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Student

Questions and answers by visitors named Student

Questions

  1. Which two cultures use creatures to protect or transport humans after death?

    A. America (bald eagle) and Spain (Bull) B. Egypt (the animal-headed sons of Horus) and China (the dragon) C. Egypt (the jackal) and China (the lion) D. Mayans (the crow) and

  2. a coil has resistance of 50 ohms and reactance of 70 ohm's. a capacitor is connected in parallel to produce resonance. the source is 120v. what is the power drawn by the circuit ?

  3. Match/Choose the math sentences that count up and back by tens.

    47+40=88 57+30=87 46+10=56 56-10=46 87-40=47 87-30=57 Write the matching math sentences.

  4. How are red blood cells and neutrons different? (1 point)

    A. Neurons need oxygen, but red blood cells do not. B. Neurons lack organelles, but red blood cells have organelles. C. Neurons contain DNA, but red blood cells do not. D. Neurons are all the same

  6. 1.How do landscape paintings convey the values and ideas of Chinese culture?

    A.Landscape paintings show chaotic, unhappy culture. B.Landscape paintings reveal the importance of natural history to the Chinese. C.Landscape paintings show that Chinese desire

  7. An alternating current and a direct current flows simultaneously in the same conductor. if the effective value of the alternating current is 5A and the direct current is 10 A, what will an AC ammeter read when connected in the circuit?

  8. What does delineate mean?

    A:to delete B:to break down C:to get out of line D:to put off I think it is B;can someone please check?

  9. Chinese artists often express their philosophies using calligraphy. Which is the best definition of philosophy?

    A. a complex idea B. a religion C. a way of practicing creativity D. a system of guiding principles I think its C. Please answer as soon as

  11. One object is traveling northeast with a momentum of 12 kg-m/s, while a second object is traveling southwest on the same path as the first object with a momentum of 4 kg-m/s. When the two objects collide, they stick together. What is the momentum after

  12. A Canadian postal code uses six characters. The first, third, and fifth are letters, while the second, fourth, and sixth are digits. A U.S.A zip code contains five characters, all digits.

    How many codes are possible for each country?

  13. Which two cultures use creatures to protect or transport humans after death?

    America (bald eagle) and Spain (bull) Egypt (the animal-headed sons of Horus) and China (the dragon)***** Egypt (the jackal) and China (the lion) Mayans (the crow) and Greeks (the

  14. An artist is asked to create a painting of a politician, Illustrating qualities of power and benevolence. Which visual composition best suits these goals.

    A. the politician bending down from the stage to shake the hands of his supporters. B. the politician

  16. what value of resistance should be placed.in parallel with 50microfarad capacitor in order to have a total power factor of 0.8 on a 6p-cycle ac system?

  17. Which expression would you use to figure out the number of ways you can arrange the letters in the word equation? (1 point)

    8! 8P4 4P8 4! Five friends are having their picture taken. How many ways can the photographer arrange the friends in a row? (1 point)

  18. In a closed system, an object with a mass of 10 kg moves at a velocity of 5.4 m/s. It collides with a second object that has a mass of 12 kg and that is moving in the opposite direction with a velocity of 3.5 m/s. What is the total momentum of the system

  19. A coil of 50 ohm resistance and of 150mH inductance is connected in parallel with a capacitor 50microF. The source voltage is 100 sin(wt+30). What is the equation line current.

  21. Three impedances zL=3+j4 ohms, zC=4-j4 ohms and zR=0+j3 ohms are connected in parallel. solve for the power factor of the combination.

  22. A solution containing equal masses of glycerol, C3H8O3, and water has a density of 1.10 g/mL. Calculate the molality of glycerol.

    I got 11.9 m.

  23. Which of the following is/are a point source of pollution? (can be multiple)

    A. Sewage treatment plant B. a harbor C. storm runoff D. suburban community E. farm runoff would Sewage treatment plant be the only direct source?

