Questions Asked on
December 16, 2014

  1. P.E

    1. One of your friends plays video games for at least six hours each day and gets upset when he has to eat dinner with his family. This is a sign of? a. An anxiety disorder. b. A phobia c. Bipolar disorder d. An impulse-control disorder 2. A phobia is an

  2. physics

    A balloon is rising at 3.6 m/s at same time is blown by wind for 5.4 m/s from east. Find the actual velocity and direction of the balloon.

  3. calculus

    No idea where to start The cost in dollars of producing x units of a particular camera is C(x) = x2 - 10000. (10 points) Find the average rate of change of C with respect to x when the production level is changed from x = 100 to x = 101. Include units in

  4. Chemistry Honors

    What mass of calcium bromide is needed to prepare 150.0 mL of a 3.50 M solution? (Assume that the molecular weight of CaBr2 is 200.618 g/mol) A. 105 g B. 100.42 g C. 0.105 g D. 103.35 g

  5. Math

    A car travels at 60 mi/hr. The function f(x)=60x gives the distance the car travels in x hours. What is the range of this function? A.y is greater than or equalt o 0 B. {0,1,2,3,...) C.{0,60,120,180,...} D.all real numbers

  6. Chemistry

    Which of the following is not true about molecular orbital theory? A. The bonding molecular orbital is filled before the antibonding orbital. B. Each molecular orbital can accommodate only one electron. C. The number of molecular orbitals formed is often

  7. English - Writeteacher

    6. She had a lengthy career as a WRITER and a FILMMAKER. compound direct object ****** compound predicate nominative compound subject compound verb 7.*Few of the applicants* made it through the grueling admissions process. Simple subject ********* complete

  8. algebra

    How can you quickly determine the number of roots a polynomial will have by looking at the equation?

  9. CHEM MOLES !@@!

    Mole Calculation Worksheet 1) How many moles are in 15 grams of lithium? 2) How many grams are in 2.4 moles of sulfur? 3) How many moles are in 22 grams of argon? 4) How many grams are in 88.1 moles of magnesium? 5) How many moles are in 2.3 grams of

  10. English

    3 The teacher asked the class to STAY put while she went to the office. transitive verb action verb auxiliary verb linking verb ******** 4 NEITHER whales NOR dolphins are fish, although many believe that they are. correlative conjunctions *****

  11. Math

    The cost in dollars of producing x units of a particular camera is C(x) = x^2 - 10000. (10 points) Find the average rate of change of C with respect to x when the production level is changed from x = 100 to x = 101. Include units in your answer. Find the

  12. Life Span Development

    Question 1 1-The quality of a children’s attachments has been found to affect a-what children expect social interactions to be like. b-whether children remember positive or negative aspects of events better. c-children’s concepts of themselves. d-all

  13. Algebra

    Which property is illustrated by 45 + 19 = 19 + 45? A. Commutative property of addition B. Identity property of Addition C. Associative property of addition D. zero property of addition

  14. math

    Rosa can run 4 miles in 56 minutes. How many miles does Rosa run if she runs for 42 minutes? **solve using Ratios & Rates THANK YOU!

  15. Chemistry

    Which of the following affects how strongly anions and cations are attracted to each other in a solid? A. The nucleus B. Empty valence orbitals C. Distance between anions and cations D. Neutrons I the answer b.

  16. Chemistry

    A 7.65 g sample of potassium chlorate,KClO3, was heated to decompose all the oxygen. It was found that 2.25 L of oxygen was collected over water at 25.00degreesC and 1.00 atm of pressure. The vapor pressure of water at that temperature is 23.8 mm Hg. How

  17. Chemistry Honors

    Arthur is performing a lab which requires a 0.2 M solution of calcium hydroxide. However, the only calcium hydroxide solution available has a concentration of 0.5 M. How can Arthur dilute the 0.5 M solution to make 10 mL of a 0.2 M solution? A.He needs to

  18. Algebra 2

    Can someone please help me do the follow problem... ...The cost (in dollars) of producing x sneakers in a factory is given by c(x)=60x+750. The number of sneakers produced in (t) hours is given by x(t)=50t. Fund c(x(t)). Evaluate c(x(5)) and explain what

  19. algebra

    A Gentoo penguin can swim at a rate of 17 miles per hour. How many miles can a penguin swim in 4 hours? Use the expression rt, where r represents rate and t represents time. How do I put this into an expression?

