一物块重600N,放在不光滑的平面上,摩擦系数f=03,在左侧有一推力150N,物块有向右滑动的趋势Fmax=__________,所以此物块处于静止状态,而其F=__________。
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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