How far from the lens must the film in a camera be, if the lens has a 32.0 mm focal length and is being used to photograph a flower 80.0 cm away?

Simple one

Engineering question    simple paragraph please

Statically Equivalent Loads. A highly idealized biomechanical model of the human body is shown below, sectioned in a horizontal plane through the lower back showing the major muscle forces in gray, with the back of the body in the positive y-direction. The same four muscles act on the left and right sides of the trunk and there is symmetry with respect to the y – z plane. On each side, the tensile (pulling) forces acting in each of the four different muscles are: FR = 150 N, Fo = 150 N, F1 = 230 N, and Fr = 320 N, and all are acting in the z-direction. Assume that this system of muscle forces is statically equivalent to a single resultant force vector Fres and a single resultant moment vector Mres, referenced to point 0. a- For this cartesian coordinate system, calculate the three components (x, y, and z) of Mres b- Which components (x, y, or z) of the resultant muscle moment vector would enable you to bend in the forward-backward direction, bend to one side, and twist, respectively?…