A 4.5m ladder leans against a vertical wall, making an angle of 50° with the horizontal. if the bottom of a window is 4m above the ground, what is the distance betweenthe top of the ladder and the bottom of the window?

Avolcano erupts next to a grassland area in a valley. a. describe three ways in which material released by the volcano could impact the grassland area. b. describe three ways in which the grassland ecosystem could recover after a volcanic eruption.

You hang a book bag on a spring scale and place the bag on a platform scale so that the platform scale reads 23.7n and the spring scale reads 13.8n. what is the magnitude of the force that earth exerts on the bag?

What is similar between metals and suspensions