Questions Asked on
March 5, 2013

  1. Chemistry

    . For the reaction 2H2(g) + 2NO(g) → N2(g) + 2H2O(g) The observed rate law is Rate =k[NO]2[H2] The mechanisms shown below have been proposed to explain the kinetics of the above reaction Which of the following are acceptable mechanisms? Explain you

    asked by m
  2. physics

    The drawing shows a ray of light traveling through three materials whose surfaces are parallel to each other. The refracted rays (but not the reflected rays) are shown as the light passes through each material. A ray of light strikes the a–b interface at

    asked by Anonymous
  3. Math

    JOSHUA HAS 3 yards off ribbon. He need 1/4 to make one bow. How many bows can joshua makes?

    asked by Wilfredo
  4. business math

    Samantha Vega gross weekly salary is 600 dollars her weekly federal withholding is 35 dollars . the Social Security tax is 6.2 percent of the first 90,000 . the Medicare tax is 1.45 percent of gross pay. this state tax is 1.5 percent of gross pay. each

    asked by lauran
  5. Chemistry 101

    Complete and balance each of the following equations for gas-evolution reactions. Identify all of the phases in your answer. HCl(aq)+K2SO3(aq)-->

    asked by Michael Hyatt
  6. Math

    The base of the skateboard ramp has an area of 2.3 m square meters the height of the ramp is 1.2 m find the volume of the rectangular prism? Can you help me Dr.Jane or Ms.Sue?!?

    asked by Kevin
  7. physics

    The speed of all electromagnetic waves in empty space is 3.00 × 108 m/s. What is the wavelength of visible light emitted at 7.2 × 108 MHz? Answer in units of m

    asked by megan
  8. Pre-Algebra

    Grade 7 students were surveyed to determine how many hours per day they spent on various activities. Eating is 8%, homework is 8%, sleeping is 33%, TV is 13%, socializing 13%, and school is 25%. About how many hours per day altogether were spent on

    asked by OMGSPOOKYANONYMOUS
  9. Chemistry

    A strip of zinc metal was placed in a beaker that contained 120mL of a solution of copper(2) nitrate, Cu(NO3)2(aq). The mass of the copper produced was 0.813g. Find the initial concentration of the solution of copper(2)nitrate. Can u help me out with

    asked by Kristien
  10. Chemistry

    22.) The molar heats of fusion and vaporization for water are 6.02 kJ/mol and 40.6 kJ/mol, respectively, and the specific heat capacity of liquid water is 4.18 J/gC. (1) What quantity of heat is required to melt 25.0 g of ice at 0C? (2) What quantity of

    asked by Adriana
  11. angular momentum

    Just after a motorcycle rides off the end of a ramp and launches into the air, its engine is turning counterclockwise at 7530 rev/min. The motorcycle rider forgets to throttle back, so the engine's angular speed increases to 12600 rev/min. As a result, the

    asked by Anonymous
  12. Chemistry

    Calculate the volume of 1.0 M copper(II) sulfate solution required to completely react with 1.0 g of Fe(s) according to this equation: 2 Fe(s) + 3 Cu^2+ (aq) --> 2 Fe^3+ (aq) + 3 Cu (s). the copper in the reactant has a charge of 2+ and the iron in the

    asked by Sabrina
  13. DYNAMICS

    The 10-lb has an initial velocity of 10ft/s on the smooth plane. If a force F=(2.5t), where t is in seconds, acts on the block for 3s, determine the final velocity of the block and the distance the block travels during this time.

    asked by HELP
  14. algebra one

    three times the sum of a number and six is greater than four times the number decreased by two

    asked by brent
  15. chemistry

    If methane at a pressure of 3.2 atm and at 21 °C is introduced into a container, the gas be heated to ______°C to increase the pressure to 12 atm.

    asked by kelvin
  16. Math

    Comparing Fractions Writing to explain James says that 5/5 is greater than 99/100. Is he correct? Explain.

