A student fires a cannonball horizontally with a speed of 39m/s from a height of
73m. Neglect drag.

What was the cannonball's initial horizontal speed?

What was the cannonball's initial vertical speed?

How long did the ball remain in the air?

How far from the base of the building will the ball land (measured along the
ground)?

Describe the path of the electric current through a circuit?

What structural formula represents 4 electrons shared between two atoms?

Aplayground slide is 8.80 ft long and makes an angle of 25.0° with the horizontal. a 63.0-kg child, initially at the top, slides all the way down to the bottom of the slide. (a) choosing the bottom of the slide as the reference configuration, what is the system's potential energy when the child is at the top and at the bottom of the slide? what is the change in potential energy as the child slides from the top to the bottom of the slide? (include the sign of the value in your answer.)