valeriechung valeriechung

15-03-2020
Physics

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Guysss, I need help on q3&4. Thank you in advance

Guysss I need help on q3amp4 Thank you in advance class=

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MathPhys MathPhys

15-03-2020

Explanation:

(c) Power = energy / time

Energy = power × time

E = 1000 W × (15 min − 2 min) × (60 s/min)

E = 780,000 J

(d) Heat = mass × specific latent heat

q = mL

780,000 J = (300 g) L

L = 2600 J/g

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