Dulce

Most popular questions and responses by Dulce
  1. physic

    Find the force a 67.5 kg man would experience while standing in the surface of each of the following planets PLANET 1. EARTH 2. MARS 3. PLUTO Mass for earth 5.98 x 10^24 kg for mars 6.34 x 10 ^23 kg for pluto 5 x 10^23 kg distance distance for planet 6.337

    asked on July 13, 2014
  2. PHYSICS

    an ant walks 22 cm in a northerly directions turns and walks southeasterly (45 degree East Of South) a distance of 47 cm what is a resultant displacement?

    asked on July 6, 2014
  3. English/ Help

    In the race for student body government, both students were coequal. Their speeches each pointed to their records of service and academic excellence. Which of the following options is the meaning of "coequal" as used in the sentence above? A. The students

    asked on August 4, 2014
  4. Physics

    A train whose speed is 100km/hr rounds a curve whose radius of curvature is 150m what is the acceleration?

    asked on September 29, 2014
  5. Science

    . A researcher wants to develop a new pharmaceutical compound to treat pain. Which of the following strategies will likely be the most effective process? A. Test extracts from newly discovered plants for pain-killing substances. B. Read anthropological

    asked on July 28, 2014
  6. Science

    A student is assigned the task of measuring the mass of one tennis ball using a scale for which the zero adjustment on the balance is not working. The student is given three balls and the can in which they were packaged. Which of the following strategies

    asked on July 14, 2014
  7. Science

    Fitness is a result of which of the following factors? A. Overproduction B. Adaptation C. Variability D. Homology I think it is B

    asked on July 17, 2014
  8. Science

    A researcher wants to develop a new pharmaceutical compound to treat pain. Which of the following strategies will likely be the most effective process? A. Test extracts from newly discovered plants for pain-killing substances. B. Read anthropological

    asked on July 13, 2014
  9. PHYSICS

    a motorcycle is driven 50 km west then 30 km south and 25 km 30 degree west of south show the vector diagram find the total displacement of motorcycle

    asked on July 6, 2014
  10. Science

    A test is performed to see if applying fertilizer to rose bushes increases the number of flowers on bushes. Which of the following best relates to the hypothesis for this experiment? A. Watering all of the rose bushes the same amount throughout the

    asked on July 14, 2014
  11. Science

    An experienced mountaineer decides to climb Mount Everest using the same route in the same season and with similar materials and equipment used by a fatal1924 expedition. The scientific purpose of such a climb would be to A. show that modern technology

    asked on July 13, 2014
  12. Science

    In pea plants, the allele for tall (T) is dominant to the allele for short (t). Which of the following is the percent of offspring that will be tall if a heterozygous plant (Tt) is crossed with a homozygous tall plant? A. 100% B. 75% c. 50% D. 25% B?

    asked on July 28, 2014
  13. Science

    . A researcher wants to develop a new pharmaceutical compound to treat pain. Which of the following strategies will likely be the most effective process? A. Test extracts from newly discovered plants for pain-killing substances. B. Read anthropological

    asked on July 17, 2014
  14. Biology

    . Which of the following parts of the circulatory system carries oxygenated blood? A An artery moving blood from the heart to the lungs B. A vein moving blood to the heart from the body C. An artery moving blood from the heart to a muscle cell D. A venule

    asked on July 14, 2014
  15. Science

    A cylinder and an airtight piston are used in the following experiment. The piston is pushed up and down in the cylinder and the resulting pressure of the air inside the cylinder is measured with a pressure gauge. The results of the experiment are recorded

    asked on July 13, 2014
  16. Science

    A researcher collects high-resolution photographs of the Earth taken from outer space at annual intervals for the last decade. This data would be most useful to analyze which of the following? A. Human movement during crises B. Migration patterns of large

    asked on July 15, 2014
  17. chemistry

    . A student wants to design an experiment to demonstrate the effects of acid rain on plant life. Which of the following substances should be combined with water to best simulate acid rain? A. Vinegar B. Table salt C. Baking soda D. Ammonia

    asked on July 13, 2014
  18. Science

    A researcher is studying the rate of chemical reactions within living blood cells. When placing the cells into a petri dish with a pH of 2.5, the researcher should predict that the rate of the reactions will A. increase immediately. B. decrease

    asked on July 30, 2014
  19. Science

    Fitness is a result of which of the following factors? A. Overproduction B. Adaptation C. Variability D. Homology I think it is B. not sure

    asked on July 15, 2014
  20. Science

    . A population shows the following annual data: 3% emigration 2% immigration 2% births 1% deaths Which of the following is the change in population at the end of the year? A. 3% decrease B. 2% increase C. 1% decrease D. No change I think it is not change.

