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For the following truss problems, the support reactions are: Ay = 24.95 kN

Rod BEA is supported by cables BC and BD and a ball-and-socket at A. Determine the magnitude of the force reaction at A in the z-direction.

What happens when a new or revised theory provides a better connection to the real world compared to an older theory?  

Which of the following is NOT a goal of science? 

Determine the magnitude of the normal reaction at the roller B if F = 750 lb.

According to the principle of falsifiability, why must scientific ideas be specific and testable?  

Which best describes a correlational study? 

Please use the link to answer the questions. Taylor CA, Patel K, Pham H, et al. COVID-19–Associated Hospitalizations Among U.S. Adults Aged ≥18 Years — COVID-NET, 12 States, October 2023–April 2024. MMWR Morb Mortal Wkly Rep 2024;73:869–875. DOI: http://dx.doi.org/10.15585/mmwr.mm7339a2 1. Based on same period, cumulative, age-adjusted COVID-19-associated hospitalization rates, what can be said about the role of race and/or ethnicity and the likelihood of hospitalization? (1 point, 100 word minimum) 2. In addition to age, list 3 risk factors for COVID-19 hospitalization. (0.5 points) 3. What is the relationship between vaccination and racial and ethic disparities for COVID-19-associated hospitalization?  (1 point, 100 word minimum) 4. List and explain 2 limitations of this study. (0.5 points) 5. Refer to Figure 2 at the end of the article regarding COVID-19-associated hospitalizations and racial & ethnic groups.  (1 point total)     5a.  Which group has the overall highest rates of COVID-19-associated hospitalizations over time?     5b. Which two groups have nearly identical trends and rates?       5c. Which group has the lowest rate of COVID-19-associated hospitalizations over time?     5d.  Which group had an increase in rate that was disproportionate to the trends for the other groups?

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? 

Scientists embrace scientific attitude to rise above the human problem. Which of the following is a scientific attitude?