Akey falls from a bridge that is 44 m above the water. it falls directly into a model boat, moving with constant velocity, that is 19 m from the point of impact when the key is released. what is the speed of the boat

The time it takes for the key to fall 44 m is

(notice I'm taking the downward direction to be positive)

The boat, moving at a presumably constant speed, then has 3.0 s to travel 19 m to the point of impact, which means its speed must be

d.7.5cm is your answer

igneous rocks also form where plates converge. the subducting plate melts as it sinks into the crust of the earth, and the melt rises into the overriding plate forming volcanoes. metamorphic rocks are formed mainly in the lithosphere, wherever there is high pressure and high temperature. -woods