Questions Asked on
October 1, 2013

  1. Science- Significant Figures

    You calculate the area of a 150m x 100.0 m room. How many significant figures should your answer include? a. 1 b. 2 c. 3 d. 4 2?

    asked by Anonymous
  2. Pre-Calculas 11

    a farmer wants to build two pens (one for cows, the other for horses) on land by a straight road. There is already a fence along the road and the farmer has 800m of fencing to build his fence to enclose the pens and separate them as shown in the diagram

    asked by Ravneet Gill
  3. Chemistry

    A tubular fluorescent lamp in a fully evacuated supply compartment on the international space station was originally filled with a small amount of mercury vapour. When the lamp began to flicker the astronauts complained there was a tiny hole in the tube.

    asked by Nancy
  4. Chemistry

    Determine the molecular formula of phosphorus. phosphorus gas has a density of 0.617 g/L at 70 and 200 Celsius ...

    asked by Lisa
  5. MATH

    The quadratic equation x2 + mx + q = 0, where m and q are real numbers, has the complex root a + bi. Which of the following must be equal to m?

    asked by Anonymous
  6. Chemistry

    The isotopic abundance of naturally occurring hydrogen is as follows: 1H 99.985 atom % 2H 0.015 atom% When H2 gas is formed from naturally occurring hydrogen, what percentages of the molecules have molecular weights of approximately 2, 3 and 4?

    asked by Jane
  7. math

    59+20=

    asked by gretika
  8. physics

    A block of mass m1 = 13.5 kg rests on a wedge of angle θ = 27∘ placed over a table.. An inextensible string is attached to Block M1, passes over a frictionless pulley at the top of the wedge, and is then attached to another block of mass M2 = 3 kg. The

    asked by ss01
  9. physics

    For circular motion in the vertical plane, what is the centripital acceleration at the bottom of the circle? What is the magnitude of the centripetal acceleration at the top of the trajectory ? express your ans. in terms of g, M and T, where is T is

    asked by ss01
  10. physics

    A block of mass m = 14 kg is pressed with a horizontal force F against a frictionless ramp of angle θ = 78∘. What is the magnitude of the normal force exerted by the incline surface on the block?

    asked by ss01
  11. History

    When was the height of Egyptians, Athenians, Alexander's empire, and Roman Empire? I am having hard time finding the exact or round about year to these. I've found two so far, but I am sure if its right. please help so i can study for my test! thank you!

    asked by JJ
  12. maths

    When the function f(x) is equal to 2xn + ax2 - 6 is divided by (x-1), the reminder is -7 and when divided by (x+3), the reminder is 129. Calculate the value of "a" and "n" and hence write the polynomial function completely.

    asked by Shane
  13. History

    Which group is most associated with the fall of the Western Roman empire? Was it Carthaginians, Gauls, Huns, or the Greeks?? I thought it was Egypt or Visigoths but my answer came back as wrong :(

    asked by JJ
  14. math

    The cost of a telephone call is $0.75 + $0.25 times the number of minutes. Write an algebraic expression that models the cost of a telephone call that lasts t minutes. i got C= 0.75 + 0.25t am i correct? pls help if im not :( and show me how u got the

    asked by lisa
  15. maths

    can you pls tell the formulas in binomial theorem

    asked by ether
  16. VNS,Math

    In Gulshan the ratio of private homes to apartment is 3:5. If all the apartments are brick made and 1/10 of the private homes are wooden, what is the maximum portion of houses that may be brick?

    asked by Nahar
  17. physics

    What would the density of a sphere of radius 1.07 m have to be in order to produce a gravitational acceleration of 1.01 m/s2 at the surface of the sphere?

    asked by Erica
  18. Math

    If Anna is 5 ft tall. How tall is she in centimeters and what is the rate?

    asked by Janet
  19. social studies

    determine the capitol budgeting in global business

    asked by tasha
  20. Chemistry

    Hi, This is a challenge question for my intro chemistry class and I'd really like to do it. Its in 2 parts. 1. Consider a 2790-lb automobile clocked by law-enforcement radar at a speed of 85.5 mph (miles/hour). If the position of the car is known to within

    asked by bridget
  21. Chemistry

    For the following reaction KClO4 → KCl + 2O2 Assign oxidation states to each element on each side of the equation. Reactant Product K Cl O Which element is oxidized? Which element is reduced?

    asked by Oluwafemi
  22. History!

    ***IGNORE THE CHARTS/GRAPH QUESTIONS!! UNLESS YOU KNOW THE ANSWER OR HAVE SEEN THE CHARTS! THANKS!! :) *** For whom was South Carolina named? (1 point) Queen Caroline King Charles I**** King Charles II Queen Elizabeth 2. What is an important reason to

    asked by marie
  23. Physics

    A small airplane has a speech of 200km/h with respect to the air. There is strong wind blowing at 77km/h at 23 north of east with respect to the Earth . A) in which direction should the plane head in order to land at an airport due north of its present

    asked by Maria
  24. math

    Is 7 the squarre of 49? I know its the square root .But are square and square rooot the same?

    asked by deedeee
  25. English !!!

    What could be some flaws of discrimination (black people)?

    asked by vickie
  26. English !!!

