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Vanyuwa [196]
2 years ago
8

According to the picture, which is the least dense?

Physics
2 answers:
STatiana [176]2 years ago
7 0

Answer:

a

Explanation:

alexdok [17]2 years ago
4 0

Answer:

a the chess peice

Explanation:

my head

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Solution:

As per the question:

Cross-sectional Area of the Copper Rod, A = 11.6\ cm^{2} = 11.6\times 10^{- 4}\ m^{2}

Length of the rod, L = 19.6 cm = 0.196 m

Thermal conductivity of Copper, K = 390\ W/m.^{\circ}C

Conduction of heat from the rod per second is given by:

q = \frac{KA\Delta T}{L}

where

\Delta T = 100^{\circ} - 0^{\circ} = 100^{\circ}C = temperature difference between the two ends of the rod.

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To calculate the mass, M of the ice melted per sec:

M = \frac{q}{L_{w}}

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