Questions Asked on
April 23, 2019

  1. science

    An orange is placed on a table in a completely dark room, without any source of light. Which of the following choices correctly describes what an observer will see as he looks in the direction of the orange? A) The orange will not be seen at all because

    asked by jordan
  2. Chemistry

    Elemental sulfur can be converted to sulfur dioxide by combustion in air. Sulfur dioxide will react with water to form sulfurous acid (see balanced equation below). SO2(g) + H2O(l) → H2SO3(l) What mass of sulfur dioxide is needed to prepare 29.36 g of

    asked by Sara
  3. history

    why did reformers want to pass the seventeenth amendment.

    asked by taylor
  4. Chemistry

    The electron in a hydrogen atom, originally in level n = 8, undergoes a transition to a lower level by emitting a photon of wavelength 3745 nm. What is the final level of the electron? a) 5, b)8, c)9, d)6

    asked by Kat
  5. physics

    A glass bottle full of mercury has mass 500g. On being heated through 35 degree census, 12.43 gram of mercury expelled. Calculate the mass of mercury remaining in the bottle (cubic expansivity of mercury is 1.8 * 10 raise to power -4 pre Kelvin, linear

    asked by poppy
  6. Special topics in guidance

    The caregiving style least likely to help children develop positive self-esteem is the _______ style. A. uninvolved B. indulgent C. authoritative D. authoritarian My answer is D.

    asked by Diana
  7. physics

    A generator with a single loop produces the greatest magnetic force on the charges and the greatest induced emf when a. the plane of the loop is parallel to the magnetic field. b. half of the loop segments are moving perpendicular to the magnetic field. c.

    asked by Daniel
  8. Physics

    A 2.50-kg object is moving along the x -axis at 1.60 m/s. As it S S passes the origin, two forces F 1 and F 2 are applied, both in the y -direction (plus or minus). The forces are applied for 3.00 s, after S which the object is at x S = 4.80 m, y = 10.8 m.

    asked by Jay
  9. Math

    Use the distributive property to remove the parentheses. 2(7+u)

    asked by Barry Vacker
  10. Math

    The diameter of a tire is 2.5 ft. Use this measurement to answer parts a and b. Show all work to receive full credit. I need help with part B About how many times will the tire have to rotate to travel 1 mile? (1 mile = 5,280 ft)

    asked by Plz Help
  11. Math

    For what values of a is the expression a(4a-16a)/a*|a|+a^2 undefined? A. a=4 B. a (less than or equal to) 0 C. a=16 D. a (greater than equal to)

    asked by Anonymous
  12. government

    Which specific part of the Fourth Amendment did NSA surveillance arguably violate? A. “supported by Oath or affirmation” B. “unreasonable searches and seizures” C. “to be secure in their persons, houses, papers, and effects” D. “no Warrants

    asked by dbh
  13. Physics

    Two thin lenses one with 12 cm focal length and the other with a -6.0 cm focal length are placed 18 cm apart.Locate the final image of an object placed on the axis 18 cm to the left of the positive Lena.

    asked by JN
  14. History

    Why did Thomas Jefferson believe that the creation of a national bank was unconstitutional? Jefferson sided with the Supreme Court’s ruling in Marbury v. Madison that stated the federal government had no authority over banking regulations. Jefferson

    asked by Kiara
  15. Math

    Hello I am having trouble with proving this: sinA/secA+secA/cscA = tan(A)(2-sin^2(A)) So far I've gotten SinA/(1/cosA) + (1/cosA)/(1/sinA) SinACosA + sinA/cosA I am stuck here, not even sure if multiplying by the reciprocal was the right step..

    asked by Jimbo
  16. Social Studies

    How did the geography affect how cultures developed in the Pacific island nations?

    asked by Min Yoongi's Wife
  17. Math

    Find 12th term of a geometric sequence whos first two terms are 4 and -8.

    asked by eydie
  18. Physic

    Two reasons why displacement method is not suitable when determining the volume of a charcoal?

