Answer:

Explanation:
From the question we are told that:
Period of spring 
Initial Position of Mass 
Final Mass period 
Generally the equation for the Mass location is mathematically given by



Answer:
The positive and negative charges balance each other. Overall, the atom is uncharged (neutral). However, if something happens to make an atom lose or gain an electron then the atom will no longer be neutral. An atom that gains or loses an electron becomes an ion.
Explanation:
I think this is the answer : D
Answer:
final position = 325 m
Explanation:
distance covered in 1 second = speed x time
= 355 m/s x 1 s
= 355 m
∴ final position = initial position + distance covered
= - 30 m + 355 m
= 325 m
Answer:
<h3>The answer is 12 m/s²</h3>
Explanation:
The acceleration of an object given it's mass and the force acting on it can be found by using the formula

f is the force
m is the mass
From the question we have

We have the final answer as
<h3>12 m/s²</h3>
Hope this helps you
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).