At the top of a trajectory, a mortar shell explodes into two fragments: a 2.5 kg piece moves south west with a horizontal velocity of 100 m/s while 3.5 kg piece moves north with a horizontal velocity of 70 m/s. What was the horizontal direction of the cell just before explosion?

An object starts from rest at point f and speeds up continuously as it moves around an oval. a. choose a point about 1/8 th of the way around the oval from point f, and label it point g. draw a vector to represent the velocity of the object at point g. b. determine the change in velocity vector   between points f and g.

The energy released by a nuclear fusion reaction is produced when

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