It took 3.5 hours for a train to travel the distance between two cities at a velocity of 120 km/hr how many kilometers lie between the two cities

The sun generates both mechanical and electromagnetic waves. which statement about those wave is true?

What are the three ways that an object can accelerate

How are the crust and the inner core alike? a) they are both solid. b) they both have the same temperature. c) they are both under the same pressure. d) they are both very close to the center of the earth.