Popular questions and responses by hi
  1. Physics

    Two events that are simultaneous in one inertial frame of reference will not necessarily be simultaneous in any other inertial frame of reference. Explain.

    asked on July 7, 2018
  2. science

    Which of the following adjustments would cause an image to change from real to virtual? a)moving the object from the focal point of a converging lens to a position inside the focal length b)moving the object from the focal point of a diverging lens to a

    asked on April 30, 2020
  3. math

    Two workers finished a job in 12 days. How long would it take each worker to do the job by himself if one of the workers needs 10 more days to finish the job than the other worker?

    asked on July 26, 2020
  4. History

    What best describes the concept of economic interdependence? a)Companies with too many available workers depend on foreign sources for necessary goods. b)Companies in underdeveloped countries depend on developed countries for cheaper goods. c)Companies in

    asked on May 1, 2020
  5. math

    Two shaded identical rectangular decorative tiles are first placed (one each) at the top and at the base of a door frame for a hobbit's house, as shown in Figure 1. The distance from W to H is 45 inches. Then the same two tiles are rearranged at the top

    asked on August 3, 2020
  6. science

    Which of the following choices correctly explains why light separates into colors when moving through a prism? a)The different colors of light travel at different speeds through glass so they refract at different angles. b)The different colors of light

    asked on April 30, 2020
  7. History

    What was the main reason that President Truman proclaimed what would become known as the Truman Doctrine in 1947? a)to develop a positive relationship with the Soviet Union b)to show that the United States was threatened by Germany’s nuclear capabilities

    asked on May 6, 2020
  8. Science

    Which choice most accurately explains the role of a circuit component in preventing a circuit from getting too hot and catching fire? (Select all that apply) 1-A fuse can be used to prevent a circuit from getting too hot. It will melt if the current gets

    asked on May 6, 2020
  9. History

    What is an example of the way social media was employed during the protests in Ukraine? a) Foreign governments used social media to spread propaganda discrediting the protests. b) Protesters strategized bombings of government buildings and leaders using

    asked on April 24, 2020
  10. science

    The secondary coil consists of 20 loops and has an output voltage of 80 V. If the primary coil had 100 loops, what was the voltage across the primary coil? 400 V 80 V 25 V 20 V

    asked on May 7, 2020
  11. math

    Find a constant A so that the roots of y=f(Ax) are {0,±10}.

    asked on July 13, 2020
  12. History

    What was the impact of the differences between Hutus and Tutsis in Rwanda in the 1990s? a) The Hutu-led genocide of Tutsis in Rwanda was retaliation for years of ethnic conflict. b) The Hutu population began to increase migration to other African countries

    asked on April 24, 2020
  13. Mathematics

    Blackie's mass is 4kg less than Jessie's mass. Together, Blackie and Jessie have a mass of 72kg. What is each dog's mass?

    asked on August 12, 2020
  14. History

    Which were factors that triggered the Darfur genocide? Select all that apply. 1)Sudan’s colonial occupiers created an elite Sudanese class to control lower-ranked classes. 2)A bitter rift over enforcing Islamic law between Arab Muslims and non-Muslim

    asked on April 24, 2020
  15. Science

    How can spectroscopy and infrared technology be useful in space? (5 points) They can enhance speed by making spacecraft fuel more efficient. They can measure magnetic fields produced by astronomical bodies. They can provide an emergency escape to the

    asked on April 24, 2019
  16. Science

    Which option correctly identifies types of electromagnetic generators? (Select all that apply) transformer generator parallel generator AC generator DC generator

    asked on May 7, 2020
  17. alerbra hellllllllllllllppppppppppp

    use the graph below to answer the question 1. what are the coordinates of point f 1 point & how do you post a pichure?

    asked on March 7, 2017
  18. Science

    The primary coil consists of 2 loops and there is a voltage of 6 V across the coil. If the secondary coil consists of 10 loops, what is the induced voltage? 30 V 11 V 3.3 V 6 V

    asked on May 7, 2020
  19. science

    A radio wave travels through space with a frequency of 2 x 104 Hz. If the speed of the radio wave is 3 x 108 m/s, what is the wavelength of this wave? A. 6.7 x 10-4 m B. 6 x 1012 m C. 1 x 104 m D. 1.5 x 104 m

    asked on April 22, 2020
  20. Math

    A circle has equation x2 +y2 + 4x - 2y - 11 = 0 the coordinates of the points where C crosses the y axis, giving your answers in simplified surds

