Questions Asked on
November 11, 2012

  1. Chemistry

    Which of the following electron configurations of neutral atoms represent excited states? ( ) [Xe]6s24f1 ( ) 2s2 ( ) 1s22s22p63s23p63d2 ( ) [Ar]4s23d3 ( ) [Kr]5s14d5

    asked by Garcia
  2. math help me pls

    1. Find the like terms in the expression y + 1.2y + 1.2z. (1 point)y and 1.2y 1.2y and 1.2z y and 1.2z y, 1.2y, and 1.2z 2. Simplify 2 + 17x – 5x + 9. (1 point)19x + 4 12x + 11 22x + 11 15x – 4 3. Simplify 3(5y + 6) – 4. (1 point)11y + 14 11y + 18

    asked by pls help me
  3. PHYSICS!!!

    The Venturi tube shown in the figure below may be used as a fluid flowmeter. Suppose the device is used at a service station to measure the flow rate of gasoline (ñ = 7.00 102 kg/m3) through a hose having an outlet radius of 2.72 cm. The difference in

    asked by k
  4. Physics

    A motorboat traveling at a speed of 2.1 m/s shuts off its engines at t = 0. How far does it travel before coming to rest if it is noted that after 2.7 s its speed has dropped to half its original value? Assume that the drag force of the water is

    asked by Anonymous
  5. Chemistry

    Select the true statements regarding the resonance structures of formate. HCO2 Check all that apply: Each oxygen atom has a double bond 50% of the time. The actual structure of formate is an average of the two resonance forms. Each carbon-oyxgen bond is

    asked by Anonymous
  6. math

    A Japanese beetle has a length between 0.3 and 0.5 inch. Find two lengths that are within the given span. Write them as fractions in simplest form.

    asked by anonymous
  7. Chemistry

    For each electron in a ground-state Be atom, select the set of quantum numbers that represents it. Check all that apply. ( ) n=2, l=0, ml=0, ms=+1/2 ( ) n=1, l=0, ml=0, ms=+1/2 ( ) n=2, l=1, ml=0, ms=-1/2 ( ) n=2, l=1, ml=1, ms=+1/2 ( ) n=2, l=0, ml=0,

    asked by Garcia
  8. chemistry

    A) Determine the concentration in molarity (M) of a crystal violet solution based on a measured absorbance of 0.545 at 590 nm at a path length of 1.0 cm . B) Based on your determined concentration (in molarity,M), how many milligrams of crystal violet were

    asked by confused chem. student
  9. Chemistry

    How many milliliters of a 0.20 M of glucose (C6H12O6) solution are needed to provide a total of 25.0 g. of glucose? Molarity(M)= Moles of Solute/Liters of Solution

    asked by Melia
  10. Physics HW, Help Please

    A 70.0 kg football player leaps straight up into the air (with no horizontal velocity) to catch a pass. He catches the 0.430 kg ball precisely at the peak of his jump, when he is 19.2 inches off the ground. He hits the ground 1.61 inches away from where he

    asked by Michael
  11. PHYSICS!!!

    Water moves through a constricted pipe in steady, ideal flow. At the lower point shown in the figure below, the pressure is 1.70 105 Pa and the pipe radius is 2.80 cm. At the higher point located at y = 2.50 m, the pressure is 1.22 105 Pa and the pipe

    asked by k
  12. College Math

    Fiona invested $1100 at 8% compound comtinously. At the same time, Maria ivested $1200 at 8% compounded daily. How long will it take for their investments to be equal in value?

    asked by Anonymous
  13. physics

    The skateboarder in the drawing starts down the left side of the ramp with an initial speed of 5.4 m/s. If nonconservative forces, such as kinetic friction and air resistance, are negligible, what would be the height h of the highest point reached by the

    asked by Donald
  14. PHYSICS!!!

    A pipe carrying 20°C water has a diameter of 3.6 cm. Estimate the maximum flow speed if the flow must be streamline. Answer in cm/s

    asked by k
  15. statistics

    The Intelligence Quotient (IQ) test scores for adults are normally distributed with a mean of 100 and a standard deviation of 15. What is the probability we could select a sample of 50 adults and find the mean of this sample is between 95 and 105?

    asked by Trev
  16. MAT 116

    The perimeter of a rectangle is 28 ft. The length is 10 ft longer than the width. Find the dimensions. Write a system of linear equations and solve the resulting system. Let x be the length and y be the width.

    asked by Samantha
  17. physics

    A key falls from a bridge that is 45 m above the water. The key falls straight down and lands in a model boat traveling at a constant velocity of 3.5 m/s. Calculate the distance the boat was from the point of impact when the key was released. Answer d=

    asked by H
  18. physcis

    A beam resting on two pivots has a length of L = 9.00 m and mass M =81.0 kg. The pivot under the left end exerts a normal force n1 on the beam, and the second pivot placed a distance 4.00 m from the left end exerts a normal force n2. A woman of mass m=

    asked by Anonymous
  19. physics (speed of plane by radar)

    The radar stations A and B, separated by the distance a = 500 m, track the plane C by recording the angles α and β at 1-second intervals, If three successive readings are shown in the table,calculate the speed v of the plane and the climb angle y at t =

    asked by micheal
  20. science

    How much heat must a gram of water at 15°C lose to turn into ice at 0°C?

    asked by mofrey
  21. PHYSICS!!!

    Water flowing through a garden hose of diameter 2.72 cm fills a 25.0-L bucket in 1.10 min. (a) What is the speed of the water leaving the end of the hose? m/s (b) A nozzle is now attached to the end of the hose. If the nozzle diameter is one-third the

    asked by k
  22. physcis

    A painter climbs a ladder leaning against a smooth wall. At a certain height, the ladder is on the verge of slipping. Let the mass of the painter be 85.0 kg, length = 5.80 m, the ladder’s mass to be 37.0 kg, è = 51.0°, and the coefficient of friction

    asked by Anonymous
  23. Chemistry

    a 25.0 mL sample of .050 M solution of aqueous trimethylamine is titrated with a .063 M solution of HCl. calculate pH the solution after 10.0 mL, 20.0 mL, 30.0 mL of acid have been added. pKb of (CH3)_3_N= 4.19 at 25 degrees C

    asked by Elaine
  24. Physics

    A rotating cylinder 7.95 kilometers in radius is designed to be used as a space colony. With what period must it rotate so the residents on it feel as heavy as they would on Earth?

    asked by Tristan
  25. Chemistry

    What is the pH of a solution prepared by mixing 10 mL of 0.10 M NH3 and 5.0 mL of 0.24 M NH4+. Assume Ka(NH4+) = 5.56 x 10^-10

    asked by Liz
  26. PHYSICS!!!

