Question 7 (10 Points) Two joggers are racing toward the finish line.  Jogger A passes Jogger B with 150 meters to go in the race running at a speed of 6 m/s.  At that same instant, Jogger B is traveling at a speed of 3 m/s.  What constant acceleration is required by Jogger B in order to win the race in a photo finish?

Newton’s law of universal gravitation is believed to be applicable

What is the mass of 25 cm3 of pure water?

Displacement divided by time gives

Wave period is the reciprocal of 

Why do we talk about tolerance as a part of immunology?  Why is it an important concept?

Using NK receptors, natural killer cells are known to recognize…

Case 2 (questions 14-16) Suppose that a team of researchers is interested in studying the association between sun exposure and skin cancer among Floridan adults. Suppose that they developed the following research question: Are Floridan adults aged 30 who do not wear sunscreen on a regular basis at a higher risk of developing skin cancer by age 40 than Floridian adults aged 30 who do wear sunscreen on a regular basis? Suppose a team of researchers performed a case-control study to study the association between leukemia and formaldehyde exposure. The researchers calculated an exposure odds ratio of 1.74. Please provide an interpretation of this exposure odds ratio (max. 4 points). Note: include the effect estimate of 1.74 in your interpretation.

Which measure of disease occurrence can be estimated in a cross-sectional study?

Suppose we conducted a prospective cohort study on the association between smoking and stroke in American adults aged 65. Suppose that the 10-year risk of stroke in smokers is 0.08 and that the 10-year risk of stroke in individuals who do not smoke is 0.04. This means that the estimate of the risk ratio is 2.00 (0.08/0.04). What is the interpretation of this estimate? What is the interpretation of this estimate?