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如图所示，当你手握水杯时，手和水杯都在空中静止，且水杯底所在平面是水平的．下列各对力属于平衡力的是（ ）
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冰冰用手握着一个重为10N的水杯静止在空中杯口竖直向上手的握力为20N则水杯受到手的摩擦力为N.若使
如图所示用6N的力握住总重为1.5N的水杯静止不动水杯与手之间的摩擦力是N若将手的握力增大到8N手与
以下说法正确的是
投篮时，篮球离手后继续飞向篮筐是因为篮球受推力的作用
手握水杯静止在空中，水杯只受重力、摩擦力这两个力的作用
太阳东升西落，说明无论以什么物体为参照物，它都是运动的
以卵击石，虽然卵破，但卵对石头的力与石头对卵的力大小相等
如图所示用6N的力握住总重为1.5N的水杯静止不动水杯受到的重力与是一对平衡力选填手对杯子的握力或手
如图所示用6N的力握住总重为1.5N的水杯静止不动水杯受到的重力与是一对平衡力选填手对杯子的握力或
如图所示一个底面积为100cm2质量和壁厚均忽略不计的圆柱形溢水杯放在水平地面上内装960g液体液体
手握圆柱形水杯手和水杯都在空中静止杯底所在的平面是水平面如图所示．下列各对力属于平衡力的是
手对水杯的压力和水杯对手的压力
水杯的重力与手对水杯的压力
水杯的重力与手对水杯的摩擦力
水杯对手的摩擦力与手对水杯的摩擦力
冰冰用手握着一个重为10N的水杯静止在空中杯口竖直向上手的握力为20N则水杯受到的摩擦力为N.若在杯
用手竖直握住圆柱形水杯当手和水杯都在空中静止时则下列各力属于平衡力的是
手对水杯的压力与水杯对手的压力
水杯的重力与手对水杯的压力
水杯的重力与手对水杯的摩擦力
水杯对手的静摩擦力与手对水杯的压力
手握圆柱形水杯手和水杯都在空中静止杯底所在的平面是水平面如图4所示下列各对力属于平衡力的是:【】
手对水杯的压力和水杯对手的压力
水杯的重力与手对水杯的压力
水杯的重力与手对水杯的静摩擦力
水杯对手的静摩擦力与手对水杯的静摩擦力
如图17所示一个底面积为100cm2质量和壁厚均忽略不计的圆柱形溢水杯放在水平地面上内装960g液体
冰冰用手握着一个重为10N的水杯静止在空中杯口竖直向上手的握力为20N则水杯受到的摩擦力为N若使手的
如图所示手握住竖直方向的圆柱形水杯．则与水杯重力平衡的力是
手对水杯的压力
手对水杯的摩擦力
水杯对手的摩擦力
水杯对地球的作用力
如图所示小明用手握着一个重为10N的圆柱形水杯静止在空中杯口竖直向上手的握力为20N则水杯受到的摩擦
如图所示用6N的力握住总重为1.5N的水杯静止不动若将手的握力增大到8N手与水杯之间摩擦力的大小将选
博文同学用手握住一个重10N的水杯静止在空中杯口竖直向上手的握力为20N则水杯受到的摩擦力为N.
手握圆柱形水杯手和水杯都在空中静止杯底所在的平面是水平面如图所示．下列各对力属于平衡力的是
手对水杯的压力和水杯对手的压力
水杯的重力与手对水杯的压力
水杯的重力与手对水杯的摩擦力
水杯对手的摩擦力与手对水杯的摩擦力
如图所示小明用手握着一个重为10N的圆柱形水杯静止在空中杯口竖直向上手的握力为20N则水杯受到的摩
冰冰用手握着一个重为10N的水杯静止在空中杯口竖直向上手的握力为20N则水杯受到的摩擦力为_____
冰冰用手握着一个重为10N的水杯静止在空中杯口竖直向上手的握力为20N则水杯受到的摩擦力为N若使手
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