So i converted everything first;
<span>7.0 C ---> 280 K </span>
<span>49 mL---> 0.049 L </span>
<span>74mL---> 0.074 L </span>
<span>THEN I tried setting it up by the combined law formula which is P1V1/T1=P2V2/T2 </span>
Answer:
Final velocity at the top of the ramp is 6.58m/s
Explanation
Check the attachment
<span>
The taut guitar string haspotencial energy which we can see in action.</span> <span>· so option a is correct.</span>