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  1. physics 102

    The output voltage of an AC generator is given by Δv = (180 V) sin (70πt). The generator is connected across a 13.0-Ω resistor. (a) By inspection, what is the maximum voltage? V (b) By inspection, what is the frequency? Hz (c) Find the rms voltage

  2. chemistryyy

    Germanium has a cubic unit cell with a side edge of 565pm. The density of germanium is 5.36g/cm^3. What is the crystal system adopted by germaium.

  3. life orientation

    two ways in which media could ensure access of information to all communities

  4. chem

    The crystal structure of lithium sulfide (Li2S) is pictured here. (Intro 1 figure) The edge length of the unit cell is 5.88*10^2^2 pm. i guess it is FCC ( face cenred cubic) 1-- What are the coordination numbers of and Li^+ and S^2- in the lithium sulfide

  5. Language Arts

    Which of the following describes advertising?(1 point) an underlying point of view a true story using facts that can be verified an exchange of information, news, or ideas a promotion that is paid for by a company

  6. Life orientation

    3 ways how social media platforms are abused

  7. Biological Evolution Evidence Quick Check

    (QUESTION 1) Flowering plants have common ancestors with other plants and plant-like organisms. The table below shows the last common ancestor shared between flowering plants and two other types of organisms. A scientist compares the amino acid sequences

  8. chemistry

    Which of the following is the correct form of the equilibrium constant expression for the following reaction?A(aq) + B(aq) ⇄ D(aq) + E(aq)

  9. physics

    The 90-kg man, whose center of gravity is at G, is climbing a uniform ladder. The length of the ladder is 5 m, and its mass is 20 kg. Friction may be neglected. (a) Compute the magnitudes of the reactions at A and B for x =1.5 m. (b) Find the distance x

  10. algebra 2

    A drama club is planning a bus trip to new york city to see a broadway play. the cost per person for the bus renatl varies inversely as the number of people going on the trip. It will cost $30 per person if 44 people go on the trip. How much will it cost

  11. L.A

    Which option describes key words that are used to conduct online research?(1 point) search terms effective terms search engines accurate words Which term describes a program that uses key words to search for and identify related information?(1 point)

  12. Geometry - help please

    AB is tangent to circle O at B. The diagram is not drawn to scale. If AB = 6 and AO = 11.7, what is the length of the radius (r)? Round the answer to the nearest tenth. 5.7 8.9 10.0 13.1

  13. physics

    A toaster uses a Nichrome heating wire. When the toaster is turned on at 20°C, the initial current is 1.50 A. A few seconds later, the toaster warms up and the current has a value of 1.22 A. The average temperature coefficient of resistivity for Nichrome

  14. Language Arts 7 B: Mass Media

    Which of the following describes mass media? A: tools used to get information to the public B: video and audio created for entertainment C: information produced for private use D: verbal communication between small groups

  15. Chemistry

    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 compounds would

  16. Science

    Which statement explains how the charges on objects determine the electric force between them?(1 point) Objects with positive charges attract each other, and objects with negative charges repel each other. Objects with positive charges attract each other,

  17. language arts

    Which of the following defines copyright?(1 point) the use of others’ work without permission the right to copy work created by someone else a legal protection given to creators of original work a list of sources used by the author

  18. Math Help!

    Use Euler's Formula to find the missing number. Vertices: 13 Edges: 26 Faces: ? A. 14 B. 15****? C. 16 D. 17 What is the maximum volume of a square pyramid that can fit inside a cube with a side length of 24 cm? A. 2,304 cm3 B. 4,608 cm3 C. 6,912 cm3****?

  19. Pre Algebra

    Which polynomial does the model represent? –x³ + 2x² – 3x + 2 x² + x – 2 –x² – x + 2***** –x² + x – 2 Can someone please help me @Ms.Sue @Reed @WriteTeacher

  20. Life Orientation

    What role do the media have in reporting human rights violations in a responsible manner?

  21. MATH

    For questions 1 and 2, write each expression using a single exponent. 1.x^9 --- x^2 A.x^11****** B.x^7 c.7 D.x^5 2. h^14 ----- h^3 A. h^-9 B. 1 ---- h^9 C.h^19***** D. h^9 Are these the correct answers or do I have to subtract the exponents? Thank you

  22. integral calculus

    a rectangular plate 12ft long and 8 ft wide is submerged vertically with the longer edge in the surface of the water. Find the force on one side of the plate.

