Can you guys answer these question, 40 points(Other topics that do not apply to this get reported)

Curious carl calculated the density of a cube to be 4.50 g/cm3. what is the density of the cube in g/l?

Global climatic patterns are changing because of the melting of polar ice caps. the melting of polar ice caps is an example of the interaction between the atmosphere and cryosphere cryosphere and geosphere hydrosphere and geosphere biosphere and cryosphere

Determine the force the sun exerts on an object with a mass of 80.0 kg if that object is on the earth. what is the force exerted by the moon on the same object? what is the force the earth exerts on it?