Based on Newton's first law, you can infer that, once started, a ball will continue to roll down a hill, unless a. an outside force acts upon it b. the hill is too steep c. the hill is covered in snow d. there is a house at the top of the hill. ​

Explanation:

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a is the correct answer.

Explanation:

unless an outside force acts upon it, the ball doesn't stop and will continuing rolling down the hill.

the nation will get back everything that was lost

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answer: do you have any options

explanation: