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taurus [48]
3 years ago
14

The nucleus of an atom can have either a positive or negative charge true false?

Physics
1 answer:
deff fn [24]3 years ago
4 0

False because nucleus just consists proton which is positively charged and neutron which is neutral. It does not contain electron , so nucleus only can be positive charge

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viva [34]

Explanation:

It is given that,

Wavelength of red light, \lambda=676.4\ nm=676.4\times 10^{-9}\ m

Power of the laser, P=300\ mW=0.3\ W

(a) The energy carried by each photon is given by :

E=\dfrac{hc}{\lambda}

E=\dfrac{6.63\times 10^{-34}\times 3\times 10^8}{676.4\times 10^{-9}}  

E=2.94\times 10^{-19}\ J

(b) Let n is the number of photons emitted by the laser per second. It can be calculated as :

n=\dfrac{Power}{Energy\ of\ one\ photon}

n=\dfrac{0.3}{2.94\times 10^{-19}}      

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7 0
3 years ago
Harry and Hagrid needed to get money out of Gringotts bank. The bank cart was accelerating at a rate of 4 m/s2 and it had a mass
zhuklara [117]
F=m•a(squared)
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64,000 Joules
4 0
3 years ago
Read 2 more answers
A 2.0-m wire carrying a current of 0.60 A is oriented parallel to a uniform magnetic field of 0.50 T. What is the magnitude of t
konstantin123 [22]

Answer:

The force experienced  is 0.6 N

Explanation:

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length of wire L= 2 m

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magnetic field B= 0.5

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7 0
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Mass of the vehicle = 2000 kg
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Radius of the curve = 80 m
Then
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                            = 15625 Newton second
I hope that this is the answer that you were looking for and the answer has come to your desired help. 
3 0
3 years ago
How Many Days Would a Scientist Have To Wait For The Radioactivity To Be 12.5 The Starting Amount
kiruha [24]
They have to wait 18 days.
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4 years ago
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