    A liquid (ñ = 1.65 g/cm3) flows through a horizontal pipe of varying cross section as in the figure below. In the first section, the cross-sectional area is 10.0 cm2, the flow speed is 288 cm/s, and the pressure is 1.20 105 Pa. In the second section, the

    asked by k
  27. physics

    A 9.0 kg cylinder rolls without slipping on a rough surface. At an instant when its center of gravity has a speed of 12.0 m/s, determine (a) the translational kinetic energy of its center of gravity.

    asked by Anonymous
  28. chemistry

    A researcher studying the nutritional value of a new candy places a 3.10-gram sample of the candy inside a bomb calorimeter and combusts it in excess oxygen. The observed temperature increase is 2.34 °C. If the heat capacity of the calorimeter is 33.50

    asked by Shireen Shaikh
  29. PHYSICS!!!

    A square metal sheet 3.1 cm on a side and of negligible thickness is attached to a balance and inserted into a container of fluid. The contact angle is found to be zero, as shown in Figure (a), and the balance to which the metal sheet is attached reads

    asked by k
  30. physics

    The Earth’s radius is about 6380 km. The space shuttle is orbiting about 275.0 km above Earth’s surface. If the average speed of the space shuttle is 23500 km/h, find the time required for it to circle Earth.

    asked by Jacky
  31. chemistry

    Calculate the mass in grams of 2.50 mol iron(II) hydroxide. A. 29.5 g Fe(OH)2 B. 184.5 g Fe(OH)2 C. 225 g Fe(OH)2 D. 3.38 x 10-2 g Fe(OH)2 C

    asked by Cathy
  32. Physics

    A 500 g block on a frictionless surface is attached to a rather limp spring of constant k = 8.7 N/m. A second block rests on the first, and the whole system executes simple harmonic motion with a period of 3.1 s. When the amplitude of the motion is

    asked by Mike
  33. physics

    An astronaut in his space suit and with a propulsion unit (empty of its gas propellant) strapped to his back has a mass of 146 kg. The astronaut begins a space walk at rest, with a completely filled propulsion unit. During the space walk, the unit ejects

    asked by Anonymous
  34. physics

    A ball is dropped from the top of a building. The balls fall 3 times farther during its last second of freefall than it did during its third second of freefall. The ball fell 4.9 meters during its first second, how tall is the building and how much time is

    asked by H
  35. Chemistry

    Iron (III) hydroxide is soluble in acid: Fe(OH)3(s)3H^+(aq)-->Fe^3^+(aq)+3H2O(l) a. How many milliliters of 1.00 M HCl are needed to dissolve 1.00 g of iron (III) hydroxide? b. If you added enough HCl to dissolve the 1.00 g of iron (III) hydroxide and then

    asked by Kelly
  36. physics!!!

    The viscous force on an oil drop is measured to be 6.0 10-13 N when the drop is falling through air with a speed of 9.0 10-4 m/s. If the radius of the drop is 2.5 10-6 m, what is the viscosity of air? Answer in N x s/m^2

    asked by k
  37. physics

    A simple pendulum consists of a small object of mass 3.20 kg hanging at the end of a 3.70 m long light string that is connected to a pivot point. (a) Calculate the magnitude of the torque (due to the force of gravity) about this pivot point when the string

    asked by Anonymous
  38. physics

    A war-wolf, or trebuchet, is a device used during the Middle Ages to throw rocks at castles and now sometimes used to fling pumpkins and pianos. A simple trebuchet is shown in the figure. Model it as a stiff rod of negligible mass 3.00 m long and joining

    asked by Anonymous
  39. chemistry

    CaCO3(s) + 2 HCl(aq) --> CaCl3(aq) + H2O(l) + CO2 It takes 19.26 mL of 0.6721 M HCl to completely react with the CaCO3. What is the mass of CaCO3 in the tablet? didnt mean to cal you

    asked by Sheree'
  40. statistics

    The alternative hypothesis for an independent-measures t test states ______. a. There is no mean difference between the two populations being compared. b. There is no mean difference between the two samples being compared. c. There is a non-zero mean

    asked by Robbie
  41. PHYSICS!!!

    A straight horizontal pipe with a diameter of 1.0 cm and a length of 46 m carries oil with a coefficient of viscosity of 0.11 N · s/m2. At the output of the pipe, the flow rate is 8.4 10-5 m3/s and the pressure is 1.0 atmosphere. Find the gauge pressure

    asked by k
  42. physics

    A person bending forward to lift a load with his back, as shown in the figure, rather than with his knees can be injured by large forces exerted on the muscles and vertebrae. The spine pivots mainly at the fifth lumbar vertebra, with the principal

    asked by Anonymous
  43. Chem

    What is the approximate ΔH in kJ for the following reaction as written: 2NH3(g) --> 3H2(g) + N2(g) Careful, what kind of bond does the nitrogen molecule make? I think it's -86, but I just want to make sure. Thanks in advance!

    asked by Anonymous
  44. chemistry

    The amount of energy released by burning a fuel source, measured in energy per mass, is called the fuel value. If all the energy obtained from burning 1.29 pounds of butane (fuel value is 10.85 kcal/g) is used to heat 122.5 kg of water at an initial

    asked by Shireen Shaikh
  45. statistics

    For which of the following situations would a repeated-measures research design be appropriate? a. comparing mathematical skills for girls versus boys at age 10 b. comparing pain tolerance with and without acupuncture needles c. comparing self-esteem for

    asked by Robbie
  46. physics

    A cook holds a 2.66-kg carton of milk at arm's length (see the figure below). What force B must be exerted by the biceps muscle? (Ignore the weight of the forearm. State the magnitude of the force B.)

    asked by sarah
  47. programming MIPS ask

    Write a MIPS assembly language program that will cover the following steps: Prompt the user to enter a first integer named i1 Prompt the user to enter a second integer named i2 Compute i1+i2-200 Print the value of the result Repeat The program should

    asked by jack
  48. physics

    What is the angular momentum of a figure skater spinning at 4.4 with arms in close to her body, assuming her to be a uniform cylinder with a height of 1.6 , a radius of 15 , and a mass of 53 ?

    asked by jake
  49. PHYSICS!!!