    asked on November 12, 2019
  21. Geometry

    1. If ΔRST symbol ΔNPQ, then RT line is congruent to _____. (1 point) line NP line NQ line PQ line QP 2. Given RST NPQ, RT = 7x – 5, NQ = 5x + 11, find the length of RT and of NQ. (1 point) 8 51 40 56 3. Which of the following statements is true about

    asked on December 5, 2013
  22. AP Psychology

    Chlorpromazine is an antipsychotic drug that reduces paranoia and hallucinations by increasing involuntary muscle movements. reducing involuntary muscle movements. dampening responsiveness to irrelevant stimuli. decreasing the availability of

    asked on November 1, 2012
  23. math

    Write the rules for determining the sign of the product when multiplying integers. Then, write the rules for determining the sign of the quotient when dividing integers. Use your own words and use complete sentences. Make sure you answer both questions

    asked on August 15, 2019
  24. Social studies

    What major difference between the Eastern and Western churches led to their schism? A. They disagreed about the divinity of Christ. B. They disagreed about the use of icons. C. They disagreed about Church leadership and authority. D. They disagreed about

    asked on April 4, 2019
  25. Spanish

    Which mountain range overlooks Santiago Chile. A the Alps B the Andes C the Appalachian Which words would you use to complete the phrase I like salads in Spanish. ( )las ensaldas A me gustan B me gusta C te gustan

    asked on November 27, 2018
  26. math

    Use factoring tofind the x intercepts of the graphs of these quadratic poly-nomials:y=ax2+bx+c,where a,b,c are constants

    asked on July 13, 2020
  27. History

    Brazil’s history differs from the history of most countries in South America because Brazil A. was never successfully colonized by the Europeans B. was colonized by Portugal, not Spain*** C. had a few natural resources to export D. achieved its

    asked on March 13, 2019
  28. Social studies

    Why did the Incas build terraces? A. to improve travel and communication through the empire B. to allow them to build homes on the sides of mountains*** C. to make it easier to climb high mountains D. to increase the amount of fertile farmland

    asked on March 12, 2019
  29. Math

    Find the missing length. Round to the nearest tenth, if necessary. A=8 B=2 C=? A. 441 B. 22.5 C. 64*** D. 19.4 PLEASE HELP ME

    asked on March 6, 2019
  30. math

    Lesson 13: Geometry Unit Test Essential Math 7 B Unit 1: Geometry plz all answers i need it im not lying my grandpa has cancer stage 4 terminal i need them so i can go up to maryland and say goodbye please

    asked on February 8, 2019
  31. calculus

    find the domain and range of f^-1 where f(x)=1/3x+2

    asked on September 14, 2018
  32. physical science

    If you push a 900N refrigerator with the same force as you lift a 40N dumbbell, the dumbbell will move faster. which of Newton’s laws is this an example of? Explain how you know please. i know it's not the 3rd law.

    asked on January 30, 2017
  33. chemistry

    what is the name of reaction for 3C2H2--> C6H6?

    asked on September 22, 2013
  34. math

    Suppose that n tennis players want to play an elimination tournament. That means: they pair up, at random, for each round; if the number of players before the round begins is odd, one of them, chosen at random, sits out that round. The winners of each

    asked on February 20, 2012
  35. History

    What problems did medieval towns face? How did medieval europeans attempt to deal with those problems? How did an independant judiciary and common law in England help to protect individual rights?

    asked on September 26, 2010
  36. History

    Which identifies the relationship that Communist governments such as North Korea and China have with the media? a)The media has near-complete freedom in Communist countries as a result of the advent of the Internet. b)Communist governments have implemented

    asked on May 5, 2020
  37. algebra

    Two similar data sets are being compared. The standard deviation of Set A is 4.8. The standard deviation of Set B is 6.5. Which statement about the data sets is true? a)The mean of the data in Set B is greater than the mean of the data in Set A. b)The

    asked on April 30, 2020
  38. math

    Express the following in the form a + bi, where a and b are real numbers: √15+8i √3-4i √2i √-48+14i

    asked on April 25, 2020
  39. math

    Let f(x)=x^2+2 and g(x)=1−3x. Find each function value: (f−g)(2)

    asked on March 2, 2020
  40. Math

    I don't understand what this question is implying. . The number of cells increased 160 percent. If the original number was 800, what was the final number?