    asked by April
  17. Physics

    High-speed stroboscopic photographs show that the head of a 197 g golf club is traveling at 36.8 m/s just before it strikes a 45.9 g golf ball at rest on a tee. After the collision, the club head travels (in the same direction) at 25.9 m/s. Find the speed

    asked by colby
  18. CHEMISTRY

    Determine if it is polar or non-polar molecule: C3H6O C2H5OH SiCl4 NH3 CO2 C3H8 H2O N2 My ans are: Polar Polar Polar Nonpolar polar Nonpolar are my answers correct????

    asked by nidscorection
  19. Algebra 2

    Objective Function: C = 6x – 4y

    asked by Josh
  20. English

    pwsafmix copy the letter string above on a piece of paper. cross out the second and last letters. Replace all vowels with letter C. insert an O before the second C. cross out the first and third letters. double the second letter. help!

    asked by mary
  21. Physics

    A 0.500 kg particle moves in a circle of R=0.0150 m at constant speed. The time for 20 complete revolutions is 31.7 s. What is the period T of the motion? What is the speed of the particle? What is the centripetal acceleration of the particle? What is the

    asked by Nancy
  22. Algebra

    In a recent school board election, the two candidates for president received 2590 votes. The loser received 1302 fewer votes than the winner. How many votes did the winner receive?

    asked by Jon
  23. Algebra 1 Part 2

    Simplify the rational expressions.State any excluded values:(1).3x-6/x-2 (2).x-2/x^2+3x-10

    asked by Karen
  24. Poetry??

    Read the following excerpt from “and sometimes i hear this song in my head.” "and our tongues keep remembering the rhythm of the words we forgot swaying on the backs of buses and in hot kitchens crooning in pool halls and shared bathrooms yeah/we

    asked by Ella
  25. Physics

    A basketball is thrown from the ground into the air at an angle of 30 degrees to the horizontal. If this object reaches a maximum height of 5.75m, at what velocity was it thrown? How am i suppose to do this question if no velocity is given? I need help. I

    asked by Ted
  26. Physical science

    When a crate slides down an incline at a constant velocity it is

    asked by Anonymous
  27. Financial Mgmt.

    Nachman Industries just paid a dividend of D0 = $1.75. Analysts expect the company's dividend to grow by 30% this year, by 10% in Year 2, and at a constant rate of 5% in Year 3 and thereafter. The required return on this low-risk stock is 9.00%. What is

    asked by Lala
  28. math

    A rectangular photograph is mounted on a rectangular card. There is a border ofequal width around the photograph. The perimeter of the card is 40 centimeters longer than that of the photograph. Find the width of the border in centimeters.

    asked by shannon
  29. ap chemistry

    A 0.456 gram sample of an unknown mono- protic acid (let’s call it HZ) was dissolved in some water (you pick the amount). Then the acidic solution was titrated to the equivalence point with 32.5 mL of 0.174 M KOH. What is the molecular weight of the

    asked by cheri
  30. Math

    More than 18'students in an algebra class pass the first test. This is about three-fifths of the class. How many students are in the class? How do you know?

    asked by Carol
  31. Math

    Barry is 8 years older than his sister. In 3 years, he will be twice as old as she will be then. How old is each now? Please show work! I don't understand.

    asked by ANNIE
  32. Algebra 1,Part 2

    As cars passed a checkpoint ,the following speeds were clocked and recorded. Speed (mph):55,62,61,54,68,72,59,61,70) Find the mean and the range of the data set .

    asked by Karen
  33. Chemistry

    The decomposition of hydrogen peroxide is first order in H2O2: 2H2O2(aq) → 2H2O(l) + O2(g) Rate = k [H2O2] How long will it take for half of the H2O2 in a 10-gal sample to be consumed if the rate constant for this reaction is 5.6 x 10-2 s-1?

    asked by m
  34. Physics

    An 67.6 kg object moving to the right at 38.7 cm/s overtakes and collides elastically with a second 48.9 kg object moving in the same direction at 19.2 cm/s. Find the velocity of the second object after the collision. Answer in units of cm/s

    asked by help
  35. math

    Jane bought a meter of ribbon and cut off about one fifth of it to make a bow. About how many millimeters of ribbon did Jane use to make the bow?