  23. physics

    A solid uniform 45.0 kg ball of diameter 32.0 cm is supported against a vertical frictionless wall using a thin 30 cm wire of negligible mass. (a) make a free body diagram for the ball and use it to find the tension in the wire and (b) how hard does the

  24. biology

    Biological Evolution Unit Test 1. Which competition is direct and interspecific? *a hyena and cheetah fighting over a carcass 2. Suppose the mosquito population in an area increases. Which organism may also experience a population increase? *bats 3. A

  25. Life Orientation

    what role and responsibilities does the media have in reporting human rights violations in a responsible manner in a democratic society?

  26. help algebra??

    stillwater junior high divides students into teams taught by a group of teachers the table shows the number of students in each team. imgur . com/x7kghII (picture of student numbers) The principle uses a computer to randomly select the name of a student

  27. chemistry

    1. Which example has particles that can be drawn closer to occupy smaller volume? a. fruit juice b. block of wood c. air inside the syringe d. ice cube 2. Which of the following phenomena does NOT involve the application of gas pressure? a. burning fuels

  28. English

    1. Which of these lines contains the clearest example of dialect in poetry? A.) "I'll get a blessin' wi' the lave..." B.) "By the stream & o'er the mead..." C.) "To such a deep delight 'twould win me..." D.) "But oft, in lonely rooms, and 'mid the din..."

  29. Calculus please help

    Find the centroid of the area bounded by the parabola y=4-x^2 and the x-axis A.(0,1.6) B.(0,1.7) C.(0,1.8) D.(0,1.9)

  30. research writing as a process

    Question 1 What is one of the first steps in a research project? to think about the purpose of the research project. to consult a writing center tutor to formulate a thesis statement to find all the research you'll need Question 2 Which of the following is

  31. science

    Agriculture, Industry, and Water Resources Quiz Which accounts for the highest water withdrawals in the United States?(1 point) thermoelectric power industrial uses irrigation* mining Which is the most prevalent source of agricultural water pollution?(1

  32. Physical Science

    This is the Final for the semester enjoy and easy 100%:) 1.A person uses a screwdriver to turn a screw and insert it into a piece of wood. The person applies a force of 20 newtons to the screwdriver and turns the handle of the screwdriver a total distance

  33. History

    What were the main concerns of Jerry Falwell and his followers in the Moral Majority? pls I need them fast the quiz is clintons legacy

  34. Calculus

    A building is to be braced by means of a beam which must pass over a wall. If the wall is 3 3/8 feet high and stands 8 feet from the building, find the shortest beam that can be used.

  35. physics

    In the 1950s, an experimental train that had a mass of 3.30 104 kg was powered across level track by a jet engine that produced a thrust of 4.90 105 N for a distance of 600 m. (a) Find the work done on the train. 1 J (b) Find the change in kinetic energy.

  36. physics

    What is the required resistance of an immersion heater that will increase the temperature of 1.5kg of water from 10*C to 50*C in 10 min while opperating at 120V? The answer is 24.2 ohms. I don't know what equation to use to solve this question. Please help

  37. Biology

    Fossil Record and Embryology Quick Check: Q: Which statement best describes the importance of wisdom teeth to human evolution? A: They are vestigial structures that once performed an important function for human ancestors. Q: Which statement is true? A:

  38. Biology B Semester Exam

    What is a benefit of using a model? (Answer) provides a visual guide for abstract concepts Which term is used to describe a two-phase anabolic pathway in which light energy is converted into chemical energy? (Answer) photosynthesis Prokaryotic cells that

  39. Evolution of the Influenza Virus Quick Check

    Evolution of the Influenza Virus Quick Check: (the answers are surrounded by these stars → ✧✧) Q1) Why did 40% of the human population evolve to tolerate lactose? ✧ Within cultures that rely on milk-producing animals, individuals who tolerated

  40. Science

    Suppose that the mirror is moved so that the tree is between the focus point F and the mirror. What happens to the image of the tree? (1 point) The image appears shorter and on the same side of the mirror The image appears taller and on the same side of

