Activity 9.5 relief and gradient (slope) analysis name: course/section on a visit to yosrmite, yos and some friend fnd a sice place along the menced re f a psicyo he aoogphi co sour map (fig a9.5.1) in which the indrs costous arr lbeled in fort. from yoer eing place p a decle on a better vantage point by walking up so pointb date 6600 6200 6200 merced river a. north 1000 feet figure a9.5.1 a using the labeled elevations of the index contours as your guide, what is the consour interval (the elevation didference between neo adjacent contours) in fig. a9.5.1 ft. b you have a bar scale on the map that indicates a distance of 1000 ft. on the ground in your picnic area. how long is that mm bar scale on the map in mm? c what is the horizontal distance from a tob measured along a straight line in f? (hint: measure the distance from a to b using a metric ruler on the map, and then use your measurement of how many mm on the map eqsal 1000 ft. in the field to find the answer using proportions.) ft. d what is the average gradient (elevation change divided by borinontal distance, both expressed in ft.) along a straight line from a to b? . 262 -6400 1 1 1 1 1 1n 1 1 1 1