A student fires a cannonball diagonally with an initial speed of 50.0m/s. Neglect drag and the initial height of the cannonball. For the vertical motion, consider the
cannonball's flight until maximum height. For the horizontal motion, consider
the total flight

Ineed with these last two questions: 1) what are two types of cold air masses that influence the weather in north america? name them and describe their humidity. 2) describe the motion of a cold air mass and a warm air mass and the weather you would expect at a warm front and an occluded front.

Which lists the fundamental forces in order, from strongest to weakest? strong nuclear, weak nuclear, electromagnetic, gravitational strong nuclear, electromagnetic, weak nuclear, gravitational gravitational, weak nuclear, electromagnetic, strong nuclear electromagnetic, gravitational, strong nuclear, weak nuclear

If an athlete runs once around a track, back to the starting line, her average velocity is zero. true or false?