Questions Asked on
March 7, 2017

  1. Physics

    Find work done when 25kg weight lifted to a vertical height of 2m from the ground carrying to the same place by pushing it up and inclined plane make the angle of 30 degree (g=9.8)

  2. Technical writing

    Identify the sentence that is punctuated correctly. Select one: a. In December 2013 I visited my aunt for Christmas in Allentown, Pennsylvania, for the first time in 20 years. b. In December 2013, I visited my aunt for Christmas in Allentown, Pennsylvania

  3. Technical writing

    Identify the sentence that is punctuated correctly. Select one: a. My parents moved to West Virginia when they retired because the price of living is cheaper there. b. My parents moved to West Virginia, when they retired, because the price of living is

  4. Math

    a boy standing 70m away from a flag post observe that the angle of elevation of the top and bottom of a tower on top of the flag post are 57 and 69 degrees respectively. find the height of the tower

  5. math question

    Find the coordinates of the four points which have integer coordinates and are a distance of root 5 from the point (1, 2). Hint 5=1^2 + 2^2

  6. Calculus

    All edges of a cube are expanding at a rate of 8 centimeters per second. (a) How fast is the volume changing when each edge is 4 cm? (b) How fast is the volume changing when each edge is 10 cm? Kind of confused... V = x^3 dx/dt = 8 dV/dt = 3x^2 dx/dt (a)

  7. English

    Identify the incorrectly punctuated sentence. A: Reaching for the lightbulb. Greg fell off the stepladder. B: Thinking he might be hurt Robert ran in to help.*** C: Changing a lightbulb is not difficult. D: Holding the stepladder, Robert watched Greg try

  8. 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?

  9. Language arts

    In an essay, explain how the alliteration in full fathom five helps convey the atmosphere of the poem. Think about where is the poem is set and what is described. Then, give two examples of alliteration in the poem, and describe how they add to the

  10. math

    building lot in a city is shaped as a 30° -60° -90° triangle. The side opposite the 30° angle measures 41 feet. a. what is the length of the side of the lot opposite the 60° angle b. what is the length of the hypotenuse of the triangular lot. c. what

  11. reading

    What is a summary for chapter 2 slam by Walter dean Myers

  12. Math

    A basketball player made 63 out of 100 attempted free throws.What percent of free throws did the player make

  13. Math

    write a function rule for the area of a rectangle or picture frame that has a width of 22 in less than its length use the function rule to find the area of the picture frame the length is 39 inches

  14. English

    this is a sentence from Another Evening at the Club The spectres of the eucalyptus trees ranged along the garden fence rocked before her gaze, with white egrets slumbering on their high branches like huge white flowers among the thin leaves The author most

  15. Geometry

    what is the value of x in the diagram? A. 1/2 B. 4/21 C. 2 D. 4 The fractions for cross multiplication are 9/4x-2 and 12/3x+2 I tried to do it but it was not an answer and i dont know what i did wrong

  16. Math

    4. Identify the sequence 1,024, 64, 4, 1/4,... as arithmetic, geometric, neither, or both,

  17. chemistry

    Calculate the concentration of all species in a 0.20 M KF solution.

  18. Chemistry

    WHAT ARE THE MAJOR SPECIES PRESENT IN A AQUEOUS SOLUTION OF 1.0M CH3C00H? I) CH3COOH II) H20 III) H30+ IV) CH3COO- VI) OH-

  19. math

    10cents a minute and they talk 10 1\2 hours how many dollars would it be

  20. Chemistry Help?

    Can someone walk me through the steps on how to solve using these equations? Thank yoouuuu~~ 1.11g of methane CH4 is burned in a bomb calorimeter containing 1000 grams of water. The initial temperature of water is 24.85oC. The specific heat of water is

  21. chemistry

    1. 25.0mL of 0.20M Propanic acid (HC3H5O2, Ka = 1.3×10-5) is titrated using 0.10M NaOH. Calculate the following pH. Show your work. a. When 0.0 mL NaOH is added. b. When 25.0 mL NaOH is added c. When 50.0 mL NaOH is added d. When 75.0mL NaOH is added.

