Physics

Convert 40°C to the:
(a) Fahrenheit scale
(b) Kelvin scale

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(a) °F = $\dfrac{\text{9}}{\text{5}}$ C + 32

= $\dfrac{\text{9}}{\text{5}}$ x 40 + 32

= 9 x 8 + 32

= 72 + 32

= 104

So 40°C = 104°F.

(b) t°C = (273 + t) K

= 273 + 40

= 313 K

So 40°C = 313 K.

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