    What could be the flaws of all men are equal to vote?

    asked by vickie
  27. music (Anyone)

    who knows 2 same pieces of music but have different performers?

    asked by Sara
  28. chemistry

    What equation will you use to calculate the heat of fusion of ice? The specific heat of water is 4.184 J/(gx°C), and the heat capacity of your calorimeter is 1.0x10^1 J/°C.

    asked by Stephanie
  29. Math

    What is the square root of 693 divided by the sum of pi and Avagadro's number

    asked by Robin
  30. Chemistry-

    If I was trying to find out the number of molecules(N) using moles x avogadro's number, what units would N have?

    asked by Nancy
  31. English

    can anybody give me examples of beliefs i have a few but i need more

    asked by francine
  32. English

    Writeacher,i can't understand these lines!These lines are of julius caeser and it seems very difficult to understand!plz make me clear! Go bid the priest do present sacrifice and bring me their opinions of success,

    asked by help()!!!!!
  33. physics

    What is the self-inductance of an air-core solenoid,1m long and 0.05m in diameter,if it has 1400 turns?(a)5.23mH(b)4.84mH(c)3.63mH(d)2.42mH

    asked by Roy
  34. Chemistry

    Aluminum carbide, Al2C3 (s), reacts with water to yield aluminum hydroxide, Al(OH)3 (aq), and methane, CH4 (g). Write the equation for the reaction. How many grams of Al4C3 (s) would be needed to prepare 1.000 L of CH4 (g) measured at STP?

    asked by Cris
  35. Calc

    Two commercial airplanes are flying at an altitude of 40,000 ft along straight-line courses that intersect at right angles. Plane A is approaching the intersection point at a speed of 427 knots (nautical miles per hour; a nautical mile is 2000 yd or 6000

    asked by Anonymous
  36. Calc

    Two commercial airplanes are flying at an altitude of 40,000 ft along straight-line courses that intersect at right angles. Plane A is approaching the intersection point at a speed of 427 knots (nautical miles per hour; a nautical mile is 2000 yd or 6000

    asked by Anonymous
  37. worldwide issues

    If money wasn't used on electronic warfare how would our lives be different?

    asked by deedeee
  38. General Physics

    A 6 kg flower pot falls from a window ledge 10 meters above the ground. a) What is the Kinetic Energy of the flower pot just as it reaches the ground? b) What is the speed of the flower pot just before it strikes the ground?

    asked by Azerfiti
  39. health

    what are some mental or emotional problems i can research

    asked by help
  40. Physics

    A 10-kg mass is projected straight up with a speed of 20.0 meter/second. 1. Find the initial kinetic energy of the mass 2. To what height does the mass rise?

    asked by Anonymous
  41. C/J

    Which of the following is sometimes held to be the only event for which there is no cause? a.freewill b.emotions c.viruses d. moral character Is it free will not sure

    asked by Robby
  42. physics

    What would the density of a sphere of radius 1.07 m have to be in order to produce a gravitational acceleration of 1.01 m/s2 at the surface of the sphere?

    asked by Erica
  43. Maths

    Two candidates A and B are up for election. A is so popular that the number of votes for B is expected to be less than or equal to 10% of A's votes. If the total number of votes for both candidates is 110 , what is the minimum number of votes we could

    asked by CHRIS
  44. English

    In the following sentence identify the appositive or appositive phrase and the noun or pronoun defined by the appositive. Mr. Murray, the Scoutmaster, likes to hike. Appositive? Noun or pronoun defined?

    asked by Chloe
  45. Chemistry (balancing eq)

    I need to write a formula where PbNa reacts with water. 2PbNa + 2 H20 = 2 NaOh + H2 +Pb It says in the question that lead doesn't react with water, but Na does. Did I write the formula correctly?

    asked by Kristine
  46. Algebra/radical expression

    (4-3sqrt2)^2 simplify. Is it 16-9•2sqrt2 (7)2sqrt2 ???

    asked by Taylor95
  47. math

    17000 at 2.5% for 5 year show much inter trust would you have ?

    asked by Anonymous
  48. Health

    What is intensity?

    asked by jessica
  49. Geography (Ms. Sue)

    Where are each of these countries (Germany, France, Italy, United Kingdom, and Spain) located, relative to the rest of Europe? What pattern do you notice? I do not know the answer whatsoever.

    asked by Anonymous
  50. geography

    what does mexico's city site on top of the aztec city suggest about the location?

    asked by jessica
  51. Chemistry

    The capacity of the groundwater treatment plant has recently been expanded to receive an additional 50,000 m3/year. As a result, all of the 6 rapid sand filtration are being operated. Assume a peak flow factor of 1.5. If the filtration rate is 5 m/h, what

    asked by WT
  52. Chemistry

    If the RQ is 6 and the k2t is 4, what is the removal efficiency of (CO2) of the co-current tower aerator. What will be the efficiency if a tower aeration with counter current flow is used instead? what is the efficiency of the co-current tower aerator (%):

    asked by WT
  53. Chemistry

    Currently the removal of CO2 is too low and it has been proposed to change the deep well aeration with a co-current tower aerator. select the advantages of using deep well aeration from the below: Very high O₂ transfer within an exceptionally small space

    asked by WT
  54. English

    The President sent the ambassador an invitation to the meeting. What is the correct sentence pattern?

    asked by Michaela
  55. physics

    Kim is in a boat traveling 3.8 m/s straight across a river 240 m wide. The river is flowing at 1.6 m/s. What is Kim's resultant velocity?

    asked by Alex
  56. biochemistry

    substrate concentration= 3.5mM (c2) buffer=0.4 ml 10mM PNPP stock= ?ml (V1) water=?ml enzyme= 0.2ml total volume =1ml (V2) I need help with a dilution, I understand that you would be using c1v1=c2v2 but im confused as to what we need to find the amount of

    asked by greg
  57. English

    Is this grammatically correct? Based upon a country sustained by ritual and tradition, this episode features a masked, villainous wrestler, known as Hombre sin Nombre, who reinvents himself for the sake of his family; a sorceress, referred to as Chef

    asked by Anonymous
  58. science

    When you merge cells, what happens?

    asked by rockrboiluvr
  59. complit

    What is a spreadsheet used for?

    asked by drukadurka
  60. current events

    I am turning twenty-six on Tuesday October Eighth. I have a grace period from the insurance company that I can stay on for a while after my birthday. When should I start signing up for this brand-new health care program? Even after you apply, is there a

    asked by Brandon
  61. chemistry science

    substrate concentration= 3.5mM (c2) buffer=0.4 ml 10mM PNPP stock= ?ml (V1) water=?ml enzyme= 0.2ml total volume =1ml (V2) I need help with a dilution, I understand that you would be using c1v1=c2v2 but im confused as to what we need to find the amount of

    asked by greg
  62. psy/315

    I need someone to help me answer this question please. What is the five-step process for hypothesis testing, and explain the procedure and logic for each.

    asked by SADE
  63. History!!

