13. A steep waterside accelerates riders at 4.5m/s the entire time they are on the slide. How long is the alide if it takes 4.2seconds to get to the bottom (assuming they started from rest)?

11. you want to calculate the displacement of an object thrown over a bridge. using -10 m/s2 for acceleration due to gravity, what would be the total displacement of the object if it took 8 seconds before hitting the water?

Which component of the earth’s atmosphere is decreased due to photosynthesis?

Your friend increases her force on the desk by 30n . she doesn't change the direction of her push . what happens to the net force on the desk .will the desk accelerate