    asked by Anonymous
  36. Data Management Grade 12

    A survey of 1000 television viewers conducted by a local television station produced the following data: •40% watch the news at 12:00 •60% watch the news at 18:00 •50% watch the news at 23:00 •25% watch the news at 12:00 and at 18:00 •20% watch

    asked by Trisha janelle
  37. chemistry

    After 273 m3 of ethylene oxide is formed at 748 kPa and 525 K, the gas is cooled at constant volume to 293 K.The new pressure is _____kPa

    asked by kelvin
  38. PHYSICS

    explorers in the jungle find an ancient monument in the shape of a large isosceles triangle. the monument is made from tens of thousands of small stone blocks of density 3 800 kg/m^3. the monument is 15.7 m high and 64.8 m wide as its base and is

    asked by helpppp meeeeeeee PHYSICS.........................
  39. please help me

    It takes Omar four minutes to eat eight carrot sticks. How long does it take him to eat one? Please answer and explain.

    asked by Anonymous
  40. Algebra

    Use synthetic division and the Remainder Theorem to find P(-5) if P(x) = -x^3 - 4x^2 + x - 2. Please help....?

    asked by Drake
  41. Physics

    A sled rope is held at an angle of 45 degrees with the horizontal ground. A force of 60 N acting parallel to the ground is required to keep the sled in motion. How much force must be exerted on the rope?

    asked by Adam
  42. Math

    Write the following number in standard form (4X10 4th power)+(3X10 3rd power)+(2X10 2nd power)+(5X1)=

    asked by Joe
  43. chemistry

    Determine if it is polar or non-polar molecule: C3H6O C2H5OH SiCl4 NH3 CO2 C3H8 H2O N2 My ans are: Polar Polar Polar polar Nonpolar nonpolar polar Nonpolar are my answers correct???? No one has answered this question yet.

    asked by nadira
  44. physical

    Hey everyone... hoping I can get an answer soon... I have a PD/H/PE homework assignment on which we have to create an collage on Physical, Spiritual, Emotional, Social and Mental health. I am stuck on a definition for spiritual health, me not being a very

    asked by Lauren
  45. ap chemistry

    If 300 mL of 3.9 molar HCl solution is added to 200 mL of 2.2 molar NaOH solution, what will be the molarity of NaCl in the resulting solution? Answer in units of M

    asked by cheri
  46. physics

    From the top of a tall building, a gun is fired. The bullet leaves the gun at a speed of 340 m/s, parallel to the ground. As the drawing shows, the bullet puts a hole in a window of another building and hits the wall that faces the window. (y = 0.56 m, and

    asked by Anonymous
  47. Chemistry

    Estimate the radius of the cesium ion, Cs+. The lattice energy of cesium chloride, CsCl, is 633 kJ/mol. For CsCl, the Madelung constant M is 1.763, and the Born exponent n is 10.7. The radius of Cl− is known to be 1.81 A˚. Express your answer in

    asked by Anonymous
  48. Physics

    A wire of thickness d = 5 mm is tightly wound 200 times around a cylindrical core to form a solenoid. A current I = 0.1 A is sent through the wire. What is the magnetic field on the axis of the solenoid?

    asked by April
  49. physics

    A fisherman’s scale stretches 3.05 cm when a 2.5-kg fish hangs from it. What will be the frequency of vibration if the fish is pulled down 13.60 cm more and released so that it vibrates up and down?

    asked by Anonymous
  50. Chemistry

    If 8.5g of pure ammonium phosphate , (NH4)3PO4(s), is dissolved in distilled water to make 400mL of solution, what are the concentrations (in moles per litre) of ions in the solution. How would I solve this type of stoichiometric problem. I know the steps

    asked by Kristien
  51. algebra one

    negative three times a number increased by seven is less than negative eleven

    asked by brent
  52. Math

    ln24 - ln6

    asked by Amanda
  53. Physics

    An object with mass 8.2 kg is attached to a spring with spring stiffness constant 370 N/m and is executing simple harmonic motion. When the object is 0.16 m from its equilibrium position, it is moving with a speed of 0.31 m/s. