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Rus_ich [418]
3 years ago
11

During light activity, a 70-kg person may generate 200 kcal

Physics
1 answer:
Lerok [7]3 years ago
3 0

Answer:

2.75387\ ^{\circ}

Explanation:

m = Mass of person = 70 kg

c = Specific heat of human body = 0.83\ J/kg^{\circ}C

\Delta T = Change in temperature

Time taken is 1 hour

Heat is given by

Q=mc\Delta T\\\Rightarrow \Delta T=\dfrac{Q}{mc}\\\Rightarrow \Delta T=\dfrac{0.8\times 200\times 1}{70\times 0.83}\\\Rightarrow \Delta T=2.75387\ ^{\circ}C

The rise in temperature is 2.75387\ ^{\circ}C

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It mimics the real world accurately

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Experiments conducted in the field clearly presents the real world at it is to the scientist. Hardly can any part be controlled precisely and this gives a near to perfect scenario.

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Experiment brainly.com/question/5096428

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Tristan is an engineer working on a design for a new roller coaster. He wants the car to shoot out of the station very fast but
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Explanation:

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3 years ago
Which component of magma includes mobile ions of silicon?
Lemur [1.5K]

Answer:

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Explanation:

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Under normal conditions, mantle rock like peridotite shouldn't melt in the Earth's upper mantle. However, by adding water you can lower the melting point of the rock. Alternatively, by decompressing the rock, you can bring it to a pressure where the melting point is lower. In both cases, basalt magma will form and considering it is hotter and less dense than the surrounding rock, it will percolate towards the surface and some of that erupts.

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3 years ago
Calculate the acceleration of a car if it's velocity increases from 15 m/s to 75m/s in 5 seconds. ​
Andreas93 [3]
  • initial velocity=u=15m/s
  • Final velocity=v=75m/s
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\\ \sf\longmapsto Acceleration=\dfrac{v-u}{t}

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\\ \sf\longmapsto Acceleration=12m/s^2

7 0
3 years ago
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