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Roman55 [17]
3 years ago
7

An atom has 25 protons 30 neutrons and 25 electrons what is the charge of the atom nucleus

Physics
1 answer:
Alex17521 [72]3 years ago
3 0
The nucleus is always positive since thats where the protons are located and the neutrons have no charge....
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A car drives over a hilltop that has a radius of curvature 120 m at the top of the hill. at what speed would the car be travelin
FinnZ [79.3K]
The speed of a car travelling over a hill that has a radius of curvature should not exceed a certain speed other it will topple. This speed is related to the radius of curvature and the gravitational acceleration as shown below:

V^2 = Rg, where V = maximum speed, R = Radius of curvature, g = gravitational acceleration.

Substituting;
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6 0
3 years ago
How Do The Northern Lights work?
pishuonlain [190]

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3 years ago
What happens if the volume of gas is reduced?
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Answer:

the volume will increase

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6 0
3 years ago
Two Objects of the same size will always have the same mass” Is this statement correct?
attashe74 [19]

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6 0
3 years ago
Calculate:<br> The time taken for a plane to travel<br> 3,000 km at a speed of 200 m/s
Alborosie

Time = (distance) / (speed)

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Time = (3,000,000 m) / (200 m/s)

Time = <em>15,000 seconds</em>

That's 4 hours 10 minutes

6 0
3 years ago
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