Amanda wants to experiment with sugar cubes. Which of the following causes a sugar cube to only change
physically, not chemically?

A) burning the sugar cube with a match
B) crushing the sugar cube and dissolving it in water
C) dehydrating the sugar cube with sulfuric acid
D) chewing the sugar cube and digesting it

According to newtons universal law of gravitation, which would change the parh of the ball so it traces out widest curved path possible?

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.

Which planet do you think would be easiest for humans to colonize some day?