Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoThermal ExpansionMedium2 minQB

PhysicsMediuminteger

A 50 kg climber eats 200 kcal of food. Climbing efficiency $25%; 1 kcal = 4000 J, g = 10 m / s^{2}$ . Find ideal height in m.

Answer:

400

Solution:

Useful energy $= 0.25 \times 200 \times 4000 = 200000 J$ . Height $= 200000/ (50 \times 10) = 400 m$ . \end{document}

Subject:PhysicsTopic:Heat & ThermoSubtopic:Thermal Expansion

⏱ 2mℹ️ Source: QB

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