An oceanic vessel surveys the ocean floor using ultrasonic waves. the ocean beneath the boat is 4600 meters deep. if the ultrasonic wave travels to the bottom of the ocean and back to the boat in 6 seconds, what is its average speed?

a) 770 m/s
b) 1530 m/s
c) 7700 m/s
d) 27600 m/s

B)1530 m/s

First, you must double the distance since the wave is traveling to the ocean floor and back to the vessel. The distance is 4600 meters x 2 or 9200 meters. Next, use the speed formula to solve for average speed: v = d/t. 9200m/6s = 1530 m/s.

for e2020. the answer would be some directions from the mountain range so we can find mt. whitney. to locate which direction is north, you should use a   compass. this would not only find mt. whitney, but also becuase of this long paragraph you would get points because it's not like anyone actually reads your work becuase once they read the first sentence it sounds dumb enough to not read becuase i'm not good at answering this but the answer is compass for your benefit.

for e2020 ; -;