Students of different ages were given the same puzzle to assemble. the puzzle assembly time was measured. the puzzle is meant for ages 5-8. what’s the hypothesis?

In positive numbers less than 1, the zeros between the decimal point and non zero are significant

How is the gravitational force related to the distance between two objects?

Apebble is thrown into a calm lake, ripples are formed from the center and move outward. the water particles in the lake travel in a circular pattern that moves up and down on the surface of a lake, and the energy travels a) diagonally. b) downward. c) horizontally. d) upward.