  41. Life orientation

    Evaluate the extent to which the following institution have supported communities affected by human rights violations 1 government 2 community 3 religious organization

  42. science

    Consider the following scenario: A drought hits the habitat of a semi-aquatic bird population. All ponds dry up, and fish populations decline. There are two groups of birds in the population that differ in leg length and diet. Long-legged birds eat fish,

  43. Language Arts

    Which option tells what it means to draw conclusions from your research? A) complete a detailed investigation of a topic B)read through sources multiple times C)make inferences based on the information D)search for different types of sources Please help

  44. Language arts

    Which is an example of a print source?(1 point) a website a magazine an e-book a video

  45. Algebra

    Is the relationship between the variables inthe table a direct variation, an inverse variation, both, or neither? If it is a direct or inverse variation write a function to model it x: 2, 5, 12, 20 y: 30, 12, 5, 3 A. Direct variation: y = 15x B. Inverse

  46. Math

    Two boys decided to buy a computer. The second boy had 5/6 of the money the first had. The first boy had 7/8 of the price of the computer. Together they had $696.00 more than they need to pay. What was the price for the computer?

  47. Algebra 2

    What values for theta(0

  48. Math

    Yo must be under 12 years of age to order from the kid's menu at a retraurant a < 12 a < 12 ( theres a underscore at < ) a > 12 a > 12 ( another underscore here )

  49. Math Help Please

    What are the ratios for sin A and cos A? The diagram is not drawn to scale. Triangle Description- AB = 29 AC = 20 BC - 21 A. sin A = 20/29, cos A = 21/29 B. sin A = 21/29, cos A = 20/21 C. sin A = 21/29, cos A = 20/29****? D. sin A = 21/20, cos A = 20/21

  50. Statistics Range, Variance, and Standard Deviation

    26. Flight Data: Find the range, variance, and standard deviation. Express answers using appropriate units, such as "minutes." Refer to Data Set 15 in Appendix B and use the times required to taxi out for takeoff. Flight 1 1 1 1 1 1 1 1 1 1 1 1 3 3 3 3 3 3

  51. math Study guide 3

    1. The table shows the results of spinning a four-colored spinner 50 times. Find the experimental probability and express it as a decimal. P(not red) = ? red | blue | green | yellow ----------------------------------------- 20 | 10 | 9 | 11 (1 point) a 0.6

  52. Algebra 2

    What is the theoretical probability of rolling a sum of 6 on one roll of two standard number cubes? A. 1/9 B. 5/36 C. 1/12 D. 1/6

  53. Algebra

    the table shows the results of a survey of college students. find the probability that a student's first class of the day is a humanities class, given the student is female. First class of the day for college students male female humanities 70 80 science

  54. Math help

    You roll a standard, six sided number cube. what is the probability of rolling a prime number or a number greater than 2.

  55. English help

    1. In a citation within a Works Cited page, which of the following should NOT be in italics? A. the title of a book B. the title of an editorial********* C. the title of an encyclopedia 2. You finished writing a research paper on the way modern technology

  56. English - help Poe

    1. The words "jingling, tinkling" in line 14 of "The Bells" are NOT an example of ? A.repetition ***** B.assonance C. consonance 2. Which if the following sentences uses an adjective in the positive degree? A. The whole coast was beaten by harsh

  57. Physics

    A 1.2 kg object is moving with a speed of 8.0 m/s collides perpendicularly with a wall and emerges with a speed of 6.0m/s in the opposite direction perpendicular to the wall. If the object is in contact with the wall for 2.0m/s. What is the magnitude of

  58. Geometry

    46. Assume that lines that appear to be tangent are tangent. O is the center of the circle. Find the value of x. Figures are not drawn to scale. mO = 128° (1 point) 52 308 64 256

  59. 8need a function rh grade math

    a 154 lb person burns 420 calories per hr riding an exercise bike at 15 mph. Need a function rule to represent the total calories burned over time.