  24. An inductive coil with a resistance R and Inductance L is connected in parallel with a 30ohm resistor. The combination is then connected across a 60hz ac source. If the currents in the coil, resistor and the total are 6,4 and 8A respectively. Determine the

  26. Ln(2x-1)^2=7 solve for x.

    Please check my answer!!! =17.0577259793 Is this number too big?

  27. Which analogy show an analogy of degree? shoe : high heel, above : below, large : gigantic, quietly : softly?

  28. The Kansas-Nebraska Act continued the Ideas of which of the following? (2 point)

    O Missouri Compromise O Com promise of 1150 O Free Soil Party O Dred Scott k. Sanford

  29. Which sentence includes a participle phrase?

    I looked in the closet for my sweater. During winter break, we will be going skiing. Would you help our planning the trip? I would like to go to the new mountain resort. I think it is the second one please check

  31. Hi, I'm in Honors Geometry and I need a little help on this portfolio project. I know how to make the triangles but I'm not sure how to answer the questions.

    SSS: Cut three pieces of string. Make each piece of string the length of one of the sides of the

  32. a resistor R is connected in parallel with a 10-ohm inductive reactance. the combination is then connected in series with a 4ohm capacitive reactance. the whole combination is connected across a100 volt, 60hz supply. how much is R if the angle b/h the

  33. 2e^3x=16

    Solve for x. So far I changed this to 2ln3x=16 then ln3x=8 then...

  34. Which of the following would contribute most to the creation of a strong economy?

    A. The government limiting loans to agencies like FEMA or small business enterprises B. The lowest possible number of businesses taking out loans to expand operations C. The

  36. Find the lateral area for the given cylinder Use 3 14 for m and round to the nearest whole

    mutaber

  37. During the debate over California's statehood, which political figure refused to compromise regarding the (1 point)

    expansion of slavery? O Daniel Webster O john Calhoun O Henry Clay O Millard Fillmore

  38. Question 1

    A) Use the periodic table and example bond table to answer the question. Example Bond Energies of Ionic Compounds Li–F = 1036 kJ/mol Li-Br = 807 kJ/mol Na-F= 923 kJ/mol Na-Br = 747 kJ/mol Given the general trend with bond energies, which of the

  39. (1) Which statement about the number of protons and neutrons in a nuclear change is correct?

    (A)The total charge before and after the change remains the same, but the total atomic mass is different. (B)The total atomic mass before and after the change

  41. A whisper in a Quiet library is about 30 decibels. What decibel level would be recorded by a table of 10 library patron each whispering at 30 decibels?

    Would the answer be 40?

  42. PLEASE ANSWER FAST !!

    Which two ways can not be used to prove two triangles congruent? Why? SSS,SAS,ASA,AAS,HL i think its AAS because the non included side can be one of the two sides not being used but i have no clue what the other would be. Please help

  43. The competing teams shook hands after the game was over.

    What is the participle and it’s function isn’t he sentence? Please help

  44. Which sentence displays correct subject-verb agreement?

    The staff at the library are very helpful. My collection of stamps I’m extensive. The herd of cattle are huge! The crew of workers are finishing the job. I don’t know someone please help me

  46. A 70-g ball B dropped from a height h_0=1.5 m reaches a height h_2=0.25 m after bouncing twice from identical 210-g plates. Plate A rests directly on hard ground, while plate C rests on a foam-rubber mat. Determine

    (a) the coefficient of restitution between

  47. an impedance coil draws an apparent power 50-volt ampere and an active power of 40 watts solve for q factor

  48. A series circuit containing a 295 microfarad capacitor and a coil whose resistance and inductance are 3 ohms and 4.42 mH, respectively are supplied by the following series connected generators: 35 V at 60 Hz, 10 V at 180 Hz and 8 V at 240 Hz. Determine the

  49. 4. How does Abigail Adams use the ideas of the patriots to support her cause?

