A car moving from A to D through points C and D bt BC=2AB=2CD called v1,v2,v3 segments AB, BC, CD with v2=2v1=4v3 respectively. Vtb of segment BD is 20km/h and travel time of car on segment AB is 1h. Calculate v1 and AD?

Truck traveling west on the highway experiences an acceleration to the east. what could be the cause of this acceleration

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.

In which type of system is power held solely by the central government and not shared with regional governments? group of answer choices federal unitary confederate oligarchic