Blog

Which of the following is NOT correct?  

How many significant figures should the answer to the following calculation have? (1.4312 – 1.1 x 10-2) ÷ (1.0712 x 10-4)

It takes light one second to travel 2.998 × 108 m. How many kilometers does light travel in a day?

The following measurements were made by a group of students using the same balance and a 15.00 gram weight. Trial Mass (g) 1 17.96 2 12.01 3 13.98 4 16.97 The data would be considered:

Which of the following does NOT have 5 and 6 significant figures, respectively:  

A. Ouvir um parágrafo: Uma mensagem de telefone. Listen to a voice message Marcos sent César. After listening to it, select if the sentences below are Verdadeira, Falsa or Não se menciona (Not mentioned). (1 pts. each; 6 pts. total) 1. A prima do Marcos chega dos Estados Unidos na segunda-feira. [1] 2. O Marcos e a irmã vão cozinhar. [2] 3. O pai de Marcos vai comprar as bebidas.[3] 4. A festa vai ser no sábado, dia 14. [4] 5. Todos precisam chegar cedo porque a festa é uma surpresa. [5] 6. A casa do Marcos é em frente do Cinema Central. [6]    

 The following is a NOT a symptom of deficiency in vitamin A:              1.        Night-blindness2.        Xerophthalmia3.        Hyperkeratosis4.        Keratomalacia5.        Exophthalmos

The following combinations of drug and their mechanism of action is correct, except:                                                                                                      1.        Salbutamol                         -stimulation of β2 receptor causing bronchodilation2.        Sodium cromoglicate          – mast cell stabilization3.        Zafirlukast                             – leukotriene modulators4.        Theophylline    -non-selective β2receptor stimulation causing bronchodilation 5.        Xylometazoline -Vasoconstriction of the mucosal blood vessels reducing oedema of the nasal mucosa

The following can be used in the treatment of arrhythmias:                   1.        Aspirin2.        Sotalol3.        Methyldopa4.        Acetazolamide5.        Mannitol

The following drug is most effective in treating triglyceride-related disorders:                                                                                                                   1.        Fluvastatin2.        Gemfibrozil3.        Cholestyramine 4.        Diltiazem5.        Eicosapentaenoic acid