SATHEE: Work Energy And Power Question 290

Work Energy And Power Question 290

Question: The heart of man pumps 5 liters of blood through the arteries per minute at a pressure of 150 mm of mercury. If the density of mercury be $13.6 \times 10^{3} k g / m^{3}$ and $g = 10 m / s^{2}$ then the power of heart in watt is:

Options:

A) 2.35

B) 3.0

C) 1.50

D) 1.70

Show Answer

Answer:

Correct Answer: D

Solution:

[d] Power $\vec{F} . \vec{V} = P A \vec{V} = ρ g h A V$

$[∵ \frac{F}{A} a n d P = ρ g h]$

$= 13.6 \times 10^{3} \times 10 \times 150 \times 1 0^{- 3} \times 0.5 \times 1 0^{- 3} / 60$

$= \frac{102}{60} = 1.70 w a t t$

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Work Energy And Power Question 290

Question: The heart of man pumps 5 liters of blood through the arteries per minute at a pressure of 150 mm of mercury. If the density of mercury be $13.6 \times 10^{3} k g / m^{3}$ and $g = 10 m / s^{2}$ then the power of heart in watt is:

Options:

Answer:

Solution:

इंजीनियरिंग की तैयारी

चिकित्सा तैयारी

एनसीईआरटी पुस्तकें और समाधान

महत्वपूर्ण संसाधन

अन्य संसाधन

पाठ्यक्रम

परीक्षा मंच

नमूना मॉक टेस्ट

सदस्यता

एनसीईआरटी व्यायाम वीडियो समाधान

Work Energy And Power Question 290

Question: The heart of man pumps 5 liters of blood through the arteries per minute at a pressure of 150 mm of mercury. If the density of mercury be 13.6×103kg/m3 and g=10m/s2 then the power of heart in watt is:

Options:

Answer:

Solution:

इंजीनियरिंग की तैयारी

चिकित्सा तैयारी

एनसीईआरटी पुस्तकें और समाधान

महत्वपूर्ण संसाधन

अन्य संसाधन

पाठ्यक्रम

परीक्षा मंच

नमूना मॉक टेस्ट

सदस्यता

एनसीईआरटी व्यायाम वीडियो समाधान

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Question: The heart of man pumps 5 liters of blood through the arteries per minute at a pressure of 150 mm of mercury. If the density of mercury be $13.6 \times 10^{3} k g / m^{3}$ and $g = 10 m / s^{2}$ then the power of heart in watt is: