Meg and rachel each have bowling balls with the same mass. they both roll them as hard as they can and then measure the speed of the balls. meg's ball and rachel's ball were measured to have the exact same speed. what do you know about the forces applied by the girls? a) meg applied more force than rachel. b) rachel applied more force than meg . c) they applied an equal amount of force. d) they applied a almost the same amount of force.

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 8 options: the cold balloon expands and rises. the warm balloon shrinks and sinks. 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 warm balloon expands and rises. the cold balloon shrinks and sinks.