Scribner studied how people in different jobs make decisions and solve problems. She describes her research process: “We watched workers at 3 a.m. as they went about their usual routines, recorded how they did their jobs, and photographed tools they used to process information.”

The structural member shown is pin connected at A and rests against a smooth support at B. The magnitude of the normal reactive force at B is 200 N. What is the magnitude of the vertical component of the reactive force at the pin A?

Liam reads an article claiming that drinking green tea improves memory. He personally enjoys green tea and feels like it helps him focus, but he wants to approach this claim with a scientific attitude.  Which of the following actions shows that Liam is thinking scientifically? 

Which of the following statements best illustrates how the four principles of scientific research are applied in a typical journal article? 

How are scientific theories such as the Theory of Social Facilitation formed? 

You are seeing a 4-year-old child who presents with a 103°F fever, sore throat, and inspiratory stridor; upon entering the room, you observe that the child is leaned forward in their chair, appears extremely anxious, and sounds muffled when responding to your questions. The child’s mother reports that the child has never received their H. influenza type B (HiB) vaccine. You suspect that the child has acute epiglottitis. Which of the following should you NOT do while assessing the patient?  

Which are the early (prodromal) clinical manifestations of hepatitis? (Select all that apply.)

A patient is diagnosed with a pneumothorax and asks the healthcare professional to explain this condition. What statement by the professional is most accurate?

Which of the following is considered the body’s second line of defense against injury or infection?

The student questions how tuberculosis (TB) can remain dormant in some people, the best explanation is: