Rafael

Popular questions and responses by Rafael
  1. Math (Trig)

    A ship leaves port at noon and has a bearing of S 25° W. The ship sails at 15 knots. How many nautical miles south and how many nautical miles west does the ship travel by 6:00 P.M.? (Round your answers to two decimal places.) Miles South? Miles West?

    asked on October 21, 2015
  2. AP Chemistry i need help!

    A 21.5997 g sample of impure magnesium carbonate was heated to complete decomposition according to the equation MgCO3(s) → MgO(s) + CO2(g). After the reaction was complete, the solid residue (consisting of MgO and the original impurities) had a mass of

    asked on September 4, 2012
  3. Math

    A frozen yogurt shop offers scoops in cake cones, waffle cones, or cups. You can get vanilla, chocolate, strawberry, pistachio, or coffee flavored frozen yogurt. If you order a single scoop, how many outcomes are in the sample space? Is the answer 3? If

    asked on April 29, 2016
  4. ethic and social responsibility

    In euthanasia, ___________________ (Points : 1) patients take a lethal dose of medication on their own. the doctor acts in some manner to bring about the death of the patient. the doctor is present when a family member administers the lethal dose. all of

    asked on March 16, 2015
  5. physics

    you and your friend are riding on a helicopter that is traveling west at a speed of 10 meters per second. You throw a baseball with a velocity of 2 meters per second north, straight across the inside of the helicopter to your friend on the other side. What

    asked on February 23, 2014
  6. AP Chemistry

    For the reaction ? C6H6 + ? O2 ↽⇀? CO2 + ? H2O a maximum of ? moles of CO2 could be formed from 6.38 mol of C6H6 and 6.03 mol of O2. Answer in units of mol

    asked on September 4, 2012
  7. AP Chemistry

    For the reaction 3 FeCl2 + 2 Na3PO4 → Fe3(PO4)2 + 6 NaCl , what is the maximum amount of Fe3(PO4)2 which could be formed from 11.26 g of FeCl2 and 13.34 g of Na3PO4?

    asked on September 3, 2012
  8. Physics

    Barky the physics dog is able to leap at a speed of 200 m/s at an angle of 35 degrees, a) What is the maximum horizontal distance Barky can leap? b) If Barky wanted to double his horizontal distance without changing his velocity or angle, from what height

    asked on September 9, 2018
  9. math

    (sinx)^(1/2)=cosx x is between 0 and 90 What is sinx

    asked on March 23, 2017
  10. Chemistry

    What's the pH of 0.15M C3H6O3?

    asked on February 7, 2017
  11. ethic and social responsibility

    Pluripotent stem cells are__________________ (Points : 1) those cells that have the potential to be used for multiple types of tissue. those cells that have potential to be used only for one type of tissue. those cells that are generally taken from adults.

    asked on March 16, 2015
  12. ethic and social responsibility

    The relativist would agree with which statement about stem cell research? (Points : 1) It should not be practiced. It should be practiced in places where people believe that life begins when an egg is fertilized. It should not be practiced in places where

    asked on March 16, 2015
  13. ethic and social responsibility

    Pluripotent stem cells are__________________ (Points : 1) those cells that have the potential to be used for multiple types of tissue. those cells that have potential to be used only for one type of tissue. those cells that are generally taken from adults.

    asked on March 16, 2015
  14. ethic and social responsibility

    A utilitarian might use which statement in an argument that supports the use of embryos in stem cell research? (Points : 1) The harm caused to the embryos outweighs the good that comes from the research. There would be greater overall happiness from the

    asked on March 16, 2015
  15. ethic and social responsibility

    With which of these statements would Hippocrates agree? (Points : 1) all the above Doctors have a duty to care for others’ children as if they were their own. A doctor has a duty to teach people the art of medicine if they are interested. A doctor ought

