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marina pedraza

marina p.

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The conservation of linear momentum for a control volume is: The term, B: Group of answer choices Is zero if there are no forces acting on the CV None of these are correct Is zero if there is no linear momentum flow into the CV Is zero under steady-state conditions Is zero if there is no linear momentum flow out of the CV

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Argon in a piston-cylinder assembly undergoes a Carnot power cycle. The isothermal expansion and compression processes occur at 700 K and 400 K, respectively. The pressures at the beginning and end of the isothermal expansion are 400 kPa and 300 kPa, respectively. Assuming ideal gas behavior, a.) Determine the heat input to the cycle, in kJ/kg. b.) Determine the net work, in kJ/kg.

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The government raised $12m in taxes and spent $10m on every budget item; consumers spent roughly $30m on goods and services, and the total GDP was $60m. What is the public saving? $22m $18m $20m $2m

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Question 10 What is the result of evaluating the expression len([[1, 2], [3], [[4, 5], [6, 7]]])? 3 4 28 62 Question 9 Given the dictionary d = { 'x': 1, 'y': 2, 'z': 3 }, which statement evaluates to 2? d[1] d[2] d['2'] d['y']

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Question 3 (1 point) Retake question Select the empirical formulas below: Question 3 options: C5H10 C3H10 C3H12 C2H9

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Question 6 (2 points) Which of the following statements describe hereditary cancers. Select all that apply. mutation is linked to tumorigenesis, but not a specific cancer mutation is linked to a specific gene mutation is not hereditary mutation can be inherited and passed on to offspring mutation is linked to a specific cancer

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4. If the President declares a national emergency, then local relief agencies will receive emergency funding. That's because if the President declares such an emergency, then the treasury must authorize payments. And if that happens, local relief agencies will receive emergency funds. Valid or Invalid Name (if applicable) 5. We're going to either Bradenton or Sarasota on Spring Break. We're going to Bradenton, so we're not going to Sarasota. Valid or Invalid Name (if applicable) 6. Whenever Beijing declares a pollution alert, you can't see the skyline. You can see the skyline today, so there must not be a pollution alert. Valid or Invalid Name (if applicable) 7. If it's a cat, then it's an animal. If it's a mammal, then it's an animal. So if it's a cat, then it's a mammal. Valid or Invalid Name (if applicable) 8. You'll have your umbrella today in case it rains. You have your umbrella, so it must be raining. Valid or Invalid Name (if applicable) 9. If you don't eat your meat, you can't have any pudding. No pudding for you! You didn't eat your meat! Valid or Invalid Name (if applicable) 10. If you lose your job, you'll have no money. And once you're broke, then you won't be able to eat. So if you lose your job, you won't be able to eat. Valid or Invalid Name (if applicable)

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Problem 2. A chiral center is an atom bonded to four different groups. Groups are different if they have different compositions or constitutions. A) Each of the following ammonium ions contains a N with four sigma bonds. How many different groups are bonded to each nitrogen atom? HH Me H Me H Me H Me Me + + + + + + B) For each compound below, list the number of chiral centers it contains (dashed box). C) If a compound contains one chiral center, list its groups from highest (1.) to lowest (4.) Cahn-Ingold-Prelog (CIP) priority below the structure. D) In the box below the list, provide the absolute configuration (R) or (S) of each chiral center in the molecule. (If there are zero chiral centers, (R) and (S) have no role). CI CI CI 1. 1. 1. 1. 1. 1. 2. 2. 2. 2. 2. 2. 3. 3. 3. 3. 3. 3. 4. 4. 4. 4. 4. 4. CI

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Determine the x- and y-intercepts on the graph of the equation. Graph the equation. $3x - 8y = -24$ Determine the x-intercept. Select the correct choice below and, if necessary, fill in the answer box to complete your choice.

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-1.1y - 16.9 \ge 4.1(1 - y)

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