A steady wind of 50m * s ^ - 1 blows against a rigid wall, which is in a plane perpendicular to the Wind direction. Estimate the pressure exerted by the wind on the wall. Density of air is 1.25 kg m ^ - 3 . State any assumption you made in your calculations.

Aplane takes off from an airport and flies to town a, located d1 = 215 km from the airport in the direction 20.0° north of east. the plane then flies to town b, located d2 = 230 km at 30.0° west of north from town a. use graphical methods to determine the distance and direction from town b to the airport. (enter the distance in km and the direction in degrees south of west.)

Ais not a compound machine. a. bolt b. shovel c. handcart (dolly) d. see-saw (teeter totter)

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