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Two vectors A⇀{“version”:”1.1″,”math”:”A⇀”} and B⇀{“version”:”1.1″,”math”:”B⇀”}  have precisely equal magnitudes. For the magnitude of A⇀ + B⇀{“version”:”1.1″,”math”:”A⇀ + B⇀”} to be 100 times larger than the magnitude of A⇀ – B⇀{“version”:”1.1″,”math”:”A⇀ - B⇀”}, what must be the angle between them?  Show your work and answer in the scratch paper. (15 points)

If the average velocity of an object is zero in some time interval, what can you say about the object’s displacement for that interval? Explain. Record your answer with your reasoning to your scratch paper. Make sure to submit it to Gradescope at the end of the exam.  (10 points) 

A 2-year-old child who has sickle cell anemia (SCA) comes to the clinic with a cough and a fever of 101.5°C. The child currently takes penicillin V prophylaxis 125 mg orally twice daily. What will the primary care pediatric nurse practitioner do?

A 2-year-old child has an acute diarrheal illness. The child is afebrile and, with oral rehydration measures, has remained well hydrated. The parent asks what can be done to help shorten the course of this illness. What will the primary care pediatric nurse practitioner recommend?

Which of the following is a left to right shunting defect?

An infant with known congenital heart disease presents with weight loss, tachypnea and hepatomegaly. The infant is currently receiving breastmilk via bottle and is eating well. What intervention should the nurse practitioner recommend?

A 15-year-old female reports fainting at school in class on two occasions. The adolescent’s orthostatic blood pressures are normal. The primary care pediatric nurse practitioner suspects a cardiac cause for these episodes and will order which tests before referring her to a pediatric cardiologist?

The stars in the Milky Way Galaxy

What is the classification for a spiral galaxy with a small nuclear region and loosely wound arms?

In cosmology, what is the “inflationary period”?