Irene drops a clay ball at time t=0. The ball stops when it hits the ground. Which of the following graphs best shows the velocity v of the clay ball from when it is dropped until it hits the ground?

The free body diagram shows a box being pulled to the left up a 25-degree incline. the magnitude of the normal force is

Rohit is trying to tune an instrument

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.