The diagram shows the trajectory of a ball that is thrown horizontally from the top of a
building. The ball's vertical and horizontal
velocity vectors, along with the resultant
vectors, are also indicated. If the ball takes 4,0 s
to reach the ground, what is the ball's vertical
speed by the time it reaches the ground?

the first american roller coaster was the mauch chunk switchback railway, built in the mountains of pennsylvania in the mid-1800s. the track, originally built to send coal to a railway, was reconfigured as a "scenic tour."

co2reflects heat radiation back to earth buning coal and oil emits co2 globe warms

the small 0.38-kg slider is known to move from position a to position b along the vertical-plane slot. determine (a) the work done on the body by its weight and (b) the work done on the body by the spring. the distance r = 0.70 m, the spring modulus k = 154 n/m, and the unstretched length of the spring is 0.53 m

explanation:

-reverse card