The current through a 12v lamp when it is connected to a 12v battery is 2.0 a. calculate the resistance of the lamp at this current

Which object is most likely represented by a dot?

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?

Which bonds are found inside a water molecule