Which statement best explains how platforms offering free services (e.g., Facebook, YouTube) generate revenue?

PROBLEM 1. (20 pts) 1a. (6 pts) Determine the moment of inertia with respect to x axis. You may use the formulas below: 1b. (14 pts) The loading of the beam is shown below i.(4 pts) Draw a free body diagram of the beam (replace the distributed load with a single concentrated load), then determine the reactions at support A and B. ii.(8 pts) Draw the shear and bending-moment diagrams for the beam. Explain how the changes occurs due to the external force or moment in the two diagrams (For example: an upward force (5 lb) moves the V diagram up by 5 lb). No credit will be received if you do not explain iii.(2 pts) Determine the maximum absolute values of the shear and bending moment. At what points or what sections do they occur?  

PROBLEM 2. (20 pts) The Boom AED 4 m which is held by a ball-and socket joint at D and by two cables AB and AC. The load at point A is in the negative z direction and load at point E is in the positive y direction. a.(4 pts) Draw a free-body diagram for the boom AED. (Don’t forget the reactions)   b.(4 pts) Express the tension in each cable in terms of a unit vector and its unknown magnitude. (i.e.

For the following complex number: state the complex conjugate and multiply the complex number by its complex conjugate: (-4+2i){“version”:”1.1″,”math”:”(-4+2i)”}

Find the inverse function for the following function: f(x)=2x+4{“version”:”1.1″,”math”:”f(x)=2x+4″}

Solve the following system of equations (for x{“version”:”1.1″,”math”:”x”} and y{“version”:”1.1″,”math”:”y”}). 2x+3y=8{“version”:”1.1″,”math”:”2x+3y=8″} 3x+y=-2{“version”:”1.1″,”math”:”3x+y=-2″}

Solve the following absolute value equation: 3x-1=8{“version”:”1.1″,”math”:”3x-1=8″}

Solve the following quadratic equation using the Square Root method: x2+5=-11{“version”:”1.1″,”math”:”x2+5=-11″}

Which muscle group is MOST important for eccentric control of trunk flexion from standing?

Which movement occurs primarily at the radiocarpal joint?