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a rock is tossed straight up from the ground with a speed of 16 ms when it returns it falls into a hole 10 m deepwhat
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to determine how well a bicycle wheel is lubricated the mechanic in the repair shop starts it spinning and lets it
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an object weighing 300 n and the volume of 05 m3 in air is immersed in oil after being tied to a string connected to a
1 a television 65w a refrigerator 12kw an electric kettle 650w and 10 lamps 40 w each are connected in series in a