  22. History

    1. Which of the following happened in south carolina during reconstruction? A. The state developed an oil industry. B. The state stopped cotton production. C. The state built an iron industry. D. The state rebuilt its railroad system.

  23. Math

    What is the difference between the largest prime number less than 50 and the smallest composite number greater than 10? 35 36 37 38

  24. Math

    Lisa looked at a group of even numbers. The numbers were 4, 8, 48, and 64. She made a generalization that all even numbers can be divided by 4. Which number below could you use to show weather Lisa's generalization is correct or incorrect. A. 18 B. 28 C.

  25. Math

    Decide whether the given statement is always, sometimes, or never true. The domain of a rational expression and any simplified form are equivalent. a. sometimes true b. never true c. always true

  26. Math

    The temperature at sunrise is 65F. Each hour during the day, the temperature rises 5F. Write an equation that models the temperature y, in degrees Fahrenheit, after x hours during the day. I need help writing the equation, I don't want the answer to the

  27. Pollution Essay -- HELP PLS!

    I'm doing a small essay on water pollution (like nuclear radiation accidents, trash, etc.). I just need one final question answered to finish this but I need some help. "Discuss steps that can be taken by individuals, businesses, and/or governments to

  28. Algebra

    The perimeter of a triangle is 126 inches. The longest side is 7 inches longer than the shortest side. The shortest side is 2 inches less than remaining side. Find the length of the shortest side.

  29. Physics

    A hydraulic hoist has a ram of 30 cm diameter and a plunger of 1 cm diameter. If 70 N effort is applied to the plunger and the efficiency is 80%, find the maximum load it can raise.

  30. Physics

    A man pushes a 200 N crate up a frictionless incline with a slope of 20 degrees. The crate is raised by 4 m as shown. Assuming the crate moves at constant speed, what is the work done by the man?. I know Work = Force x Displacement. The answer is 800 N.

  31. Physics - Forces

    A 10 kg block is pressed against a vertical wall and held in place by a force F of 180 N, 37° above the horizontal. The coefficient of static friction μS=0.20. Find the magnitude and direction of the frictional force. The answer is 10.3 N downward but I

  32. 4 th grade social studies

    What were huge steam engines called?

  33. science

    10. How does a star's life begin

  34. Chem

    Given the reaction: Fe2SiO4 (s) + 2 H2CO3 (aq) ----> 2FeCO3 (s) + H4SiO4 (aq). How many grams of Fe2SiO4 are required to completely react with 55.0 mL of .500 M H2CO3 (aq)?

  35. ATI TEAS 6 practice

    Solve the equation below for x. What is the solution set? 5(x-2)^2=125 Answer : x=-3 or x=7 I know I need to do factoring, just forget how to set it up. I also can't figure out where this -20x+20 came from. Thanks for the assistance.

  36. Math

    On Sunday Lindsey rode her bike 3 times as much as she did on Saturday. On Saturday she rode 3 miles. How far did she ride on Sunday

  37. Social Studies

    you have decided to relocate you want to live in a mountainous area but you want to be next to the ocean too and you also want to avoid places with extremely long cold winters where do you go? A.rockey mountains B.appalachain mountains C.sierra Nevada

  38. 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?

  39. Maths

    Hi!!! I want help in maths . The interior angles of a pentagon are in the ratio 4:5:6:7:5 . Find each angle of the pentagon.

  40. Math

    I am six years older than my sister. In five year, her age will be 5/6 of my age then. How old is she today?

