Answer:
a)250.4 °C
Explanation:
Temperature at which pressure of water become equal to the surrounding pressure is called boiling temperature .
The boiling temperature of water at 4 MPa is 250.4 °C.As we know that when pressure of water increases then the boiling point of water also increases.The boiling point of water at 1 ar is 100 °C.So the boiling point of substance is not constant it varies with environment .
Answer:
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Answer:
The speed is minimum at t = 4 seconds.
The position function of a particle is given by
The velocity is given as,
Speed is computed as,
Differentiate above expression and equate to zero.
Thus, speed is minimum at t = 4 seconds.
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brainly.com/question/954654
Explanation:
Answer:
C.The chaotic arrangement of atoms or high hardness
Explanation:
We know that atomic arrangement in Solids are of two types
1)Crystalline
2)Amorphous
Crystalline arrangement have periodic arrangement where as Amorphous arrangement have random arrangement.
Generally all metal have Crystalline arrangement and material like wood ,glass have random arrangement ,that is why wood and glass is called Amorphous.We know that wood act as a insulator for conductivity and glass is a brittle and hard material.
So from above we can say that Amorphous material have chaotic arrangement of atoms or have high harness,so our option c is right.