  60. communications

    2.Which of the following is NOT a technique for emphasizing material in a résumé? A. Presenting it in vertical lists B. Including it as part of a lengthy paragraph C. Offsetting it with white space D. Positioning it at the top of a page 1.) I think it's

  61. physics please respond

    A 16kg sled starts up a 28 degree incline with a speed of 2.4 m/s . The coefficient of kinetic friction is = 0.27. part a)How far up the incline does the sled travel? part b)What condition must you put on the coefficient of static friction if the sled is

  62. Physics (4)

    A 4.0-kg particle is moving horizontally with a speed of 5.0 m/s when it strikes a vertical wall. The particle rebounds with a speed of 3.0 m/s. What is the magnitude of the impulse delivered to the particle?

  63. cost accounting

    fixed cost relating to staging a concert are 350,000. variable cost per patron are $5.00. the selling price for a tickets $25.00. The blue Saints band has sold 23,000 tickets so far. How many ticket does the Blue Saints band need to sell to achieve net

  64. trigonometry

    A surveyor made two sections of the railroad bridge, both at 210 meters in length. Suppose that the maximum of elevation of each section is 75deg. When the bridge is closed, the water level is normally 13 meters below the bridge. a. When the bridge is

  65. English

    PLEASE HELP ASAP !! compare H.B from "Harrison Bergeron" and J.G from "Great Gatsby" by answering these questions 1 How are these characters similar? 2 How are they different? 3 How do you think these characters might interact if they had the opportunity?

  66. Evidence of Evolution Quick Check

    Which statement is true? (1 point) A. Fossils cannot provide information about life cycles and behaviors. B. Fossils cannot provide information about relatedness of life forms. C. Fossils can provide information about when life forms existed D. Fossils can

  67. Life orientation

    Give recent (2019.2021)examples of how this problem has displayed itself in your community

  68. Algebra 2

    Algebra 2 Unit 8 lesson 2, semester b exam part 1 (47 questions)

  69. Life orientation

    Give recent 2019 to 2021 examples of how this problem of gender based violence has displayed itself in communities

  70. ELA

    which of the following is another word for the main idea of a speech? A.message B. chronology C. medium D. audience

  71. biology

    does anyone have the Natural Selection Unit Test answers? i'm on my knees please

  72. Group behavior quick check

    Answers: Which piece of evidence would best support the argument for kin selection as a mechanism for the evolution of altruistic 1. A penguin protects its chick from seagulls* 2. Data collected from a controlled experiment that has been reproduced in

  73. Algebra

    Consider the infinite geometric series ∑^(∞)_(n=1) −4(1/3)^n−1 . In this image, the lower limit of the summation notation is "n = 1". a. Write the first four terms of the series. b. Does the series diverge or converge? c. If the series has a sum,

  74. Novel Study - Front Desk

    Where does Mia find the stolen car? (1 point) A. the shopping mall B. Mr. Yao's house C. the hotel parking lot D. Mr. Lorenz's house HELP PLS

  75. Physics

    Radioactive Decay Energy Quick Check Polonium has a large, unstable nucleus. Through which process is it most likely to become stable? gamma decay beta-plus decay beta-minus decay alpha decay(✔️) Which type of energy does alpha decay generate?

  76. Geometry Semester Exam

    Does anyone have the answers for Geometry B; Lesson 2, Unit 8 Semester Exam? Connections Academy. Listen, Dont answer with some unhelpful stuff or negativity, or telling me that yall dont help cheaters because jiskha wouldnt be a functioning website if

  77. Language Arts

    which source is likely the most credible?(1 point) 1) a recent research report published by a professor 2) a decades-old article from an encyclopedia 3) a speech given by a political candidate 4) an advertisement by a large online store I need help!!!

  78. science

    You and your Canadian pen pal enjoy talking about nature together. While your friend describes some birds that she saw today, you realize that one of the birds she described sounds like one you have seen in your home state of Indiana. You remember that all

  79. L.A

    Which phrase describes a speaker's intended audience?(1 point) the tone of voice used by a speaker the language used in a speech the person or group whom a speaker is addressing the location of where a speech is taking place. Plz help me!

  80. CALCULUS

    6. The hypotenuse of a right triangle is 20 cm. What is the maximum possible volume of the triangle in sq. cm

  81. Mathematics

    The sum of two numbers exceeds their product by one.Their difference is equal to their product less five. Find the two numbers.

  82. chemistry

    Which of the following correctly relates the two equilibrium constants for the two reactions shown? A + B ⇄ 2 C, K₁; 2 A + 2 B ⇄ 4 C, K₂.

