un clavadista cuya masa es 70 kg se lanza desde un trampolín a 10 m de la superficie del agua. Ignorando la resistencia del aire, calcular: a) Su rapidez 5 m arriba de la superficie del agua

Suppose that recording station n is located 200 km north of the epicenter of an earthquake, and recording station s is located 100 km south of the epicenter of the same earthquake. which of the following statements would be true?

When the force acting on an object points at least partially in the direction of the motion the work done is considered to be negative

A5 foot by 5 foot box culvert is buried 6 feet beneath the surface of the ground. a crosssection of this very long culvert (into and out of the page) is illustrated below. assume that the soil in which the culvert is buried has the following properties: jt = 120 pcf, w = 12%, ko = 0.50, ka = 0.33, and kp = 3.00. calculate the total horizontal force per unit length of culvert (fh) felt on one of the vertical faces of the culvert.