    asked on March 16, 2015
  16. ethic and social responsib

    People who work in the field of mental health__________a________ (Points : 1) may reveal information in cases where the patient intends bodily harm to another person. may never reveal confidential information. ought to never reveal any information. may not

    asked on March 16, 2015
  17. AP Chemistry

    For the reaction ? C6H6 + ? O2 ↽⇀? CO2 + ? H2O a maximum of ? moles of CO2 could be formed from 6.38 mol of C6H6 and 6.03 mol of O2. Answer in units of mol

    asked on September 4, 2012
  18. AP Chemistry

    The reaction of 8.7 grams of fluorine with excess chlorine produced 3.9 grams of ClF3. What percent yield of ClF3 was obtained? Answer in units of %

    asked on September 4, 2012
  19. AP Chemistry

    The reaction of 8.7 grams of fluorine with excess chlorine produced 3.9 grams of ClF3. What percent yield of ClF3 was obtained? Answer in units of %

    asked on September 3, 2012
  20. AP Chemistry

    A 7.6 g sample of iron ore is treated as follows. The iron in the sample is all converted by a series of chemical reactions to Fe2O3. The mass of Fe2O3 is measured to be 12.9 g. What was the mass of iron in the sample of ore? Answer in units of g

    asked on September 3, 2012
  21. Chemistry Homework

    If 0.8000 g of a mineral yields 0.2400 g of NaCl + KCl, and this mixture contains 58.00% of Cl, what is the percentage of Na2O and K2O in the mineral?

    asked on January 16, 2012
  22. math

    Mary's age is 2/3 that of peter's. two years ago mary's age was 1/2 of what peter's age will be in 5 years tim. how old is peter now?

    asked on November 15, 2011
  23. Physicss

    a car brakes to a halt in 5 seconds. The position of the car versus time is given by: x = 10t - t^2 a) What is the average speed between 0 s. and 4 s.? Thank you

    asked on September 20, 2011
  24. Physics

    a car brakes to a halt in 5 seconds. The position of the car versus time is given by: x = 10t - t^2 a) What is the average speed between 0 s. and 4 s.?

    asked on September 20, 2011
  25. Fashion

    (x to the second power-3x+2)and (5x to the second power-3x-8)= Show all work

    asked on January 8, 2011
  26. math

    write a expression for each model

    asked on October 20, 2010
  27. chemistry

    Which of the following minor products could not arise from the halogenation reaction below? isobutane + Br2 ----> 1-bromo-2-methyl propane + HBr + minor products a)2,5 dimethylhexane b)2 bromo-2 methyl propane c)1,3 dibromo, 2 methyl propane d) 2,4

    asked on January 24, 2010
  28. chemistry

    Which of the following minor products could not arise from the halogenation reaction below? a)2,5 dimethylhexane b)2 bromo-2 methyl propane c)1,3 dibromo, 2 methyl propane d) 2,4 dimethylhexane e)2,2,5 trimethyl pentane plz can someone help me...i kno its

    asked on January 24, 2010
  29. accounting

    what is the function of the securites and exchange commission

    asked on December 29, 2009
  30. accounting

    accounting what groups consistently offer opinions about proposed fasb statement

    asked on December 29, 2009
  31. cci

    It is stand accounting procedures, or GAAP, to make an adjusting entry to remove the current year’s principle

    asked on December 28, 2009
  32. cci

    It is stand accounting procedures, or GAAP, to make an adjusting entry to remove the current year’s principle from the long-term liabilities. This entry reduces the long-term liabilities and increases the current liabilities. You are the bookkeeper for

    asked on December 26, 2009
  33. cci

    Malissa is an accountant. Sometimes printouts of financial statements have errors and are not usable. Malissa doesn't like to waste anything, so she takes the unusable financial statements to her son's day care center to use for drawing paper. Explain why

    asked on December 26, 2009
  34. world history

    what set the stage for vietnamese resistance againts the french?