  20. Math

    Raymonds age plus his sister janice's age is 48 years. Janice's age is half Raymonds age plus six years. How old is Raymond? How old is janice

  21. calculus

    Do I just put in 3 for t? A ball is dropped from a tower 550 meters above the ground with position function s(t) = 4.9t2 + 550. What is the velocity of the ball after 3 seconds?

  22. Chemistry

    The oscillation of electrons in an antenna is an example of which type of radiation/waves/rays? A. Radio waves B. Infrared rays C. Microwaves D. VLF radiation

  23. Algebra 1

    Write y= -2/3x +7 in standard form using integers.

  24. Trig/Precalc

    Find the greatest possible value of 5cos(x)+6sin(x). I know that it would be a good idea to look for identities that are in the form of acos(x)+bsin(x), but I can't seem to find any. Other than that I don't really know where to go with this problem. Any

  25. physics

    an object is dropped from a vertical cliff. How long does it take to reach 85 km/h?

  26. English - Writeteacher

    39. Without her cat in her lap, she felt alone during the long train ride. simple sentence ***** compound sentence complex sentence compound-complex sentence 40. He steeled his nerve, and he walked into the police station to confess. simple sentence

  27. Math

    Another question. The floor of Raj's classroom has an area of 525 feet. The room is 12 feet high. What is the volume of Raj's classroom? I had got 6300. Is this correct? I had used the formula V = B x H.

  28. Algebra 2

    write the compound inequality 3.1 less then or equal to m less than or equal 4.7 as an absolute value inequality.

  29. Chemistry

    Why are metals malleable? A. Because they reflect incoming photons B. Because they are made of atoms that have tightly held electrons C. Because of their structure and uniform bonding in all directions D. Because their lattice energy is very high I think

  30. chemistry

    The oscillation of electrons in an antenna is an example of which type of radiation/waves/rays? A. Radio waves B. Infrared rays C. Microwaves D. VLF radiation I don't understand what is being asked so I don't have a clue on the answer.

  31. Chemistry Honors

    What volume of a 0.50 M MgSO4 solution will be needed to prepare 100.0 mL of a 0.20 M MgSO4 solution? A.250 mL B.100 mL C.0.250 mL D.40.0 mL

  32. eng help pls

    what are some personal biases one can have about fate controlling our lives ?

  33. algebra

    Suppose you invest $400 at an annual interest rate of 7.6% compounded continuously. How much will you have in the account after 1.5 years. Round to the nearest dollar.

  34. chemistry

    Using the balanced equation, 2 C2H2(g)+5 O2(g) yields 4 CO2(g)+2 H2O(g), at STP if 1mol of C2H2 burned in unlimited oxygen and the theoretical yield of carbon dioxide in liters at STP is 44.8 liters of carbon dioxide, and if 28.5 liters of carbon dioxide

  35. 6th grade Math

    Define a variable. Then write each phrase as an algebraic expression. 1.Three more pancakes than his brother ate. explain why is this the answer

  36. chemistry

    write the mass number, atomic number,number of protons, neutrons,and electrons for He, Si, K+, N3-

  37. math

    A community group purchased 72 cedar tree and spruce tree seedlings to plant for an Earth Day project. The number of cedar trees was twice the number of spruce trees. How many of each type of tree seedling did the group purchase. (i think it is an equation

  38. Algebra

    1. What is the value of the expression (-7)(3) - (5) (-3) 2. Simplify (x^2 +6) - (3x^2 - 2x -5)

  39. english

    Apparently with no surprise, To any happy flower, The frost beheads it at its play, In accidental power. The blond assassin passes on. The sun proceeds unmoved, To measure off another day, For an approving God. In the above poem, which of the following

  40. Physics

    1.) A tennis ball (mass = 57 grams) is held directly above a basketball (mass = 624 grams)that is held 4.7 meters off the ground. Both are dropped simultaneously. Assuming an elastic collision, how high above the ground does the tennis ball reach after

  41. Physics

    Using light of wavelength 600.0nm in a double slit apparatus we find delta x = 1.0cm. If we use the same apparatus for light of wavelength 450.0 nm, what is the new delta x on the screen? Delta x = L*lambda/d But L and d are not given, so how do I approach

  42. Phy.Ed

    Why do i get tired easily during an not so intense game like basketball and badminton. Is there something i am doing wrong that is making me get tired quick or is just my health conditions? Because i have good health. Also how can i run fast without

  43. MATH

    SHELDON CAN RUN A MILE IN 6 4/5 MINUTES, HOW MANY MILES CAN HE RUN IN 30 MINUTES.