    asked by Michael
  19. Calculus

    Help checking my work please! The region R is a rectangle with vertices P (a,ln a), Q (a, 0), S (3, 0), and T (3, ln a), where 1 < a < 3 (graph: A. Write an expression that gives the area of the rectangle as a

    asked by Josh
  20. Calculus

    1. The expression dy/dx = x(cube root (y)) gives the slope at any point on the graph of the function f(x) where f(2) = 8. A. Write the equation of the tangent line to f(x) at point (2, 8). y'=x∛y The tangent line at (2,8) is thus y-8 = 4(x-2) B. Write an

    asked by Wallace
  21. History

    What factors contributed to the weakening and decline of medieval Europe? My answer: In the 14th century, there were many factors that weakened and contributed to the decline of Medieval Europe. The peasants of the land went to decline; they had realized

    asked by Kensie
  22. world studies

    1. How has the Polish economy changed since the fall of the communist government? Collective farms were built. A socialist system was adopted. The foreign debt was paid. People own and run their own businesses. 2. Serbs, Croats, and Bosniaks have different

    asked by Adamissmart
  23. science

    Problem How could renewable energy sources be used to power a car? Devise a Plan 1. Consider what you learned about renewable energy sources. Use what you learned to design a car that operates entirely on renewable energy sources. 2. Think about the

    asked by Annie Jordan
  24. Math

    A scientist travels straight down for 90 seconds at a speed of 3.5 feet per second and then travels directly up for 30 seconds at a speed at a speed of 2.2 feet per second after this 120 second period,how much time in seconds,will it take for the scientist

    asked by Vivian
  25. History

    Why did the Puritans move to New England? Please help ms. Sue A.They were trying to escape poverty and famine. B.They hoped to find gold and other riches. C.They wanted to practice their own religion.** D.They were forced into exile by the British

    asked by Nicholas
  26. math

    You play video games online. When you sign up with the game site, you get 400 points. You earn 50 more points for each hour that you play. How many hours do you have to play to get to 1,000 points

    asked by curtis
  27. Calculus

    Find the area between the graph of f(x)= x(e^-x^2) and the x-axis for the interval (0, ∞). Your work must include the proper notation and show the antiderivative. If the integral diverges, show why.

    asked by Alice
  28. science

    A wheatherman reports the storm waves are about 2 meters high and about 35 meters apart what properties of waves is the reporter describing.

    asked by my name is jeff
  29. science

    What are 4 natural disasters tsunami,volcano

    asked by Star
  30. Accounting

    On June 3, a company borrows $200,000 cash by giving its bank a 90-day, interest-bearing note. On the statement of cash flows, where should this be reported?

    asked by Brooke
  31. Special topics in guidance

    Which type of stress occurs suddenly and disappears relatively quickly? A. Immediate B. Acute C. Chronic D. Healthy my answer is B. my answer is

    asked by Diana
  32. Special topics in guidance

    Almost all anger over issues of compliance occur between a child and A. another child of the same gender. B. an adult. C. another child of the opposite gender. D. a much-younger child. My answer is B.

    asked by Diana
  33. ACT

    Hi I completed ACT Form Z15 and I have looked everywhere and couldn’t find the answer key I was wondering if you could help me if I send pictures or maybe you guys have the answer key. Any help would be appreciated, Thanks!

    asked by Tyler
  34. Geometry

    1. Use the diagram to identify a segment parallel to CF. A. DG B. AD C. DC D. AB 2. The measure of angle A is 124°. Classify the angle as acute, right, obtuse, or straight. A. Acute B. Straight C. Right D. Obtuse 3. Find the measures of the complement and

    asked by Bella
  35. Calc 3

    Find ∫CF⋅dr where C is a circle of radius 1 in the plane x+y+z=4, centered at (3,2,−1) and oriented clockwise when viewed from the origin, if F=4yi−3xj+3(y−x)k

    asked by ally
  36. Maths

    1)a)Find the Cartesian equation of the curve represented x=1+4cosa, y= 4sina -2 b)Descibe the curve fully c)Find the Cartesian equation of the locus of the point A (x,y) when the distance A from y=4 is twice the distance between A and the pont (2,-1)

    asked by Roxy
  37. Maths

    Theta is acute and alpha is obtuse . It is known that sin theta=2/5 and cosec alpha =2. Compute the exact values of a) sec theta b) cos alpha c) tan( theta + alpha)

    asked by Kelly
  38. math

    in a right angle triangle with one of the angle 0 vertify that sin square theta + cos square theta = 1

    asked by sanmitra
  39. Math

    A camper wants to know the width of a river. From point A, he walks downstream 100 feet to point B and sights a canoe across the river. It is determined that = 42°. About how wide is the river?