    PLEASE PLEASE PLEASE HELP ME!!

    asked by Marie
  64. physics

    A block is at rest on the incline shown in the figure. The coefficients of static and ki- netic friction are μs = 0.45 and μk = 0.38, respectively. The acceleration of gravity is 9.8 m/s2 . What is the frictional force acting on the 25 kg mass? Answer in

    asked by Anonymous
  65. English 11

    Please help?! 9. Which of the following is NOT a primary source from early american and colonial literature? -The song of hiawatha -"sinners in the hands of an angry god" -the federalist papers -notes in the state of virginia

    asked by Alisa
  66. Chemistry

    A 7.85 g sample of a compound with the empirical formula C5H4 is dissolved in 301 g of benzene. The freezing point of the solution is 1.05C below that of pure benzene. what are the molar mass and molecular formula of this compound?

    asked by niki
  67. math - calc

    A conical water tank with vertex down has a radius of 12 feet at the top and is 26 feet high. If water flows into the tank at a rate of 30 {\rm ft}^3{\rm /min}, how fast is the depth of the water increasing when the water is 12 feet deep?

    asked by Greg
  68. math - calc

    A conical water tank with vertex down has a radius of 12 feet at the top and is 26 feet high. If water flows into the tank at a rate of 30 {\rm ft}^3{\rm /min}, how fast is the depth of the water increasing when the water is 12 feet deep?

    asked by Greg
  69. aLGEBRA 2 help please would appreciate

    x+x/4=25/6 find x please show all the step thank you

    asked by lisa
  70. Math

    Find the rate in mph of someone who drove 12 miles in 45 minutes

    asked by Chuck
  71. aLGEBRA 2 help please would appreciate

    x/x+3 -x/x+3=x^2+9/x^2-9 solve for x and check your answers

    asked by lisa
  72. math

    How much will Pauline pay in interest if she takes out a simple interest loan with a principal of $3,900 at 7.2% for three years?

    asked by lauren
  73. physics

    a ball is thrown at a vertical velocity to an angle of 30 degree above the horizontal and rises to a maximum height of 50 meters.if the angle is tripled find the maximum height and the horizontal range of a projectile for the same intial velocity

    asked by Laila
  74. Math

    Emma is 5 years older than 6 times beth's age. If Emma is 29 years old how old is Beth?

    asked by Sarah
  75. alGEBRA 2 help please would appreciate

    x over (x+3) -x over(x-3)=x^2+9 over X^2-9 solve for x and check answer

    asked by lisa
  76. Physics

    A football is kicked off with an initial speed of 63 ft/s at a projection angle of 45 degrees. A receiver on the goal line 67 yd away in the direction of the kick starts running to meet the ball at that instant. What must be his minimum speed (in

    asked by 0tter
  77. Geography

    Hello, I am doing a presentation on the role and importance of rifts and ridges in the creation of continents. I am having a really hard time telling the difference between the two! I have researched them both and find them very similar...help! Thanks

    asked by Dawn
  78. math

    Paul an Peter each toss a coin and record the results. Paul: H H T H T H H H T T H H T H T H T H H T T Peter: H T H H T H H T T H T H ... ... If the probability of heads to tails was the same for both boys, what were peter's last two tosses?

    asked by Abbie
  79. math

    n!/n(n-1) is equivalent to? a) (n-2)! b) n-1 c) 1 d) 1/n-1

    asked by sam
  80. Physics

    A football is kicked off with an initial speed of 63 ft/s at a projection angle of 45 degrees. A receiver on the goal line 67 yd away in the direction of the kick starts running to meet the ball at that instant. What must be his minimum speed (in

    asked by 0tter
  81. Physics

    Nuclear fusion reactions require that positively charged nuclei be brought into close proximity, against the electrostatic repulsion. As a simple example, suppose a proton is fired at a second, stationary proton from a large distance away. What kinetic

    asked by BME
  82. Organic Chemistry

    What reagents will separate, isolate, and purify 50% phenanthrene, 40% methyl 4-aminobenzoate, and 10% 1,4-dibromobenzene? The reagents to chose from are: 1 M naoh, 6 M naoh, 1 M hcl, 6 M hcl, 1 M nahco3, saturated sodium chloride, diethyl ether, 95%

    asked by Ryan
  83. Precalc

    a weight on a vertical spring is given an initial downward velocity of 4cm/sec from a point 6 cm equilibrium. Assuming that the constant w has a value of 4, find the location of the weight 1 sec after it is set in motion.

    asked by Anonymous
  84. math

    In how many ways can 5 books be arranged on a shelf If 2 of the books are identical?

    asked by sam
  85. Algebra/geometry

    Find te equation in slope-intercept form of the line that is the perpendicular bisector of the segment between (-3,4) and (3,-8).

