Calculate the average speed of an automobile that travels 60km east and then 80km north in two hours

Aplane travels 1000 miles in 5 hours .what is the planes average speed?

**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

State the following: boyle's law and charle's law