Atrain travels 600 km in 4 hours. what is the speed of the train?

The differences between  a compression wave and a transverse wave?

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.

Need asap ‼️ 20 pts which gravitational force field diagram is drawn correctly? (answers in pictures below)