A student standing on a hill throws a snowball horizontally 4.5 m above the level ground toward a smokestack 15 m away. The snowball travels a path that includes positions A and B, shown in the diagram above. At which position, if either, is the magnitude of the snowball’s velocity vector greater? Justify your answer.

If the snowball hits the smokestack 1.2 m above the base, how fast was it thrown? (Think about what the y displacement of the snowball is)

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 2 options: the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the cold balloon expands and rises. the warm balloon shrinks and sinks. the warm balloon expands and rises. the cold balloon shrinks and sinks.