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White raven [17]
4 years ago
8

What is friction in physics?

Physics
2 answers:
Brilliant_brown [7]4 years ago
6 0

Friction is a force that moves back a sliding object

Triss [41]4 years ago
4 0

Friction is a force that holds back the movement of a sliding object. You will find friction everywhere that objects come into contact with each other. The force acts in the opposite direction to the way an object wants to slide.

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A particle with a charge of 2e moves between two points which have a potential difference of 75V. What is the change in potentia
Sonbull [250]
Electric potential energy is defined as Ep=Q*V where Q is the magnitude of the charge and V is the potential difference. So when a charge moves between the points that have a potential difference, it's energy changes. 

In our case: 

Q=2e=2*(-1.6*10^-19) C
V=75 V

Ep=(-3.2*10^-19)*75

Ep=-2.4*10^-17 J

The change in potential energy of the charge is -2.4*10^-17 J 
5 0
3 years ago
The ball rolling along a straight and level path. The ball is rolling at a constant
Aleksandr-060686 [28]

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Explanation:

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6 0
3 years ago
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It's H3O+.

Explanation:

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8 0
3 years ago
Ocean waves are hitting a beach at a rate of 3.5 Hz. What is the period of the waves?
Radda [10]

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the correct answer is 0.286 s

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olganol [36]

Answer:

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8 0
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