Una avioneta para aplicar agroquímicos debe alcanzar una velocidad de 28 m/s para poder despegar. Si el motor provee una aceleración efectiva de despegue de 1.5 m/s2, determine: La longitud efectiva mínima que debe tener la pista para que la avioneta pueda despegar, si en la carrera de despegue recorre la pista partiendo del reposo, desde un extremo de la misma.

Which describes an image that can be produced by a concave lens? the image is real and smaller than the object. the image is virtual and larger than the object. the image is virtual and smaller than the object. the image is real and larger than the object.

The plum pudding model of the atom state that ?

Suppose water is leaking from a tank through a circular hole of area ah at its bottom. when water leaks through a hole, friction and contraction of the stream near the hole reduce the volume of water leaving the tank per second to cah 2gh , where c (0 < c < 1) is an empirical constant. a tank in the form of a right-circular cone standing on end, vertex down, is leaking water through a circular hole in its bottom. (assume the removed apex of the cone is of negligible height and volume.) (a) suppose the tank is 20 feet high and has radius 8 feet and the circular hole has radius 2 inches. the differential equation governing the height h in feet of water leaking from a tank after t seconds is dh dt = − 5 6h3/2 . if the height of the water is initially 8 feet, how long will it take the tank to empty? (round your answer to two decimal places.)