More energy, colour and I think less bright
Answer:
a 
b
Explanation:
Generally the force constant is mathematically represented as

substituting values given in the question
=> 
=> 
Generally the workdone in stretching the spring 3.5 m is mathematically represented as

=> 
=> 
Generally the workdone in compressing the spring 2.5 m is mathematically represented as
=>
=>
Answer:
false
Explanation:
discovered colours of the rainbow
Explanation:
I want to say option B - Both forces can act without objects touching.