    Glycerine in water diffuses along a horizontal column that has a cross-sectional area of 2.0 cm2. The concentration gradient is 3.1 10-2 kg/m4, and the diffusion rate is found to be 5.4 10-15 kg/s. Determine the diffusion coefficient. Answer in m2/s

    asked by k
  50. physics

    A 5.00 kg mass is connected by a light cord to a 3.00 kg mass on a smooth surface as shown in the figure. The pulley rotates about a frictionless axle and has a moment of inertia of 0.300 k∙m2 and a radius of 0.500 m. Assuming that the cord does not slip

    asked by Anonymous
  51. PHYSICS!!!

    Sucrose is allowed to diffuse along a 8.0-cm length of tubing filled with water. The tube is 6.1 cm2 in cross-sectional area. The diffusion coefficient is equal to 5.0 10-10 m2/s, and 8.0 10-14 kg is transported along the tube in 18 s. What is the

    asked by k
  52. Physics

    A 0.069-kg arrow is fired horizontally. The bowstring exerts an average force of 65 N on the arrow over a distance of 0.95 m. With what speed does the arrow leave the bow?

    asked by Donald
  53. chemistry

    how many liters of O2 gas measured at 784mmHg and 25'C are required to completely react with 2.3 mole of Al?

    asked by Anonymous
  54. Stattistics

    In one elementary school, 200 students are tested on the subject of Math and English. The table below shows the mean and standard deviation for each subject. Mean SD Math 67 9.58 English 78 12.45 One student’s Math score was 70 and the same

    asked by lisa
  55. Chemistry

    Find the Molality and Molarity of a solution where 1.0g of NaCl was dissolved in 100mL of rubbing alcohol (the density of the alcohol is 0.78 g/mL). Not sure what steps to use to find Molarity and Molality....

    asked by Anonymous
  56. Physics

    A person pushes a 16.0-kg shopping cart at a constant velocity for a distance of 26.0 m. She pushes in a direction 22.0° below the horizontal. A 38.0-N frictional force opposes the motion of the cart.

    asked by D
  57. physics

    A 57.5-kg skateboarder starts out with a speed of 1.80 m/s. He does +80.0 J of work on himself by pushing with his feet against the ground. In addition, friction does -265 J of work on him. In both cases, the forces doing the work are nonconservative. The

    asked by Anonymous
  58. Precalculus

    The question(s) are as follows: Given: f(x) = 3cos(3x+π) - 4 Find: a) the inverse of F(x) b) the domain and range of F(x) c) the domain and range of F -1(x) I got cos-1[(x-4)/9] - π = y for the inverse, although I'm not sure I did the problem right (I

    asked by Mary
  59. physics

    A painter climbs a ladder leaning against a smooth wall. At a certain height, the ladder is on the verge of slipping. Let the mass of the painter be 85.0 kg, length = 5.80 m, the ladder’s mass to be 37.0 kg, è = 51.0°, and the coefficient of friction

    asked by Anonymous
  60. physics

    A solid, horizontal cylinder of mass 12.0 kg and radius 2.30 m rotates with an angular speed of 6.70 rad/s about a fixed vertical axis through its center. A 1.60 kg piece of putty is dropped vertically onto the cylinder at a point 0.600 m from the center

    asked by Anonymous
  61. Physics

    A 7410-kg satellite has an elliptical orbit, as in the figure. The point on the orbit that is farthest from the earth is called the apogee and is at the far right side of the drawing. The point on the orbit that is closest to the earth is called the

    asked by Donald
  62. physics

    A 75.0 kg stunt man jumps from a balcony and falls 28.0 m before colliding with a pile of mattresses. If the mattresses are compressed 0.800 m before he is brought to rest, what is the average force exerted by the mattresses on the stuntman?

    asked by Alexis
  63. gen chem II

    At what temperature does the average speed of an oxygen molecule equal that of an airplane moving at 560 mph?

    asked by stephanie
  64. math

    joe walked 4 miles north, 9 miles east then 8 miles north and 7 miles east if Al decides to walk straight back to where he started how far must he walk?

    asked by blake
  65. physics

    Consider the following mass distribution, where x- and y- coordinates are given in meters: 5.0 kg at (0.0, 0.0) m, 4.0 kg at (0.0, 7.0) m, and 7.0 kg at (5.0, 0.0) m. Where should a fourth object of 8.0 kg be placed so that the center of gravity of the

    asked by Anonymous
  66. Chemistry

    What energy in kJ is required to break 4.24 mol of NH3 into atoms? As noted below, this information can be used to calculate ΔH for gas-phase reactions. I got 1376.18, which is wrong. All help is appreciated!

    asked by Anonymous
  67. physics

    A person bending forward to lift a load with his back, as shown in the figure, rather than with his knees can be injured by large forces exerted on the muscles and vertebrae. The spine pivots mainly at the fifth lumbar vertebra, with the principal

    asked by Anonymous
  68. Physics

    A cable lifts a 1060-kg elevator at a constant velocity for a distance of 39 m. What is the work done by each of the following?

    asked by Donald
  69. Physics

    A fighter jet is launched from an aircraft carrier with the aid of its own engines and a steam-powered catapult. The thrust of its engines is 2.10 105 N. In being launched from rest it moves through a distance of 87 m and has a kinetic energy of 4.30 107 J

    asked by Donald
  70. CHM111

    Mg3N2(s)+6H2O(l) to 3Mg(OH)2(s)+2NH2(g)how many grams of H2O are needed to producce 150g of Mg(OH)2?

    asked by Anonymous
  71. math problem

    --There is a layer of ice four inches thick covering a small pond when the weather arrives and it begins to smelt. It smelts 1/16 inch the first day, 1/8 inch the second day. 1/4 inch the third day, and keeps doubling the amount melted each succeeding day.

    asked by Mark
  72. Chemistry

    Find the Molality and Molarity of a solution where 1.0g of NaCl was dissolved in 100mL of rubbing alcohol (the density of the alcohol is 0.78 g/mL). Not sure what steps to use to find Molarity and Molality....