    asked by Taylor95
  86. physics

    The left-hand cable has a tension T1 and makes an angle of 50 degree with the horizontal. The right-hand cable has a tension T3 and makes an angle of 43 degree with the horizontal. A W1 weight is on the left and a W2 weight is on the right. The cable

    asked by Kelly
  87. Early childhood Ed

    V in vark means

    asked by Lind
  88. Astronomy

    Each time period corresponds with an event in the list below labeled a to e. Starting with the earliest time period (10^−34 s), list which time period corresponds to which event. For example if you think the times at 10^−34 s, 10^−12 s, 10^−10 s, 3

    asked by qwerty
  89. Math

    Mr. Singh deposited $170 in his bank. The number of $5 bills was three times the number of $10 bills and the number of one dollar bills was 30 more than the number of five dollar bills how many bills of each type did he deposit

    asked by Valentina
  90. Astronomy

    Why didn’t the Universe collapse into a black hole in the past when there was so much matter in such a small space? (a) Most of the particles in the early Universe were unstable and decayed before a black hole could form. By the time only stable

    asked by qwerty
  91. Astronomy

    Where did CMB radiation originate? (a) It is the radiation from the electroweak phase transition when the weak force was spon- taneously broken by the Higgs mechanism. (b) It is radiation from supernovas in the early Universe that produced the heavier

    asked by qwerty
  92. Astronomy

    How do we image dark matter? (a) We see light from galaxies behind the bullet cluster that is bent (gravitationally lensed) due to the matter (regular and dark) in the bullet cluster. (b) We see light from the gas in the two bullet cluster galaxies and we

    asked by qwerty
  93. Astronomy

    Now imagine you’re an astronomer on Earth looking at the spectrum of an object in space. In the spectrum you are looking for the so-called Lyman- alpha line of hydrogen which occurs at a wavelength of  = 122 nm. In your telescope, you observe the Lyman-

    asked by qwerty
  94. Astronomy

    Which of the below statements about the CMB are true? (i) The “hot” and “cold” spots are areas where photons have slightly more or less energy than average. (ii) It shows that the Universe was accelerating at the time the CMB formed, thus measuring

    asked by qwerty
  95. Astronomy

    What were the relative energy densities in the early Universe? (below, DE means dark energy) (a) They remain roughly equal: rad ∼ mat ∼ DE (b) DE > mat > rad (c) rad > mat > DE (d) mat > rad > DE

    asked by qwerty
  96. Astronomy

    The Universe is filled with a frozen in Higgs condensate. If this were to suddenly disappear/evaporate, what would happen? (a) All bound matter—nucleons (made of quarks), nuclei (made of nucleons), atoms (made of nuclei and electrons), people (made of

    asked by qwerty
  97. Astronomy

    What percentage of the energy budget do electrons occupy? Take the energy budget occupied by matter to be 4.4%. (a) 3.9% (b) 0.1% (c) 0.03% (d) 0.002%

    asked by qwerty
  98. Math

    There are X number of people living in a house.three less than four times the number of people is forty one .how many people lives in the house?

    asked by Kirandeep
  99. Astronomy

    How the asymmetry between matter and anti-matter in our Universe might be generated. Why might neutrinos be a key player in achieving this? (a) We already know neutrinos can morph from one neutrino type to another. It is possible, although not certain,

    asked by qwerty
  100. Emily

    1.)Dylan has $2.30 and dimes and nickels The number of dimes exceeds the number of Nichols by five find the number he has a each. 2.) A coin purse contained $4.70 in Nickels and quarters there are 30 Coins in all how many of each kind of there. 3.)

    asked by Anonymous
  101. Math

    Twice the sum of a number and 4 is equal to 22. What is the number?

    asked by Kirandeep
  102. ALGEBRA 2 help please would appreciate

    x x _____ - _____ = x^2+9 ________ x+3 x-3 X^2-9 solve for x. and check answer thank you show work please

    asked by lisa
  103. Math

    There are X number of leaves on a fig branch .two more than 0.25x is six.how many leaves are on the fig branch?

    asked by Kirandeep
  104. Chemistry

    according to the balanced chemical equation 2SO2

    asked by lanony(please help)
  105. aLGEBRA 2 help please would appreciate

    X over X+3 subtract X over X-3 = X^2 + 9 over X^2 -9 solve for x. show all work thank you

    asked by lisa
  106. world geography

    Imagine you are an elected official with the responsibility of drafting legislation designed to protect our environment. What items will you include in your bill? Who will be responsible for the bill's implementation? Its enforcement

    asked by Tiffanie
  107. Algebra / geometry

    In the box shown at the right, what is th length of the dashed line? There is a picture of a cube with a dashed line going through it diagonally. On top of the box a side is marked 12cm, on the side 8cm, and bottom 9cm.

    asked by Taylor95
  108. Math

    Accentuate the Negative. This is Charlene, Angeliques' Nana. Please show me How I can get to the correct answer. [-80 + 2] = N

    asked by Angelique
  109. physics

    Help please ! been stuck on this for hours. A model rocket blasts off and moves upward with an acceleration of 13m/s^2 until it reaches a height of 25m , at which point its engine shuts off and it continues its flight in free fall. 1) What is the maximum

    asked by Melissa
  110. Chemistry- moles

    How do I determine the number of hydrogen atoms in .0885 mol Tetracarbon decahydrogen?

    asked by Lisa
  111. Science

    How far does any object on Earth fall after being in free fall for 7.5 seconds? Remember g=9.81 m/s2

    asked by Stephanie
  112. algebra1

    the problem is 5f+7 less than or equal to 22. can anyone please work this out for me and check it for me? and what i mean by checking it is like when you get the answer you check it and make sure its write.

