An airplane is traveling 735 km/h in a direction 41.5°

Chapter 28, Problem 9P

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QUESTION:

(II) An airplane is traveling  in a direction \(41.5^{\circ}\) west of north (Fig.  ).

(  ) Find the components of the velocity vector in the northerly and westerly directions.


(b) How far north and how far west has the plane traveled after

Equation Transcription:

Text Transcription:

41.5^{\circ}

Questions & Answers

QUESTION:

(II) An airplane is traveling  in a direction \(41.5^{\circ}\) west of north (Fig.  ).

(  ) Find the components of the velocity vector in the northerly and westerly directions.


(b) How far north and how far west has the plane traveled after

Equation Transcription:

Text Transcription:

41.5^{\circ}

ANSWER:

Solution 9P Introduction Given in the question that 25% of chemical energy is converted to mechanical energy. Therefore, remaining (100-25)% = 75% will be mechanical energy as Total energy = Chemical energy+mechanical energy. To calculate increase in body temperature, we need to use the equation Q = ms, where Q is amount of heat involved, m is the mass of J cyclist, s is specific heat of human body = 3400 kg. C, is increase in body temperature. Step 1: Total metabolic power is = 480 W Now, 75% of total metabolic power is converted to thermal energy.

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