I will give brainliest,

**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

If element x has 99 protons how many electrons does it have

Awave with a frequency of 500 hz is traveling at a speed of 100 m/s.what is the wavelength?