Questions Asked on
April 17, 2020

  1. Physics

    After being closed for a long time, the switch S in the circuit shown in the figure below is thrown open at t = 0. In the circuit, emf = 24.0 V, RA = 4.10 kΩ, RB = 6.80 kΩ, and L = 608 mH. (a) What is the emf across the inductor immediately after the

  2. Programming

    in the following structural description which block is digital systems

  3. physics

    explain briefly why a razor blade floats in water and when soap solution is carefully added to the water it sinks

  4. Maths

    A hemispherical tank of diameter 10cm is filled by water issuing from a pipe of radius 20cm at 2m per second . Calculate , correct to three significant figures in minutes it takes to fill the tank

  5. world history

    Review the passage. “Not through speeches and majority decisions will the great questions of the day be decided … but by iron and blood.” –Otto von Bismarck, 1862 Which most accurately examines how Bismarck applied the principles expressed in the

  6. chemistry

    What is the Ksp of Lead II Fluoride if the lead and fluoride ions have molecular concentrations of 4.8 x 10-4 M and 8.7 x 10-3 M respectively in a saturated solution at 25oC? Please show work. I don't even know where to start.

  7. Physics

    A 2.9 kg block slides with a speed of 2.1 m/s on a friction less horizontal surface until it encounters a spring. (a) If the block compresses the spring 5.6 cm before coming to rest, what is the force constant on the spring? (b) What initial speed should

  8. algebra

    The number of pieces of popcorn in a large movie theatre popcorn bucket is normally distributed, with a mean of 1720 and a standard deviation of 20. Approximately what percentage of buckets contain between 1680 and 1760 pieces of popcorn? a.approximately

  9. Physics

    At one instant, a current of 8.0 A flows through part of a circuit as shown in the figure below. Determine the instantaneous potential difference between points A and B if the current starts to decrease at a constant rate of 1.0 ✕ 102 A/s. (Assume that R

  10. Math

    Suppose that X, Y, and Z are independent, with E[X]=E[Y]=E[Z]=2, and E[X2]=E[Y2]=E[Z2]=5. Find cov(XY,XZ).

  11. probability

    Let 𝑋 and 𝑌 be independent positive random variables. Let 𝑍=𝑋/𝑌 . In what follows, all occurrences of 𝑥 , 𝑦 , 𝑧 are assumed to be positive numbers. 1. Suppose that 𝑋 and 𝑌 are discrete, with known PMFs, 𝑝𝑋 and 𝑝𝑌 .

  12. Math

    A right prism whose bases are regular nonagons. Find the measure of the dihedral angle between adjacent lateral faces.

  13. Math

    (9,270) What are the rectangular coordinates of the same point

  14. Math

    Kiera has two pieces of rope, one 120 inches long and the other 64 inches long. For a project, she needs to cut them up to produce many pieces of rope that are all of the same length, with no rope left over. What is the greatest length, in inches, that she

  15. History

    Which of the following best characterizes interest groups in Texas?

  16. Math

    Laura is three times as old as Luci. In 5 years, the sum of their ages will be 30. What are the current ages of Laura and Luci? I need help!!

  17. Physics

    What will be the amount of energy released when 0.5kg of uranium is burned completely

  18. Physics

    A car is uniformly accelerated at 1.10m/s 2 for 12.0s. If the final speed of the car is 33.4m/s, find the initial speed.

  19. English

    A piece of writing following the Rogerian method will most likely adopt a __________ tone. A. fair, non judgmental B.agreeable, likeminded C. combative, nonconcillatory D. objective, disinterested

  20. English

    Hi! I would like to know some PLOT TWISTING events in the story Walk Two Moons! If I could have at least one example directly from the story I will be very great full! Thanks!

  21. Math

    Determine the value of k if 2x+1 is a factor of kx^3+7x^2+kx-3

  22. Math

    Julia earned money babysitting. She spent 1/4 of the money on lunch. She spent 1/2 of the money on a DVD, and she saved $4. How much money did Jia spend on the DVD?

  23. chemistry

    The following reaction: SO2 (g) SO3 (g) + NO (g) having reached a state of equilibrium, was found to contain 0.40 M SO3, 0.30 M NO, 0.15 M NO2, and 0.20 M SO2. Calculate the equilibrium constant for this reaction. Describe the direction ad extent of a

  24. Math

    1. The length of a micrometer is approximately 0.00003937 inch. How would you express this in scientific notation? A. 0.3937 * 10^-4 ** B. 3.937 * 10^-5 C. 39.37 * 10^-6 D. 3937 * 10^-8 2.Write each number in either scientific notation or standard

  25. algebra 2

    You are depositing $1000 in a savings account at 6% annual interest rate, compounded continuously. What will the balance be after 5 years? Round your answer to the nearest hundredth.