    asked by J.R.
  40. math

    sec square theta - tan square theta = 1

    asked by sanmitra
  41. Chemistry

    According to Avogadro's Law, when the number of moles doubles, the volume a. is squared. b. quadruples. c. also doubles. d. is cut in half. I think C, but don't understand it

    asked by Kaashif
  42. Maths

    A line has Cartesian equations given by x-1/3=y+2/4=z-4/5 a) Give the coordinates of the point on the line b) Give the vector parallel to the line c) Write down the equation of the line in parametric form d) Determine the Cartesian equation of the plane

    asked by Ivory
  43. physics

    what is the Doppler effect? Can someone explain to me in simple terms please?

    asked by anonymous
  44. Maths

    a) Express f(theta) = 4cos theta - 6sin theta in the form r cos(theta + alpha) b) Hence find the general solution of the equation 4cos theta - 6sin theta =5 c) Hence, find the minimum value of the function 1/4+f( theta)

    asked by Becky
  45. Math

    Please Do This And Explain It . Simplify without using calculator leaving your answer in surd form. sin 480 - cos 765 ........................................ tan 225- cos(- 330)

    asked by The Okome A . O
  46. Math

    The interior angle of a regular polygon is 200 more than 3 times the exterior angle. Find the number of sides of the polygon.

    asked by Nikki
  47. Life orientation

    Critically discuss six ways in which individuals, groups and the broader south African community can be influenced by human rights violation

    asked by Nhlamulo
  48. Maths

    A 40m Deep Well With Radius 3.5m Is Dug And The Earth Taken Out Is Evenly Spread To Form A Platform Of Dimensions 28m By 22m.Find The Heiht Of The Platform.

    asked by Shewit
  49. Maths

    A Glass Cylinder With A Radius Of 7cm Has Water Up To A Heiht Of 9cm.A metal Cube Of 5.5 Cm Edge Is Immersed In It Completly.Calculate The Height By Which The Water Rises In The Cylinder.

    asked by Shewit
  50. Mathematics

    City y is 200km and in the direction of 048 from city x. City x is 80km and in the direction of 108 from city y. Find the distance of city z from city x and the bearing of city x from z

    asked by Adeniyi
  51. calculus II

    Test the series for convergence or divergence.∑from n=1 to ∞ ((e^n) /n^2) what test should I use?

    asked by Anonymous
  52. english

    what are The Epithet Structure of Nominal Groups (Noun Phrases)

    asked by alex
  53. Math

    Prove That Cos3A = 4Cos A - 3Cos A

    asked by Gabriel Gad
  54. Math

    The 8th term of a linear sequence is 18 and the 12th term is 26.find the first. The common difference the 20th term

    asked by Bibi
  55. Physics

    The helicopter view in the figure below shows two people pulling on a stubborn mule.(a).find the single force that is equivalent to the two forces shown.(b).find the force a third person would have to exert on the mule to make the net force equal to

    asked by Alice
  56. Maths

    Two buses leave a city at the same time,one going north and the other east.The north bound bus travels 10km/hr faster than the east bound one.If they are 250km apart after 5hours,What is the speed of each bus?

    asked by Faith
  57. chemistry

    i need help to do this and to write this out. 2.0 L of a 6.0 M HCl solution is added to water so that the final volume of 6.0 L.

    asked by ashlyn
  58. math

    Find the midpoint of line segment MN, where M is (16, -4) and N is (2, 10).

    asked by Anonymous
  59. history

    what was the reason of the first crusades? A.the pope called for the destruction of the eastern Orthodox church at Constantinople B.When the Seljuk Turks took control of the Holy Land, it became more dangerous for Christians to travel there C. Muslim

    asked by Rachel
  60. English speech

    English is the language of opportunity, why bother to teach indigenous languages

    asked by khanyisile
  61. Physics

    A Mass Of 2.0kg Is Hung Off A Spring,which Extends 2cm. Determine The Energy Stored In The Spring.

    asked by Abdisa
  62. life orientation

    law that protects citizens against xenophobia

    asked by michhelle
  63. Social studies.

