How will the greater trochanter be demonstrated on an accurately positioned lateral projection of the proximal femur?

What positioning error, if any, occurred on this image of an AP humerus?

How should the central ray be directed for an AP oblique with internal rotation of the knee?

What positioning error, if any, has occurred on this lateral Lauenstein hip?

What positioning error occurred on an AP pelvis if the lesser trochanters are completely superimposed by the proximal femurs?

What positioning error has occurred on an AP projection of the knee if the tibia superimposes less than half of the fibular head?

Define the term kinetic energy in 1-2 sentences.

What positioning error has occurred on an AP shoulder if the medial end of the clavicle is superimposing the vertebral column?

Why is the upright position preferred when imaging the shoulder?

Define the term mass number in 1-2 sentences.