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.

Asubmarine has a "crush depth" (that is, the depth at which water pressure will crush the submarine) of 250 m. what is the approximate pressure (water plus atmospheric) at this depth? (recall that the density of seawater is 1025 kg/m3, g = 9.81 m/s2, and 1 kg/(ms2) = 1 pa = 9.8692 10-6 atm.) a. 34.8 atm b. 24.8 atm c. 25.8 atm d. 7.8 atm

The most important difference between a wedge and an inclined plane is a. their size b. their shape c. how they are used d. what they are made of

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