16. (II) a) Calcule la fuerza Fm requerida por el músculo "deltoides" para mantener estirado el brazo mostrado en la figura 12-56. La
masa total del brazo es 3.3 kg. b) Calcule la magnitud de la fuer-
za F, ejercida por la articulación del hombro sobre la parte su-
perior del brazo y el ángulo (con la horizontal) en que actúa

Which graph best represents the relationship between the electric current and the rate at which a magnet is turning inside an electric generator?

What are two different ways you could find the value of a? explain these methods.

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.