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3 years ago

15

If the distance between a neutral atom and a point charge is quadrupled, by what factor does the force on the atom by the point

charge change?

1 answer:

IgorLugansk [536]3 years ago

8 0

New force or Old Force

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A spotlight on the ground shines on a wall 15 meters away. A man 1.8 meters tall walks away from the spotlight toward the buildi

Alex17521 [72]

Answer:

$s=(15-x)m$

Explanation:

Let the distance from spotlight to wall be 15m, and distance from the man to the building be $x$ .

#Therefore the height of the shadow as a function of the above is $s=(15-x )m$

Hence, height of the shadow is expressed as s=(15-x)m

#See attached photo for illustration

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3 years ago

Which statement best defines work? A. Work is the time it takes to move an object once acted upon by a force. B. Work occurs whe

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a. work is the time it takes to move an object once acted upon by a force

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2 years ago

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The magnitude of the momentum of an object is 64 kilogram meters per second. If the magnitude of te velocity is doubled, the mag

dsp73

Answer:

$128 \frac{kg*m}{s}$

Explanation:

$P=m*v\\if double velocity:\\P=m*2v=2m*v\\$

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3 years ago

A competitive go-cart driver is traveling at a speed of 32m/s. He sees a caution flag go up and slows down at a rate of -1.5 m/s

djyliett [7]

Answer:

His final velocity is 15.8 m/s.

Step-by-step explanation:

Given:

Initial velocity of the driver is, $u=32$ m/s

Acceleration of the driver is, $a=-1.5$ m/s²

Time taken to reach final velocity is, $t=10.8$ s.

The final velocity is given using the Newton's equations of motion as:

$v=u+at$ , where, $v$ is the final velocity.

Now, plug in the given values and solve for $v$ .

$v=32-1.5(10.8)\\v=32-16.2=15.8\textrm{ m/s}$

Therefore, his final velocity is 15.8 m/s.

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2 years ago

Thylakoids contain chlorophyl that absorb solar energy

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Answer:

True

True statement:

Because pigment molecules absorb solar energy and thylakoids are pigment molecules

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2 years ago