Answer:
I think the answer is C too
The answer is B. The obvious questions do not always lead to interesting results. This is because if everyone did the same thing every time, we wouldn't find any new data. With variables, we have so many different options, leading to creativity and new data found!
Answer:
The value is 
Explanation:
From the question we are told that
The mass of the ball is
The initial speed of the ball is 
The spring constant is 
The compression distance is 
Generally the energy stored in the string is mathematically represented as

=>
=>
Generally the kinetic energy of the ball is mathematically represented as

=>
Generally the KE the ball have when it has compressed the spring is mathematically represented as

=> 
=> 
Answer:
I'm sorry I don't have a answer but I like your pfp