  44. Calculas

    Do I just put in 3 for t? A ball is dropped from a tower 550 meters above the ground with position function s(t) = 4.9t^2 + 550. What is the velocity of the ball after 3 seconds?

  45. English

    The sentence is 'What we forgot to mention was that we will be moving in the spring.' I found a clause, it's a noun clause. It's 'that we will be moving in the spring.' I think it's being used as a direct object. We is the subject. Forgot is the verb. What

  46. math

    Arlene has a piece of cloth that is 7 1/8 yards long. She cuts a piece that is 4 3/4 yards long to make a skirt. How much cloth is left?

  47. algebra

    Jennifer's basketball team played 18 games this season, and they won twice as many games as they lost. How many games did they lose?

  48. math please hellp

    The cost in dollars of producing x units of a particular camera is C(x) = x^2 - 10000. (10 points) Find the average rate of change of C with respect to x when the production level is changed from x = 100 to x = 101. Include units in your answer. Find the

  49. algebra

    the lengths of two sides of a right triangle are given. find the length of the third side. a=9,c=41

  50. college student

    Two spheres of mass 2 kg and 3 kg are attached to the ends of a light rigid rod of length 1.0 m. What is the moment of inertia of the system about an axis perpendicular to the rod and (i) passes through the centre of the rod (ii) passes through the 2 kg

  51. Chemistry

    A. Ionic solid B. Molecular solid C. Covalent solid D. Graphic solid Which of this solids is soluble in water, conductive in solution, brittle and could have a melting point of 2800 C. I think the answer is A.

  52. ^Maths^

    If Logx-6 base3=2y and Logx-7 base2=3y, show that x^2-13x+42=72y

  53. Chemistry

    Brass is commonly used to make musical instruments because it is easily malleable and has excellent acoustic properties. It consists of many copper atoms, with some replaced with zinc. What type of alloy is this? A. Brazing B. Substitutional C.

  54. math

    find the equation of tangent to the curve (x\a)^n + (y\b)^n = 2 at the point (a, b)

  55. Algebra 2

    write an equation to solve the problem. find three consecutive even numbers whose sum is 144

  56. Algebra 2

    solve ax -3x + 5 = a+b for x. state any restrictions on the variables.

  57. math

    The 2002 yearbook at Middleton Middle School had 236 candid (fun pictures, not planned) pictures of students. The 2001 yearbook had 214 candid pictures of students. To the nearest tenth, what was the percent of change in the number of candid student

  58. Algebra 2

    find the slope of each line. a. y= 2x-3 b. 3y=7x =1

  59. Algebra 2

    what are the x and y intercepts of 2x +4y =8?

  60. math

    A bolt contained 25 yards of flannel. Nikki used 9 2/3 yards to make holiday decorations. How many yards are left?

  61. maths

    Puzzle Here is a list showing the month and a number for each month. January 7110 February 826 March 5313 April 541 May 3513 June 4610 July 4710 August 681 Decipher the logic and find the number for September = ?

  62. History PLEASE HELP

    In Southwest Asia which oil nations are rich and poor

  63. Business Law

    As company ombudsman, your task is to investigate complaints of wrongdoing on the part of corporate directors and officers, decide whether there is a violation of the law, and deal with the wrongdoers accordingly. Jane, a shareholder of Goodly Corporation,

  64. Algebra 2

    for each function what is f(-2)? a. f(x)= 3x +5 b. f(x) = -5/2x -2

  65. Math

    triangle abc has coordinates a(1 4) b( 3, -2); and c( 4, 2) find the coordinates of the image ABC after a reflection over the x- axis

  66. Physics I

    I'm not sure how to address any of these. I"ve attempted them but each time I do, I've gotten different answers. I'm not even sure where to begin. 1. The Duke’s efforts to conquer the Count are starting to really falter. He has been forced back away from

  67. Calculus

    Given the function f(x)= x√(x+3), Indicate the domain of f(x): ………………………… What are the x – intercepts of the graph of f(x)? POINTS! ……………………………. Identify the critical points of f(x) (write pairs of coordinates,

  68. general chemistry

    The density of a gas is 1.96 g L–1 at 1.00 atm and 0 °C. What is the density of this gas at 0.855 atm and 25.0 C?