  26. Math

    Determine the measure if the interior angle at vertex A. ———————- 4x 4x 4x 4x 2x 2x

  27. Math

    For y = 25, what is the estimated value of x, from the following data x 11 12 15 16 18 19 21 y 21 15 13 12 11 10 9

  28. Math

    Find the arc length and leave answer in terms of pi. 13.An arc with a central angle is 184 degrees and radius 8m

  29. Physics

    A series RC circuit contains two resistors and two capacitors. The resistors are 49 Ohms and 56 Ohms. The capacitors have capacitive reactances of 80 Ohms and 40 Ohms. When calculating the circuit values, the total resistance used is

  30. Math

    Alex has 7 pizzas he wants to share equally with 10 much pizza will each friend revive

  31. math

    A spinner is divided into equal parts 1 – 5. George spun the spinner 30 times. A table of outcomes is shown. Based on the table, what is an experimental probability of the spinner landing on an even number?

  32. chemisty

    If our actual yield from this reaction was 12 grams of sodium chloride (NaCl), what would our percent yield for this reaction be?

  33. social studies

    1 Which statement about Lester Maddox is not true 2 Mr.Robertson is a segregationist which statement most likely reflect his beleife 3 Based on the statement above,why did some Americans relocate from the Northeast and Midwest to settle in Georgia. 4 What

  34. science

    Aquatic plants that float on water in a pond can reproduce rapidly, covering the surface of the pond. These aquatic plants can impact the oxygen levels in the pond when when they die. Sometimes the oxygen levels are so severely impacted that there is no

  35. Science

    Why are Calgary's water treatment plants located upstream from its wastewater treatment plants?

  36. Math

    Insurance companies make profit by: A. charging consultation fees to the insured. B. charging underwriting fees from insurance agents. C. paying out less than the sum of the premiums and the earnings on them. D. giving less than the amount mentioned in the

  37. social studies

    why did the growth of trade and industry weaken feudalism

  38. Science

    What 3 things bend/refract light and how? Also, what three things reflect light? Thanks if you can answer!

  39. Geometry

    I use the construction tool a lot in my class, and I was wondering how to use it to construct a rectangle that has a length that is two times the measure of its width. Please help me, and kind regards. - John

  40. Math

    when you use a (____)you pay for purchases later 1 credit card

  41. Math

    Hi me again. a (_____) name includes information about how well you manage money 1 credit card 2 checking account 3 work study programs 4 credit history

  42. English

    what do trees symbolize in the poem "almost summer sky"

  43. Geography

    People empowered to enforce a city's laws are the

  44. home life

    what is home life about? i saw it in an elective option and i don't know what you do in it, but it seems interesting

  45. physics

    3. A metre rule is balanced by masses 100g and 25g hanged at 0cm mark and 100cm mark respectively. If the metre rule has a mass of 40g, determine the position of the pivot for the system to be balanced. (3marks)

  46. math

    How do i plot this graphic quadratic equation y=x^2-8x+12.I have tried but i end up failing.Please help me and explain in detail plz help out.

  47. Science

    Why does beta particle has different notation of nucleon number in spontaneous decay of tritium vs. beta decay of uranium 237?

  48. Social Studies

    Describe the means by which Spain attempted to defend and spread Catholicism at home and abroad. Can you provide any links that would help me answer this question?

  49. Social Studies

    Describe the contributions of Greek, Jewish, Muslim, and Renaissance scholars to the Scientific Revolution.

  50. Social Studies

    Explain how the Peace of Augsburg, the Edict of Nantes, and the Peace of Westphalia all strengthened secular rulers.

  51. Math

    three variable are missing a+b+c=0, a²+b²+c²=3, and a⁴+b⁴+c⁴=? And a^5+b^5+c^5=10

  52. Physics

    At one instant, a current of 8.0 A flows through part of a circuit as shown in the figure below. Determine the instantaneous potential difference between points A and B if the current starts to decrease at a constant rate of 1.0 ✕ 102 A/s. (Assume that R

  53. Math

    You need to feed your pet crab who lives under water. To do you, you will attach the food (which we assume has 0 mass) to the bottom of a cylindrical buoy dropped (at rest) from a height of 0.5 meters. The buoy must be made from a material which has 1/3rd

  54. Math

    A batting cage is designed by gluing a baseball to a spring-mass-dashpot system so that the ball is returned to the batter. The weight has mass 0.5kg which is attached to a spring which is stretched 2 meters by a force of 8 Newtons. Suppose the ball starts

  55. Math

    Consider an undamped spring-mass system with mass 3 kg and a spring which is stretched 1 meter by 5 Newtons. Suppose an oscillating force 3 cos(ωt) is acting on the system. What value of ω causes resonance? For this value of ω, find a formula for x(t),

  56. PE

    Mention four facts and fallacies about female participation in sports

  57. Math

    Consider a mass-spring-dashpot system with mass 5kg, a spring which is stretched 3 meters by a force of 10N, and a dashpot which provides 4N resistance for each m/s of velocity. The mass is also acted on by a periodic force 5 cos(ωt) for some number ω.

