3 years ago

Radar tells an air traffic controller that a jet is slowing as it nears the airport. Which might represent the jet’s speed

Physics

2 answers:

Flauer [41]3 years ago

6 0

Answer:

80 miles

Explanation:

FromTheMoon [43]3 years ago

4 0

Https://www.google.com/search?q=Radar+tells+an+air+traffic+controller+that+a+jet+is+slowing+as+it+ne...

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The Hall effect can be used to determine the density of mobile electrons in a conductor. A thin strip of the material being inve

solmaris [256]

Answer:

the density of mobile electrons in the material is 3.4716 × 10²⁵ m⁻³

Explanation:

Given the data in the question;

we make use of the following expression;

hall Voltage VH = IB / ned

where I = 2.25 A

B = 0.685 T

d = 0.107 mm = 0.107 × 10⁻³ m

e = 1.602×10⁻¹⁹ C

VH = 2.59 mV = 2.59 × 10⁻³ volt

n is the electron density

so from the form; VH = IB / ned

VHned = IB

n = IB / VHed

so we substitute

n = (2.25 × 0.685) / ( 2.59 × 10⁻³ × 1.602×10⁻¹⁹ × 0.107 × 10⁻³ )

n = 1.54125 / 4.4396226 × 10⁻²⁶

n = 3.4716 × 10²⁵ m⁻³

Therefore, the density of mobile electrons in the material is 3.4716 × 10²⁵ m⁻³

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3 years ago

Which of the following pieces of laboratory equipment is not directly used to make measurements

RoseWind [281]

I believe the answer is a test tube.

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3 years ago

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What are the different ways that the simulation shows you that the equation is balanced, visually? For each balanced reaction, i

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3 years ago

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2 years ago

A mass of 100 kg is pulled by a 392 N force in the +X direction along a rough surface (uk=0.4) with uniform velocity v=20 m/s. W

alexdok [17]

Answer:

The total work done will be zero.

Explanation:

Given that,

Mass = 100 kg

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Velocity = 20 m/s

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$F'=0$

The net force is zero.

Hence, The total work done will be zero by all forces on the object.

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3 years ago