Answer:
Explanation:
60 meters is he answer for this question
The number of protons in the element.
Answer: Physical changes in nature could then be erosion in a mountain, the melting of snow, and a river freezing over from the cold. Since none of these changes affect the chemical composition of the mountain, the snow, or the river, they are physical changes.
Explanation:
Answer:
4m/s
Explanation:
May be different considering how long the pole is and how heavy the firefighter is.