  58. Maths

    1/(√7-1)-1/(√7-3)=a+b√c [√7-3-(√7-1)]/(10-4√7)=a+b√c (1-3)/(10-4√7)=a+b√c -2/2(5-2√7)=a+b√c -1/(5-2√7)=a+b√c -(5+2√7)/(25-28)=a+b√c -(5+2√7)/-3=a+b√c 5/3+2/3√7=a+b√c a=5/3 b=⅔ c=√7/3 Is this correct

  59. Math

    A right hexagonal prism is enlarged by a scale factor of 5.7 a) Determine the value of Volume of Large Prism over the Volume of the small Prism Do Not Round b) Determine the value of Surface area of Large Prism over the Surface area of Small Prism Do Not

  60. Physics

    Why is electric force more than electric field strength?

  61. Physics

    A stream of water strikes a stationary turbine blade. The incident water stream has a velocity of +18.0 m/s and the exiting stream has a velocity of –18.0 m/s. The water strikes the blade at a rate of 25.0 kg/s. Find the net force acting on the water and

  62. Math

    Lorie spent 3/5 of her money on gifts for Luann and Joan. Luann’s gift cost 3 times as much as Joan’s gift. If Lorie had $12 left after she made her purchases, how much did Luann’s gift cost?

  63. Algebra

    Simplify the product using the distributive property. (3p + 2)(5p - 1) simplify the product (2y - 5) (3y + 1) can someone help point me in the right direction, with this COVID-19 going around i havent had much time for school, and now it started back up

  64. physics

    1. The volume of a gas is 10.0 liters and its pressure is 1.5 atm. If the pressure is decreased to 0.75 atm, what is its new volume? 2. The pressure of a gas is 100.0 kPa and its volume is 500.0 ml. If the volume increases to 1,000.0 ml, what is the new

  65. Math

    The sample space for a roll of two number cubes is shown in the table (1,1) (1,2) (1,3) (1,4) (1,5) (1,6) (2,1) (2,2) (2,3) (2,4) (2,5) (2,6) (3,1) (3,2) (3,3) (3,4) (3,5) (3,6) (4,1) (4,2) (4,3) (4,4) (4,5) (4,6) (5,1) (5,2) (5,3) (5,4) (5,5) (5,6) (6,1)

  66. math

    Which describes the system of equations below? y= 4x -4/9 y= 7/2x +3/7

  67. chemistry

    Please help!! Predict whether N2(g) + 3H2(g) ⇌ 2NH3(g) is spontaneous at 773.15 K. Assume: ∆H = -92.22 kJ and ∆S = -198.75 J/mol·K. Describe all components. Show work please!!

  68. Math

    Nina is putting bottles and cans in bags to take to a recycling facility. She puts bottles in bags of 12 and cans in bags of 15, with no partially filled bags. While counting up the cans and bottles, an employee at the recycling facility points out that

  69. math

    what is the algebraic expression for the following word phrase the quotient of 7 and the sum of 9 and z a. 7/9+7z b.7(9+z) c.7/9-z d.7/9+z

  70. Math

    Terry’s monthly allowance is $48. She puts 1/2 of her allowance into savings and gives 3/4 of the remaining money to a local charity. How much money does Terra have left for herself each month?

  71. Math

    Jill is making bread for a large group of people. 5/6 of a pound of flour only accounts for 3/7 of the recipe. How many pounds of flour is needed for the entire recipe?

  72. English

    list some important ideas that Walk Two Moons include. Why did you choose those ideas? I would say some important ideas are the characters maybe? I am very confused. Any advice or help on this? It would be much appreciated! :-)

  73. History

    What is the “crack problem” Gorbachev faced in the late 1980s? Why did he face this problem?

  74. math

    what is the algebraic expression for the following word phrase the quotient of 3 and z a.3/z b.3/3z c. 3z d. 3- z

  75. algebra

    Rearrange terms into the slope-intercept form.

