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A high luminosity star - correct answer Emits more light than a low-luminosity star If a red giant appears the same brightness as a red main sequence star, which one is farther away? - correct answer The red giant The heaviest nuclei of all are formed... - correct answer During a supernova explosion Hydrogen-2 + proton = ____ + energy: - correct answer Helium-3 Which of the following has the smallest radius? - correct answer Neutron star Why does the main sequence part of a star'...

what two properties of a planet affect the gravity we feel on its surface? - correct answer mass and radius two planets have the same radius. if planet A is 5 times more massive than planet B, how does gravity differ on the surfaces of the two planets? - correct answer gravity is 5 times stronger on planet A Say that there were a planet X in our Solar System with a mass 1/4 the mass of Earth and a radius 1/2 the radius of Earth. How will the gravity on its surface compare to the surface gr...

According to Newton's Second Law of motion, if the net force acting on the object increases while the mass of the object remains constant, what happens to the acceleration? Hint: Remember F = m * a - correct answer Acceleration Increases If the earth were moved to half its current distance from the sun, how would the force of gravity by the sun on the earth change? Hint: Recall the form of the equation that you derived, earlier in the game: "gravitational acceleration (g) is proport...

The force of gravity by the Sun keeps the planet in orbit around it, but how do the planets affect the sun? - correct answer They exert an equally strong pull on the sun, causing it move slightly Newton's First Law - correct answer An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force. ex: if the sun suddenly disappeared, the Earth would continue in the direction that it was traveling ...

A good evacuation of a refrigerant circuit to remove non-condensables will help insure: A.) higher condensing temperatures B.) higher suction pressures C.) low suction line pressure drop D.) higher efficiency and capacity - correct answer D.) higher efficiency and capacity A condensing unit should be mounted on a slab that is level to: A.) allow an accumulated water to evenly run out of the cabinet B.) increase airflow through the fin area C.) prevent the unit from tipping over D.) ma...

relative humidity - correct answer A sling psychrometer can measure wet bulb and dry bulb temperature. These measurements are then used to compute? a. Comfort index. b. System temperature differential. c. Relative humidity. d. Sub cooling Sling psychrometers. - correct answer Because they are very accurate, liquid filled thermometers are often used in? a. Electronic wall thermostats. b. Infrared thermometers. c. Superheat and sub cooling measuring d. Sling psychrometers. A conven...

An air conditioning technician is working in the basement of a large B37public building. The technician notices several unsafe and dangerous conditions. Of the following conditions that are noticed, which is the most dangerous and should be reported immediately? A: Gas leaking from a cracked pipe B: An open sewer drain connection C: The basement is unlighted D: None of these are the technician's business - correct answer A: Gas leaking from a cracked pipe A service techni...

What are the five basic components to any schematic? - correct answer 1. A power supply 2. A path for the power 3. A load or component that operates from the power. 4. A switch or component that interrupts the power to the load. 5. A legend or key that explains what the various symbols and abbreviations used in the schematic mean. What are the three basic types of wiring diagrams used in the HVACR trade? - correct answer 1. The ladder diagram 2. The pictorial diagram 3. The installation...

d (very important) - correct answer The ability to utilize all types of communication skills is ____ to the HVACR technician. a. not as important as "hands-on" technical skills b. somewhat important c. unimportant d. very important d (all of the above: clear, complete, concise) - correct answer It is important to be ____ in filling out service orders so that office staff, other technicians, and customers will know what work you completed on the job. a. clear b. complete c. concis...

The nurse is preparing for a home visit to a patient after surgery for a compound fracture. Which specific care does the nurse anticipate for this patient? - correct answer Changing wound dressings A patient experiences a fracture of the lower leg and undergoes a closed reduction and placement of a fiberglass cast. The patient is 65 years old and has a medical 30-year history of diabetes mellitus. Which condition does the nurse recognize as a possible complication for this patient? - correct ...

The client reports that a previously sensitive area of skin no longer responds to temperature changes or painful stimuli. This finding indicates a functional abnormality for which skin layer? A. Stratum corneum B. Adipose layer C. Epidermis D. Dermis - correct answer D. Dermis During skin inspection the nurse observes three lesions on the client's right knee. The lesions are round, have a raised border, and are grouped in a "smiley face" pattern. Which descriptors does the nurse use ...

