A 50 kg car collided with a tree on the road at a speed of 50 m/s and fell into a ditch 3 seconds after reversing at a speed of 10 m/s. If the depth of the hole is 10 times the ratio of the last minute velocity to the initial speed of the vehicle , then if a 0.1 kg ball is thrown down from this height at a speed of 10 m/s, a 0.5 kg mass rat for the momentary velocity before touching the ground .What speed will be gain tha rat

The bubbles in a carbonated soft drink are produced when carbonic acid decomposes to form carbon dioxide and water. in a closed system, this equilibrium exists as why does a carbonated soft drink lose carbonation when the container is left open? a.water evaporates, which favors the formation of h2co3. b.pressure decreases, which favors the formation of h2co3. c.the open container warms up, which causes more gas to escape. d.co2is removed, which favors the formation of h2co3.