Answer:
0.733J/g°C
Explanation:
Using the formula
Q=mcΔθ
Q=38.5J, c=? , m=17.5g , Δθ=3°C
c= Q/(mΔθ)

c=0.733J/g°C
They lower the average density of their body; because of the air it feels like a slight decrease in the weight.
Answer:
The magnetic stripes might reverse direction. The deep-ocean trench might become deeper.
Explanation:
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