  51. The reaction of CH4 in

    2CH4(g) ---->/<---- C2H2(g) + 3 H2 (g) is carried out at a different temperature with an initial concentration of [CH4]=0.087M. At equilibrium, the concentration of H2 is 0.012 M. Find the equilibrium constant at this temperature.

  52. A solution containing equal masses of glycerol, C3H8O3, and water has a density of 1.10 g/mL. Calculate the molality of glycerol.

    I got 11.9 m.

  53. Our difference is 6. We have a sum of 14. What numbers are we? We know number 10. How did you find 4? Please describe and solve the riddle.Write the number sentence.

  54. A system of equations is shown below:

    x + y = 3 2x − y = 6 The x-coordinate of the solution to this system of equations is _____. I'm thinking it could be X=3

  55. which of the following best describes daily life in the south during the civil war?

    a.about the same as before the war because factories provided necessities b.difficult but tolerable because most people did not experience major changes c.better because the

  56. You take a trip by air that involves three independent flights. If there is an 67% chance each specific leg of the trip is on time, what is the probability all three flights arrive on time? (Round your answer to 3 decimal places.)

    Probability =??

  57. In triangle ABC, the measure of angle B is 8 degrees more than three times the measure of angle A. The measure of angle C is 37 degrees more than the measure of angle A. Find the measure of each angle.

    What is the measure of angle A__? What is the measure

  58. A confidence interval was used to estimate the proportion of statistics students that are females. A random sample of 72 statistics students generated the following 90% confidence interval: (0.438, 0.642). Based on the interval above, is the population

  59. A uniform plank of length 5.1 m and weight 235 N rests horizontally on two supports, with 1.1 m of the plank hanging over the right support (see the drawing). To what distance x can a person who weighs 458 N walk on the overhanging part of the plank before

  60. What a the surface area of a sphere with a radius of 4 meters rounded to the nearest square meter?

  61. What is the length of the diagonal for the given rectangular prism to the nearest whole unit?

    Length- 8cm Width- 3cm Height- 7cm

  62. Why was the Ku Klux Klan formed?

    To higher unemployed men to work on natural conservation projects To help white southerners regain power To make sure the government played as small a role as possible in economic affairs

  63. What was the Freedmen’s Bureau?

    A government agency that was created to help former slaves A government agency that collects and analyzes intelligence to further nation security A government agency responsible for developing and executing federal laws

  64. Which of the following was a way that the south tried to get around the 15th amendment?

    Poll taxes Literacy Tests Grandfather clauses All of the above

  65. Precapillary sphincters are present before what?

  66. Does the word have a positive or negative connotation? encourage, nag, weird, unique.

  67. The swing has a higher moral message that it communicated to the viewer. True or False?

  68. What was the original purpose of Baroque art?

  69. Where should the runway of an airport be built if most of the wind is in the northeast?

  70. Where should waste disposal sites be built if most of the wind is in the southwest?

  71. What is the Cosine of α if a = 3.80, b = 3.90, c = 29.50?

  72. Find the surface area for the given cylinder. Use 3.14 for 7 and round to the nearest whole

    number.

  73. When the Republican Party formed, what was its primary goal? (I point)

    O to keep popular sovereignty O to maintain the series of compromises O to keep slavery out of the territories O to abolish slavery altogether

  74. Which of the following was stated as part of the Dred Scott v. Sandford ruling? (I point)

    O Only Congress could decide whether to allow slavery in the territories. O Congress could not decide whether to allow slavery in the territories. O Popular

  75. Waves have energy that causes particles in matter to vibrate. so, it stands to reason that

  76. Lightning contains gamma rays. Based on the position of the gamma rays in the electromagnetic spectrum, does lightning have more or less energy than a radio?