  41. ap physics

    A star the size of our Sun runs out of nuclear fuel and, without losing mass, collapses to a white dwarf star the size of our Earth. The radius of our Sun is 6.96×108m , the radius of Earth is 6.37×106m . If the star initially rotates at the same rate as

  42. Social Studies

    9. What led Jane Addams to open hull house? -She believed that someone needed to help the clinically insane assimilate into society. -She believed in helping the urban poor, especially immigrants. -She believed that the public needed to know what the

  43. Math

    1. Name the angle that is supplementary to

  44. Math

    1. Write a rule for the sequence 3,-3,-9,-15,...

  45. math

    Last night, Greg was reading a book. At first, he was sitting next to the lamp, which was very bright. Greg could see all of the words in the book very well. Then, he moved to a chair that was farther away from the lamp. It was less bright in the spot

  46. Chemistry

    Given the reaction: Fe2SiO4 (s) + 2 H2CO3 (aq) ----> 2FeCO3 (s) + H4SiO4 (aq). How many grams of Fe2SiO4 are required to completely react with 55.0 mL of .500 M H2CO3 (aq)?

  47. Physics!

    Question #4 : What is the amount of energy used to raise a 3000N load 0.4m? A force of 1000N is used to raise that same load up. 1)State the mechanical advantage of the machine used? 2)Is this machine 100% efficient?

  48. calculus

    A group of engineers is building a parabolic satellite dish whose shape will be formed by rotating the curve y=ax^2 about the y-axis. If the dish is to have a 6-foot diameter and a maximum depth of 2 feet, find the value of a and the surface area (in

  49. Math

    2. Find the next three terms of the sequence. -2,-12,-72,-432,...

  50. Math

    To play a game, you spin a spinner like the one shown.you win if the arrow lands in one of the areas marked win.lee played this game many times and recorded her results. She won 8 times and lost 40 times. Use lees data to explain how to find the

  51. Math

    Find the point on the line 7x+1y−2=0 which is closest to the point (−1,−3).

  52. Sociology

    In America, the family of the 1950's (young, married, two children, father works while mother stays at home) is often idealized. What social factors caused that family structure to exist and why is it less common today? I can't seem to think of any

  53. Chemistry

    A second order reaction is 50 % complete in 16 minutes. How long will it take to be 82 % complete

  54. Communications

    I need help brainstorming ideas for the following below: our assignment is that : "You have been asked by the college union to research a way that will make the lives of its students easier. You should consider ONE facet of a students’ life that you

  55. Technical writing

    Always use a comma before somebody's name in a sentence. A.true B.false B

  56. Math - Optomization

    A cylinder is inscribed in a right circular cone of height 6.5 and radius (at the base) equal to 5.5. What are the dimensions of such a cylinder which has maximum volume?

  57. Maths trigonometry

    Sin Alfa = 335sin59 over x

  58. Probability

    Suppose that X has a PDF of the form f(x) {1/x^2 if x>= 1 { 0 otherwise For any x>2, the conditional PDF of X, given the event X>2 is (Your answer should be an algebraic function of x)

  59. algebra

    find the periodic payments necessary to accumulate the amount given in a sinking fund. Assume end of period deposits and compounding at the same intervals as deposits. $70,000 in a fund 7% per year, monthly payments for 5 years Thank you your time is

  60. Math HELP

    Find the present value of the annuity necessary to fund the withdrawal given. $300 per month for 20 years Annuity earns 7% per year thank you for your time.

  61. Math

    A swimming pool is filled with water at a constant rate of 9 gallons every 10 minutes. After 30 minutes, the pool is filled with 55 gallons of water. Which equation represents this relationship ? F. y= 9x + 55 G. y= 10x + 28 H. y= 9/10x + 28 J. y= 9/10x +

  62. Career Exploration

    Please check my answers! ^-^ 1.) How is the U.S. population changing? a. The number of older americans is growing*** b. Women will soon outnumber men by about 2 to 1 c. The number of middle aged people is nearing zero. d. Fewer immigrants are moving to the

  63. Physics

    If the trampoline can be considered as a spring with a spring constant of 4.5 x 10^5 N/m, what is the maximum depression of the trampoline? I started with this knowledge: E=1/2mv^2+mgy+1/2kx^2 This being the total of energies. I have done a similar problem

  64. Physics

    A ball is thrown with a speed of 19m/s and at an angle of 46 degrees. How high does it go above the cliff to the nearest tenth?

