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RUDIKE [14]
3 years ago
12

When an electric current flows through a long conductor, each free electron moves

Physics
1 answer:
ki77a [65]3 years ago
7 0
A. through a relatively short distance.

The speed is actually called the drift speed of the electron.
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The answer is D I think
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Local environmental change have no effect on the global climate true or false
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false

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The fine horizontal scratches etched onto a bullet after it has been fired are called?
GalinKa [24]

The fine horizontal scratches etched onto a bullet after it has been fired are called Striations.

<h3>What is Striations?</h3>
  • Striations are the minute differences in the curve of the bullet's surface. The bullet and the gun barrel are the harder and softer materials, respectively, in firearms evidence.
  • The striations left on the fired bullet are used as a comparison by firearm examiners.
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4 0
2 years ago
How strongly the planet you're on pulls on you is your
IrinaK [193]
The size of the forces between you and the planet you're on is
your weight on that planet.

Don't forget that you pull the planet with a force equal to the force
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6 0
3 years ago
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An 85-kg man plans to tow a 109 000-kg airplane along a runway by pulling horizontally on a cable attached to it. Suppose that h
Lelu [443]

Answer:

The greatest acceleration the man can give the airplane is 0.0059 m/s².

Explanation:

Given that,

Mass of man = 85 kg

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Distance = 9.08

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We need to calculate the greatest friction force

Using formula of friction

F=\mu mg

Where, m = mass of man

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Put the value into the formula

F = 0.77\times85\times9.8

F= 641.41\ N

We need to calculate the acceleration

Using formula of newton's second law

F = ma

a=\dfrac{F}{m}

Put the value into the formula

a=\dfrac{ 641.41}{109000}

a=0.0059\ m/s^2

Hence, The greatest acceleration the man can give the airplane is 0.0059 m/s².

3 0
3 years ago
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