The following figure shows a dynamometer placed on rope AC, the same mark 680 N. Calculate the weight of the body Q and the tension of the rope AB. (151.9 N; 101.6 N)

State one advantage and one disadvantage of using a plane mirrior as a driving mirrior

The plum pudding model of the atom states that ?

Which statements describe the movement of ocean currents around the globe? check all that apply. strong winds force warm water to sink to the ocean floor. the coriolis effect causes warm and cold water to mix. cool dense water sinks to the ocean floor. warm water replaces cool surface water. wind blowing parallel to the shore causes upwelling of cool water.