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ladessa [460]
3 years ago
7

Why does a glass rod become positively charged when it is rubbed with a silk cloth?

Physics
2 answers:
earnstyle [38]3 years ago
4 0

Answer:

<u><em>A glass rod becomes positively charged when it is rubbed by a silk because the glass rod is negetively charged and when it is rubbed by the conductors like silk it gets positive charged.</em></u>

<u><em /></u>

<u><em>Explanation:</em></u>

satela [25.4K]3 years ago
3 0

Answer:

Hope this helps ya out

Explanation:

The core has positive charge, the electrons have negative charge. When you are rubbing the glass rod with the silk cloth, electrons are stripped away from the atoms in the glass and transferred to the silk cloth. This leaves the glass rod with more positive than negative charge, so you get a net positive charge.

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The coefficient of performance of a residential heat pump is 1.6. Calculate the heating effect in kJ/s this heat pump will produ
Andre45 [30]

Answer:

Q_{H}=6.4kJ/s

Explanation:

Given data

Coefficient of performance of a residential heat pump=1.6

Electrical power P=4kW

Required

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Solution

The rate of heat produced is given as

Q_{H}=COP_{HP}Win\\

Substitute the given values

So

Q_{H}=4kW*1.6\\Q_{H}=6.4kJ/s

6 0
3 years ago
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3 years ago
the public is not yet able to purchase hydrogen fuel cell powered cars because engineers have to determine
grigory [225]

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3 0
4 years ago
Why a hole at the bottom of a ship is more dangerous than the one that is near the surface?​
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8 0
2 years ago
Một người đi xe đạp trong 40 phút với vận tốc là 12km/h. Hỏi quãng đường đi được là bao nhiêu?
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