3 years ago

What is a source of AC current

Physics

1 answer:

12345 [234]3 years ago

4 0

An alternating emf generated from a power plant
hope this helps loves

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3 years ago

4. Define resistance and describe what would happen to a light bulb if the voltage increased but the resistance stayed the same.

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2 years ago

Nature of components of mixture should be known to separate the mixture why?

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Answer:

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3 years ago

An airplane has wings, each with area A, designed so that air flows over the top of the wing at 265 m/s and underneath the wing

exis [7]

Answer

given,

Pressure on the top wing = 265 m/s

speed of underneath wings = 234 m/s

mass of the airplane = 7.2 × 10³ kg

density of air = 1.29 kg/m³

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$P_1 + \dfrac{1}{2}\rho v_1^2 = P_2 + \dfrac{1}{2}\rho v_2^2$

$\Delta P =\dfrac{1}{2}\rho (v_2^2-v_1^2)$

$\Delta P =\dfrac{1}{2}\times 1.29\times (265^2-234^2)$

$\Delta P =9977.5 Pa$

Applying newtons second law

2 Δ P x A - mg = 0

$A =\dfrac{mg}{2\Delta P}$

$A =\dfrac{7.2\times 10^3 \times 9.8}{2\times 9977.5}$

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3 years ago

What is the importance of leaves

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Answer:

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