Pls size of a zit is 1 cm. to cover it with makeup prople use a concave mirror with focal length of 10 cm. how big is the image of the zit when u look at it from the mirror?

a) image is 4cm from the mirror

b) image is 7cm from the mirror

pls

What makes thermal imaging cameras useful? they can detect differences in color. they can detect differences in wave speeds. they can detect differences in temperature. they can detect mechanical waves.

The text compares alternating current with direct current. how are they different? a alternating current reverses direction in the electrical wiring. direct current flows in one direction only. b direct current reverses direction in the electrical wiring. alternating current flows in one direction only. c direct current is powered by solar energy. alternating current is powered by electrical energy. d alternating current does not move in the electrical wiring. direct current does move in the electrical wiring.

How does an insulator stop the flow of an electric current? insulators convert electric energy to other forms of energy