How is wind energy converted into electrical energy.

When you turn on a battery-operated device, an electrical circuit is

An object is 10 cm from the mirror, its height is 1 cm and the focal length is 5 cm. what is the image height? (indicate the object orientation by including the + or - sign with the answer.) hi = cm +1 -1 +10 -10

In positive numbers less than 1, the zeros between the decimal point and a non-zero number are blank significant