  77. Do X-rays have short or long wavelengths? Does their high or low energy damage matter?

  78. X-ray technicians wear protective gear to keep them safe from the x-rays. Why are x-rays dangerous?

  79. Frequency is measured in hertz. Which option best describes hertz?

  80. What's a 9 letter word for the Resistance to a change in the body's acceleration?

  81. When force arm & resistance arm are equal in length, a force to the resistance is required to balance it

  82. What's the most common machine in humans?

  83. What's angle beta a if angle betta b = 25.30?

  84. What's the sine of angle beta B if a = 7.00, b = 4.00, and c = 24.00?

  85. What's the size of Side B of a right triangle if a = 4.60 and c = 12.50

  86. Assume that lines IL and MP are parallel.

    If m25 = 110°, then what is mc8?

  87. A projectile is fired at an angle such that the vertical component of its velocity and the horizontal component of its velocity are both equal to 50 m/s

    A. Using g = 10 m/s^2, how long does it take for the projectile to reach its high point? b. What

  88. A bullet is fired horizontally and has a initial velocity of 800 m/s at a target located 200 m from the rifle.

    a. How much time does the bullet reach the target? b. Using g = 10 m/s^2, how far does the bullet fall in this time?

  89. The dry air rate is 10°C for every 1000 meters of change in elevation, while the moist air rate is 6°C for every 1000 meters of change in elevation. Is the atmosphere stable or not?

  90. The dry air rate is 10°C for every 1000 meters of change in elevation. What is temperature of dry air at 2500 meters if the initial temperature of air at ground level is 30°C?

  91. What happens when a wave is absorbed by a material?

  92. Please help and show all your work.

    Let y=-6/7 be the y-coordinate of the point P(x,y), where the terminal side of angle θ (in standard position) meets the unit circle. If P is in Quadrant III, what is cos(θ)?

  93. A building 200 feet tall casts an 80 ft long shadow. If a person looks down from the top of the building which of the following is the measure of the angle between the end of the shadow and the vertical side of the building to the nearest degree?

    1. Set up

  94. Nike walks for 51 s and with a speed of 250 m/s. How far in meters did he walk in that time?

  95. A person walks for 40 s with a speed of 250 m/s. How far in meters did they travel?

  96. A ball rolls up an inclined plane, slows to a stop, and then rolls back down. Is the velocity constant? Explain.

  97. A ball is thrown straight upward and then returns to the

    Earth. Sketch a graph of the speed (not velocity) of this ball against time. Where does the direction of the ball’s motion change?

  98. A rock is thrown straight upward, reaching a height of

    20 meters. On its way up, does the rock spend more time in the top 5 meters of its flight than in the first 5 meters of its flight?

  99. Why did white slave owners not like free African Americans living in the South?

  100. What did the Second Great Awakening lead many Americans to do?

  101. Actual vapor pressure is 20 mb and temperature is 20 °C. What's the relative humidity?

  102. Actual vapor pressure is 20 mb and temperature is 50 °C. What's the relative humidity?

  103. A package of air contains 600 g of water vapor. The total volume of air is 2 m

    ^3 and the volume of dry air is 1.5 m^3. The density of air is 1200 g/m3. Calculate the absolute humidity, specific humidity, and mixing ratio.

  104. A parcel of air contains 500 g of water vapor. The total volume of air is 1 m^3 and the volume of dry air is 3.5 m^3. The density of air is 1000 g/m3.

    Whats the absolute humidity, specific humidity, and mixing ratio?

  105. What are the numbers above 8,000?

  106. What plane and axis does plantar flexion and dorsiflexion occur in?

  107. What axis does plantar flexion and dorsiflexion occur in?

  108. The scapula is __ to the sternum

  109. The population of a town is 2400 in 2007. From 2007 to 2010, the town's population increased by 5% per year. What's the population of the town in 2010? Round your answer to the nearest whole number

  110. A new website got 4000 page views on the first day. During the next 4 days the number of page views increased by 30% per day. What's the amount of page views in the first 5 days? Round your answer to the nearest whole number

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