  69. chemistry please help drbob222

    How much water is needed to dilute 25.0 ml of 0.357 mol/L hydrochloric acid to 0.246 mol/L I got 17.2 is that correct

  70. Math

    How many digits has a notebook with 30 pages

  71. science

    uncertainties for... grams? digital balance cm? minutes? 5 minutes? milliliter (ml)?

  72. geography

    2+2\4[o]

  73. math

    There was a sidewalk sale at Mega Mall. Everything was marked down by30%. Rodrick bought 3 pairs of jeans originally priced at $29.95 each,a shirt originally priced at $18.50 and a pair of sandals originally priced at $32.29. The sales tax in Roderick's

  74. Science

    Why are liners laid down at the bottom of a landfill before waste is deposited in the landfill ?

  75. algebra

    1/5 > d + 4/5

  76. physics

    A soccer ball is kicked with an initial horizontal velocity of 16.5 m/s from a 92 meter high cliff. Determine the time it took the ball to reach the ground and how far the ball got from the edge of the cliff.

  77. math

    In a recent survey, 30% of the people polled stated that they preferred the taste of a low-fat peanut butter and would but it. Based on this survey, how many people in a city of 200,000 people who eat peanut butter would be expected to buy the low-fat

  78. Math One question! Help!

    find the rate of change for 5 + 3y = -2 Help! Please not webstites or links! thanks!

  79. Geometry

    Points D, E, and F are the midpoints of sides \overline{BC}, \overline{CA}, and \overline{AB} of \triangle ABC, respectively, and \overline{CZ} is an altitude of the triangle. If \angle BAC = 71^\circ, \angle ABC = 39^\circ, and \angle BCA = 70^\circ, then

  80. Math

    Explain how you would find 2 x 2 1/3 using the distributive property.

  81. Algebra 1

    Which ordered pai is a solution of y= -6x -7? A.(0.5,-4) B.(2,-19) C.(-2,-5) D. (3,11)

  82. Math

    Eric'snotebook has 30 pages. He wants to write a number on each page. How many digits will he write when he numbers all the pages in the notebook? 9 is it correct

  83. data excel

    Mark Jacobs, owner of Jacob's Mini-Mart currently operates two stores in Atlanta. His business has been very successful, and he is now opening two new stores. He will no longer be able to manage all stores himself, so he is hiring managers for three of the

  84. Business

    I am trying to find out which components of the Privacy Act of 1974 apply to Federal Agencies. I would appreciate it if you could direct me to a website where i can find this information that is not to hard to understand

  85. math

    Tony jogs 4 2/5 miles from the gym to his home daily. If he takes a water break after 2 1/4 miles,how much further does he have to jog home?

  86. math

    The table below shows the price of purchasing salmon based on the weight being purchased. Table weights (pounds)/ price. 3;23.25,6;46.50,9;69.75,12;93.00 15;116.25

  87. physics

    The frequency and wavelength of a transverse wave on a string are 340 Hz and 0.70 m, respectively. The tension in the string is 110 N. What is the linear density of the string?

  88. Thank you

    This isn't a homework question, sorry, but I wanted to say thank you to Ms.Sue and all of the volunteers. Thank you! Happy Holidays.

  89. math

    The table below shows the price of purchasing salmon based on the weight being purchased. Weights(pounds) price 3:23.25 6:46.50 9:69.75 12:93.00 15:116.25 Based on the table, what is the constant of proportionality when using weight to find price?

  90. Chemistry

    Aluminum metal crystallizes in a face centered cubic lattice. If each Al atom has a radius of 1.43 A what is the density of aluminum metal? I'm not sure how to go about this. I know that eventually I will use V=l^3, but I'm not sure how to get there. I

  91. Algerbra

    What's the answers to page 98

  92. math

    Samantha was playing a fraction game where she could earn either positive or negative points on each turn.The lowest score she ever recorded was -26 2/3. The highest score was 8 3/4. Which. What expession represents the distance on a number line between

  93. math

    How many 3/4 cups servings will go into a 9 cup pitcher

  94. Math

    using gauess approach 1+2+3+4+... +99 1+3+5+7+...+101

  95. algebra

    Jared has a bag that contains 8 blue marbles, 6 red marbles, and 10 green marbles. He selects a marble, replaces it in the bag, and then selects another marble. What is the probability that both marbles are green

  96. Algebra 1

    Write an equation in point slope form for the line through the given point with the given slope. (4,-7); m= -0.54

  97. Comparing & Contrasting

    Why is comparing and contrasting important? I know what comparing and contrasting is but can someone please give me a little info as to why it is important to do so? thanks

  98. math

    There are 120 students involved in the school play. If 72 of the students are girls, what percent are girls

  99. Math

    I want to check this. I had used formulas V = B x H and I x w x h to solve these What is the volume of the box that is 14 inches long, 7 inches wide and 10 inches high? I got 980. Am I right?