  65. Pre-Calculus 12

    2x^3 - 13x^2 + 32x - 13 = 0

  66. Language Arts

    What would be the two main sides of a agurementive essay on drug abuse?

  67. ELA

    What can you infer about the speaker in “Rose Pogonias”? Support your answer with evidence by citing examples of three words or phrases from the poem. Explain why each word or phrase helps you know more about the speaker. A saturated meadow, Sun-shaped

  68. English

    "The sun was shining on the sea, Shining with all his might: He did his very best to make The billows smooth and bright — And this was odd because it was The middle of the night. The moon was shining sulkily, Because she thought the sun Had got no

  69. Hot math questions

    suppose one of the pairs is missing a shoe. how many shoes are in the closet?

  70. English

    What is an external conflict in act one of Julius Caesar?

  71. Geometry

    What is the area of the largest circle that will fit into a rectangle with dimensions 7.5 cm by 10.8 cm? Use 3.14 as the approximate of π and round your answer to the nearest tenth of a square centimeter.

  72. Geometry

    Find the perimeter of a region bounded on three sides by a rectangle with a base of 600 ft and a height of 800 ft and bounded above by a semicircle with a radius of 300 ft. Use the approximation π = 3.14. (Do not include the lower half of the semicircle

  73. Math

    There are three consecutive even integers such that the sum of the first two integers is four less than the third integer. What are the integers?

  74. Math

    Joe invests $1500 for 1 year at 7.5%. How much interest will he earn?

  75. Probability

    A lightbulb is installed. With probability 1/3, it burns out immediately when it is first installed. With probability 2/3, it burns out after an amount of time that is uniformly distributed on [0,3]. The expected value of the time until the lightbulb burns

  76. Math

    The student population at a university dropped from 8,500 to 8245 in one year. Determine the percent decrease over the year.

  77. Math

    A rectangle has sides of 3x+5 and 5x-2. Give the polynomial that represents its perimeter.

  78. Technical writing

    Identify the sentence that is punctuated correctly. Select one: a. Once inside, my mother's house seemed much larger than it appears on the outside. b. Once inside my mother's house seemed much larger, than it appears on the outside. c. Once inside, my

  79. Pre-Calculus 12

    Solve the polynomial equation. 2x^3 - 13x^2 + 32x - 13 = 0

  80. American Government

    Which of the following individual actions most influences government and political decision making? B- voting in local and national elections.

  81. math

    I am stuck on this question Find the area of the irregular figure ( use 3.14 for pi ) round to the nearest tenth.

  82. Math

    Rita's baby brother weighed 7 5/16 pounds when he was born. Since then, her brother has gained 3 3/4 pounds. How much does Rita's baby brother weigh now? Express your answer as a fraction and as a decimal.

  83. phy sc

    A rectangular barge, 5.6 m long and 3.0 m wide, floats in fresh water. Suppose that a 370-kg crate of auto parts is loaded onto the barge.

  84. maths

    Line AB touches circle (p,12) at A and circle (Q, 5) at B. If PQ = 25 and A and B are either side of line PQ then AB=-

  85. maths

    Angle AOP is an acute angle .circle (O, OP ) is passing from A. Line l touches at A. No is perpendicular on line l from P. If AN =15 PN =9 then radius=-----

  86. calculus

    Use the method of cylindrical shells to find the volume of the solid obtained by rotating the region bounded by the given curves about the x-axis. xy = 2, x = 0, y = 2, y = 4

  87. maths

    A wire from a square of area 324 cm2. If A wire from a semicircle then area becomes ------

  88. maths

    Consider a rectangle with perimeter of 24 unites

  89. ap physics

    A car leaves an intersection after a light turns green. It starts from rest and reaches a speed of 13.4 m/s in 5.0 s. The radius of a tire of the car is 0.25 m.

