Please help! Please please please help Will give brainliest. Any links or irrelevant answers will be reported

Arowboat passenger uses an oar to push the boat off the dock by exerting a force of 40n for 3.0s. what impulse acts on the boat.

This is for my 8th grade science class, i really don’t understand. can someone me? , lol.

Alandscaper is shopping for landscaping materials. she wants to use materials through which water flows easily. which materials should she choose? check all that apply. clay gravel granite rocks with cracks loosely packed soil