Platinum-182 has a half-life of 3 minutes. If you have a 120-gram sample of Platinum how much of that sample will remain after 6 half-lives.

**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