Answer:

Explanation:
From the question we are told that:
Mass 
Drop distance 
Generally the equation for Spring Constant is mathematically given by



Answer:
Explanation:
Given
Both cars mass is m
and solving problem in Vertical and horizontal direction
considering + y and +x to be positive and u be the final velocity of system
Conserving Momentum in Vertical direction

------1
Conserving momentum in x direction
-----2
squaring and adding 1 &2




The answer is "heat transfer."
1 Bc I just did it and got it right
Thank you for posting
your question here at brainly. Feel free to ask more questions.
<span>The
best and most correct answer among the choices provided by the question is<span> A.
If the uncharged object is a conductor, the charged object can attract opposite
charges. </span></span>
<span><span>
</span><span>Hope my answer would be a great help for you. </span> </span>
<span> </span>