Four separate experiments were performed to compare the friction of different objects with gravity. One experiment used an ice cube. Another experiment used a rock. The third used an eraser, and the last used a wood block. Each object is placed at
one end of a plastic tray. The end of the tray is lifted slowly. A metric ruler is used to measure the height of the raised end of
the tray at which each object begins to slide.
Identify one similarity between the four experiments

Quiz1. which physical state of nitrogen has the highest entropy? a solid© b gasoc liquid

The human activities in two locations are described below: location a: rampant use of plastic containers location b: excessive use of pesticides and fertilizers which statement is most likely true? location a will have poor air quality because plastic is biodegradable. location a will experience water scarcity because plastic absorbs moisture. the population of honeybees will increase in location b because production of crops will increase. the population of fish in location b will decrease because the water is contaminated.

Which rate indicates the number of children that would be born per woman if she were to live to the end of her child bearing years