What is a pound of thrust? Thrust is measured in “pounds of thrust” in the U.S. and in newtons in the metric system. 4.45 newtons of thrust equals 1 pound of thrust. A pound of thrust is how much thrust it would take to keep a one-pound object unmoving against the force of gravity on […]
What is the difference between a random error and a systematic error?
What is the difference between a random error and a systematic error? Random errors show up as different results for ostensibly the same repeated measurement. They can be estimated by comparing multiple measurements, and reduced by averaging multiple measurements. Systematic error is predictable and typically constant or proportional to the true value. What is an […]
What is the Maxwell model of viscoelasticity?
What is the Maxwell model of viscoelasticity? The Maxwell model predicts that stress decays exponentially with time, which is accurate for most polymers. One limitation of this model is that it does not predict creep accurately. The Maxwell model for creep or constant-stress conditions postulates that strain will increase linearly with time. Why are polymers […]
Is rate of decay constant?
Is rate of decay constant? The rate of decay remains constant throughout the decay process. There are three ways to show the exponential nature of half-life. What is a rate of decay? The rate of decay is often referred to as the activity of the isotope and is often measured in Curies (Ci), one curie […]
What was the first PC based operating system called quizlet?
What was the first PC based operating system called quizlet? Terms in this set (25) Microsoft Windows was the first operating system with a user interface based on windows and icons. Does M2M communication allows computers to monitor equipment on assembly lines? Answer Expert Verified. Type of communication where a company’s computers can monitor assembly […]
What is a boundary layer in fluid mechanics?
Is Bronze an alloy?
Is Bronze an alloy? Bronze, alloy traditionally composed of copper and tin. Bronze is of exceptional historical interest and still finds wide applications. Some modern bronzes contain no tin at all, substituting other metals such as aluminum, manganese, and even zinc. Why is bronze so expensive? While all three contain copper, the percentage is far […]
What is the first step in drawing a floor plan?
What is the first step in drawing a floor plan? There are a few basic steps to creating a floor plan: Choose an area. Determine the area to be drawn. Take measurements. If the building exists, measure the walls, doors, and pertinent furniture so that the floor plan will be accurate. Draw walls. Add architectural […]
What is the mechanism of grain refinement strengthening?
What is the mechanism of grain refinement strengthening? It is based on the observation that grain boundaries are insurmountable borders for dislocations and that the number of dislocations within a grain have an effect on how stress builds up in the adjacent grain, which will eventually activate dislocation sources and thus enabling deformation in the […]
How is the Apriori property used in the algorithm?
How is the Apriori property used in the algorithm? Apriori is an algorithm for frequent item set mining and association rule learning over relational databases. The frequent item sets determined by Apriori can be used to determine association rules which highlight general trends in the database: this has applications in domains such as market basket […]