  100. math

    Tony jogs 4 2/5 miles from the gym to his home daily. If he takes a water break after 2 1/4 miles, how much father died he have to jog home?

  101. Chemistry Honors

    If water, a polar molecule, is combined with another polar molecule, what can be said about the substance added to the water? A. The solubility can not be determined by only knowing the polarity. B.It is soluble in water only if the water is poured over

  102. Philosophy

    How does Sartre's idea of "subjectivity" relate to Descartes' "I think"?

  103. marh

    Daryl reaned 426 points out of 500 points in English class. Which represent approximately represents Darl's points?

  104. Stats

    Consumption of alcoholic beverages by young women of drinking age has been increasing in the United Kingdom, the United States, and Europe (The Wall Street Journal, February 15, 2006). Data (annual consumption in liters) consistent with the findings

  105. maths

    a bullet of mass 0.01kg is fired from a gun weighing 5.0kg . If the initial speed of bullet is 250 m/sec, calculate the speed with which the gun recoils

  106. math

    there is a women standing on a building. she sees a car. angle of depresion changes from 28 to 43 . distance traveled is 230 . find the hight of the building

  107. astronomy

    Find an exact expression for the magnitude of the tidal force applied by Earth to our rock of mass m

  108. math help

    the sum of the first two terms in a geometric series is 12. the sum of the first three terms of the same series is 62. determine the first four terms of the series.

  109. Chemistry (Solutions)

    Since 1991, house paint produced in Canada must contain no more than 600 ppm of lead. What is the maximum mass of lead permitted ion a 2.50 kg can of paint

  110. algebra 1

    h=-16t2+20t+24 gives the height h of the rock after t seconds. how many seconds does it take for the rock to hit the water 24+20=16t 44=16t 44/16=16/16 2.75 seconds

  111. Chemistry

    Find the molar concentration of 57.9 g of potassiuum chlorate dissolved in 975 mL of water my work c=nv (57.9/122.55)(975ml) and i got 460 is this correct

  112. math help!!

    the first term in a geometric series is 4 and the sum of the first three terms of the series is 64. find the sum of the first eight terms of the series.

  113. algebra

    a support wire 12 yardslong is attached to the top of a utility pole 10yards tall and is then stretched out. to the earest tenth of a yard,find how far from the base of the pole wire will beattached to the ground-breaking

  114. algebra

    an access ramp has a height of five feet and a horizontal distance of 60 feet. find the length of l of the ramp tothe nearest tenth of a foot

  115. MATHS

    P, Q, R, S and T are five consecutive integers in the increasing order. If the sum of Q, R and S is 117, what is the product of P and T?

  116. math

    Three times as many children as adults attended a concert on Saturday. An adult's ticket cost $7 and child's ticket cost $3. the theater collected a total of $6,000. How many people bought tickets?

  117. This site is the best. Thanks a lot :)

    Thanks a lot for everything. Have a great Holidays :)

  118. MATHS

    The numerator of a fraction is 4 less than twice the denominator. If both the numerator and the denominator are increased by 1, the fraction becomes 3/2. What is the original fraction?

  119. Statistics

    Consumption of alcoholic beverages by young women of drinking age has been increasing in the United Kingdom, the United States, and Europe (The Wall Street Journal, February 15, 2006). Data (annual consumption in liters) consistent with the findings

  120. chemistry

    an ice cube has a mass of 4.3g and a mass of 5.0mL it is placed in a 30mL of oil that has a mass of 27 g will the ice cube float or sink in the oil

  121. Calculus

    Average value of f(x) = e ^ 4xsquared on the interval [-1/4,1/4]

  122. chem

    Is there any monobasic solid acid with a molar mass of 120?

  123. math

    Music square buys a guitar for $230.00 and then marks it up 150%. This store buys guitar cases for $35.00 and then marks the price up by 230%. What does Music Square charge for a guitar and a case?