  90. Geometry

    What are the values of a and b? A. a=9/2 b=15/2 B. a=15/2 b=9/2 C. a=16/3 b=15/2 D. a=9/2 b=13/2 The triangle has a hypotenuse that is 8 and a with the other side being 10 and another side of b. the altitude is 6.

  91. Math

    A recipe calls for 2 1/4 of salt for every 1 1/8 teaspoon of black pepper. How many teaspoons of salt are needed for each teaspoon of pepper used?

  92. math

    you are going on a holiday for 10 days. what date and month will u come back? 7 days in the month of november since nov has 30 days and 3 days of december. so the answer is 3rd december

  93. MATH

    what is the diameter of a circle with a circumfrence of 47.1

  94. Math

    Can someone help me write this as a function. (6, -1); m= -5/3

  95. Science

    The seeds develop into BLANK and are dipersed

  96. math

    (13-2)squared + (14-12 divided by 3)= (121) + (2 divided by 3) (121) + (-.6)= 120.4

  97. Long Division

    Need desperate help with this question! (x^3-13x-18)/(x-4)

  98. Math

    Ziggy earned $7.50 per hour plus an additional $100 in tips in Saturday. He earned more than $145 in all. Write an inequality to show h, the amount of hours he may have worked on Saturday.

  99. Math

    In Carolina's class, 6/16 of the children have freckles. of the children with freckles, 1/12 have red hair. what fraction of Carolina's class has red hair and freckles?

  100. Math

    Factor the following expression completely: 2ab+6a+12abc

  101. chemistry

    At 983 torr of pressure, 1.62 grams of a gas dissolves in 2.0L of water at 10'C. What mass of gas will dissolved in 2.0L of water at 1432 torr and 10'C

  102. Calculus Answer Check

    Rocket A has a positive velocity v(t) after being launched upward from an initial height of 0 feet at t=0 seconds. The velocity of the rocket is recorded for certain values of t over the interval 0

  103. art

    A golden pendant from an ancient world was once used to drive away evil spirits this payment is found by treasure hunter thousands of years later who sells the object to the highest bidder this chain of events is an example of

  104. Chemistry 30

    How do i do this question?? A 10.00ml Sample was taken from a 2Liter Container of Tropicana Orange juice. This sample was analyzed for its citric acid content by titration with a known 0.1112M NaOH base solution. A Phenoolphthalein indicator was added to

  105. Chemistry

    Write the equations for the reactions in which acids and bases are neutralized by the buffer consisting of HCOOH and HCOONa is a water solution in order to maintain a relatively constant pH of the solution?

  106. Math age problem/ Solving Multi step Equations

    Alexa is 15 years less than twice Michael's age. How old are Alexa and Michael if the sum of their ages is 12?

  107. Math

    Find the area of the region between the curves y=lnx and y=ln2x from x=1 and x=5.

  108. Math

    The store is selling lemons at $0.33 each. Each lemon yields about 2 tablespoons of juice. How much will it cost to buy enough lemons to make four 9-inch lemon pies, each requiring half a cup of lemon juice? The first time I tried it, it was 1.32 then i

  109. Math

    What object weighs one ounce? 1. Car 2. Newspaper 3. Dog 4. Button plzz help Conexus 2nd grade.

  110. Physics

    Blood from an animal is placed in a bottle 1.3 m above a 3.6 cm long needle, of inside diameter 0.35 mm , from which it flows at a rate of 2.1 cm3/min . What is the viscosity of this blood? Assume ρblood=1.05×103kg/m3.

  111. Science: Chemistry

    What is the mass percent of oxygen in sodium bicarbonate(NaHCO3)?

  112. Statistics

    Suppose that on average 10% of the people with an airline-ticket doesn't show up at the flight.For a certain flight, the plane has 100 seats and 110 tickets are sold. What is the probability that everyone who shows up will have a seat?

