The balloon rocket is held in place by a force F. The nozzle has a cross section area of 0.02 space m squared and the air density is 1.2 space k g divided by m cubed, the exit velocity of the air at the nozzle is 10 space m divided by s, find out the value of the force F in unit of Newton.

Why can blue light and yellow light combine to produce white light? question 17 options: they are both primary colors of light. they absorb each other's wavelengths. because blue, yellow, and white are primary colors. they are complementary colors of light.

As seen in a us weather map, the h (or high) and l (or low) symbols indicate regions where surface air pressures are high or low, respectively, compared to surrounding areas. an h is plotted where the air pressure is highest and an l is plotted where the air pressure is lowest. proceeding outward and away from the center of a high pressure system, the air pressure "

Why do metals "give up" their valence electrons?