1. A miner strikes what he thinks is a lead vein. To be sure it is lead, the miner checks it's density. The metal has a mass of 12 grams and occuples a volume of 3cmº. Calculate Its density.​

Jessie ran 5000 meters from the cops and an average speed of 6 meters / second before he got caught . how long did he run?

**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

In an experiment, how can i change human errors? be specific.