. Greenhouse gases include water vapour, carbon dioxide, methane, nitrous […]
What does a refrigeration cycle do?
What is the massive process that projects laterally from the proximal femur?
What is the massive process that projects laterally from the proximal femur? Greater trochanter Which bony process acts like a doorstep to prevent excessive movement of the elbow? Which bony process acts like a doorstop to prevent excessive movement of the elbow? -olecranal bone prevents elbow from bending too much on the ulna: coronoid process […]
What is the dry adiabatic rate of cooling for rising air?
What is the dry adiabatic rate of cooling for rising air? Dry adiabatic lapse rate: Assumes a dry parcel of air. Air cools 3°C/100 m rise in altitude (5.4°F/1000 ft). Which of the following is the dry adiabatic lapse rate? When the air contains little water, this lapse rate is known as the dry adiabatic […]
How does a CNC machine work?
How does a CNC machine work? The CNC controller works together with a series of motors and drive components to move and control the machine axes, executing the programmed motions. On the industrial machines there is usually a sophisticated feedback system that constantly monitors and adjusts the cutter’s speed and position. What is CNC machine […]
What is the gain of non-inverting amplifier?
What is the gain of non-inverting amplifier? A non-inverting amplifier uses a voltage-divider-bias negative feedback connection. The voltage gain is always greater than one. The voltage gain is positive, indicating that for AC input, the output is in-phase with the input signal and for dc input the output polarity is same as the input polarity. […]
What is the fracture toughness of a material?
What is the fracture toughness of a material? 17.7. “Fracture toughness” describes the resistance of brittle materials to the propagation of flaws under an applied stress, and it assumes that the longer the flaw, the lower is the stress needed to cause fracture. The ability of a flaw to cause fracture depends on the fracture […]
What is a quasi-equilibrium process?
What is a quasi-equilibrium process? In thermodynamics, a quasi-static process (also known as quasi-equilibrium, from the Latin quasi, meaning ‘as if’), is a thermodynamic process that happens slowly enough for the system to remain in internal equilibrium. Any reversible process is a quasi-static one. Why quasi static process is important? Equilibrium in a system in […]