The combined mass of a cyclist/bike is 80 kg, the drag coefficient is 0.80, the frontal area is 0.45 m^2, and the density of air is 1.2 kg/m3. The slope of the hill is known What is the cyclist acceleration when initiating motion (zero velocity) on the steep hill with no wind?

**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