    asked on July 13, 2014
  21. English/ Help

    Which of the following sentences is an example of second person narrative voice? A. You became lost in a labyrinth of lies and deceptions. B. It was a labyrinth of lies and deceptions in which she was lost. C. He was lost in a labyrinth of lies and

    asked on August 4, 2014
  22. English

    when one assumes that when one event follows another in time, that the first event causes the second to occur,he or she may relying, on what? causation or reverse chronological order I really do not know

    asked on July 17, 2014
  23. Science

    Experiments cannot validate hypotheses, only falsify them. The statement above can be restated in which of the following ways? A. Until disproved, an explanation for an observation is valid. B. Certain concepts cannot be subjected to direct

    asked on July 15, 2014
  24. math

    at 8 am Dylan and his neighbor drove their cars to a city that was 240 mi. away from their neighborhood. when Dylan reached the city mickey had 40 mi. to go. he finally completed his trip48 minutes later

    asked on March 22, 2016
  25. physics

    what is the centripetal force of the train in the previous problem whose speed is 27.8 m/s rounding a curve whose radius of curvature is 150m if the train mass is 8000 kg

    asked on September 29, 2014
  26. Biology/Help

    Which of the following is the purpose of the waxy substance that builds up in the ear canal? A. Insulating the ear canal B. Trapping and removing debris C. Promoting sound conduction D. Cushioning and stabilizing the pinna I thinks it is B

    asked on July 30, 2014
  27. Physics

    a ball dropped from rest bag by a little boy from window of a three storey apartment how far has it fallen fter 3s What is the ball's velocity after 4 second of fall How far does ball fall during the lst 4 second?

    asked on August 11, 2014
  28. English/ Help

    It was a perfect day for a boat ride on a lovely river.? Which of the following parts of speech is the word "lovely" in the sentence above? A. Coordinating conjunction B. Prepositional object C. Adjective D. Adverb I think A

    asked on August 4, 2014
  29. Science

    Two students collect information about the number of dandelions in a park. Based on their sampling, they estimate that there are 900 dandelions in the 300-square-meter city park. To determine the accuracy of their estimate, which of the following questions

    asked on July 13, 2014
  30. physics

    A toy rocket is shot vertically from the base of a multiple level parking garage. the rockets height in feet is modeled by the equation h(T)= -16T squared+ 128 T, where T is the time in seconds if the rocket just reaches the top of the parking garage, how

    asked on April 15, 2012
  31. Math

    Jennifer had $24 to spend on five pens.after buying them shr had $14. How much did each pen cost

    asked on September 19, 2018
  32. Biology

    . The covalent bonds between the monomers of an enzyme macromolecule are A. glycosidic bonds. B. peptide bonds. C. phosphodiester bonds. D. ester bonds. I thimk it is B

    asked on July 13, 2014
  33. Chemistry

    NaOH + HS0-+ Hp + NaS0 24 24 Which of the following is the number of moles of NaOH required to neutralize 1 mole of H2S04 in the equation above? (Note: The reaction is not balanced.) A. 0.5 moles B. 1 mole C. 1.5 moles D. 2 moles 1

    asked on July 13, 2014
  34. Biology

    Which of the following terms describes changes in allele frequencies in the gene pool over a single generation? A. Macroevolution B. Microevolution C. Segregation D. Speciation

    asked on July 13, 2014
  35. Science

    Which of the following procedures is an appropriate negative control for testing the hypothesis that air contains bread mold spores? A. Seal slices of bread in a container to minimize air contact. B. Place slices of bread in a refrigerated environment. C.

