As the population in a small town grows, a new water treatment plant is built. The plant is built on a local river where it can
release treated water. The treated water is released downriver from the town. The town also gets its drinking water from further up the river.
How might the new treatment plant affect the ecosystem?
Treated water from the plant would affect communities downriver.
Treated water from the plant would affect communities upriver.
Treated water would affect this growing city’s drinking water.
How might the new treatment plant affect the ecosystem?
Treated water from the plant would affect communities downriver.
Treated water from the plant would affect communities upriver.
Treated water would affect this growing city’s drinking water.
2 answers:
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Answer:
The average impact force is 12000 newtons.
Explanation:
By Impact Theorem we know that impact done by the sledge hammer on the chisel is equal to the change in the linear momentum of the former. The mathematical model that represents the situation is now described:
(1)
Where:
- Average impact force, in newtons.
- Duration of the impact, in seconds.
- Mass of the sledge hammer, in kilograms.
,
- Initial and final velocity, in meters per second.
If we know that ,
,
and
, then we estimate the average impact force is:
The average impact force is 12000 newtons.