    asked by erica
  113. algebra

    multiply and simplify 7^3 X 7^9

    asked by John
  114. math

    Gaussian elemination back substitution x+2y+3z=-5 2x+y+z=1 x+y-z=8

    asked by Anonymous
  115. pysics

    A dockworker loading crates on a ship finds that a 17-kg crate, initially at rest on a horizontal surface, requires a 71-N horizontal force to set it in motion. However, after the crate is in motion, a horizontal force of 57 N is required to keep it moving

    asked by kassidy
  116. Geometry

    What is the precision for 72 cm

    asked by Dey
  117. Algebra

    Please help! 1) -6x(1-4x) + 5(3x-8) 2) 8(-4+7n) + 6n(2n-7) 3)4(3v+1) - 8v(1-8v) 4)4x(7+5x) - 8(-x - 7)

    asked by Sue
  118. Algebra graphs

    I had to find the distance between to locations on a graph which I did using the distance formula I got sqrt281 from point a (-6,3) point b (10,9). The problem is each unit is approximately 1/8 of a mile. Now what? Round your answer to the nearest tenth of

    asked by Taylor95
  119. 4th grade math

    Endangered species Group number clams 62 birds 14 more than clams mammals 9 fewer than birds fish 70 insects half as many as fish reptiles 21 fewer than insects snails 10 more than reptiles Write an inequality to compare the number of endangered birds and

    asked by mythreyee
  120. Math

    I've been having trouble with these four problems. Please help. 1)-8n(6 - 7n) + 2(3n - 8) 2)-3k(-8k - 6) - 5(-8k + 8) 3) -5a(a - 1) - (4a + 8) 4)-4(b - 3) - 8(b - 2)

    asked by Lisette
  121. algebra

    what is the advantage of having a magnetic bulletin board

    asked by tad
  122. Science

    An astronaut on a space walk bumps the shuttle and starts moving away at a velocity of 0.02m/s. The astronauts mass is 100kg. He has takes a 1kg "safety week" and shoves it away in exactly the direction of his motion at a speed of 6m/s. What speed does the

    asked by Please help me.
  123. Physics

    A bullet is fired straight up from a gun with a muzzle velocity of 259 m/s. Neglecting air resistance, what will be its displacement after 8.9 s? The acceleration of gravity is 9.8 m/s 2 . Answer in units of m. Please show work

    asked by Eren
  124. us history

    Which of the following is true of the Spanish-American War? A. Racial tensions were suspended for the duration of the war. B. About one in ten American soldiers were black. C. Black soldiers referred to black Cubans as "Smoked Spaniards." D. The black

    asked by Sierra
  125. Physics 12

    A flag of mass 2.5 kg is supported by a single rope as show in figure 13. a strong horizontal wind exerts a force of 12 N on the flag. Calculate the tension in the rope and the angel, the rope makes with the horizontal. here is the figure:

    asked by Lola
  126. Developmental Psychology

    What is the difference between internal and external validity?

    asked by Debi
  127. Math Explanation problem

    How does adding partial products help you solve a multiplication problem?

    asked by Evan
  128. Physics

    In a phsics experiment, a 1.3 kg dynamics cart is placed on a ramp inclined at 25 degrees to the horizontal. the cart is initially at rest but is then pulled up the ramp with a force sensor. the force sensor exerts a force on the cart parallel to the ramp.

    asked by Lola
  129. Physics

    In a phsics experiment, a 1.3 kg dynamics cart is placed on a ramp inclined at 25 degrees to the horizontal. the cart is initially at rest but is then pulled up the ramp with a force sensor. the force sensor exerts a force on the cart parallel to the ramp.

    asked by Lola
  130. Statistics

    The soccer team's shirts have arrived in a big box and people start grabbing them. The box contains 7 medium, 12 Large, and 11 extra-large shirts. What is the probability that the first 4 shirts are all extra large? I have been struggling with the problem

    asked by Nick
  131. Math help!

    1.(g + 4) - 3g = 1 + g 1 4 No solution Identity 2. 5y + 2 = 1/2(10y + 4) 5 10 No solution Identity 3. 0.5b + 4 = 2(b + 2) 0 0.5 No solution Identity 4. -3x + 5 = -3x + 10 5/6 -5/6 No solution Identity My answers: 1. 1 2. Identity 3. 0 ??? Not sure 4. No

    asked by Charlotte
  132. Math

    The Johnsons have accumulated a nest egg of $27,000 that they intend to use as a down payment toward the purchase of a new house. Because their present gross income has placed them in a relatively high tax bracket, they have decided to invest a minimum of

    asked by Joe
  133. MATH

    -1/4 + 3/4 = -1 -4/9 - 1/9 = -1/3 Are my answers correct

    asked by AMERICAL
  134. math

    Suppose there are 100 rabbits on an island and that the rabbit population can triple every half-year. Write an equation you could use to find the number of rabbits, R, after t, years. Using your equation, determine the amount of rabbits on the island in

    asked by Monica
  135. Algebra

    The base of rectangle is 3cm more than twice the height the perimeter is 60cm find the base and height of the rectangle

    asked by Raman
  136. math

    The probability that Mary will do her math homework is 0.6, that she will go to a movie 0.7 and that she will do neither is .2. What is the probability that she will go to a movie and do her homework?

    asked by Anonymous
  137. Math

    A total of 68 awards will be given to the soccer team. Each box holds 8 awards. How many awards are in the partially filled box?

    asked by Alyssa
  138. maths

    Find the distance between –1 and 1.

    asked by Anonymous
  139. Math

    Suppose you copy the Circe using a size factor of 150% what will be the radius ,diameter ,circumference and the area of the image

    asked by Mandy.
  140. Math

    There are 62 students in a football league. How many teams of 6 can they make.