    asked on June 12, 2009
  35. Chemistry

    How do I determine the formula of a conjugate acid. Ex. question: Give the formula of the conjugate acid of each of the following. (a) NH2- (b) HPO42- (c) NO3- Add a H^+ to each of the bases listed. The conjugate acid of the acetate ion, CH3COO^- is

    asked on April 2, 2007
  36. Chemistry

    A buffer containing 1.2169 M of acid, HA, and 0.1431 M of its conjugate base, A-, has a pH of 3.96. What is the pH after 0.0017 mol NaOH is added to 0.5000 L of this solution? I can't figure this out for the life of me, i'm sure its just some simple

    asked on April 2, 2007
  1. math

    Be h heav( rdtftlfyugltf/ g.hvh veggies gugugu Jeimi ieiei woodwork eoowow ieoeowo isotope iwowow Jekyll isowo

    posted on November 24, 2019
  2. Physics

    I'm literally crying rn :(

    posted on October 21, 2019
  3. math

    hirap ako sa times sa even intigers

    posted on July 23, 2019
  4. Humanities

    To have a clear view on what does it mean as well as a concrete answer.

    posted on November 13, 2017
  5. Chemistry

    The normality is twice as the molarity because in this case normality is used in reference to tonicity (osmotic pressure) and NaCl splits in two ions doubling the number of osmotically active particles. It would be 2 x 0.145 x 0.93 = 0.270 0.93 is a

    posted on November 16, 2016
  6. Government

    Independent

    posted on October 5, 2016
  7. pharmacy

    The value of your house is increasing by 4 per year. If it is worth $250,000 today, what will it be worth in three years?

    posted on December 1, 2015
  8. ethic and social responsibility

    those cells that have the potential to be used for multiple types of tissue.

    posted on March 16, 2015
  9. ethic and social responsibility

    none of the above

    posted on March 16, 2015
  10. ethic and social responsibility

    none of the above

    posted on March 16, 2015
  11. ethic and social responsibility

    The social context and laws determine where and when this research is acceptable.

    posted on March 16, 2015
  12. ethic and social responsibility

    the doctor acts in some manner to bring about the death of the patient.

    posted on March 16, 2015
  13. ethic and social responsibility

    the doctor acts in some manner to bring about the death of the patient.

    posted on March 16, 2015
  14. ethic and social responsibility

    There would be greater overall happiness from the cures that emerge out of the research than the harm done to the embryos.

    posted on March 16, 2015
  15. ethic and social responsibility

    The harm caused to the embryos outweighs the good that comes from the research.

    posted on March 16, 2015
  16. ethic and social responsibility

    those cells that are embryonic stem cells.

    posted on March 16, 2015
  17. ethic and social responsibility

    None of the above

    posted on March 16, 2015
  18. ethic and social responsibility

    all of the above

    posted on March 16, 2015
  19. ethic and social responsib

    may reveal information in cases where the patient intends bodily harm to another person.

    posted on March 16, 2015
  20. Math

    You are from CMU, huh ;)

    posted on June 1, 2014
  21. AP Chem

    how is the 51 gram sample integrated into the equation then? or is it not used at all in this case?

    posted on September 5, 2012
  22. Math

    why

    posted on September 20, 2011
  23. Imagery

    Shakira

    posted on March 12, 2010
  24. Physics

    There is an error in the form for question (d) vf = sqrt [2*(K.E)/M]

    posted on February 21, 2010
  25. chemistry

    this is the reaction...sorry about that :) isobutane + Br2 ----> 1-bromo-2-methyl propane + HBr + minor products

    posted on January 24, 2010
  26. us history

    yea

    posted on November 13, 2009
  27. Philosophy

    Philosophy of religion is the philosophical examination of the central themes and concepts involved in religious traditions. It involves all the main areas of philosophy: metaphysics, epistemology, logic, ethics and value theory, the philosophy of

    posted on July 8, 2008