A ball is resting on the front end of a boat. The boat is moving straight forwards toward a dock. According to Newton's first law of motion, when the front of the boat hits the dock, how will the ball's motion change?
A. the ball will remain at rest
B. the ball will move backwards
C. the ball will move forwards
D. the ball will move sideways
Ans: B. the ball will move backwards
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a. true b. false
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a. Nutrition monitoring b. Nutrition intervention c. Nutrition surveillance d. Nutrition assessment
Tea made from what shrub is thought to cure stomachache among black people?
a. redroot b. yellowroot c. blackroot d. greenroot e. marshmallow