    asked by Anonymous
  73. chemistry

    Which atom in each of the following pairs has a larger radius? a) Na or K b) V or Zn c) V or Ta d) Li or Ba

    asked by lynn
  74. statistic

    . For each of the following, assume that the two samples are selected from populations with equal means and calculate how much difference should be expected, on average, between the two sample means. a. Each sample has n _ 5 scores with s2 _ 38 for the

    asked by Sharon
  75. Algebra

    A motorcycle breaks down and the rider has to walk the rest of the way to work. The motorcycle was being driven at 45mi/hr and the rider walks at a speed of 6mi/hr. Teh distance from home to work is 25 miles and the total time for the trip was 2 hours. How

    asked by kaitlyn
  76. Chemistry:Freezing Points

    The freezing point lowering of a saturated aqueous solution of NaCl is 17 Celsius. Would spreading salt on the icy sidewalks be beneficial when the temperature outside is -8 Fahrenheit? Explain.

    asked by Anonymous
  77. Physics Hw Help Please

    The Burj Khalifa in Dubai is the world\'s tallest building. The structure is 828 m (2,716.5 feet) and has more than 160 stories. A tourist is obviously using the elevator to reach their hotel room and after a long ride finally arrives at the correct floor

    asked by Michael
  78. physics

    Brandy is made by distilling ethyl alcohol, which is done by boiling the alcohol until it turns into a gas. How much heat is required to completely distil 0.750 kg of ethyl alcohol?

    asked by shan
  79. CSUSB

    calculate the grams of iron produced when 120g of iron (III) oxide are reacted with 84g carbon monoxide Fe203+3CO--2Fe+3CO2

    asked by Darlene
  80. physics

    A certain car is capable of accelerating at a uniform rate of 0.93 m/s2. What is the magnitude of the car’s displacement as it accelerates uniformly from a speed of 86 km/h to one of 98 km/h? Answer in units of m

    asked by Anne
  81. English

    1. Will you recommend me a book? - I recommend you this book, the Autobiography of Benjamin franklin. 2. I recommend you that you go shopping with your wife. 3. I recommend this smart phone to you. 4. I recommend you that you shoud go shopping with your

    asked by rfvv
  82. physics

    1000 kg car moving at 10 m/s brakes to a stop in 5 s. The average braking force is ? n

    asked by Anonymous
  83. PHYSICS!!!

    A hypodermic syringe contains a medicine with the density of water (figure below). The barrel of the syringe has a cross-sectional area of 2.89 10-5 m2. In the absence of a force on the plunger, the pressure everywhere is 1.00 atm. A force of magnitude

    asked by k
  84. Sociology

    What does the author think best explains the number of lower-class offenders in the criminal justice system? a) They have higher offending rates. b) They have higher rates of recidivism. c) There are both disparities in crime rates and discrimination in

    asked by Tammy
  85. physics

    A 10.0-g bullet is fired horizontally into a 101-g wooden block that is initially at rest on a frictionless horizontal surface and connected to a spring having spring constant 155 N/m. The bullet becomes embedded in the block. If the bullet-block system

    asked by lilly
  86. Chemistry

    CFCs, or chlorofluorocarbons,were once used as refrigerants, but were banned due to their role in the depletion of ozone in our upper atmosphere. The evaporation of CFCs can be used to drive the freezing of liquid water. Given the heat of vaporization for

    asked by Anonymous
  87. chemistry

    Give the orbital designations of electrons with the following quantum numbers" (a) n = 3, l = 0, m1=0 (b) n=2, l=1, ml=-1 (c) n=4, l=3, ml=-2 (d) n=4, l=2, ml=0

    asked by lynn
  88. crim procedure

    Which of the following rights is dependent upon whether formal charges have been filed or a criminal prosecution has begun? Answer the Fourth Amendment protection against unreasonable search and seizure the Fifth Amendment privilege against

    asked by ron
  89. chemistry

    How many moles are in 24.0 g KCl? A. 3.22 mol B. .32 mol C. 0.322 mol D. 32.2 mol C

    asked by Cathy
  90. math

    Mr. smith wants to buy some fencing to completely surround his rectangular garden. He knows that the total perimeter of the garden is 26 meters and the total area is 40 square meters. What is the garden’s length and width?

    asked by Anonymous
  91. Healthcare

    You are the manager of a variable hospital department and you just received your monthly budget results that state your salaries were higher and your supplies were lower than budgeted.

    asked by mae
  92. algebra

    a new york city taxi charges $3 per ride plus an additional $0.50 per mile what is the function

    asked by shakira
  93. calculus

    a function has a local maximum at x=-2 and x=6 and a local minimum at x=1. how do u find the concavity of this function and point of inflection?? ***the only given info is the max and min points

    asked by Navroz
  94. physics

    A person bending forward to lift a load with his back, as shown in the figure, rather than with his knees can be injured by large forces exerted on the muscles and vertebrae. The spine pivots mainly at the fifth lumbar vertebra, with the principal

    asked by Anonymous
  95. Sociology

    Which statement would Kennedy’s New York City “pedestrian stop” analysis most likely echo? a) Descriptions of crime suspects dictate who the police stop. b) The race of crime suspects dictates who the police stop. c) Witnesses to crime tend to be

    asked by Tammy
  96. english

    Hello! say i got 54 out of 75 points on a test... what would my grade be (A,B,C,D,or a F). thanks!

    asked by kate
  97. Trigonometry

    find cos (u+v) when cos v=(1/3) and sin u=(2/5) I found sin (v) to equal (sqrt8)/3 and cos (u)= (sqrt21)/5

    asked by Anonymous
  98. math

    cos 4x=7/18. 4x is on quadrant 4. sin x?

    asked by zaki
  99. math

    Let's say you are standing on top of a mountain looking down at the valley below, where you can see cars driving on a road. You stretch out your arm, use your thumb to "sight" a car, and find that the car appears to be as long as your thumb is wide.

