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Does a negative acceleration always mean that the object is slowing down?
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Describe one method by which the distance to stars from Earth is measured, and one modern improvement to this method which increases its accuracy.
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A 4.74 kW kettle holds 1kg of water at a room temperature of 21 °C. How long would it take the kettle to bring all the water to a boiling point of 100 °C? Assume the kettle is 100% efficient and the specific heat capacity of water is 4200 j/kg.
What are Newton's 3 laws of motion?
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