Two wires enter a box, are each connected to a terminal, and then exit again. The total conductor count is

Astudent wears sunglasses to her read a book more easily which wave interaction occurs as light passes from the air into the plastic lenses? a polarization b.refraction c.diffraction d. interference

What are the similarities & differences between a thermistor and a light dependent resistor in physics?

The diagram shows a boulder rolling down a hill into a valley and then up the opposite hill. at which position does the boulder have the greatest kinetic energy? ab c d