  124. math

    find the length of the curve y^2=x^3 between x=0 and x=5

  125. math

    find the area of region R bounded by the curves y=3x , x=2y and 2x+y=5

  126. pre-algebra

    how do i solve -x=-7

  127. math

    Annie bought the items below and received a 25% discount off the regular price of each item. The sales tax in Annie's state is 6.5%.what is the total that Annie paid for these items,including sales tax? 45.99 dress 15.99 shirt 32.99 shoes

  128. math

    a rectangular pen with partitions is to be built from 800 feet of fencing. Express the area as a function of x alone. graph over a reasonable domain and find the dimensions of the pen of the maximum area that an be built under these conditions

  129. chem

    A 25.0 mL sample of 0.723 M HClO4 is titrated with a KOH solution. The H3O+ concentration after the addition of of KOH is

  130. math

    The cost of 5 similar digital cameras and 3 similar video cameras is $3213. each video camera costs 4 times as much as each digital camera. John buys a digital camera and a video camera. How much does he pay?

  131. physics

    . A proton is released from rest at point A in a uniform electric field that has a magnitude of . The proton undergoes a displacement to point B in the direction of . Calculate the speed of the proton after completing the displacement.

  132. Math

    pls.help me understand how to solve pythagorean theorem

  133. Physics

    A 2.13 kg mass is suspended from a string which is pulled upward. The mass accelerates upwards with an acceleration of 3.10m/s2. What is the tension in the string?

  134. math

    Mr jacob is 55 years old and Tony is 7 years old. In how many years will Mr. Jacob be 4 times as old as Tony?

  135. Math

    What is the result when 600 is increased b y 20%. A.612 B.620 C.720 D.1200

  136. Geology

    The Sun Is 150 Million Kilometers From The Earth, And The Earth's Equatorial Radius Is 6378 Km. How Much Would You Expect The Sun's Intensity To Drop, Based Only On This Additional Distance?

  137. one math question.

    What is the reciprocal of -5? is it -1/5 ?

  138. Algebra

    log(4)(3x + 4)^5 = 15 x = 20? And is this the only solution?

  139. Math

    What is the value of h(x)=|x/2| when x=-2? A. -2 B.-1 C.1 D.2

  140. spanish

    can someone please tell me if my spelling is correct Acción de Gracias es mi familia y yo de vacaciones favorito . Mi abuela tiene cinco hijos y veintitrés nietos y contando. Así que venga de Acción de Gracias a todos nos gusta juntarnos por lo general

  141. MATH

    a person has 56 brownies to package for bake sale. the brownies will be sold in packs of 3. how many brownies will NOT BE PACKAGED? CHOICES 3, 5, 4, 9

  142. Algebra 1

    simplify (x^2 +6) - (3x^2 - 2x -5)

  143. Physics

    A roller-coaster car speeds down a hill past point A where R1 = 8.2 m and then rolls up a hill past point B where R2 = 15.4 m, as shown below. (a) The car has a speed of 21.0 m/s at point A. if the track exerts a normal force on the car of 2.30 ✕ 104 N

  144. chemistry

    Gasoline sold in Ontario must contain at least 5.00% v/v ethanol? How much gasoline contains 1.50 L of ethanol? my answer is 22.5 ml is this correct

  145. physics

    Tarzan tries to cross a river by swinging from one bank to the other on a vine that is 12.2 m long. His speed at the bottom of the swing is 8.6 m/s. Tarzan does not know that the vine has a breaking strength of 1.0 ✕ 103 N. What is the largest mass that

  146. Algebra 1

    jack is taking his family to the fair. he plans to take $5 for each admission ticket plus $35 for food. Write an equation that models the amount of money jack takes to the fair.

  147. Math

    The minimum is (3 π, 5) and the maximum is (5 π, 8). What is the amplitude and what is the period?

  148. Physics

    The radius of curvature of a loop-the-loop for a roller coaster is 11.8 m. At the top of the loop (with the car inside the loop), the force that the seat exerts on a passenger of mass m is 0.80mg. Find the speed of the roller coaster at the top of the

  149. Algebra 1

    What is the value of the expression (-7) (3)- (5)(-3)?

  150. physics

    A 200 gram copper calorimeter contains 400 grams of water at 25 C. A metal specimen weighing 250 grams is heated to a certain temperature and the plunged into the calorimeter The final temperature of the mixture is 42C. If then specific heat of the metal

  151. Physics

    You plan to fly a model airplane of mass 0.655 kg that is attached to a horizontal string. The plane will travel in a horizontal circle of radius 5.50 m. (Assume the weight of the plane is balanced by the upward "lift" force of the air on the wings of the

  152. Physics

    The radius of curvature of a loop-the-loop for a roller coaster is 11.8 m. At the top of the loop (with the car inside the loop), the force that the seat exerts on a passenger of mass m is 0.80mg. Find the speed of the roller coaster at the top of the

  153. Literature - the Watch

    The Watch by Ivan Turgenev Can somebody give me a summary of this story please? i have to send in stuff about it before tomorrow and its a very long story and im a slow reader. some questions and vocabulary about it would be extremely helpful. Yes, i go to

  154. science 8

    Waht is the reason for the seasons experiment?