    asked by Erica
  141. physics

    This is an example question which I have the answer to but can not seem to get the same answer through my workings, any help with the equation would be great. A particular task exposes the operator to alpha radiation at an average dose of 200 ìGy each

    asked by sarah
  142. Math

    My math homework question stated : Jaske completed a marathon race in 3 hours and 12 minutes. Write Jakes running time as a decimal. Am I correct. Thanks Answer 3.12

    asked by AMERICAL
  143. Physics

    A car makes a 288 km trip at an average speed of 31.3 km/h. A second car starting 1 h later arrives at their mutual destination at the same time. What was the average speed of the second car for the period that it was in motion? Answer in units of km/h

    asked by alison
  144. physics

    Simpson drives his car with an average veloc- ity of 49.7 km/h to the east. How long will it take him to drive 150 km on a straight highway? Answer in units of h

    asked by alison
  145. math

    write each addiction vertically. decide which new groups you will make. then add to see if you were correct. 256+1.273 A new ten? A new hundred? A new thousand?

    asked by sara
  146. Statistics

    In an Intro Stats class, 57% of students eat breakfast in the morning and 80% of students floss their teeth. Forty-six percent of students eat breakfast and also floss their teeth. What is the probability that a student from this class flosses his/her

    asked by Lisa
  147. Physics

    How much time would Simpson save by in- creasing his average velocity to 65.8 km/h to the east? Answer in units of min

    asked by alison
  148. Algebra 1

    -31=8-6p-7p Can you show work

    asked by Jynessa
  149. Math

    A marching band has 36 members. What arrangement could they use in order to have equal numbers of players in each row?

    asked by Anonymous
  150. Algebra maths

    The base of rectangle is3cm than twice the height. The perimeter is 60cm find the base and height of a rectangle

    asked by Raman
  151. Astronomy

    Basically the ``Bohr radius'' for the dark matter is rB=ℏ^2 / GN M m^2 where m is the dark matter mass, M is the total amount of dark matter mass contained inside the ``gravitational atom'', and ℏ and GN are constants as usual. Taking the dark matter

    asked by qwerty
  152. Physics

    If Joe rides south on his bicycle in a straight line for 29 min with an average speed of 14.8 km/h, how far has he ridden? Answer in units of km

    asked by alison
  153. adv algebra hw

    Let x,y,z be positive real numbers such that: xyz=945 x(y+1)+y(z+1)+z(x+1)=385. What is the minimum possible value of z+y/2+x/4?

    asked by bob
  154. 6th grade grammar

    I'm getting confused on finding prepositional phrases. Can you check my homework, please? Directions: Put a 'P' above the preposition. Circle object of preposition. Put a 'M' above any modifiers. Put () around prepositional phrase. 1. After we cut the

    asked by Alex
  155. maths

    1.[x + 3] = 2x + 1 A. 2 B. -4/3 C. 2, -4/3 D. 2, 4/3 2.[2x – 7] = 3 A. 5, 2 B. 5, –2 C. –5, 2 D. –5, –2 can someone explain for me plzzzzz.

    asked by Anonymous
  156. math

    Given the set (1,2,3,4,5) how many 3-digit numbers can be formed if the first digit is 5 and no digit is repeated?

    asked by sam
  157. math

    The probability of rolling an even number of a die and drawing a red marble from a bag containing 3 red marble and 5 green marbles must be expressed as a reduced fraction of the form a/b what is the value of a and b?

    asked by sam
  158. Math

    Write the sentence as a proportion. Then solve the proportion * d is to 4 as 32 is to 56

    asked by Helen
  159. aLGEBRA 2 help please would appreciate

    X over X+3 subtract X over X-3 = X^2 + 9 over X^2 -9 solve for x. show all work thank you

    asked by lisa
  160. social justice

    What is the fundamental difference between lifestyle branding and past forms of branding?

    asked by -
  161. Physics

    A car accelerates uniformly from rest to a speed of 23.9 km/h in 8.2 s. Find the distance it travels during this time. Answer in units of m

    asked by Jason
  162. social justice

    how do you think globalization relates to the kind of large multinational corporations?

    asked by -
  163. Physics

    A boy sledding down a hill accelerates at 1.24 m/s2 . If he started from rest, in what distance would he reach a speed of 8.88 m/s? Answer in units of m

    asked by Brandon
  164. Physics

    An elevator is moving upward 1.17 m/s when it experiences an acceleration of 0.33 m/s2 downward, over a distance of 0.75 m. What will its final speed be? Answer in units of m/s

    asked by Kev
  165. physics

    A car enters the freeway with a speed of 6.4 m/s and accelerates uniformly for 2.9 km in3.4 min. How fast is the car moving after this time? Answer in units of m/s

    asked by Randall
  166. Math

    Round each decimal number to the nearest hundredth. 1. 8.456 answer 8.460 2. 3.262 answer 3.260 3. 8.902 answer 8.900 4. 6.551 answer 6.550 5. 7.843 answer 7.840 6. 9.479 answer 9.480 7. 12.007 answer 12.010 8. 10.502 answer 10.500 9. 0.052 answer 0.050

    asked by Cassidie
  167. math

    Researchers discovered a large group of krill that was more than 30,000 feet long.About how long is 30,000 feet measured In the number of krill .

    asked by nayla
  168. physics

    After 10.3 s, a jogger’s displacement is 360 m. What is the average velocity in m/s? Answer in units of m/s part 2 What is the average velocity in km/h? Answer in units of km/h

    asked by alison
  169. science

    in each duagram a black circle represents a[particle of salt . white circle represents particles of water. which diageram coorecctly showws a solution

    asked by maria
  170. Algebra please help!

    I had to find the distance between to locations on a graph which I did using the distance formula I got sqrt281 from point a (-6,3) point b (10,9). The problem is each unit is approximately 1/8 of a mile. Now what? Round your answer to the nearest tenth of

    asked by Taylor95
  171. pre-algebra

    Can you help

    asked by Ethan
  172. Algebra (Steve!)