    (Please check my answers!) 1. How did Rome unite its empire? Rome united its empire through the expanding of language and through their military. Instead of destroying the culture of locals that have been conquered, they rather kept up their military force

    asked by Kensie
  64. Science

    Identify ALL of the energy transformations that occur in the following scenario - A toaster is plugged into the wall and is in the process of making toast.

    asked by me
  65. History - Repost for RobloxBoy14

    This was originally posted on another student's thread. What connections existed between Gorbachev’s desire to improve the Soviet Union and the Soviet Union’s relationship to the United States? A. Gorbachev wanted to export manufactured goods to the

    asked by Ms. Sue
  66. Lo

    Six ways in which individuals , groups and the broader south African community can be influenced by human rights violation

    asked by Nompha
  67. Math

    The side of a rectangle are in the ratio 1:3 if the shorter side is 6cm. What is the length of the other side?

    asked by Abraham Martinez
  68. English

    i need hlep with The Inner Limits on readworks question nine it would be really helpful

    asked by brianna wactor
  69. Math

    When Cheryl goes mountain climbing, she rests every 15 minutes that she climbs if Cheryl’s combined time is 2 hours, how many minutes does she rest? Need the answer due tomorrow!!

    asked by Ivy
  70. English

    How does Twain use humor to present serious ideas? What does this reveal about Twain as a person?

    asked by riverdale lover
  71. English

    Traditional African marriage is any advantage for only not women?

    asked by Bongani
  72. life orientation

    Discuss six ways in which individual group and the broader south African community can be influence by human right violation

    asked by siphiwe
  73. calculus

    ! 2. Check the convergence property of the series ∑ √

    asked by calculus
  74. calculus II

    ∑from n=10 to ∞ (((-1)^(n-1))/(√(n)-3))

    asked by Anonymous
  75. Life orientation

    Suggest six recommendations on how to address xenophobia

    asked by Lungelo
  76. Economics

    Are there any current subsidy or welfare issues that are being discussed or addressed in parliament or municipalities?

    asked by Lilitha
  77. Tswana

    Kopa thuso ka tlhama ya setlhogo se:Setso se bopa botho jwa motho

    asked by Matlhogonolo
  78. Math

    Can someone check my answer. Classify a triangle that has side lengths 12,12 and 16? 1 scalene 2 equilateral 3 isosceles***** 4 right

    asked by Katie
  79. life oriention

    choose Three examples of human rights violation /discrimination and give reasons for your choice

    asked by felicia
  80. ANSWERS to Unit 2B Energy Unit test

    Unit 2B Energy Test 2.0: 38 points Total points 19/38 HERE ARE THE ANSWERS TO THE MODIFIED UNIT 2B UNIT TEST ANSWERS! DONT USE MY ANSWERS USE THE CORRECT ANSWERS! i may have gotten a bad grade but hopefully you wont

    asked by me
  81. life orientation

    What are the ways in which individuals, groups and broader south african community can be influenced by human rights violation?

    asked by Frank
  82. Math

    Find the constant of proportionality 2 90 3 135 5 225 6 270

    asked by Amilia
  83. life orientation

    5 examples of human rights violation/discrimintion and give some reasons

    asked by Maemu muthaphuli
  84. life orientation

    six suggestions on how to address the examples of human rights violation

    asked by munarini ntanganedzen
  85. Math

    I been stuck on this assignment since yesterday and I need some to help explain this to me and provide steps so I can come to the conclusion myself, thank you! For problems 1-4 solve the given system of equations using either substitution or elimination.

    asked by Badatmath
  86. English

    What's a group of similar things called

    asked by Anonymous
  87. chemistry

    A sample of 30.695 g of limestone (calcium carbonate) is heated at high temperature and decomposes according to the calcination reaction After a warm-up, the limestone suffered complete decomposition and after the cold was weighed and indicated 30.14 g .

    asked by damon
  88. Maths

    What is the bearing of an aircraft flying in 75*

    asked by Christine
  89. SS

    Which of the following do Australia and New Zealand have in common with the United States? A. The constitution of each country includes a bill of rights. B. The governments of all three countries have a federal structure. C. All three countries are

    asked by nebula🌌
  90. Math

    Evaluate the following definite Integral ∫x * ln(x) dx from 1 to e^(2) I used the DI method which gave me D I + ln(x) x - 1/x (x^2)/2 = (ln(x)*x^(2))/2 - ∫ 1/x * x^(2)/2 = (ln(x)*x^(2))/2 - ∫ x/2 = (ln(x)*x^(2))/2 - x^(2)/4 + C (ln(x)*x^(2))/2 -

    asked by Howdy
  91. social studies

    why did the slave trade change dramatically in the americas in the mid 1500's

    asked by Anonymous
  92. Math

    Eddy has1 blue ball,3 yellow balls, and 4green balls. What fraction of his balls are yellow?

