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How do you calculate tensile strength?
Tensile strength isn't really measured; it's calculated. It is explained as the point at which a sample of material fails when subjected to tensile stress. The unit of measure of tensile strength (and stress) is the Newton per square meter (N/m2), also called as the Pascal (Pa). Tensile strengths of various building materials, like steel, are measure in millions of Pa.
A scooterist is racing at a speed of 72 km per hour. If the radius of the wheel is 20 cm, find the angular speed of the wheels. Ans) 72kmph=20m/s 20cm=0.2m; v=rw w=v/r w=20/0
Describe the resolution of the scanning electron microscope. Resolution of the SEM (scanning electron microscope): The spatial resolution of the SEM depends onto the size of
Organic & polymer solar cells are made from thin films (typically 100nm) of organic semiconductor such as polymer and small molecule compounds like poly phenylene vinylene, copper
Define term coherence as the characteristics of laser. Coherence: The light from a laser is called be highly coherent that implies the waves of laser light are in similar
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Illustrate the principle of potentiometer. Define a mathematical experiment for the comparison of emf's of two cells. Define the principle and construction of potentiometer and
When a person stands on a scale in an elevator at rest, the scale reads 800 newtons. When the elevator is allowed to fall freely with acceleration of gravity, the scale reads o
how does a magnifying glass work to produce a large or smaller image?
Introduction : A country gets specialisation in a specific commodity due to diversification of economic resources. This stimulates a country to go for international trade. Inte
Dalila decides to determine the coefficient of maximum static friction for wood against wood by conducting an experiment. First she places a block of wood on a small plank; nex
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