1. constant speed is a steady speed from start to finish, instantaneous is not constant from start to finish.
2. The average speed of the marble is 5 m/s (meters per second).
3. Rider 1 will arrive at the destination before Rider 2.
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Answer:Fences, loud alarms, and keeping animals in a safe space
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Answer:
The use of rocks and minerals includes building material, cosmetics, cars, roads, and appliances.
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