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4 years ago

Explained why the thread behaves in this manner

Physics

1 answer:

Bezzdna [24]4 years ago

7 0

Thread? This? I think you forgot the picture

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Two tiny conducting spheres are identical and carry charges of -20μC and +50μC. They are separeted by a distance of 2.50cm. (a)

Dahasolnce [82]

Answer:

$14400\ \text{N}$ , Attractive

$3240\ \text{N}$ , Repulsive

Explanation:

$q_1$ = -20 μC

$q_2$ = 50 μC

r = Distance between the charges = 2.5 cm

k = Coulomb constant = $9\times 10^9\ \text{Nm}^2/\text{C}^2$

Electrical force is given by

$F=\dfrac{kq_1q_2}{r^2}\\\Rightarrow F=\dfrac{9\times 10^9\times (-20\times 10^{-6})\times (50\times 10^{-6})}{(2.5\times10^{-2})^2}\\\Rightarrow F=-14400\ \text{N}$

The magnitude of force each sphere will experience is $14400\ \text{N}$

Since the charges have opposite charges they will attract each other.

Now the charges are brought into contact with each other so the resultant charge will be

$q=\dfrac{q_1+q_2}{2}\\\Rightarrow q=\dfrac{-20+50}{2}\\\Rightarrow q=15\ \mu\text{C}$

$F=\dfrac{kq^2}{r^2}\\\Rightarrow F=\dfrac{9\times 10^9\times (15\times 10^{-6})^2}{(2.5\times 10^{-2})^2}\\\Rightarrow F=3240\ \text{N}$

The magntude of the force the spheres experience will be $3240\ \text{N}$

The spheres have the same charge now so they will repel each other.

7 0

3 years ago

The overall charge of the nucleus is ______

Andrews [41]

The answer in positive

7 0

4 years ago

Can someone explain this please?<br> (:

topjm [15]

Answer:

a= kinetic energy vs. different masses at same speed, b= kinetic energy vs. same masses at different speeds

Explanation:

graphs are looking at speed so masses don't matter as much. same speed the whole time will equal same kinetic energy the whole time.

8 0

3 years ago

Which of the following is a strategy for remaining alcohol-free?

just olya [345]

Answer:

I'm not sure if your question is how do you refuse alcohol but my answer is D.

Explanation:

If you get offered to drink you can use good excuses such as, "That's not really my things sorry." Or " Nah, i'm good". Make sure it is a firm response so the offerers don't keep asking

Hope this helps

if it does please mark brainliest :D

-A. Hazle

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4 years ago

( 93 POINTS )If light is the fastest thing that travels how does the darkness get there first?

tester [92]

Answer:

Darkness is just the Absence of light so it's technically always there

5 0

3 years ago

Explained why the thread behaves in this manner​

Explained why the thread behaves in this manner