Question: While working out, a person does 4 0 0 kJ of work and loses 1 5 0 kJ of heat through various ways ( sweating

While working out, a person does

400

kJ of work and loses

150

kJ of heat through various ways

(

sweating

,

panting, radiation

) .

What is the change in internal energy for this person? Note, a positive answer indicates their body gained energy, a negative answer indicated their body lost energy.

While working out, a person does 4 0 0 kJ of work

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