A patient who has received a maximum dose of nitroglycerin continues to report chest pain. What is the next medication that the nurse should administer to the patient? A. Ticagrelor B. Morphine sulfate C. Docusate D. Esmolol - correct answer B. Morphine Sulfate When planning emergent care for a patient with a suspected myocardial infarction (MI), what should the nurse anticipate administrating? A. Oxygen, nitroglycerin, aspirin, morphine B. Nitroglycerin, lorazepam, oxygen, warfarin C....

Myocardial oxygen consumption increases as which of the following parameters increase? - correct answer Preload, after load, contractility, and heart rate. Which of the following is an example of a female patient experiencing angina? - correct answer "I feel really nauseated and I have terrible pain between my shoulder blades." A patient presents to the hospital with right sided chest pain. The patient's assessment data is the following: A&O x 3, BP 110/60 mm Hg, HR 105, RR 22, SpO2 88%...

Which method is best to use when confirming initial placement of a blindly inserted small-bore NG feeding tube? a. x-ray. b. air insufflation. c. observing patient for coughing. d. pH measurement of gastric aspirate. - correct answer a. x-ray. A patient is receiving peripheral parenteral nutrition. The parenteral nutrition solution is completed before the new solution arrives on the unit. The nurse gives a. 20% intralipids. b. 5% dextrose solution. c. 0.45% normal saline solution. ...

If the patient was instructed to avoid foods that may have a laxative effect, the nurse would advise the patient to avoid which of the following foods? A) Chinese B) Alcohol C) Eggs D) Pasta - correct answer B) Alcohol All the foods listed as such alcohol have a constipating effect Which of the following is a true statement about the effects of medication on bowel illumination? A) Diarrhea commonly occurs with amoxicillin clavulanate use B) Anticoagulants cause a white discoloration ...

A nurse must measure the intake and output of a patient who has a urinary retention catheter. Which equipment is most appropriate to use to measure urine output from a urinary retention catheter accurately? A) Urinal B) Graduated cylinder C) Large syringe D) Urine collection bag - correct answer B) Graduated cylinder A patient's urine is cloudy, is amber, and has an unpleasant odor. Which problem may this information indicate that requires the nurse to make a focused assessment? A) ...

A) Where peristalsis moves food to stomach B) Receives enzymes from the gallbladder and pancreas to further break down chyme and absorbs nutrients C) Secretes hydrochloric acid and pepsin; converts bolus of food to chyme D) Absorbs, protects, secretes, eliminates E) Temporarily stores feces until elimination 1) Esophagus 2) Rectum 3) Small intestine 4) Stomach 5) Colon - correct answer A-1, B-3, C-4, D-5, E-2 If a patient had to have part of their colon (large intestine) remove...

While assessing a patient before administering an enema, the nurse inspects the patient's abdomen for distention. What is the purpose of this nursing intervention? A. It allows the nurse to plan for appropriate teaching measures. B. It helps determine the number and type of enemas to be given. C. It helps determine conditions that contraindicate the use of enemas. D. It provides a baseline for determining the effectiveness of the enema. - correct answer D Before administering an enema, the...

Factors that affect defecation - correct answer - age - diet - fluid intake - physical activity - psychologic - personal habits - pain - anesthesia and surgery - meds - diagnostic tests Normal age related changes that affect GI function - correct answer - older adults lose muscle tone in the perineal floor and anal sphincter - nerve impulses to the anal region slow - decreased peristalsis Fiber purpose and different foods with fiber - correct answer - flushes fats and waste to d...

The nurse caring for a client with small-bowel obstruction would plan to implement which nursing intervention first? a. Administering pain medication b. Obtaining a blood sample for laboratory studies c. Preparing to insert a nasogastric (NG) tube d. Administering I.V. fluids - correct answer Answer D. I.V. infusions containing normal saline solution and potassium should be given first to maintain fluid and electrolyte balance. For the client's comfort and to assist in bowel decompression...