Two musicians are playing the same instruments. the first one emits the sound with correct wavelength 58 cm while the second one is off, and the wavelength is 5 mm longer.
a) what is the frequency of the beats when they play together?
b) by how much does the second musician need to change her instrument’s wavelength so that thefrequency of the beats is reduced to 1 hz?

Current 1 of 8.4 a runs for 240 seconds and then stops. current 2 is 10.5 a. how long does current 2 have to un to deliver the same amount of charge as current 1? 88.28 192 s 2016 s 21,000 s

Samir watches a 100-minute movie on his spaceship. maria's spaceshipe flies in the same direction as samir's spaceship but she observes his move to last 125 minutes and his spaceship to be 40 m long. how long does samir observe his own spaceship to be? according to an observer on earth, planet x is stationary. maria and samir depart earth on their spaceships at the same time, each flying at 0.5c. maria flies toward planet x and samir flies in the opposite direction. according to maria, her voyage to planet x takes 9 years. how many years does marias voyage take according to samir?

What is a costume plot? why is it important to a film or theater production?