The two vertical steel rods [e = 200gpa] that support rigid bar abcd are initially free of stress. rod (1) has an area of a1 = 450mm2 and a length of l1 = 2.2m. rod (2) has an area of a2 = 325mm2 and a length of l2 = 1.6m. the dimensions are: a = 3.0m, b = 1.0m, and c = 1.25m. after a load of p = 80kn is applied to the rigid bar at d, determine: (a) the normal stresses in rods (1) and (2). (b) the deflection of the rigid bar at d.

Acube has a volume of 2011 cubic inches. what is the angle measure between a side of a cube and its interior diagonal?

Boxing gloves are padded to lessen the force of a blow. (a) calculate the force exerted by a boxing glove on an opponent’s face, if the glove and face compress 7.50 cm during a blow in which the 7.00-kg arm and glove are brought to rest from an initial speed of 10.0 m/s. (b) calculate the force exerted by an identical blow in the gory old days when no gloves were used and the knuckles and face would compress only 2.00 cm. (c) discuss the magnitude of the force with glove on. does it seem high enough to cause damage even though it is lower than the force with no glove?

Why is the use of carbon-14 limited