A circuit component that is composed of a semiconductor layer sandwiched between two other semiconductor layers is a(n)

resistor

capacitor

inductor

transistor

Light from a sodium lamp passes through a diffraction grating that has 1000 slits per millimeter. the interference pattern is viewed on a screen 1.000 m behind the grating. the first (m = 1) two bright yellow fringes that are visible are 0.7288 m and 0.7300 m from the central maximum. what are the wavelengths of these two fringes?

Write down two additional questions about earth's magnetic field that will make your presentation more informative.

Aforce of 100 newtons is used to move an object a distance of 15 meters with a power of 50 watts. find the work dine and the time it takes to do the work