Apiano tuner hears three beats per second when a tuning fork and a note are sounded together and six beats per second after the string is tightened. what should the tuner do next, tighten or loosen the string? explain.

Loosen the string

Explanation:

The beats per second determines the frequency, that is to say, the higher the beats per second, the higher the frequency and hence more pitch and less loudness. the beat frequency depends on the difference between the frequency of tuning fork and note. The piano tuner should loosen the string and go for fewer beats per second

the box does not move because you need to use a force greater than 300 n. you are only using 50 n. it needs to at least be 301 n for the box to move because then it is an unbalanced force and it will move the way that the greater force is pushing it. if you use only 300 n it will be a balanced force and will not move because the force you are exerting on the   box is the same as its force.

hope this !

im sorry if i went too in depth, i am going to include a link to a video on khan academy that will explain this.   hope that you like the video and that it explains more in detail to you.

that is the link.

increase masses, decrease separation