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3 years ago

class 7 Physics answera plot measuring 2 km in length and 1 by 2 km in breadth has area of how many hectare

Physics

1 answer:

motikmotik3 years ago

7 0

Answer:

Area of plot in hectare = 100 hectare

Explanation:

Given;

Length of plot = 2 km

Width of plot = 1/2 km = 0.5 km

Find:

Area of plot in hectare

Computation:

Area of plot = Length x width

Area of plot = 2 x 0.5

Area of plot = 1 square kilometer

1 square kilometer = 100 hectare

Area of plot in hectare = 1 x 100

Area of plot in hectare = 100 hectare

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Answer:

Explanation:

The rate of conductive heat transfer in watts is:

q = (k/s) A ΔT

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Given that A = 0.42 m², we can find q:

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If we change k to 1.8 W/m/K:

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q = (52.4 / 0.024) (0.42) (210)

q = 192,570 J/s

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No links or viruses!

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Which of the following are characteristics of noble gases?

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$\sf\red{B. \:They're\: inert.}$ ✅

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