    asked on July 13, 2014
  36. Physics

    A 20,000 kg vehicle is running at 80km/hr in a rotonda with a radius of curvature 25m compute for the centripetal force

    asked on September 29, 2014
  37. math

    if P(x) = x^3 -3x^2 +4 then P(1)

    asked on September 1, 2014
  38. English/ Help

    The movie star caused a kerfuffle at the mall as shoppers quickly gathered around to get a better look and take pictures. Which of the following is the meaning of "kerfuffle" as used in the sentence above? A. A misunderstanding B. A commotion C. A

    asked on August 5, 2014
  39. English/ Help

    Choose the sentence that does not include a usage error. A) In his article, the author implies that plagiarism is more prevalent among today’s generation of college students than it was among previous generations. B) In his article, the author infers

    asked on July 22, 2014
  40. Chemistry

    At the instant that an elastic falling object strikes the ground and becomes compressed, which of the following energy transformations occurs? A. Gravitational to electric B. Potential to kinetic C. Electric to gravitational D. Kinetic to potential I think

    asked on July 13, 2014
  41. Grammar

    I have this question: Either one of them HAS? or Either one of them HAVE?

    asked on July 13, 2014
  42. Chemistry

    Three liquids of differing densities are studied. Samples of liquid 1 and liquid 2 are placed in a container together. Liquid 1 rises to the top. Another sample of liquid 1 is placed in a different container together with liquid 3. This time, liquid 3

    asked on July 13, 2014
  43. math

    An employee at a marketing firm A student uses approximately 40 to 45 gallons of gasoline per month. The cost of gasoline varies between $2.96 and $3.61 per gallon. Which of the following is a reasonable estimate of the student's weekly gasoline expense?

    asked on July 13, 2014
  44. PHYSICS

    he following data were obtained for the position of a ball as it rolled along a straight track DISPLACEMENT (CM) 2.90 7.40 11.00 22.70 31.10 TIME 0.60 2.10 3.30 7.20 10.00

    asked on July 6, 2014
  45. PHYSICS

    the following data were obtained for the position of a ball as it rolled along a straight track DISPLACEMENT (CM) TIME 2.90 0.60 7.40 2.10 11.00 3.30 22.70 7.20 31.10 10.00

    asked on July 6, 2014
  46. Physics

    a container weighing a 1.20 x 10^4 N sits on a hydraulic press piston with can area of 0.80m^2. Compressed ir exerts a force of on the second piston which has an area of 0.30m^2 How large must this force be to support the car

    asked on September 29, 2014
  47. Physics

    joel is running down the newly waxed school corridor and tries to slide across the floor in this rubber shoes. The thick 1.5-cm thick rubber soles each have a cross-sectional area of 0.015m^2 and are sheared with a force of 10,000 N

    asked on September 29, 2014
  48. English/ Help

    The doctor who was late for an appointment drooped x-ray into puddle hurrying to the hospital. a into the puddle b hurrying to the hospital c Who was late d for an appointment I think D

    asked on August 4, 2014
  49. English/ Help

    Choose the sentence that does not include a usage error. A) Today’s college students may have grown up in the age of music sampling and file-sharing; however, they should realize that cutting and pasting sentences from a Wikipedia article constitutes

    asked on July 22, 2014
  50. Biology

    Which of the following is the balanced equation for photosynthesis in plant cells? A 3C0+ 3H0 + Energy --)-CH120 + 30 2 266 2 B. 6C0+ 6Hp + Energy--)-CHp + 60 2 616 2 C. CH0 + 30--)-3C0+ 3H0 + Energy 6126 2 2 2 D. CHp + 60--)-6C0+ 6Hp + Energy 616 2 2 I

    asked on July 14, 2014
  51. Science

    In developing countries, which of the following factors correlates with high birth rates? A. Increased availability of contraception B. Increased education and standard of living C. High infant mortality rate D. High availability of postnatal care

    asked on July 13, 2014
  52. MATH

    If P(x)=x^3 -3x^2 + 4 then P (-1)

    asked on September 1, 2014
  53. math

    evaluate the following polynomials -2x^2 + 5x -10 x=4

    asked on September 1, 2014
  54. math

    evaluate the following polynomials 1. 3x^2 -2x +5 x = -2

    asked on September 1, 2014
  55. PHYSICS

    dETERMINE the horizontal force needed to accelerate a 50 kg grocery cart from rest to 0.90 m/s in 2.8s if the coefficient of friction between the cart and the floor is 0.20?

    asked on August 11, 2014
  56. pHYSICS`

    dETERMINE THE HORIZONTAL FORCE needed to accelerate a 50kg grocery cart from rest to 0.90 m/s in 2.8s if the coefficient of friction between the cart and the floor is 0.20 ?