    asked by Chelsea
  100. PHI 103

    "The Senator wants to cut spending on police. I guess she doesn't care if we all get murdered" may commit which fallacy? (Points : 1) Straw man fallacy False Cause Appeal to popularity No fallacy committed

    asked by mandy
  101. chemistry

    Find the mass in grams of 1.01 mol TiO2 A. 0.806 g TiO2 B. 80.67 g TiO2 C. 8.06 g TiO2 D. 806.7 g TiO2 B

    asked by Cathy
  102. Physics

    2 blocks of masses m1 and m2 are joined by a light spring on a horizontal table. Obtain the relation of their accelerations a1 and a2 after they separate a bit and get released. I tried to use the equations V(x)= .5k*x^2 (potential energy) and V = -∫Fdx

    asked by Krystina
  103. programming MIPS ask 3

    Write a MIPS assembly language program for the following for loop: Pseudocode: int x; # for(x=10; x>0; x--){ # printf("x=%d", 4x); #} In the program use the slt or slti instruction and sll

    asked by jack
  104. Physics

    A 11.0-g bullet is fired horizontally into a 101-g wooden block that is initially at rest on a frictionless horizontal surface and connected to a spring having spring constant 160 N/m. The bullet becomes embedded in the block. If the bullet-block system

    asked by Kelly
  105. Physics RC

    A 6.44 E+06 ohm resistor and a 1.00 microfarad capacitor are connected in a single loop circuit with a seat of emf of E = 2.00 V. At 6.00 s. after the connection is made, what is the rate at which energy (in joules/second) is being delivered by the seat of

    asked by andrew
  106. economics

    Given the economic situation today, outline the discretionary fiscal policy you would promote if you were president. In terms of the AD-AS model, explain how your policies would affect the economy.

    asked by edna garcia
  107. economics

    What is a supply shock? Give an example of a current supply shock. Which way does this shock move the AS curve? What is the resulting impact on potential GDP and the price level?

    asked by edna garcia
  108. science

    What is meant by depassivation of reinforcement? State the two main chemical attacks that lead to depassivation

    asked by John
  109. English

    e.g. I have a soda to recommend. ( What is 'soda'? Are both Coke and Cola a soda? Is 'soda' different from 'soda water' or 'soda pup'?)

    asked by rfvv
  110. Physics

    A top-gun pilot, practicing radar avoidance maneuvers, is flying horizontally at 1300 km/hr, just 35 m above level ground. Suddenly, the plane encounters terrain that slopes gently upwards at 5, an amount difficult to detect visually. If the pilot

    asked by suzy
  111. Math/Algebra

    I really need help! I have a paper due tomorrow and I can't find out this answer. Can you help me? The question says this: -2=n+5. Under it it says: (-2)-____=n+5-____. I know that n equals -7 but I can't find out the blanks. Please help!

    asked by Lizzy
  112. math

    Hannah's grade on her last math test was 4 points more than Mark's grade. Write an expression for Hannah's grade, using m as a variable. Evaluate the expression if m=92.

    asked by josh
  113. math

    A diver jumps into a 10 meter deep pool from a 5 meter platform with an initial upward velocity of 3.2 meters per second. What will the divers maximum height be? After how many second will the diver hit the water? If the water were drained from the pool,

    asked by ryan
  114. Writing

    Help me please! My daughter is failing in the 4th grade with her writing. How can I help her improve her writing skills? She doesn't grasp what she reads fully because her writing doesn't match with what she reads. asahe leaves out crucial information and

    asked by Yolan
  115. physics

    A large grinding wheel in the shape of a solid cylinder of radius 0.370m is free to rotate on a frictionless, vertical axle. A constant tangential force of 470 N applied to its edge causes the wheel to have an angular acceleration of 0.800 rad/s2. (a) What

    asked by Anonymous
  116. Cultral Diversity

    1.Reserch about the impact of cultral valueson peer social interaction in an early education classroom may lead one to conclude that this enviroment may create biases if the primary social orientation favors:a teacher centered learning b.individual

    asked by anna
  117. physics

    A painter climbs a ladder leaning against a smooth wall. At a certain height, the ladder is on the verge of slipping. Let the mass of the painter be 85.0 kg, length = 5.80 m, the ladder’s mass to be 37.0 kg, è = 51.0°, and the coefficient of friction

    asked by Anonymous
  118. chemistry

    You are doing an experiment to determine the Ksp of a salt. If, while filtering, some of the solid passed through the filter and was not taken out before titrating, how would the calculated Ksp and solubility be affected? Thanks.

    asked by Ashley
  119. Physics

    A disk rotates on the horizontal. A blcok is hanging from the tisc, which forms an angle with the vertical of 45 degrees while the disk turns. The radius of the disc is .1mm and the length of the string is .06 m. Determine the velocity of rotation for the

    asked by Krystina
  120. grammar

    Which of the following words has three syllables

    asked by Anonymous
  121. Physics

    A person pulls a toboggan for a distance of 20.0 m along the snow with a rope directed 15.0° above the snow. The tension in the rope is 63.0 N.

    asked by Anonymous
  122. computing/maths

    Derive the central difference approximation for f′′(x) accurate to O(h4) by applying Richardson extrapolation to the central difference approximation of O(h2). (Note that f''(x)= 2nd derivative of x)

    asked by royston
  123. mechanics

    A particle of mass 10 kg is acted on by a resultant force, F newtons. If the position vector of the particle is given by r = 6ti + (4t + 8t2)j, then F is equal toĻ

    asked by Karabo
  124. mechanics

    A crate of mass 80 kg stands on level ground. A worker exerts a horizontal force of 120 N on the crate. If the coefficient of friction between the crate and the ground is 0.25, and F N is the magnitude of the frictional

    asked by Karabo
  125. Physics!

    If a water heater has a capacity of 54.4 gallons and a 4910 W heating element, how much time is required to raise the temperature of the water from 19.8oC to 60.0oC? Assume that the heater is well insulated and no water is withdrawn from the tank during

    asked by jake
  126. litracy

    Which of the following is a primary source

    asked by fidelite
  127. physics

    Two astronaut, as shown in the figure, each having a mass of 62.0 kg, are connected by a 12.00 m rope of negligible mass. They are isolated in space, moving in circles around the point halfway between them at a speed of 5.00 m/s. Treating the astronauts as

    asked by Anonymous
  128. English- Hamlet

    I trying to do thematic statement on certainty or uncertainty which be in play of hamlet, but i having troubles with last sentence. Being sure and timely in one’s own decisions will allow them to accomplish tasks and clear any obstacles within time.

    asked by Mohammad
  129. physics

    A ball is thrown horizontally off the top of a 65 m tall building at a velocity of 7.8 m/s. How far did the ball land from the base of the building? Round your answer to 2 decimal places.

