When the switch of a ceiling fan is turned on, the electrical energy moving through the fan's motor is converted into mechanical energy and the fan blades will spin. Which of the following explains this conversion? A. Law of Conservation of Energy
B. Law of Conservation of Mass
C. Newton's 3rd Law
D. Law of Inertia

An object is 10. cm from the mirror, its height is 3.0 cm, and the focal length is 2.0 cm. what is the image height? (indicate the object orientation by including the + or - sign with the answer.) hi = cm +1.33 -1.33 +0.75 -0.75

**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

What quantity do units represent in value