    asked on August 11, 2014
  57. English/ Help

    Which of the following sentences is written correctly? A When properly designed, an automobile can achieve great fuel efficiency. B. When properly designed an automobile can achieve great fuel efficiency. C. When properly designed, great fuel efficiency

    asked on August 5, 2014
  58. English/ Help

    . Which of the following sentences is written correctly? A When properly designed, an automobile can achieve great fuel efficiency. B. When properly designed an automobile can achieve great fuel efficiency. C. When properly designed, great fuel efficiency

    asked on August 4, 2014
  59. English/ Help

    Which of the following phrases is misplaced in the sentence above? A. Extending her arms over the left-field wall B. toward the fan C. on the fly D. before displaying the home run ball for all to see I think D

    asked on August 4, 2014
  60. math/help

    a)4 1/6 divided 1 1/6 b)4 2/9 + 3 3/1

    asked on July 28, 2014
  61. English/ Help

    Choose the sentence that does not include a usage error. A) Because the student did not see any author information on the website, he incorrectly implied that he did not need to credit the source in his assignment. B) Because the student did not see any

    asked on July 22, 2014
  62. math/help

    Find the measure of the supplement of a 22 angle.

    asked on July 22, 2014
  63. english Help

    the search for answers to cause and effect can result in _____ explanations(s) A. two B. many C.one D.no I think it is A

    asked on July 17, 2014
  64. English Need help

    how many other modes of writing should be used to develop your definition? A.As many as you need B.one C.two D.three

    asked on July 17, 2014
  65. Biology

    . Which of the following is the term given to the sequence of nucleotides that contains the information to make a specific protein molecule? A. Promoter B. Gene C. Operator D. Locus I thinh it is B.

    asked on July 13, 2014
  66. Biology

    . Which of the following is an appropriate description of the arrangement of the cell membrane? A. Fluid phospholipid bilayer containing embedded proteins B. Rigid carbohydrate bilayer containing embedded phospholipids C. Rigid layer of phospholipids with

    asked on July 13, 2014
  67. Physics

    if the mass of two balls is 0.300 kg each then what is the gravitational force between them if the distance is 0.3000 m

    asked on July 13, 2014
  68. physics

    The net external force on a cart is N north. If the cart has a total mass of 220 kg, What are the magnitude and direction of its acceleration?

    asked on July 9, 2014
  1. math

    64 and 19

    posted on September 8, 2016
  2. math

    you download 12 new songs on your MP3 player. Write each amount as an integer

    posted on September 7, 2016
  3. science

    Snow

    posted on December 3, 2015
  4. PHYSICS

    did the sign * is for multplication?

    posted on August 11, 2014
  5. English/ Help

    B!!!!!

    posted on August 4, 2014
  6. English/ Help

    misplace in the sentences

    posted on August 4, 2014
  7. english Help

    Many... Thank you!!

    posted on July 17, 2014
  8. Science

    Thank you!!!

    posted on July 14, 2014
  9. Science

    B that's the answer

    posted on July 14, 2014
  10. Science

    I think is D. I am not sure.

    posted on July 14, 2014
  11. Science

    my answer is C

    posted on July 13, 2014
  12. Physics

    i didn't gets how to solve this one can u help me

    posted on July 13, 2014
  13. physic

    how become 6.38*10^6? given is 6.337 x10^6?

    posted on July 13, 2014
  14. physic

    can u teach me how to solve damon?

    posted on July 13, 2014
  15. Physics

    WHAT?

    posted on July 13, 2014
  16. physic

    FOR MARS PLEASE

    posted on July 13, 2014
  17. PHYSICS

    i didn't gets how to solve

    posted on July 6, 2014
  18. PHYSICS

    @damon is that the answer in my table?

    posted on July 6, 2014
  19. PHYSICS

    an ant walks 22 cm in a northerly directions turns and walks southeasterly (45 degree East Of South) a distance of 47 cm what is a resultant displacement?

    posted on July 6, 2014
  20. math

    The python snake climbed 10 feet up a 12 foot tree and the boa constrictor snake climbed 16 feet up an 18 foot tree. Write the fraction of the tree each snake climbed. Simplify the fraction and compare the distances

    posted on October 18, 2011
  21. college chem

    I think the limiting agent is sodium sulfate... and the mass of sodium sulfide is 8.268 grams

    posted on October 16, 2011
  22. AP Chemistry

    bobpursley you jerk! 4 was the answer!

    posted on October 1, 2010
  23. OCEANOGRAPHY HELP

    how is living in a fast monving strean like living along the seashore

    posted on October 22, 2009
  24. 5th Grade Math

    i have no clue

    posted on September 11, 2007