    asked by Sara
  130. statistics

    An independent-measures study with n = 6 in each sample, produces a sample mean difference of 4 points and a pooled variance of 12. What is the value for the t statistic? a. 1 b. 2 c. 4/√2 d. 4/√8

    asked by Robbie
  131. Physics

    Brett decided that he was going to go bungee jumping at the WEM mall water park. If Brett weighs 95kg and he is 30 m above the water, how far will he fall IF the elastic force of the bungee cord is 1000N? Will he hit the water?

    asked by Jocelyn
  132. physics

    A robot probe drops a camera off the rim of a 455 m high cliff on Mars, where the free-fall acceleration is 3.7 m/s2.Find the velocity with which it hits the ground. Answer in units of m/s

    asked by Anne
  133. government

    Would a program of reforms to increase voting turnout need to focus on the cost of voting, the benefits, or both? What do current reform proposals prioritize?

    asked by Anonymous
  134. Math

    Don't understand the problem can somebody please help me The bottom of the rabbit cage is a rectangle with a perimeter of 118 inches. Let x be the cages width(in inches) and let y be its length (in inches). write an equation for the perimeter the find the

    asked by Kim
  135. college algebra

    find the zero's for the following polynomial and give the multiplicity for each zero. For each zero, state whether the graph crosses the x-axis or touches the x-axis and turns around. f(x)=5(x-2)(x+4)^3 I am having trouble with this. Can you please show me

    asked by ladybug
  136. physics

    Three uniform thin rods, each of length L = 16 cm, form an inverted U. The vertical rods each have mass of 14 g; the horizontal rod has mass of 50 g. Where is the center of mass of the assembly (x, y)?

    asked by KRISTEL
  137. govt

    Would a program of reforms to increase voting turnout need to focus on the cost of voting, the benefits, or both? What do current reform proposals prioritize?

    asked by Anonymous
  138. PHYSICS!!!

    A thin 1.8-mm coating of glycerine has been placed between two microscope slides of width 1.0 cm and length 4.0 cm. Find the force required to pull one of the microscope slides at a constant speed of 0.35 m/s relative to the other slide. Answer in N

    asked by k
  139. calculus

    If the hands on a clocktower's clock are 2ft and 3ft long, how fast is the distance between the tips of the hands of the clock changing at 9:20? I know that the derivative of the minute hand is pi/30 rad/min and derivative of the hour hand is pi/360

    asked by nico
  140. PHYSICS!!!

    A certain fluid has a density of 1045 kg/m3 and is observed to rise to a height of 2.4 cm in a 1.0-mm-diameter tube. The contact angle between the wall and the fluid is zero. Calculate the surface tension of the fluid. Answer in N/m

    asked by k
  141. PHYSICS!!!

    To lift a wire ring of radius 1.95 cm from the surface of a container of blood plasma, a vertical force of 1.79 10-2 N greater than the weight of the ring is required. Calculate the surface tension of blood plasma from this information. Answer in N/m

    asked by k
  142. chemistry

    Calculate the number of moles in 75.0 g of oxygen gas. A. 2.34 mol O2 B. 4.69 mol O2 C. 750 mol O2 D. 12.5 × 1023 mol O2 B

    asked by Cathy
  143. physics

    A 7.00 104-kg space probe is traveling at a speed of 12000 m/s through deep space. Retrorockets are fired along the line of motion to reduce the probe's speed. The retrorockets generate a force of 4.00 105 N over a distance of 2700 km. What is the final

    asked by Anonymous
  144. PHI 103

    "Thomas Jefferson owned slaves, so slavery must have been a good idea" may commit which fallacy? (Points : 1) Appeal to pity No fallacy committed Appeal to false authority Appeal to ignorance

    asked by mandy
  145. Cal

    find the x coordinates of all relative points of f(x)=1/2x^4-2/3x^3-6x^2-100

    asked by Neika
  146. mechanics

    A mass of 8 kg is connected to a mass of 3 kg by a light, inelastic string which passes over a smooth pulley. The tension in the string isĻ

    asked by Karabo
  147. mechanics

    A body of mass 10 kg is moving in a straight line. Its velocity decreases from 5 m/s to 3 m/s in a time of 2 s. The change of momentum of the particle, in kg m/s, in the direction of motion isĻ

    asked by Karabo
  148. Weather

    What was the outside temperature in Indialantic Fl. On 5-30-2011?

    asked by Anonymous
  149. calculus

    a function has a local maximum at x=-2 and x=6 and a local minimum at x=1. how do u find the concavity of this function and point of inflection??

    asked by Navroz
  150. C++

    Write a MAIN function and a FUNCTION to compute the sum of the below series. (n!)/(2n+1)! (from n=1 to infinity) Within the MAIN function: . Read a variable EPSILON of type DOUBLE (desired accuracy) from the standard input. EPSILON is an extremely small

    asked by Emre
  151. math

    Suppose and the domain is Describe the function in the following ways: a. Draw an arrow diagram involving two sets.

    asked by kelli
  152. Project Budget

    For a Company Wide Compliance System Project Budget The project for the company offsite 2-day training session has been given a preliminary go-ahead. However a budget needs to be submitted for approval. Write a 2- to 3-page memo explaining the financial

    asked by Misty
  153. writing

    How can I change this sentence to Indirect speech. Our neighbor told us,"I can't help you move because we"ll be out of town next weekend.

    asked by Anonymous
  154. English

    Which word goes in the blank. The patient must lie/lay perfectly still during the X-ray. Is it lie since there is no object?

    asked by Kelley
  155. algebra

    -13=5(1+4m)-2m

    asked by Hannah
  156. aig

    Please solve. Use order of operations. 320-(17+3)-5 = My answer is 323, am i right or not? if not please tell me your answer and how you got it.

    asked by May
  157. English

    Would rose be the correct choice because there is no object again, The curtain rose/raised on the last act of the class play.

    asked by Kelley
  158. English

    One last one... Larry fell asleep two minutes after he had (laid) down. Should it say lain down due to no object?

    asked by Kelley
  159. Physics

    A 240 g mass is attached to a spring of constant k = 5.4 N/m and set into oscillation with amplitude A = 26 cm. (a) Determine the frequency of the system in hertz. (b) Determine the period. (c) Determine the maximum velocity of the mass. (d) Determine the

    asked by Jill
  160. Spanish

    I just have SO much trouble with remembering new languages! Does anybody have any ideas to help me remember and to have fun studying Spanish? (ie. flashcards...) I really need HELP! Helen

    asked by Helen
  161. English- Hamlet

    I got to explain this soliloquie in a paragraph: Spoken by Hamlet, Hamlet Act 1 Scene 2: O, that this too too solid flesh would melt Thaw and resolve itself into a dew! Or that the Everlasting had not fix’d His canon ‘gainst self-slaughter! O God! God!