  83. precalculus

    Lukalu is rappelling off a cliff. The parametric equations that describe her horizontal and vertical position as a function of time are x(t)=8t and y(t) = -16t^2+100 and . How long does it take her to reach the ground? How far away from the cliff is she

  84. geometry

    the polygons are similar but not necessarily drawn to scale, find the value of x bigger polygon has x-3, 8, and 16 smaller has 2.5, 2, 4

  85. English

    What image of Walt Whitman's "I Hear America Singing" is mostly conveyed through the repetition of the word singing? A. American laborers are all united in one song. B. American laborers are all different and sing their own individual song. C. American

  86. Geometry

    Directed line segment DE has endpoints D(-4,-2) and E(1,8). Point F divides DE such that DF:FE is 2:3. What are the coordinates of F? A. (-3,0) B.(-2,2) C(-1,4) D.(2,4)

  87. math

    i need help with geometry semester b unit 7 lesson 10 surface area and volume unit test i need someone to check my anwsers and to tell what i did wrong 1) use euler's formula to find the missing number vertices 15 edges 24 faces? 9,10,11,12 My answer was

  88. Chemistry

    Several compounds containing only sulfur (S) and fluorine (F) are known. Three of them have the following compositions: i. 1.188 g of F for every 1.000 g of S ii. 2.375 g of F for every 1.000 g of S iii. 3.563 g of F for every 1.000 g of S How do these

  89. Physics

    An 80 kg man stands in an elevator. What force does the floor of the elevator exert on the man if a) the elevator is stationary? b) the elevator accelerates upward at 2 m/s2? c) the elevator rises with constant velocity 4 m/s? d) while rising, the elevator

  90. Math

    Look at the given triangles. a. Write an expression in simplest form for the perimeter of each triangle. b. Write another expression in simplest form that shows the difference between the perimeter of the larger triangle and the perimeter of the smaller

  91. CHECK MY ANSWERS FOR ENGLISH PLEASE

    11. Read the following paragraph found in the selection from "From Emperor to Citizen." The "Articles for Favorable Treatment" stipulated that I could live temporarily in the Imperial Palace without fixing any definite time limit. Apart from three large

  92. Math/algebra

    What is the 20th term of the sequence that begins with −2, 4, -8, 16 ANSWER CHOICES: A)2,097,152 B)524,288 C)-524,288 D)1,048,576 Answer Th

  93. Math (help)

    A coin is tossed, and a standard number cube is rolled. What is the probability that the coin shows heads and the number cube shows an even number? 1/6 1 1/4 1/2

  94. Art

    An interior designer creates a plan for a baby nursery. Why does he decide to use light blue as a main part of the color scheme? Light blue encourages infant brain development. Light blue is the most popular color for nurseries. Light blue will encourage

  95. Math HELP! Ms.Sue

    The stem-and-leaf plot shows the heights in centimeters of Teddy Bear sunflowers grown in two different types of soil. Soil A| |Soil B | 5 |9 5 2 1 1| 6 |39 510| 7 |023678 21| 8 |3 0| 9 | Key: 9|6 means 69, Key: 5|8 means 58 a) Describe the overlap of the

  96. math

    Determine which function has the greater rate of change in questions 1−3 1. x y ------- -1 0 0 1 1 2 2 3 (1 point) The rates of change are equal. The graph has a greater rate of change.*** The table has a greater rate of change. none of the above 2. y =

  97. diff calculus

    1.) triangular corner lot has perpendicular sides of lengths 120 feet and 160 feet. Find the dimensions of the largest rectangular building that can be constructed on the lot with sides parallel to the streets.

  98. Algebra 2

    Write an equation for the translation of y=5/x that has the asymptotes x=6 and y=7.

  99. Precalculus

    The height (in centimeters) of a candle is a linear function of the amount of time (in hours) it has been burning. When graphed, the function gives a line with a slope of -0.4 . Suppose that the height of the candle after 13 hours is 24.8 centimeters. What

  100. Math

    A researcher tagged 40 giant turtles in 2008. In 2009 , she returned and captured 50 turtles , 16 of which were tagged. In 2010 , she returned again and captured 30 turtles , 8 of which were tagged. a) Use a proportion to estimate the turtle population for