a 100.0 g sample of water at 27.0°c is poured into a 77.4 g sample of water at 89.0°c. what will be the final temperature of the water?

Explain how earth is like a giant bar magnet. how is our magnetic field made?

According to the passage weisers mother could be blamed for

Afish fossil is found in a rock. a foot bone and tooth are found in an older layer of the same rock. what can scientists learn from the rock? a) the area changed from land to water. b) the area changed from water to land. c) the area has always been land. d) the area was once an ocean.