What process in the core of the Sun releases energy that allows the Sun to shine?

What is an electron made of?

A patient with cardiac tamponade may present with Beck’s triad, which is hypotension, muffled heart tones, and jugular venous distension. Which of these hemodynamic changes reflect cardiac tamponade?

Consider Oxygen-16 and Oxygen-17. They are different of the same . They have the same number of but different numbers of . They have the same atomic but different atomic .

Which of the following would not be considered one of the “classic triad” of findings associated with meningitis? 

A 63-year-old homeless patient with known history of intravenous (IV) drug use is being seen by the AGACNP in the clinic with complaints of chest pain that worsens on inspiration, shortness of breath, and temperature of 101.2oF. On exam, you are able to appreciate a III/IV diastolic murmur LUSB. Which diagnosis is most likely correct?

A 28-year-old insulin-requiring woman is found in her apartment by her husband. She is stuporous and cannot provide any history. EMS is called and takes the patient to the emergency center, and a diagnosis of severe DKA is made. Her blood pressure is 80/40 mm Hg and heart rate 140 beats per minute. The glucose level is 950 mg/dL, potassium level 6 mEq/L, HCO3 4 mEq/L.  Which of the following is most appropriate for treatment?

You are evaluating a 65-year-old female with chronic low back pain who presents to the clinic for acute exacerbation of low back pain that occurred after lifting a heavy object. Which statement is not a red flag symptom of acute low back pain? 

Landlord owns several properties in the city. One of them (called “the Property” in the lease) is leased to a Kentucky Fried Chicken location. The lease with KFC provides: Landlord shall not during the Lease Term operate or permit to be operated on any real estate that Landlord owns, manages or otherwise controls within one mile of the Property any fast food restaurant, or restaurant facility whose principal food product is chicken on the bone, boneless chicken or chicken sandwiches. Landlord signs a lease with a Burger King franchisee to open a Burger King on another piece of property owned by Landlord, which is only a half-mile from the KFC. KFC objects on the grounds that BK is a “fast food restaurant” and thus is barred. Landlord retorts that BK’s “principal food product” is not “chicken on the bone, boneless chicken or chicken sandwiches,” and so it is not barred. If the matter goes to litigation, which is the most correct outcome using ordinary interpretation guidelines?    

Same facts as the previous two questions, except this time assume that the parties have expressly agreed to all terms necessary for an enforceable contract, including the shape and colors of the balloons. Two days after Patty signed the confirmatory memorandum, Bart called and told Patty, “I have a problem. My polymer supplier went on strike, so the price of my materials has gone up considerably. I’m going to have to charge you nine cents per balloon instead of five cents in order to break even. Please try to work with me on this.” Which one of the following statements about Patty’s situation at this point is most likely TRUE?