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ohaa [14]
3 years ago
5

How does Static Electricity happen? Please provide 3 Real Life Examples of Electro Static Electricity.

Physics
1 answer:
andriy [413]3 years ago
5 0

Explanation:

When two materials come in contact with each other , there occurs the movement of electrons from one material to other , hence , there is an excess positive charge on one of the material , and hence lead to static electricity .

Examples -

  • brushing dry hairs via a plastic comb can generate static electricity .
  • Clothes stuck to one another in the dryer
  • Walking on the floor with carpet and touching a door can lead to a shock , due to static electricity .
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Identify each process labeled in the diagram
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3 years ago
A long ramp made of cast iron is sloped at a constant angle θ = 52.0∘ above the horizontal. Small blocks, each with mass 0.42 kg
dezoksy [38]

Answer:

For cast iron we have

h = 0.92 m

For copper

h = 1.05 m

For Lead

h = 1.23 m

For Zinc

h = 2.43 m

Explanation:

As we know that final speed of the block is calculated by work energy theorem

W_f + W_g = \frac{1}{2}mv^2

now we have

-\mu_k mg cos\theta(\frac{h}{sin\theta}) + mgh = \frac{1}{2}mv^2

now we have

v^2 = 2gh - 2\mu_k g h cot\theta

v = \sqrt{2gh(1 - \mu_k cot\theta)}

For cast iron we have

4 = \sqrt{2(9.81)(h)(1 - 0.15cot52)}

h = 0.92 m

For copper

4 = \sqrt{2(9.81)(h)(1 - 0.29cot52)}

h = 1.05 m

For Lead

4 = \sqrt{2(9.81)(h)(1 - 0.43cot52)}

h = 1.23 m

For Zinc

4 = \sqrt{2(9.81)(h)(1 - 0.85cot52)}

h = 2.43 m

4 0
3 years ago
2. Xét một điểm nằm trên vành ngoài của lốp xe máy cách trục bánh xe môtô 25cm.
Rashid [163]

Answer:

b. Cho biết tốc độ của xe là 4m/s. Hãy tính tốc độ góc của điểm trên vành ngoài bánh xe.

Explanation:

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6 0
2 years ago
1000-kg car travelling down on a steepest road, which has inclined angle of 18
eduard

Answer:

1

Explanation:

it was thinking about how much and then the other than you can get it would be able to ask her to be able and then the way you have been sent from your browser

8 0
3 years ago
¿Cómo es el movimiento uniforme de los pedales de una bicicleta con respeto a la tierra y con respecto al ciclista?
Nastasia [14]
Respecto al ciclista
6 0
3 years ago
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