  76. Physics

    Determine the impact speed of an out of control satellite initially at rest falling from an altitude of 5×10^5m above the Earth’s surface. Can someone please guide me on how to complete this problem. I don't understand how to apply escape velocity to

  77. English

    Diagram the Following Sentences. Omit the ordinary prepositional phrases and single-word modifiers. We Found what we needed for the play. Terry, does Charles plan to give Nancy the money after class?

  78. Physics

    Which has higher wavelength 380nm or 780nm?

  79. Math

    Jill made 12 bows. She used 1/3 meter of ribbon for each bow. How much ribbon did she use altogether? a.3/z b.3/3z c. 3z d. 3- z

  80. Social Studies

    Use examples from the history of Texas and the experiences of the Mormons to illustrate how geography, conflict, and new ideas change the way people live.

  81. Social studies

    How did Lincoln's election split the nation?

  82. Math

    There is 1/2 of a candy bar that needs to be divided evenly among 3 children. What fraction of the total candy bar will each child receive?

  83. science

    planets in our solar system travel in their own orbital paths around the sun. what causes the planets to continuously orbit the sun instead of floating away into space? help please

  84. Math

    Find the circumstance. Leave your answer in terms of pi. 12. A semicircle with a diameter of 25 mi

  85. PE

    Which sport does not utilize dribbling?

  86. Social studies

    How did each side argue for and against the rights of states to secede from the Union?

  87. Math

    A factory that makes gaming systems selects 100 random systems to check for defects. They find that 3 of the gaming systems were defective and had to be discarded. How many gaming systems out of 1500 should the factory predict will be defective?

  88. math

    Given: ΔBUG ~ ΔBAN, BU = 8 in , UA = 4 in and AN = 24 in. Find the length of GU.

  89. Math

    If a data set has many outliers, which measure of central tendency would be the BEST to use? A) mean B) median C) mode D) range

  90. math

    A 13​-foot ladder is placed against a vertical wall of a​ building, with the bottom of the ladder standing on level ground 12 feet from the base of the building. How high up the wall does the ladder​ reach?

  91. English

    Dot a dot dot dot a dot dot Spotting the windowpane. Spack a spack speck flick a flack fleck Freckling the windowpane. A spatter a scatter a wet cat a clatter A splatter a rumble outside. Umbrella umbrella umbrella umbrella Bumbershoot barrel of rain.

  92. Social studies

    How did each side argue for and against the rights of states to secede from the Union?

  93. Math

    What is the quotient of 1/4÷4?

  94. Math

    What is the product of -7 and -12? -84 84 -74 74 PLzzz answer asap!!

  95. biology/science

    Aquatic plants that float on water in a pond can reproduce rapidly, covering the surface of the pond. These aquatic plants can impact the oxygen levels in the pond when when they die. Sometimes the oxygen levels are so severely impacted that there is no

  96. Science

    White nose syndrome (WNS) is a disease found in bats. The disease, first detected in bats during the winter of 2006, is characterized by the appearance of a white fungus on the nose, skin, and wings of some bats, which live in and around caves and mines.

  97. Math

    Name the point with the given coordinates (4, -2).

  98. social studies

    How did the Democratic Party’s support of the Civil Rights Act of 1964 lead to a change in its membership?

  99. Spanish

    how do you say the shoe store or shoe store in Spanish

  100. math

    Solving Equations with Integers which of the following could be represented by -8 A.a drop of 8 meters B.8 T-shirts C.sea level in 8 places of the world D.8C above 0 PLZZ I NEED HELP FAST !!!!!!!!!!

  101. Math

    in a football game, a penalty of -15 yards was applied to a gain of 43 yards, what is the net gain? 58yards 32yards 28yards 18yards

  102. Math

    A full bottle hold 1/4 gallon of juice if 3/5 of the juice has been poured out how much juice is left in the bottle?

  103. Math

    Please help find the next 3 numbers in the pattern. 3,2,5,7,19,26 We can’t figure out the pattern.

  104. Math

    Determine an equation in simplified form, for the family of quartic functions with zeros 3 (order 2) and -2±√3

  105. English

    Consider the feminist principles present in “A Room of One’s Own” by Virginia Woolf. How do you think Woolf’s ideals influenced modern feminist thought? Write 3–5 sentences comparing feminism in the time of Virginia Woolf and today. What has

  106. math

    Choose 5 ordered pairs whose first component is the opposite of the second component. Plot these points and connect them. What kind of figure do you get? In what quadrants does the figure lie?

  107. geography

    Why is the Korean Peninsula considered one of the most dangerous regions of the world

  108. Algebra

    Solve 4x+8^2=0