Each floor has a height of 4 meters. After interviewing a number of patrons at school, the consensus was that they could hear the elevator falling for about 1.56 second before it hit the ground floor.

Who was the first scientist to measure speed as distance over time?

In one or two sentences, describe how you did in the balancing game. in a few more sentences, explain one strategy you learned for balancing more complex equations.

Greg drew a diagram to compare two of the fundamental forces. which labels belong in the areas marked x, y and z? gravitational force electromagnetic force x. attractive y repulsive z: infinite range x: infinite range y attractive z. repulsive x. always attractive y: infinite range z: attractive or repulsive x. attractive or repulsive y infinite range z: always attractive