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3 years ago

The supersonic airliner Concorde is 62.1 m long when sittingon

Physics

1 answer:

larisa86 [58]3 years ago

6 0

Answer:

$182.74020\ ^{\circ}C$

Explanation:

L = Initial length = 62.1 m

$\alpha$ = Coefficient of linear expansion of Aluminium = $24\times 10^{-6}/^{\circ}$

$T_i$ = Initial temperature = 15°C

$T_f$ = Final temperature

$\Delta L$ = Change in length = 25 cm

Change in length due to heat is given by

$\Delta L=L\alpha \Delta T\\\Rightarrow\Delta L=L\alpha (T_f-T_i)\\\Rightarrow T_f=\dfrac{\Delta L}{L\alpha}+T_i\\\Rightarrow T_f=\dfrac{0.25}{62.1\times 24\times 10^{-6}}+15\\\Rightarrow T_f=182.74020\ ^{\circ}C$

The temperature of the Concorde's skin in flight is $182.74020\ ^{\circ}C$

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2 years ago

Which of the following statements about the problem of object recognition is false?

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Answer:

The answer is: letter c, in object recognition, the goal is recognizing the proximal stimulus.

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Letter c is a "false" statement about object recognition because the goal is recognizing the distal stimulus and "not the proximal stimulus."

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3 years ago

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3 years ago

A boat with a horizontal tow rope pulls a waterskier. She skis off to the side, the rope makes an angle of 15° with the forward

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Answer:

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