Complete question is;
Which action would increase the strength of the electric force between the balloon and the water?
A. Holding a magnet near the stream of water
B. Holding the balloon closer to the stream of water
C. Holding a magnet near the balloon
D. Moving the balloon farther away from the stream of water
Answer:
B. Holding the balloon closer to the stream of water
Explanation:
When we take a charged balloon near water, what happens is that it makes electrons to be pushed away which in turn leaves the area to be positively charged. This area is now attracted to the balloon and thus the strength of the electric force between the balloon and the water is increased.
For basic it would be a proton and a neutron to create a nucleus and outside are electrons surrounding it.
Answer:
(I). The sum of the vectors is (7i-5j).
(II). The sum of the vectors is (8i+7j).
Explanation:
Given that,
(I). Vector A 
Vector B 
Suppose, (II). Vector A 
Vector B 
(I). We need to calculate the sum of the vectors
Using formula of sum
Where,
![\vec{C}= sum of the vector A and bPut the value into the formula[tex]\vec{C}=(3i-12j)+(4i+7j)](https://tex.z-dn.net/?f=%5Cvec%7BC%7D%3D%20sum%20of%20the%20vector%20A%20and%20b%3C%2Fp%3E%3Cp%3EPut%20the%20value%20into%20the%20formula%3C%2Fp%3E%3Cp%3E%5Btex%5D%5Cvec%7BC%7D%3D%283i-12j%29%2B%284i%2B7j%29)
(II). We need to calculate the sum of the vectors
Using formula of sum
Put the value into the formula
Hence, The sum of the vectors is (7i-5j).
The sum of the vectors is (8i+7j).
The strong force is the only force that can overcome the repulsion between two <span>positively charged nuclei and bind them together.</span>
