PLEASE HELP How many significant digits are in each measurement?

130000 dg
35.002 mm
3.7 x 10-3 L
1000 s

How will the system respond to a temperature increase?

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 of the following is not a transverse wave? a) soundb) lightc) radiod) all of thesee) none of these