1. Using pollen grains placed in water,
explain how their motion supports the
idea that matter...
Answers: 3
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What is the earliest point in the universe that we can observe? why can’t we see back further than this?
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During a car accident, a 125kg driver is moving at 31m/s and in 1.5s is brought to rest by an inflating air bag. what is the magnitude of the change in momentum to the driver
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