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n200080 [17]
3 years ago
14

Do noble gases lose or gain electrons to get a full valence shell?

Physics
1 answer:
alexdok [17]3 years ago
8 0
They don't lose OR gain electrons as they've already achieved the octet rule and have 8 valence electronsn
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Can someone solve this problem and explain to me how you got it​
likoan [24]

Answer:

Explanation:

Coulomb's law states that the force of attraction or repulsion between any two charges is proportional to the product of the magnitude of charges and inversely proportional to the square of the distance between the charges

⇒F\alpha\frac{q1*q2}{r^{2}}

∴F=k\frac{q1*q2}{r^{2}}

where F is the force of attraction or repulsion

k is Coulumb's constant=9*10^{9}Nm^{2}C^{-2}

q1 and q2 are the magnitude of the charges

r is the distance between two charges

The force between the two charges is attractive if they are of different polarity

The force between the two charges is repulsive if they are of same polarity

Question 7:

Given: F=1.9*10^{-29}N, q1=q2=1.6*10^{-19}C

By coulomb's law,

1.9*10^{-29}=9*10^{9}*\frac{1.6*10^{-19}*1.6*10^{-19}}{r^{2}}

⇒r=3.5m

Question 6:

Given: q1=q2=-1.5*10^{-6}C, r=0.28m

By coulomb's law,

F=9*10^{9}*\frac{1.5*10^{-6}*1.5*10^{-6}}{0.28^{2}}

⇒F=0.26N

3 0
3 years ago
A net force of 15 N is applied to a cart with a mass of 2.1 kg. a. What is the acceleration of the cart? b. How long will it tak
Gennadij [26K]
The first question's answer is :
If, F=ma
Then, 15N= 2.1kg (a)
15/2.1=a
7.14=a
Therefore, acceleration = 7.14m/s^2

sorry I am not sure about the second question :-(
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