    asked by Eddy
  93. Math

    If a standard number cube is rolled what is the probability or it landing on a number that is less than 5 write your answer as a percent

    asked by Makayla
  94. Math

    P is 49km away from q on a bearing of 135°.z is 64km away from R on a bearing of 225°find the distance of z from q and bearing of z from q

    asked by Abdullahi fatimah
  95. government

    Which language of the Fifth Amendment was addressed in the Miranda case? A. “nor shall private property be taken for public use” B. “except in cases arising in the land or naval forces” C. “unless on a presentment or indictment of a Grand Jury”

    asked by dbh
  96. Math

    Hello! I have been learning about proving identities and can do simple ones but lately I have been really struggling. I am currently stuck on this problem. cos(A-B)/tan(A)+cot(B) = sin(B)/sec(A) I managed to get to: cosAcosB-sinAsinB/(sinA/cosA) +

    asked by Jenny
  97. Math

    Each serving of oatmeal is 8 ounces. How many servings are in a 5-lb bag of oats

    asked by Monica
  98. Science

    1. Shanelle is in a stationary truck with her mom, waiting to pick her brother up from soccer practice. Which is the best reference point for her to use to determine when the truck starts and begins to move? A. The SUV that is parked next to them. B. A

    asked by Tristan Seymour
  99. History

    please someone help what significant effect did the pig war have? it decided the capital city of Washington territory it determined land use laws within Washington territory it settled the final boundary of Washington territory*** it split Washington

    asked by l ll ll lL
  100. Math

    Mrs. Lin brings 6 trays of hamburger buns to the barbecue. 2/3 of the trays have wheat buns. How many of the trays have wheat buns? Draw a diagram to solve the problem.

    asked by Dhivya
  101. Math

    Melonie wants to make a punch drink made with 2 1/2 gallons of orange juice,4 quarts cranberry juice,3quarts apple juice. How much punch will she make ?

    asked by Sally
  102. Science

    Lesson 9 : energy and environment unit test Which of the following describes an example of land reclamation

    asked by Kitty paws 🐱
  103. Math

    Is there are 56 white marbles in a jar and there are 7 times as many white marbles as blue marbles in the jar write and solve an equation to find the number of blue marbles

    asked by Nico Albano
  104. Physics

    Yellow light of wavelength 5.5 x 10^-7 m is incident normally at a diffraction grating with 300 lines per mm. Calculate the angle between the first-order and second-order maxima.

    asked by Jacob
  105. Math

    A plane is travelling 20km/hr heading north while the wind velocity is 60km/hr north 30 degrees east, what is the distance travelling by the plane after 2 hrs

    asked by Royet
  106. Physics

    What is the pressure change in methyl alcohol (SG =0.791) flowing from 4.0 cm diameter pipe to a 1.5 cm diameter pipe if the velocity in the larger pipe is 0.40 m/s?

    asked by Justin
  107. math

    A rectangular truck has a volume of 26,880 cubic inches. The truck is 4 feet long by 28 inches wide. What is the trucks height?

    asked by cadence elliott
  108. Social Studies

    How are the governments of Australia and the Pacific islands similar? How are they different?

    asked by Min Yoongi's Wife
  109. language art

    do the statistics and numbers support asimov's opinion that there is more to the universe than we see? explain your answer.

    asked by caleb
  110. Life orientation

    Define and describe the human right violation about xenophobia

    asked by Anonymous
  111. Physics

    Enchong is playing with a rope tied to a vertical post, such that waves on the rope move at a rate of 0.720 m/s. He discovers frequencies at which he can oscllate his end of the rope so that a point 45.0 em from the post does not move. What are these

    asked by Mark
  112. government

    What does the free exercise clause guarantee about religious freedom? A. the right to refuse service to those holding different religious beliefs B. the right to conduct any religious practice in the United States C. the right to hold any religious belief

    asked by dbh
  113. Math

    a Ferris wheel has 12 cars that are equally spaced around the center . What the measure of the angle formed between each of the arms that hold the Ferris wheel

    asked by blue red yellow