Answer: Velocity involves a particular direction, i.e. North. Speed does not include a direction.
It is b. It gains momentum when going down. Think of it like a sled. When you go up the hill, it goes slower, but when you go down the hill, you gain speed(momentum) and it increases
Answer:
The tension to bring the guitar string into tune is 372.95 Hz.
Explanation:
Given;
current frequency, f₁ = 248 Hz
current tension, T₁ = 350 N
fundamental frequency, f₂ = 256
The tension on the string to bring the guitar string into tune is calculated as;

Therefore, the tension to bring the guitar string into tune is 372.95 Hz.