Aplastic cube with a coin taped to its top surface is floating partially submerged in water. a student marks the level of the water on the cube, and then removes the coin and tapes it to the bottom of the cube. afterward, the student returns the cube to the water. a. above the water lineb. below the water linec. level with water line

Standing side by side ,you and a friend step off a bridge at different times and fall for 1.6s to the water below.your friend goes first,and you follow after he has dropped a distance of 2.0m.when your friend hits the water,is the seperation between the two of you 2.0m or more than 2.0m? verify your answer with a calculation.

Amira pulls a 3 pound wagon 4 feet. how much work has she done?

Global warming will produce rising sea levels partly due to melting ice caps but also due to the expansion of water as average ocean temperatures rise. to get some idea of the size of this effect, calculate the change in length (in m) of a column of water 1.45 km high for a temperature increase of 1.12°c. assume the column is not free to expand sideways. as a model of the ocean, that is a reasonable approximation, as only parts of the ocean very close to