  113. social studies thinking works

    When several stores in the same neighborhood sell the same video game system, what will likely happen? A. The price in the video game will increase B.the cost of production for video games will increase C.the price of video games will decrease** D.the

  114. Social studies

    The one with stars is my answer. you decided to relocate. you want to live in the mountains area, but you want to be next to the ocean too. you also avoid country with long, extreme cold winters. Where would you most likely move? A. Rocky mountains B.

  115. Science

    Discuss your opinion of the consequences of artificial selection and the advantages and disadvantages of using genetic information in society. Use facts from your research to support your opinion. Cite the sources for your facts. Also, discuss your answer

  116. math

    Nico invests some money @ 5%, and $2400 less @4%. Investments total $165.00 in intrest in 1 yr. How much did he invest at each rate?

  117. Math

    A carpenter cut pieces from a 12 foot long board that were 4 3/4 feet long and 3 1/2 feet long. What is the length of the remaining part if the board?

  118. Science Plz help

    How were the Aborigine people affected when their children were forced to live with British families or in institutions?

  119. Math

    John says that when you compare two fractions with the same numerator,you look at the denominators because the fraction with the greater denominator is greater.is he correct?Explain,and give an example.

  120. math

    the length of a rectangle is 7 feet more than the width. If the perimeter is 194 feet, what are the length and the width?

  121. physic

    How much heat is required to raise the temperature of 100g of copper from 293 kelvin to 373 kelvin(specific heat capacity of copper 400j/kg/k).

  122. Government

    What criteria should civil societies have? What are some ways that we can measure the strengths of civil societies? Thank you for your help!

  123. Science

    What mass of sodium has the same number of atoms as 50.0 g of calcium?

  124. Science

    Match the question with the correct conversion factor needed. Column A 1.What is the mass, in grams, of a single atom of carbon?: 2.What is the mass, in grams, of a single atom of iron?: 3.What is the mass, in grams, of a single molecule of water?: 4.What

  125. Math

    Tom had 5 3/8 lbs. Of trail mix. He is putting 1/4 lbs. In as many bags as he can, how many can he make?

  126. math

    The length of a rectangle is 9 inches more than the width. If the perimeter is 110 inches, what are the length and the width? Length= Width=

  127. Math

    A large glass of juice contains a mix of half mango juice and half pumpkin juice. A smaller glass contains pure pumpkin juice. If the two glasses are combined in a pitcher, the result will be 60% pumpkin juice. The volume of the small glass is 4 ounces;

  128. Math

    What repeated number is used as slang in Thailand for "hahaha"? A.333 B.444 C.555 D.666

  129. maths

    F^-1 is defined by F^-1(x)= 1-5x/2x for 0 < x

  130. ap physics

    A car leaves an intersection after a light turns green. It starts from rest and reaches a speed of 13.4 m/s in 5.0 s. The radius of a tire of the car is 0.25 mDetermine the average rotational acceleration of the tire.

  131. math

    The length of a rectangle is 5 feet more than the width. If the perimeter is 138 feet, what are the length and the width? Length? Width?

  132. Maths trigonometry

    335sin59 over xx

  133. ap physics

    Suppose that a person closes a car door. The person's fingers are in the door opening, that is located 0.50 m from the hinges. The rotational inertia of the car door is 5.0 kg⋅m2. The door closes in 0.1 s and the rotational speed of the door is 1.4 rad/s

  134. Laws of Physics

    A box is pushed 2.1m up a ramp into a container by an effort force of 200N. The container gains 200N. 1)What is the energy used to push the container? 2)What is the efficiency of the machine? 3)What force can affect the load when it is being pushed?

  135. math

    find an expression for F(x) and state the domain of F when F^-1(x)= 1-5x/2x for 0 < x

  136. Finance

    What is the present value of $100 PERPETU I TY of the interest rate is 7%? If interest rates doubled to 14%, what would its present value be? At 7% hundred dollars multiplied 0.943 equals 9430 or is it 14.2857 multiplied 100 equals 1428. 57? At 14% is it

  137. Science

    Can Someone explain this? Should other states wait to see if the high-speed rail system works well before starting their own plans for similar systems?

