9. A gecko crawls vertically up and down a wall. Its motion is shown on the following graph of vertical position y vs. time t. What is the average velocity of the gecko between the times t=0 and t = 7s? 5 points Captionless Image 1.0 m/s .57 m/s -1.0 m/s -.57 m/s

“other instruments such as gravimeters and magnetometers are also used in the search for petroleum. extracting crude oil normally starts with drilling wells into an underground reservoir. when an oil well has been tapped, a geologist (known on the rig as the "mudlogger") will note its presence. “ this is what i found on google i hope it