11.13 A telephone line operating at 1 kHz has R 5 6.8 V/mi, L 5 3.4 mH/mi, C 5 8.4 nF/mi, and G 5 0.42 mS/mi. Find (a) Z and g, (b) phase velocity, (c) wavelength.

When considering gravity acceleration and the force of acceleration, what must be true? a. the direction of acceleration must be perpendicular to the direction of the force. b. the direction of the force and the direction of acceleration must be the same as each other. c. the direction of the force and the direction of acceleration must be opposite of each other. d. the mass of the body must be the same as the acceleration of the body.

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?

Ways that industry and agriculture use physical properties to separate substances