Solar power many be a bit pricey, but it is more efficient than coal and it is better for the environment, coal could be made easily and is cheaper, but Solar power is efficient.
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Answer:
The ball will swing in the direction it was going once the string breaks.
Explanation:
Answer:
1. Albert
2. Charlie
3. 5 seconds
4. 14 seconds
5. 8.33... meters per second