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sweet [91]
3 years ago
6

If a neutral metal comb is held near an object with a negative charge the comb will become charged by?

Physics
1 answer:
solong [7]3 years ago
6 0
The answer is d because it sets of a negative pulls type thing that makes it negative<span />
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The security alarm on a parked car goes off and produces a frequency of 769 Hz. The speed of sound is 343 m/s. As you drive towa
uysha [10]

Answer:

Explanation:

ASSUMING your speed is constant

f₀ = f(v + vo)/(v + vs)

   Δf = f approach - f depart

69.5 = (769(343 + vo)/(343 + 0)) - (769(343 - vo)/(343 + 0))

69.5 = 769(2vo/343)

  vo = 15.5 m/s

6 0
2 years ago
As you look out of your dorm window, a flower pot suddenly falls past. The pot is visible for a time t, and the vertical length
ololo11 [35]

Answer:

Explanation:

4 0
3 years ago
a car is going around a roundabout.explain why we say that it is accelerating even if it is moving at a constant speed.
kiruha [24]

Because 'acceleration' does NOT mean 'speeding up'. 
It means ANY change in motion ... speeding up, slowing down,
or changing DIRECTION.

When traveling a roundabout, or any curved path, the direction
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4 0
3 years ago
Tell me about Orion nebula
RSB [31]
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8 0
2 years ago
Ivan pushes a dresser with full drawers across his carpeted floor. What could Ivan do to reduce the amount of friction between t
aniked [119]

Answer:

Place some smooth tiles under the dresser

Smooth surfaces, like smooth tile, are easy to slide over. They create very little friction. Rough surfaces like carpet create much more friction.

remove the drawers from the dresser

Weight affects friction in that friction is directly proportional to the weight of the load one is moving. So reduce the weight, reduce the friction.

Explanation:

Speed does not impact friction, so moving the dresser slower won't help. Wind has nothing to do with the scenario, so that's not a correct option.

7 0
2 years ago
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