Mia wanted to know how Earth’s movements created new landforms. She decided to read about folded mountains and their characteris
2 answers:
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Answer:
Work done, W = 6 J
Explanation:
It is given that,
Force of gravity acting on the book, weight of the book is 15 N
We need to find the work done in lifting the book straight up for a distance of 0.4 meters.
The weight of the book is acting in downward direction and the book is lifted straight up, it means angle between them is 180 degrees. Work done is given by :
So, the magnitude of work done in lifting the book is 6 joules.
Answer:
The heat loss per unit length is
Explanation:
From the question we are told that
The outer diameter of the pipe is
The thickness is
The temperature of water is
The outside air temperature is
The water side heat transfer coefficient is
The heat transfer coefficient is
The heat lost per unit length is mathematically represented as
Substituting values