    asked on February 17, 2020
  41. Social Studies

    hi i need help checking my answer How did early contact with China affect Japan? A. The Japanese government became a model for China. B. Japan became a Chinese territory. C. The Japanese adopted the Chinese writing system. D. The original inhabitants of

    asked on September 5, 2019
  42. Social Studies

    Study the graph. A graph shows the number of carbon emissions in Scandinavia. Emissions are shown in metric ton. In Denmark, there were 8 in 2009 and a little over 8 in 2010. In Finland, there were 10 in 2009 and a little over 11 in 2010. In Iceland, there

    asked on April 8, 2019
  43. Social Studies

    How is the economy of Mexico different from the economies of most Central American countries? A. Mexico has a mixed economy, while most Central American countries have a command economy. B. Mexico's economy is primarily centered on tourism, while most

    asked on March 7, 2019
  44. History

    “...[The] said Cooper Hughs Freedman with his wife...are to work on said farm and to cultivate forty acres in corn and twenty acres in cotton, to assist in putting the fences on said farm in good order and to keep them so and to do all other work on said

    asked on March 20, 2018
  45. Geometry

    angle m3 = 37. Find angle m1

    asked on September 28, 2016
  46. history U.S

    I can't find the answer to this plz help how did adams' supporters characterize jefferson during the election og 1800?

    asked on January 21, 2016
  47. Chemistry

    A piece of copper metal (specific heat 0.385 J/g∘C) at 85.6 ∘C is placed in 50.0 g of water at 16.2 ∘C. The metal and water come to the same temperature of 23.6 ∘C. What is the mass?

    asked on September 17, 2015
  48. science

    Give the value of the 1st ionization energy of beryllium (Be). Express your answer in Joules (J/atom).

    asked on November 17, 2012
  49. Algebra

    The directrix of a parabola is y=9 . The focus of the parabola is (2,5) . What is the equation of the parabola? y=−1/8(x−2)^2+7 y=1/8(x−2)^2−7 y=1/8(x−2)^2+7 y=−1/8(x−2)^2−7

    asked on February 7, 2020
  50. Physics

    If the beaters on a Mixmaster make 710 revolutions in 4 minutes, what is the average rotational speed of the beaters? Express your answer in both revolutions per minute and revolutions per second.

    asked on April 24, 2019
  51. Math

    Look at the shaded triangle in the drawing below. Describe in detail the transformations needed to create the rest of the square design. You can use a combination of translation, reflections, and rotations of the shaded triangle (Figure I) to create the

    asked on April 9, 2019
  52. Social Studies

    What encourages Mexican workers to come to the United States, and how do these workers affect Mexico’s economy? This is an essay question an I need help please.

    asked on March 7, 2019
  53. history

    People joined monasteries and convents in order to

    asked on September 28, 2018
  54. Chemistry

    For the galvanic cell that uses the reaction 2 Al(s) + 3 Ni2+(aq) → 2 Al3+(aq) + 3 Ni(s) the value of n in the relationship ΔG° = -nFE° is ________.

    asked on March 31, 2017
  55. msth

    the two figures below are congruent. Find the measure of the angle that isn't labeled on either figure?

    asked on February 23, 2017
  56. geometry

    An A-frame house is 40 feet high and 30 feet wide. Find the angle that the roof makes with the floor. Round the angle nearest degree.

    asked on April 28, 2016
  57. English

    help and check please . If got wrong help please. My answers have * by it Choose the meaning of the bold words in questions 1-6 1. Men hold me/ FORMIDABLE for GUILE in peace and war: / this fame has gone abroad to the sky’s rim. (from the Odyssey, Part

    asked on January 24, 2016
  58. science

    which of the following body systems does NOT rely on the autonomic nervous system to stimulate involuntary events? A. Skeletal System B. Digestive System C. Circulatory System D. Respiratory System

    asked on February 25, 2014
  59. Math

    Winnie can use up to 10 coupons when buying a box of DVDs. Each coupon is worth $3. She bought a box of DVDs for $56 less the value of her coupons. a)choose a variable to represent the number of coupons. b)Write an Algebraic expression that describes the

    asked on May 15, 2013
  60. math

    Kevin plotted a linear equation on a graph with 18 as the y-intercept. Which of the following could be the equation plotted by Kevin?

    asked on February 22, 2013
  61. math

    pls. explain how to get this: A number x is the harmonic mean of two numbers a and b if 1/x is the mean of 1/a and 1/b. a) Write an equation to represent the harmonic mean of a and b. b) Determine the harmonic mean of 12 and 15. c) The harmonic mean of 6

    asked on November 9, 2011
  62. Math

    A fitness club offers two membership plans. Plan A: $30 per month Plan B: $18 per month plus $2 for each visit to the club What is the equation for each plan?

