A fisherman in the sea watches a bird oscillate on the waves. He notices, he doesn't oscillate simultaneously with him, but he is on the top of the wave δ t = 0.1 t₀ time after him. There are always at least three waves between him and the bird and they are coming towards the fisherman. And the distance between them is constant. How far away is the bird if the wave length is λ = 2m? What is the period of oscillation on the fisherman if he starts moving towards the bird at v=1?

If an inclined plane is 5 m long and 2 m high, what is its mechanical advantage? a. 2.5 b. 3 c. 7 d. 10

A3030 cmcm wrench is used to loosen a bolt with a force applied 0.30.3 mm from the bolt. it takes 6060 nn to loosen the bolt when the force is applied perpendicular to the wrench. how much force would it take if the force was applied at a 3030 degree angle from perpendicular? a 3030 cmcm wrench is used to loosen a bolt with a force applied 0.30.3 mm from the bolt. it takes 6060 nn to loosen the bolt when the force is applied perpendicular to the wrench. how much force would it take if the force was applied at a 3030 degree angle from perpendicular?

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