Answers: 3
Physics, 22.06.2019 16:00
Amichelson interferometer operating at a 600 nm wavelength has a 3.02-cm-long glass cell in one arm. to begin, the air is pumped out of the cell and mirror m2 is adjusted to produce a bright spot at the center of the interference pattern. then a valve is opened and air is slowly admitted into the cell. the index of refraction of air at 1.00 atm pressure is 1.00028.how many bright-dark-bright fringe shifts are observed as the cell fills with air?
Answers: 1
Physics, 23.06.2019 06:00
The frequency of a tuning fork can be found by the method shown. a long tube open at both ends is submerged in a beaker of water, and the vibrating tuning fork is placed near the top of the tube. the length l of the air column is adjusted by moving the tube vertically. the sound waves generated by the fork are reinforced when the length of the air column corresponds to one of the resonant frequencies of the tube. the smallest value for l for which a peak occurs in sound intensity is 7 cm. l what is the frequency of the tuning fork? the speed of sound in air is 345 m/s. answer in units of hz
Answers: 2
Physics, 23.06.2019 08:10
Which research method uses information that governments, businesses, and educational institutions have already made available for public use? survey correlational research cross-cultural research secondary analysis
Answers: 2
Physics, 23.06.2019 19:00
The velocity of a car traveling in a straight line increases from 0 meters/second to 30 meters/second in 8 seconds. what is the average acceleration of the car? a. 3.75 meters/second b. 3.75 meters/second2 c. 0.27 meters/second2 d. 0.27 meters/second
Answers: 1
State coulombs law in word...
Mathematics, 30.06.2019 15:00
Mathematics, 30.06.2019 15:00
Mathematics, 30.06.2019 15:00
Mathematics, 30.06.2019 15:00
Mathematics, 30.06.2019 15:00
English, 30.06.2019 15:00
Mathematics, 30.06.2019 15:00
Mathematics, 30.06.2019 15:00
Spanish, 30.06.2019 15:00