    asked on April 30, 2020
  63. circuits physics

    A Play station 4 draws 130 Watts of power during game play. The power company charges $0.26 per kilowatt – hour (kWh). If you played 3 hours of video games every day, how much does it cost to play X-Box during the month of April?

    asked on April 29, 2020
  64. circuits physics

    A 60 Watt light bulb draws 0.5 A of current. a. What is the voltage across the light bulb? b. What is the resistance of the light bulb?

    asked on April 29, 2020
  65. circuits

    Consider a DC circuit that consists of a 6V battery and 3 resistors (R1, R2, and R3). Resistors R1 and R1 are wired in parallel, with resistances of 2, and 4 ohms, respectively. R3 is a 6 ohm resistor that is wired in parallel with a light bulb (B) that

    asked on April 28, 2020
  66. history

    What led to conflict in Bosnia between the Bosniaks and Serbians? A) Free elections in Bosnia promoted a Serbian Revolution that sought to rid the region of Bosniaks through mass deportation. B) Expansion of the European Union led to tighter controls over

    asked on April 23, 2020
  67. Math

    (7* {10 to the power of -14}) (2*{10 to the power of 4}) Please help! I think it's 14*{10 to the power of -56), but I'm not that sure.

    asked on February 17, 2020
  68. Chemistry

    How many atoms of hydrogen are contained in 1 mole of methane (CH4)? Is it 3.01 x 10 to the 24th How many water molecules are in a 0.649 g sample? Answer in units of molecules.

    asked on February 1, 2020
  69. Music

    which one of the following is not one of the instrument families in the standard symphony orchestra? A. strings B.woodwinds C.brass D.sopranos~

    asked on December 9, 2019
  70. Social studies

    Which of the following suggests that the Indus valley people How to strong system of central government

    asked on November 6, 2019
  71. Math

    would you classify the number 190 as a perfect square , a perfect cube, both, or neither?

    asked on November 5, 2019
  72. math

    The table shows the relationship between red and blue marbles. Red marbles (r) 4 10 11 18 29 Blue marbles (b) 1 7 8 15 26 Is the relationship between red and blue marbles additive or multiplicative? Write the relationship as an equation. A. additive; r = b

    asked on October 31, 2019
  73. Social studies

    What is Sanskrit? 1 A Buddhist term for achieving enlightenment 2 An agent and language development by the Indo Aryans 3 an epic poem that teaches importance of Brahman 4 A major city From the Indus Valley civilization

    asked on October 29, 2019
  74. math

    The table represents the ratio of crackers to cheese sticks in different snack bags. Complete the ratio table Crackers 10 20 ? 90 150 ? Cheese sticks 3 ? 12 ? ? 69

    asked on October 25, 2019
  75. Math

    Point A(4, 2) is translated according to the rule (x, y) (x + 1, y - 5) and then reflected across the y-axis. A) In which quadrant of the coordinate plane is point A located. B) What are the coordinates of translated points A'? In which quadrant plane is

    asked on April 9, 2019
  76. science

    A fuse prevents a circuit from overheating by _____. connecting the circuit to a ground wire increasing the resistance in the circuit opening a switch and breaking the circuit melting and breaking the circuit

    asked on April 9, 2019
  77. history

    i need help checking my answers What teaching of Jesus most likely appealed to the poor? A. People should strive to live good lives. B. People must love God above all others. C. People are equal in the eyes of God. D. People need to ask forgiveness for

    asked on April 5, 2019
  78. Social studies

    How is Brazil different from all other South American countries? A. Most of its people live in cities. B. Its culture is a blend of several cultures. C. Its official language is Portuguese.*** D. Most of its people are Christian.

    asked on March 21, 2019
  79. Social studies

    The United States became a society of consumers in the late nineteenth century. What was the key factor that made that possible?

    asked on March 19, 2019
  80. Math

    An investor puts ​$700 in an account that pays 2​% interest compounded annually. Find the account balance after 8 years.

    asked on March 15, 2019
  81. Social studies

    which of the following best explains why most immigrants came to the unitd states between 1865 and 1920 a. most immigrants were wealthy Europeans who brought successful business to the united states. b. most immigrants faced problems at home. they believed

    asked on March 13, 2019
  82. SS

    Which of the following was an immediate cause of the Mexican Revolution of 1910? A. Spanish domination*** B. the overthrow of Maximilian C. widespread poverty D. the building of the Panama Canal

    asked on March 5, 2019
  83. SS

    Which impact did Enlightenment ideas have on the Spanish colonies? A. Many colonists called for independence from Spain.****** B. Some mestizos argued that the Spanish crown should have more power. C. Father Miguel Hidalgo called for harsher slave codes.