    asked by Mohammad
  162. Adv Comp

    I am doing a paper on symbolism in the book, The Accidental tourist by Anne Tyler, specifically about the chair with wings and the dog. I need to find online sources of people that critic the book or talk about these symbols. They have to be credible

    asked by Rebekah
  163. Math

    HELP! I have a math question the says this: In track practice, Jesse ran a mile in 7 minutes. His mile time was 2 1/2 minutes faster than Michael's time. Write and solve an equation to calculate Michael's mile time. I can't figure out what to do and it's

    asked by Lizzy
  164. science

    Explain the Nitrogen cycle

    asked by Leslie
  165. trig

    cos^2 A/ 1+sin A

    asked by mary
  166. intrest rates

    If the principal P = $500, the interest I = $100, and the rate r = 10%, find the following. (a) What is the time? years (b) What is the future value?

    asked by sasha
  167. math

    If a business borrows $15,000 and repays $20,700 in 4 years, what is the simple interest rate?

    asked by sasha
  168. math

    Let f(x)= x^4-4x^3+10 Where are the relative extrema, if they exist? Show all partsof the analysis necessary

    asked by Britney
  169. Precalculus

    How would I go about finding the domain and range of 3cos(3x+π) = 4? Thanks

    asked by Mary
  170. chemistry

    Find the number of moles in 85 g KCl. A. 3.3 mol KCl B. 1.1 mol KCl C. 11 mol KCl D. 2.5 mol KCl B

    asked by Cathy
  171. college algebra

    solve for X -7=7x^2-10x+6

    asked by Ty
  172. PHYSICS!!!

    A thin 1.8-mm coating of glycerine has been placed between two microscope slides of width 1.0 cm and length 4.0 cm. Find the force required to pull one of the microscope slides at a constant speed of 0.35 m/s relative to the other slide. Answer in N

    asked by k
  173. math

    A material has a half-life of 12 hours. If initially there are 4 grams of the material, how much is present after 8 hours? I know the answer is 8/3, but how would you solve this using calculus? please help.

    asked by alex
  174. Its math, cmon answer!!!

    This is my HW problem; I'm thinking of a number. When I double my number, subtract five, and then add my original number, I get one. What's my number?

    asked by Sarah
  175. math

    A study wants to examine the relationship between student anxiety for an exam and the number of hours studied. The data is as follows: Student Anxiety Scores Study Hours 5 1 10 6 5 2 11 8 12 5 4 1 3 4 2 6 6 5 1 2 Why is a correlation the most appropriate

    asked by Kristi
  176. the facility

    aesthetic is concerned with matter such as

    asked by tina
  177. algebra

    steps to (.15x)+(-.3x)=

    asked by kc
  178. math

    The number N of state and federal inmates in millions during year x where x >2002 can be approximated by the following formula N=0.04x-78.46

    asked by denise
  179. ITE10

    ALLOWS TO ACCEPT THE LENGTH IN FEET TO CENTEMETER?

    asked by JULIETA
  180. plant biology

    I'm doing a writing assignment on plant stress physiology. The stress that I chose to research was heat stress. One of the things that I have to do is describe at least 3 experiments that I plan to perform (hypothetically speaking, of course). At least one

    asked by Victoria
  181. math

    how i can see the exact solution of 6y-12y=12 and4x-12y=8

    asked by luis
  182. MAT 116

    A tugboat goes 180 miles upstream in 10 hours. The return trip downstream takes 5 hours. Find the speed of the tugboat without a current and the speed of the current.

    asked by Samantha
  183. Physics

    A particle of mass m1 is tide to a string and describes a circumference on a horizontal plane. The string (of negligible mass)passes through a hole that is in the center of the plane and goes down vertically. At the lower end is tied another particle of

    asked by Leslie
  184. chemistry

    How many grams are in 1.50 mol H2SO4? A. 14.7 g B. 1.47 g C. 0.147 g D. 147.2 g D

    asked by Cathy
  185. Math

    How can you tell by looking at the coordinates of a point whether the point is on the x axis or the y axis?

    asked by Kim
  186. Math

    12/42=4w/14

    asked by Mimi
  187. Economics

    What is kenyas factor of production for their land and labor? Which means what percentage do they use their land for what. For te labor it means what labor occurs their, whether it be physical or mental labor. I need details as well as percentages for

    asked by Anonymous
  188. earth

    Explain the Nitrogen Cycle

    asked by Leslie
  189. early child education

    what does the word docile mean

    asked by mike
  190. Earth Science

    Explain the Earth's Cabon Cycle

    asked by Leslie
  191. physics

    Two astronaut, as shown in the figure, each having a mass of 62.0 kg, are connected by a 12.00 m rope of negligible mass. They are isolated in space, moving in circles around the point halfway between them at a speed of 5.00 m/s. Treating the astronauts as

    asked by Anonymous
  192. algebra

    It takes a passenger train 2 hours less time than it takes a freight train to make the trip from Central City to Clear Creek. The passenger train averages 96mi/hr while the freight train averages 64mi/hr. How far is it from Central City to Clear Creek?

    asked by Samantha
  193. chemistry

    LiCIO4(s)=LiCI(s)+2O2(g)

    asked by jodi
  194. Physics

    A class of 11 students taking an exam has a power output per student of 122 W. Assume that the initial temperature of the room is 18.8oC and that its dimensions are 6.40 m by 14.5 m by 3.50 m. What is the temperature (in oC, do not enter units) of the room

    asked by jake
  195. statistics

    what is the graph for Y-hat = -0.333x +35.3

    asked by ejaz
  196. stastics

    A population has mean 53 and standard deviation 12. Calculate the mean of x bar for a random sample of size 10.

    asked by Anonymous
  197. physics

    A rifle allowed a bullet fired with an initial horizontal velocity to travel 76.0 m while only falling a distance of 0.40 m. What was the initial x-velocity of the bullet? Round your answer to 2 decimal places.

    asked by Sara
  198. physics

    A ball is thrown horizontally off the top of a 65 m tall building at a velocity of 7.8 m/s. How far did the ball land from the base of the building? Round your answer to 2 decimal places.

