An elevator ascends at a constant speed of 4 m/s, how much time is required for the elevator in order to travel 120 m upwards?

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.

Chemical energy is a form of energy. a. heat b. kinetic c. potential d. electromagnetic

Select the correct answer. what does the process of natural selection involve?