Amotorboat is traveling at 4m/s. the current is traveling 2m/s in the same direction as the motorboat. how much time will it take the boat to travel 120 meters? pls answer

This question is worth 54 points ! rock falls from a ledge to the ground what energy conversion occurs during this process a potential to kinetic b kinetic to potential c thermal to mechanical d chemical to mechanical

Describe the path of a ray that approaches a mirror parallel to the principal axis.

Need in all of themmm only answer if you know plsssss