  138. Physics

    Pepe and Alfredo are resting on an offshore raft after a swim. They estimate that 3m separates a trough and an adjacent crest of surface waves on the lake. They count 14 crests that pass by the raft in 20 seconds. Calculate how fast the waves are moving.

  139. Chemistry

    What would be a good chemical blank to use for the Tollen's Test (Silver Mirror test)?

  140. English

    Write the correct word. The student was ____ of school rules and usually arrived late to class. disdain or disdained answer: disdained

  141. Math

    Chet's watch is guaranteed for 90 days. If it stops working sit weeks after he bought it,is it under warranty?

  142. Physics

    If the distance between two charges is increased to three times the original distance, how will the electrical force between the charges compare with the original force? It will increase to three times the original force. It will increase to nine times the

  143. ap physics

    A 10-kg disk-shaped flywheel of radius 9.0 cm rotates with a rotational speed of 320 rad/s. Determine the rotational momentum of the flywheel. With what magnitude rotational speed must a 10-kg solid sphere of 9.0 cm radius rotate to have the same

  144. LanguageArts

    In the poems Concrete Cat, Limerick and Haiku chose different forms to express their thoughts and feelings about the subject. Imagine that their poetic forms changed how would each poem be different if its form was exchanged with another form write a

  145. Math

    1. Which is a set of collinear points? 1. J, H, I **** 2. L, H, J 3. J, G, L 4. L, K, H

  146. english

    What happened to the men that eat the Lotus? What does this suggest about the main problem that Odysseus has with his men? (From the Odyssey) Thanks!

  147. ap physics

    Suppose that Superman wants to stop Earth so it does not rotate. He exerts a force on Earth F⃗ SonE at Earth's equator tangent to its surface for a time interval of 1 year. The mass of Earth is 5.98×1024kg, the radius is 6.37×106m. Assume that Earth is

  148. ap physics

    Determine the change in rotational kinetic energy when the rotational velocity of the turntable of a stereo system increases from 0 to 33 rpm. Its rotational inertia is 6.8×10−3kg⋅m2 .

  149. ap physics

    A Verdant Power water turbine (a "windmill" in water) turns in the East River near New York City. Its propeller is 2.5 m in radius and spins at 32 rpm when in water that is moving at 2.0 m/s. The rotational inertia of the propeller is approximately 3.0

  150. Science

    1.Acceleration involves a change in? A.time B.direction C.speed D.both direction and speed I think it's D?

  151. Math

    Chet's watch is guaranteed for 90 days. If it stops working six weeks after he bought it,is it still under warranty?

  152. english

    Does Odysseus respond appropriately to the 3 men that stay long with the lotus eaters? Why or why not? (from the Odyssey) Thanks!

  153. maths trigonometry

    335sin59 over x

  154. Physics

    A horizontal spring(k= 86.2 N/m) is placed on a countertop and is compressed a distance of 36.3 cm. A 103.5 g object is placed at the end of the spring. The coefficient of kinetic friction between the object and countertop is measured to be .47. What

  155. Algebra math 150

    how do I explain the process of this problem A=1/2h(a+b)?

  156. Math

    A middle school wants to have its students see a movie at a local theater. The total cost of the theater and movie rental is $1,500. What equation shows how the cost per student depends on the number of students who attend? I'm not really sure what this

  157. FUR. MATHS

    Given. f(x)=2x-1, g(x)=5-2x

  158. English

    Write the analogy. Repose is to quiescent as______. 1. disdain is to scornful 2. disgust is to repugnant answer: 2

  159. History

    The Underground Railroad used escape routes that went throughout the South. Based on that fact, which of the following conclusion could be made? A) The Southern states were leaning toward emancipation of the slaves. B) Slaves were hopeful to acquire jobs