Physics, 25.04.2020 05:08 sarahnd6907
Your friend has been given a laser for her birthday. Unfortunately, she did not receive a manual with it and so she doesn't know the wavelength that it emits. You help her by performing a double-slit experiment, with slits separated by 0.18 . You find that two adjacent bright fringes are 4.9 apart on a screen 1.4 mm from the slits.
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**urgent** roberto plans to use two transformers to reduce a voltage of 120 v to 4 v. he uses a transformer that has 300 coils in the primary winding and 50 coils in the secondary winding. he has four other transformers, as listed in the table. which transformer should roberto use to have an ending voltage of 4 v? a- w b-xc- yd- z
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Your friend has been given a laser for her birthday. Unfortunately, she did not receive a manual wit...
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