What gauge pressure is required in the city water mains for a stream from a fire hose connected to the mains to reach a vertical height of 17.0 m ? (Assume that the mains have a much larger diameter than the fire hose.)

Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 11.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.80 m/s; (b) he is then lifted at the constant speed of 4.80 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 78.0 kg rescue by the force lifting him during each stage

Aregion of space in which a measurable gravitational force is indicated by the force exerted on a test mass is called

Several mountains together form a mountain . a few of these combined form a mountain system. several systems combined form a mountain , which can stretch thousands of miles in length.