A ductile metal wire has resistance R. What will be the resistance of this wire in terms of R is it is stretched to three times its original length, assuming the density and resistivity of the material do not change when the wire is stretched?

Study the diagram showing the range of temperature in the earth’s layers. which temperature most likely corresponds to the asthenosphere? 1,613°c 2,521°c 3,628°c 6,217°c

Because light travels in a straight line and casts a shadow, isaac newton hypothesized that light is

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?