What is the largest volcano in the solar system

Aball tossed vertically upward from the ground next to a building passes the bottom of a window 1.8 s after being tossed and passes the top of the window 0.20 s later. the window is 2.0 m high from top to bottom. what was the ball's initial velocity? the unit vector j^ is directed upward. how far is the bottom of the window from the launch position? how high does the ball rise above the launch position?

Can anybody me with this? ? (picture included.)

4. if you were an astronaut on the moon, what would you experience? what would you see from your perspective?