    asked on February 14, 2019
  84. History

    Since the breakup of the Soviet Union, people in the Caucasus and Central Asia have experienced a new way of life. Which statement reflects one of these changes? A. In Uzbekistan, protests resulted in a president removed from power and a new president

    asked on January 16, 2019
  85. history

    Which of the following is not a biased statement about Texas history? A. Annexation was the only way to solve the debt problem created by sam Houston. B. the republic of Texas was an independent country for 10 years. C. the native Texans were the cause of

    asked on December 20, 2018
  86. History

    What was the cause and effect of the U.S. mexican war

    asked on December 16, 2018
  87. Social Studies

    How are equal-area projections of Earth inaccurate? A. There are distortions near the center of the map. B. Directions and the shapes of the landmasses are distorted. C. This projection does not show true sizes. D. Areas close to the poles are

    asked on August 30, 2018
  88. Math

    Which situation results in a final value of exactly zero? The temperature outside was 50* below 0 at 7:00 am. The temperature rose to 3* in each of the next 4 hours. Hector earned 7.50 for every 8 hours of work. He used 60 of this money to buy video games.

    asked on February 4, 2018
  89. reading the cay

    What is the most likely conclusion about Timothy’s feelings regarding stew cat? He is angry at stew cat He is a protective of stew cat as he is Phillip He understands Phillips affection for stew cat He is indifferent toward stew cat when rescue does not

    asked on December 12, 2017
  90. Science

    Why must organisms reproduce? A. Organisms must reproduce to maintain genetic similarity in the species. B. Organisms must reproduce to continue to build genetic diversity into the species. C. Organisms must reproduce to continue the species.*** D.

    asked on September 26, 2017
  91. alerbra hellllllllllllllppppppppppp

    u borrow 2000 for a period of 4 years you are charged simple interest at aa rate of 3% how much will you repay at the end of 4 years?

    asked on March 7, 2017
  92. physics

    Blood flows through a major artery at 1.3 m/sfor 0.40 s, then at 0.70 m/sfor another 0.40 s through a smaller artery. Part A Is the average speed of the blood 1.0 m/s, greater than 1.0 m/s , or less than 1.0 m/s? Verify your answer to Part A by calculating

    asked on February 6, 2017
  93. physical science

    Look at the graph below measuring the speed of a truck and answer the following 2 questions: a) If the graph represents speed, what is measured on the x and y axes? You need to specifically identify which axis is which. b) Based on what the y axis

    asked on January 31, 2017
  94. history

    My history Textbook did not clarify how the U.S decided to go to war with Britain in 1812. can anyone explain? that would clear up alott for me thx:)

    asked on January 27, 2016
  95. Math

    Julia deposited 1/2 her paycheck in her savings account and 1/4of it in her checking account. She spent $22.76 of it on a T-shirt and then spent 1/4 of what was left of her paycheck on lunch. When she arrived home, she had $16.68 of her paycheck left. How

    asked on July 14, 2015
  96. chemistry

    Which of the following are single replacement reactions? Choose all that apply. Question 1 options: NaHCO3(s) + HCl(aq) → NaCl(aq) + CO2(g) + H2O(l) Zn(s) + 2 HC2H3O2(aq) → Zn(C2H3O2)2(aq) + H2(g) N2(g) + 3 H2(g) → 2 NH3(g) 2 AgNO3(aq) + Cu(s) → 2

    asked on June 6, 2014
  97. science

    Titanium (Ti) can be produced by the reaction of metallic sodium (Na) with titanium tetrachloride vapor (TiCl4). The byproduct of this reaction is sodium chloride (NaCl). Calculate the amount of titanium produced (in kg) when a reactor is charged with 61.0

    asked on November 17, 2012
  98. math(advanced functions)

    what are the key features of x/(x^2-3x+2)?

    asked on November 4, 2011
  99. math(advanced functions)

    what are the key features of x/(x^2-3x+2)?

    asked on November 4, 2011
  100. english

    which one is correct. a)the temperature was 104 degrees and Eric's car was not equipped with airconditioning grammar or b)the temperature was 104 degrees, and Eric's car was not equipped with airconditioning grammar

    asked on September 25, 2011


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