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Nataly_w [17]
3 years ago
10

A jet plane lands with a speed of 87 m/s and can accelerate at a maximum rate of −4.10 m/s2 as it comes to rest. (a) From the in

stant the plane touches the runway, what is the minimum time needed before it can come to rest?
Physics
1 answer:
garri49 [273]3 years ago
7 0

Answer:

21.22s

Explanation:

initial velocity u=87m/s

acceleration a=-4.10 m/s²

velocity v=0

time t=?

From Newton's first law of motion

V=u+at

0=87-4.10t

-87=-4.1t

t= -87/-4.1

t= 21.22 s

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solong [7]

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71 rpm

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3 years ago
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irakobra [83]

Answer:

Explanation:

1 )

Here

wave length used that is λ = 580 nm

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2 )

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For angular position of θ1

δ = .126 x 10⁻² radian

I = I₀ cos².126x 10⁻²/2

= I₀ X .998

For angular position of θ2

I = I₀ cos².126x2x 10⁻²/2

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Vanyuwa [196]
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topjm [15]

Answer:

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The Kidneys remove the toxic stuff that you dont need anymore. Therefore the kidneys rather than the everything else removes blood and toxic waste.

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