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vivado [14]
3 years ago
11

How is young's modules of a material defined​

Physics
1 answer:
Vesnalui [34]3 years ago
5 0
Young's modulus is a measurement of the ability of a material to withstand changes in length when under lengthwise tension or compression. Sometimes referred to as the modulus of elasticity, Young's modulus is equal to the longitudinal stress divided by the strain.
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a measure has true value of 2.00and the measurement value was found to e 1.95.calculate the precision of the measuring instrumen
DiKsa [7]

The precision of the measuring instruments will be 2.5%.

<h3>What is precision?</h3>

It should be noted that precision simply means how close a test result will be when it's repeated.

In this case, the precision of the measuring instruments will be:

= (2 - 1.95)/2.

= 0.05/2

= 2.5%

Therefore, the the precision of the measuring instruments will be 2.5%.

Learn more about precision on:

brainly.com/question/5792909

8 0
2 years ago
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What is most important when selecting the right pfd for a passenger on board your boat?
Karolina [17]
The most essential while choosing the privilege PFD for a traveler is the information required for choosing right PFD for the traveler's body weight and trunk size.Note that the offspring of what age under 8 years old are required to wear legitimately secured PFD while on vessel unless in securely closed cabin. 
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3 years ago
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In one cycle, a heat engine takes in 1000 J of heat from a high-temperature reservoir, releases 600 J of heat to a lower-tempera
Talja [164]

Answer:

η = 40 %  

Explanation:

Given that

Qa ,Heat addition= 1000  J

Qr,Heat rejection= 600 J

Work done ,W= 400 J

We know that ,efficiency of a engine given as

\eta=\dfrac{W(net)}{Q(heat\ addition)}

Now by putting the values in the above equation ,then we get

\eta=\dfrac{400}{1000}

η = 0.4

The efficiency in percentage is given as

η = 0.4  x 100 %

η = 40 %

Therefore the answer will be 40%.

4 0
4 years ago
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mrs_skeptik [129]
Stars are located at a distance which are measured in terms of light years. Light year is an Astronomical unit used to measure distance between distant Celestial bodies. 
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But no star is located at a distance of 1 light year. Some stars are located at millions of light years and light travels ~ 3 x 10</span>⁸ m/s. Thus light takes time to reach our atmosphere. 
4 0
4 years ago
How many minerals are found in earths crust ?
Damm [24]
You can find your answer here www.rsc.org/education/teachers/resources/jesei/minerals/students.htm
5 0
4 years ago
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