    In the box shown at the right, what is th length of the dashed line? There is a picture of a cube with a dashed line going through it diagonally. On top of the box a side is marked 12cm, on the side 8cm, and bottom 9cm.

    asked by Taylor95
  173. Chemistry

    Convert 355.3 kg to tons. I start the problem: 355.3 kg to 1 kg then 1 x 10 to the third power, then I have 1g. My problem is that I don't know what to do with my 1 g. What is the next step?

    asked by Rachel
  174. Math

    A yard measures a x b feet the swingset space is a x c feet how much lawn is left after swing set

    asked by Lisa
  175. Algebra 1

    6.4+2.1(z-2)=8.5 Can you show the work

    asked by Jynessa
  176. Fair Division-Apportionment

    I have to do a problem where : a) Find the standard division d b) Find the exact quotas for each of the republics c) Find the apportionment of seats using Hamilton's method The info is REPUBLIC: Argh Brwd Chrd Dstyr Eoia Population:7.65 4.45 8.52 9.98 6.51

    asked by Lynne
  177. World History

    Which of the following is not a reason for the collapse of classical empires? A. Small size of empire B. Large size of empire C. Invasions D. Diseases I know invasions is not the correct answer.

    asked by Anonymous
  178. Geography

    Name the state capitals the Seattle Seahawks will fly over en route to circle city ________ _ _ ; _________ _ _ P.s. HELP I have a bunch of questions!

    asked by Mia
  179. math (could you please help steve?)

    How many distinct ways are there to label the faces of a cube with distinct numbers from 1 to 6, such that there is at least one pair of opposite faces which do not sum to 7? Rotations (which preserve orientation) are considered the same way. Reflections

    asked by Anonymous
  180. math

    Sally and Marta had the same number of postcards. After Sally sold 18 of her postcards, Marta had 4 times as many postcards as Sally. How many postcards did each girl have to begin with?

    asked by Leah
  181. 2nd Grade REading

    I need a website that will give me ideas on how I can tutor my kids in Reading, Spelling and Pronouncing of words. But I need it to be in a manner that is fun and simple.

    asked by Qiayamah
  182. Math

    At the bake sale,pies were cut 8pieces and sold by the slice. At the and of the sale, there were 11 pieces left. How much pie is left? Write your answer in different way.

    asked by Anonymous
  183. Government

    Did the Taney court increase the power if the states

    asked by Anonymous
  184. Algebra Maths

    A local company is hiring trainees with less than 1 year of experience and managers with 5 or more years of experience. Solve the inequality and graph the solutions?

    asked by Raman
  185. algebra 1

    The sum of four consecutive integers is decreased by 30, the result is the fourth integer. Find the four integers.

    asked by Tracy
  186. Algebra 1

    what is the value of x in the rectangle Perimeter=24 meters the side is (x+3) The bottom is 2x

    asked by Katie
  187. social justice

    what is the difference in older forms of corporate censorship and how it looks today?

    asked by -
  188. Physics

    A 2.0 mm diameter copper ball is charged to +42 nC. What fraction of its electrons have been removed? The density of copper is 8,920 kg/m3

    asked by Caitlin
  189. Nfl

    The Detroit lions will cruise to their game by sailing north on the ------- river across lake -- ----- Up the -- ----- river across lake ----- through the straits of -------- a Ross the north end of lake -------- around the tip of the door peninsula and

    asked by Mia
  190. Chemisry

    The amount of I3–(aq) in a solution can be determined by titration with a solution containing a known concentration of S2O32–(aq) (thiosulfate ion). The determination is based on the net ionic equation Given that it requires 32.9 mL of 0.330 M

    asked by DeJanee
  191. Math Fractions with negatives

    1. 1/6+5/7=6/7 2. 3/10+3/10=3/5 3. 2/9+(-4/9)=-2/9

    asked by Jerald
  192. physics

    0.5 mol of salt (NaCl) is dissolved in 4.5 mol of water. What is the increase in entropy

    asked by karim
  193. algebra

    2/8=x+2/72

    asked by jill
  194. physics

    If a woman lifts a 16.2 kg bucket from a well and does 6.33 kJ of work, how deep is the well? Assume that the speed of the bucket remains constant as it is lifted.

    asked by Chris
  195. Math with mixed numbers

    4. 2 1/6+8 3/6= 10 2/3 5. -2 4/5+(-2/5)= 3 1/5 6. 3 3/8+6 5/8=10

    asked by Jerald
  196. Physics

    Note: The left-hand mass is equal to the sum of the other two masses. A massless pulley is attached to the ceiling,in a uniform gravitational field, and rotates with no friction about its pivot. Another massless pulley is attached to the end of the cord on

    asked by DW
  197. Algebra 1

    23=2x+(x+3)+x I know the answer is 5 but I don't know how to show the work.

    asked by Katie
  198. Physics

    A block of mass 2.30 kg is pushed 2.38 m along a frictionless horizontal table by a constant 16.0 N force directed 26.9o below the horizontal. Determine the work done by the applied force. Determine the magnitude of the normal force exerted by the table.

    asked by Chris
  199. Math

    Not good with estimate here the question 24678 divided by 83

    asked by Jasmine
  200. algebra

    A video store charges a monthly fee of 7.50, but the charge to rent each movie is only 1.00 per movie. Another store has no membership fee, but it costs 2.50 to rent each movie. How many movies need to be rented each month for the total fees to be the same

    asked by jill
  201. Physics

    A 0.568 kg particle has a speed of 1.57 m/s at point A and kinetic energy of 7.67 J at point B. What is its kinetic energy at A? What is its speed at point B? What is the total work done on the particle as it moves from A to B?

    asked by Chris
  202. math

    On a blueprint in which 2 inches represent 5 feet, the length of a room mesure 7 1/2 inches. The actual length of the room is?