  155. College Math

    Brent invested $5607 in an account at 2% compounded weekly. Calculate the total investment after 7 years. Please show me the steps. I tried using this formula but it did not work. A=P(1+r/n)^6x1

  156. english

    1. In works like "To Build a Fire," Naturalist writers such as Jack London advocated (Points : 5) trusting entirely in the wisdom and ingenuity of human beings. respect for the power and wildness of the natural world. remaining always within the protective

  157. Stupid Complicated English Grammar

    1. Choose the sentence fragment. (Points : 5) Dew glistening on the tiny green leaves of the young plants. Although some of the seeds had already sprouted, these hadn't. A small herd of buffalo grazed in the valley below us. The wind, cold and powerful,

  158. Science

    Express your opinion about dealing with antibiotic resistance you think are most important to pursue.

  159. chemistry

    What is the final concentration of 35.7mL of 52.0% m/m solution that is diluted to 65.9ml? i am not sure how to caluclate this... but i know the formula is C1V1=C2V2

  160. History

    Word box : 1st Amendment, 5th Amendment, Fear that strong gov would violate personal liberties, Baron Charles de Montesquieu, John Locke, responsibilities of citizenship, religous freedom, economic opportuinities, William Blackstone, Adam Smith, Political

  161. chemistry

    (iii) If the chemist wants to prepare 5.00 litres of the stock solution from concentrated H2SO4 , which is 18.0M, what volume of concentrated acid should be used?

  162. History

    What year was the Declaration of Independence adopted by the Second Continental Congress

  163. english

    Apparently with no surprise, To any happy flower, The frost beheads it at its play, In accidental power. The blond assassin passes on. The sun proceeds unmoved, To measure off another day, For an approving God. In the above poem, which of the following

  164. Physic

    An electron is released from rest in a uniform electric field and accelerates to the north at a rate of 115 m/s^2.Determine the magnitude and direction of electric field.

  165. social studies

    What American ally helped the Patriots win the war? I believe it was France.

  166. History

    What physical feature especially attracted European colonists? A.Many offshore islands B.Fertile soil along high mountain cliffs C.Natural harbors along Atlantic Ocean D.Large lakes located along the coastline

  167. Algebra 2

    suppose y varies directly with x and y=1 when x= -3. what is the constant of variation? what is x when y=4?

  168. Math

    I am a number. The number in my tens place is 5 and I am less than the number in the ones place. The number in the ones place is 9

  169. Writing

    What's a character sketch?

  170. Physic

    Two point charges of magnitude +40x10^-6C and -60x10^-6C are placed 50 cm apart. What is the distance from +40x10^-6C charge along the line joining the two point charges if the resultant potential is zero

  171. Accounting

    Explain Accounting and book-keeping and enumerate the differences (if any) between the two

  172. astro

    According to this expression, if our Sun was replaced by a star twice the mass, how many days would our year be?

  173. Math

    what is the term for a relation in which each input value corresponds to exactly one output value?

  174. History

    What Physical Feature of the New World's Coastline greatly attracted European Colonits A.Offshore islands B.Fertile soil along high moutain cliffs C.Natural harbors along the Atlantic Coast D.Large lakes along the coastline D?

  175. Physic

    Determine, (at a point 10.0cm from a point charge of 100x10^-6C) a. The electric potential b. Electric field strength

  176. Algebra 2

    what is the slope of each line? a. 2x-5y =3 b. 3x +2y =4

  177. Physic

    Two point charges of magnitude +3.0 nC and +2.0 nC respectively are placed 2.0cm apart. Calculate the resultant electric field strength at their midpont(where the positive test charge are place at the midpoint)

  178. English

    How has the political climate of boston changed since the beginning of the book? A. Previously, Bostonians considered themeselves loyal british subjects, but after parliament pass the tea act, they thought of themeselves as citizens of an independent

  179. Algebra 2

    write a quadratic function in vertex form. write the equation for the axis of symmetry of the parabola.

  180. Algebra 2

    solve for x: ax +by =c.