    asked by Sara
  199. maths

    find the whole number solutions to each of these inequalities. q1. 3

    asked by Mary
  200. science

    how much skin covers 1 of your alveoli?

    asked by Josh
  201. social studies

    The Demographic Transition Model

    asked by mary
  202. English

    1. I suggest you try it. 2. I demand you try it. (Are both all grammatical?) 3. How many floors is the second floor from ground? (Is it grammatical? What will be the answer to this question?)

    asked by rfvv
  203. math

    What are the missing numbers in this sequence? 1.25, 3.5, 8, 17, 35, 71, ___, ___, 575,...

    asked by Anonymous
  204. English

    Where can I find a copy? - You can find it in Aisle 1. (In this short dialogue, what does 'a copy' refer to in detail?)

    asked by rfvv
  205. aig math

    David has 120 stamps. He gave 36 stamps to Maria and some to Alice. After that he had 5/8 of the stamps left. How many stamps did he give to Alice? My answer is 9, am i right if not please tell me why and how you got your answer.

    asked by May
  206. math

    Let f(x)= x^4-4x^3+10 Where are the relative extrema, if they exist? Show all partsof the analysis necessary.

    asked by Britney
  207. Physics

    Sally travels by car from one city to another. She drives for 36.5 min at 90.7 km/h, 13.3 min at 120 km/h, and 57.4 min at 45.6 km/h, and she spends 16.3 min eating lunch and buying gas. Find the total distance traveled. Answer in units of km

    asked by Jacky
  208. Philosophy (arguments)

    further develop the following argument: communities in which people spend a lot of time socializing with their friends and neighbors are stronger than other communities. when people have televisions they spend less time socializing with their friends and

    asked by Catherine
  209. math

    how many btu"s does it taketo raise onepound of water at 32 f to the boiling point at 14.7psia and then to staem.?

    asked by jay
  210. math

    f(x)=x^4-4x^3+10 Where are the relative extrema, if they exist?

    asked by Britney
  211. Math

    What are the missing numbers in this sequence? 1.25, 3.5, 8, 17, 35, 71, ___, ___, 575,...

    asked by Anonymous
  212. trig

    tan^2x/1 + tan^2x = sin ^2 x

    asked by mary
  213. trig

    (1 + sinx)(secx - tanx) = cos x

    asked by mary
  214. engineering

    how many btu's does it take to raise one pound of water at 32 degrees f to the boiling point at 14.7 psia and then to steam?

    asked by jay
  215. math

    Can't remember the way to solve for the variable. 5x + 6 = 7x. Answer is 3, but how to do other problems?

    asked by Hannah
  216. medical Technologies

    Which classification system uses resident assessment data to assign residents to one of fourty-four groups, with each assessment applying to specific days within a resident's stay?

    asked by Patricia
  217. Physics

    A ball is thrown vertically upward with a speed of 26.1 m/s from a height of 2.1 m.How long does it take to reach its highest point? The acceleration of gravity is 9.81 m/s2. Answer in units of s

    asked by Jacky
  218. linear algebra

    in order to grow a certain crop, it is recommended that each square foot of ground be treated with 10 units of phosphorous, 9 units of potassium, and 19 units of nitrogen, suppose that there are three brands of fertilizer on the market - say brand X, brand

    asked by deel
  219. chemistry

    how many molecules are in 0.89 moles of ammonia

    asked by Rhonda
  220. chemistry

    how many molecules are in 0.89 moles of ammonia

    asked by Rhonda
  221. math

    Population of dogs mean rate 26 pounds and a deviation of 3.6 pounds, Population of cats mean rate 10.5 and a deviation of 1.9 if a dog weights 24 pounds and a cat weights 19 pounds. which weighs more for its population?

    asked by Syd
  222. math

    how to use hundreds chart for % of the numbers are multiples of 2 and 5?

    asked by wan
  223. Cultual Diversity

    1.A mother's eventual submission to her young child's repquests for the toy matchbox car in the hobby shop is representative of the ______ parenting style. a. laissez faire b.authoritarian c.Victorian d. democratic 2.A Native American child spent 30

    asked by anna
  224. Physics Resistance

    A 65 V. battery is connected across a 65400 ohm and a 37700 ohm resistor connected in series. What is the per cent error in the voltmeter reading when placed across the first resistor, if the voltmeter resistance is 143000 ohms? Not sure where to go with

    asked by andrew
  225. Cultual Diversity

    1.The instructional strategy that works best to give a child from a culturally different background a sence of security and mastery is: a. recounts b.repetion c.using an intermediary d.eventcasts 2.Young children are more likely to demonstrate early

    asked by Charm
  226. physics

    Two astronaut, as shown in the figure, each having a mass of 62.0 kg, are connected by a 12.00 m rope of negligible mass. They are isolated in space, moving in circles around the point halfway between them at a speed of 5.00 m/s. Treating the astronauts as

    asked by Anonymous
  227. algebra

    steps to (.15x)+(-3x)=

    asked by Anonymous
  228. Algebra

    On February 18, from 9 a.m. until 2 p.m., the temperature rose from -14(degrees)F to 38(degrees)F. What was the total increase in temperature during this time period?

    asked by Vanessa
  229. Algebra

    On February 18, from 9 a.m. until 2 p.m., the temperature rose from -14(degrees)F to 38(degrees)F. What was the total increase in temperature during this time period?

    asked by Vanessa
  230. Social Studies

    Veterans day When did this first come about And who did do this What does this day mean to vets And what are some events that day

    asked by Chris
  231. Physics

    The angular position of a particle that moves around the circumference of a circle with a radius of 5m has the equation: theta = a*t^2 Where a is constant. theta is in radians t is in seconds Determine the total acceleration and its intrinsic components

    asked by Leslie
  232. operating system

    Case 2-2: Comparing Word-Processing Applications You see an opportunity to possibly save your company money by adopting the OpenOffice suite for the new PCs in the Engineering Department. Your boss is interested in your suggestion, but wants to see a list

    asked by geniaj
  233. Chemistry

    A carbon atom is bombarded by high energy photons with a wavelength of 40 nm. Find how many electrons are ejected and the velocity of the first electron.

    asked by Phillip
  234. Human Anatomy

    Cystic fibrosis has the most serious effects on the: a. Pancreas c. Small intestine b. Liver d. Large Intes

    asked by rawr... im a dinosaur.... rawr