    asked by kate rapp
  203. Maths

    Can someone please help me -12>and equal to 24x

    asked by Alana
  204. chemistry

    For another picnic, you want to make hamburgers with pickles, again without having any left over. You need to balance the number of packages of buns (which usually contain 8 buns) with the number of packages of hamburger patties (which usually contain 12

    asked by Anonymous
  205. physics

    The drawing shows a 25.1-kg crate that is initially at rest. Note that the view is one looking down on the top of the crate. Two forces, 1 and 2, are applied to the crate, and it begins to move. The coefficient of kinetic friction between the crate and the

    asked by help please
  206. Math

    6. 3 3/8+6 5/8=10 7. 11/14-3/14= 8/14 8. (-1/8)-5/8=-3/4 9. 4/12-10/12=-1/2

    asked by Jerald
  207. Math

    Celsius to farenhet Find Celsius when it's -4 Fahrenheit

    asked by John
  208. Physics

    You are holding a bulletin board weighing 7.01 N in place against a wall while your friend secures it to the wall. To keep it from slipping, you apply a force perpendicular to the bulletin board, pressing it directly into the wall. How large must this

    asked by Erica
  209. math

    Find the measure of the largest acute angle in a 5-12-13 triangle.

    asked by Bre
  210. Physics

    Two identical cars (m = 1350 kg) are traveling at the same speed of 28.1 m/s. They are moving in the directions shown in the drawing. What is the magnitude of the total momentum of the two cars?

    asked by Megan
  211. Math

    Fahrenheit is -4 what is Celsius

    asked by John
  212. Math

    Solve for area of a trapezoid A= h(b1+b2) 2 Solve for b1

    asked by John
  213. Math

    Sum of 2 consecutive integers is 59. Write an equation that models that situation and find values of both integers

    asked by John
  214. US History

    What political influences shaped the governments of the British Colonies

    asked by Julia
  215. Math

    Length of a rectangle is 5 cm less than twice its width. The perimeter of the rectangle is 26 cm

    asked by John
  216. Math

    1. Yesterday Josh sold some boxes of greeting cards. If he sold 25 boxes in all, how many did he sell yesterday? 2. Jana baked some muffins. After she served 13 of them to her friends at brunch, she had 17 left. How many muffins did she make? 3. A scuba

    asked by Carmen
  217. Math

    21. 1/12- (-7/12)= 2/3 22. 9/20-(-7/20)=4/5 23. 8 9/10-6 1/10= 2 4/5 24. (-8 6/11)-(-2 5/11)= 7 25. (-4 5/8)-3/8= 4 1/4

    asked by Jerald
  218. Math

    Eight more than a number divided by 5

    asked by Cs
  219. social justice

    what are some of the social and economic consequences globally due to the shift to lifestyle branding?

    asked by alyssa
  220. Chemistry

    A 0.3146-g sample of a mixture of NaCl(s) and KBr(s) was dissolved in water. The resulting solution required 47.40 mL of 0.08765 M AgNO3(aq) to precipitate the Cl–(aq) and Br–(aq) as AgCl(s) and AgBr(s). Calculate the mass percentage of NaCl(s) in the

    asked by DeJanee
  221. Math

    A customer needs 88 ,2 inch pipe connectors to Complete a project. How many Bags of connectors would you recommend the customer purchase if each bag includes 25 connectors

    asked by Kim
  222. Math

    A customer needs 88 ,2 inch pipe connectors to Complete a project. How many Bags of connectors would you recommend the customer purchase if each bag includes 25 connectors

    asked by Kim
  223. physics

    what is the difference between impact distance and horizontal distance?

    asked by g
  224. Math

    What is an algebraic expression for "49 more than q"

    asked by Kaitlyn
  225. American History

    What does the Constitution not list the reserved powers of? The choices are Congress, President, state government, or national government

    asked by Jack
  226. Math

    Lindsey has 47 coins in her change purse that are either dimes or quarters. If n represents the number of quarters she has,write an expression in terms of n that describes the number of dimes

    asked by Kaitlyn
  227. Math

    Write an algebraic expression for "55 more than the product of 134 and n"

    asked by Kaitlyn
  228. Physics

    A particular task exposes the operator to alpha radiation at an average dose of 200 ìGy each time the task is performed. If the company needs the task performed once per day over a 250-day working year and the maximum occupational dose limit is 20mSv per

    asked by Sarah
  229. Physics

    I am having a bit of trouble with this one. A safety harness is connected to a cable with a report breaking stress of 800MNm-2. What mass could be hung from a harness if the diameter of the cable was 6mm? Any help would be great with the formula

    asked by Violet
  230. physics

    A cyclist maintains a constant velocity of 7 m/s headed away from point A. At some initial time, the cyclist is 259 m from point A. What will be his displacement from his starting position after 82 s? Answer in units of m

    asked by lexy
  231. physics

    A player is standing 12 meters to the right of a lamppost. He starts to walk with a constant acceleration of 2 m/s2 towards the lamppost. After 6 seconds, how far will the player be from the lamppost in meters?

    asked by Athremist
  232. physics

    A player is standing 12 meters to the right of a lamppost. He starts to walk with a constant acceleration of 2 m/s2 towards the lamppost. After 6 seconds, how far will the player be from the lamppost in meters?

    asked by Athremist
  233. math

    What are The fraction from least to greatest. 1/4, 0.7, 3/5

    asked by faye
  234. math

    What are The fraction from least to greatest. 1/4, 0.7, 3/5

    asked by faye
  235. physics

    A cyclist maintains a constant velocity of 7 m/s headed away from point A. At some initial time, the cyclist is 259 m from point A. What will be his displacement from his starting position after 82 s? Answer in units of m

    asked by lexy
  236. 8th Grade Physical Science

    Calculate the density of a sample of gas with a mass of 30 g and volume of 7500 cm3.

    asked by kirt