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Ahorizontal force of 120 n is required to push a bookcase across the floor at a constant velocity how much is the friction force that acts on the sliding bookcase
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Why is rain likely when warm, moisture-laden air meets cold air? a) the lighter warm air will rise and cool down, causing condensation and rain. b) the cold air moves faster and pushes the warm air away, causing condensation and rain. c) the moisture in the warm air condenses on contact with the cold air, causing rain to fall. d) the cold air mixes with the warm air, reducing its temperature causing moisture to condense.
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What is the quantity which is measured by the area occupied below the velocity- time graph?
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An object is placed in front of a concave mirror between the pole and the focus of the mirror, what is the nature of the image formed by the mirror
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Ahorizontal force of 120 n is required to push a bookcase across the floor at a constant velocity ho...
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