  181. Algebra I

    5. Holly wants to invest $1000. The table below shows the value of her investment under two different options for two different years: Part A: What type of function, linear or exponential, can be used to describe the value of the investment after a fixed

  182. math

    Q. The city bus is 45 feet long and 10 feet wide, the maintenance crew wants to paint two yellow strips around the outside of the bus. What will be the total length of the two yellow stripes. A. Do I divide or multiple?

  183. monroe

    Explain how you would use Excel to analyze this data and organize it to prepare a written repor

  184. math

    Solve the linear system graphically (Dont graph it just solve it) x+ 2y = 8 3x+ 4y = 20

  185. statistics HELP!

    A data set includes body temperatures of healthy adult humans for which 98.1F and s= 0.56F. What is the best point estimate of the mean body temperature of all healthy humans? Using the sample statistics, construct a confidence interval estimate of the

  186. chemistry. please help drboz222

    Calculate the oxygen ppm concentration of a 3.50 kg sample of lake water that comtains 2.34 mg of dissolved oxygen

  187. Tips Plz

    Can you plz tell me some studying tips for math. How can i study math? is not like the other subject that i can just read through and memorize it. Math is hard to study because i know know how to study math when i have a upcoming test. Plz give me tips on

  188. pre-algebra

    how do you rewrite rational numbers -0.56, -2.3,2.11, I do know where to start I'm a mom trying to help my son with his homework

  189. Math

    5^6 * 5^3= is this correct 1953125?

  190. Language Arts

    Which of the following is one of the most significant events in chapter VIII? A) Merchant Lyte's sickness B) James Otis's speech C) Lavinia asking the soldier to get Dr. Warren for her father D) Dr. Warren lending his coach to Johnny Form the story Johnny

  191. excel

    You have been tasked with analyzing an extremely large amount of data and to ultimately produce a report to share with the Board of Directors. The data is currently in a text file and has over two thousand records of data. Explain how you would use Excel

  192. Math

    A ball of string is 23m long. 8.3m is cut off. A further 3.49m is cut of string is left?

  193. 5th grade math

    rachel wants to reduce the size of her photo. Which factor listed below would scale down the size of her picture the most? A. 5/8 b. 11/16 c. 3/4 d. 8/5 trying to help my son with his math …have no idea about this.. could someone explain it to me?

  194. calculus

    A 25-ft ladder rests against a vertical wall. If the bottom of the ladder slides away from the wall at a rate of 0.18 ft/sec, how fast, in ft/sec, is the top of the ladder sliding down the wall, at the instant when the bottom of the ladder is 20 ft from

  195. math

    You have been tasked with analyzing an extremely large amount of data and to ultimately produce a report to share with the Board of Directors. The data is currently in a text file and has over two thousand records of data. Explain how you would use Excel

  196. grand caynon PSY

    how has psychology been impacted by the philosophical and religious theories of child rearing?

  197. algebra

    What is the equation in standard form of a parabola that models the values in the table? x -1 0 2 f(x) 12 5 15

  198. Math

    How to simplify? log(1/2)2 + log(1/2)2^(1/2)

  199. english 10th

    How does an open question differ from a closed question?

  200. L. arts

    Johnny Tremain How does Rab's reaction to Johnny's hand compare to that of other people's? A. like others, Rab is horrified B. While others react with disgust or pity, Rab ignores the injury until Johnny mentions his band hand C. Rab expresses great pity

  201. English

    The is the sentence I'm uncertain about: These old journals are wonderful to learn what life was like a century ago. I know the infinitive is 'to learn.' I think it is being used as an adverb. It's modifying the adjective 'wonderful.' It's not a noun used

  202. math

    8,18,28,38,48 determine the next sequence. Is the answerer 58?

  203. Physics

    An airliner lands with a speed of 48.5 m/s. Each wheel of the plane has a radius of 1.25 m and a moment of inertia of 110 kg · m2. At touchdown, the wheels begin to spin under the action of friction. Each wheel supports a weight of 1.40 ✕ 104 N, and the

  204. Math

    given the function f decribed by f(x)=-x-6, find f(-7)=?

  205. chemistry

    matts moped holds 1.9 gal of gas how many milliliters is that show work

  206. math

    Mark Jacobs, owner of Jacob's Mini-Mart currently operates two stores in Atlanta. His business has been very successful, and he is now opening two new stores. He will no longer be able to manage all stores himself, so he is hiring managers for three of the