Help Me Fast Please!! A piano tuner hears a beat frequency when using a tuning fork to tune a piano wire. The piano tuner should adjust the tension in the wire to
increase the amount of interference and increase the beat frequency.

increase the amount of interference and decrease the beat frequency.

decrease the amount of interference and decrease the beat frequency.

decrease the amount of interference and increase the beat frequency.

Imagine that you have two balloons (or, better yet, actually inflate two balloons, if possible). create static electricity around one of the balloons by rubbing it against your hair or your sweater and then bring that balloon close to the other balloon, which has not been charged. try this with at least one other object—and for variety in the discussion, avoid using an object already described by your classmates. then, for your initial post to the discussion, answer the following questions: what happened with the two balloons?

What is the weight of a feather (mass = 0.0001 kg) that floats through earth's and the moon's atmospheres?

Difference between series and parallel circuits