An airplane of mass 5000 kg flies in a straight line at steady speed of 70 m/s. wind resistance pushes backwards on the airplane with a force of 2000 newtons. is the forward force that the engine exerts on the airplane greater than, less than, or equal to 2000 n? explain.

Is a volume of space that is empty of matter.

Ivana walks 2km north then turns around and walks 3km south

On his honeymoon, james joule attempted to explore the relationships between various forms of energy by measuring the rise of temperature of water which had fallen down a waterfall on mount blanc. what maximum temperature rise would one expect for a waterfall with a vertical drop of 20 m? the specific heat of water is 4186 j/kg ∙ k. a)0.064 c° b)0.053 c° c)0.071 c° d)0.047 c°