After 10 seconds, the submarine detects the reflected wave, calculate the distance of the submarine from the big rock. Velocity of ultrasonic wave = 1560 ms^-1 can someone help me ?

Which of the following represents an upside-down image?

Ann walks 80 meters on a straight line 33 ∘ north of east starting at point 1. draw ann's path. represent ann's walk with a vector of length 80 meters. draw the vector starting at point 1. the length given in the display is in meters.

Argon, neon, and xenon are examples of