Gravitational force of attraction "f" exists between two-point masses a and b when a fixed distance separates them. after mass a is doubled and mass b is quartered, the gravitational attraction between the two masses

Explain vector addition, triangle method and parallelogram method

All the simple machines make work easier to do by changing the or of a force. a. size; type b. work; type c. size; direction d. type; direction

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.