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A brick weighing 30 N falls from a height of 15 m and sinks 0.7 m into the ground. What is the average force on the rock due to the ground as it sinks into the ground?
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Question: A rock thrown with speed 10.5 and launch angle 30.0(above the horizontal) travels a horizontal distance of = 18.0before hitting the ground. From what height was the rock thrown? Use the value = 9.810 for the fr ...
Question: Our sun's 5800 K surface temperature gives a peak wavelength in the middle of the visible spectrum. What is the minimum surface temperature for a star whose emission peaks at some wavelength less than 400 nm? t ...
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