A ball is launched horizontally from the top of a cliff with an initial velocity of 20 m/s. If the ball strikes the ground after five seconds, then (a) how high was the cliff and (b) how far from the base of the cliff will the ball land?

Alice added sodium chloride to water and stirred the water for several minutes. alice is most likely trying to demonstrate that ionic compounds a. are hard. b. can dissolve. c. are clear. d. can melt.

Which units can be used to measure length or distance? check all that apply. gram meter kilometer liter inch

Students design a model roller-coaster track. they place a rubber ball at the highest point on the track and let it go. the ball rolls along the track pulled only by the force of gravity. eventually, it comes to a stop. which change to the design will result in the ball moving the greatest distance?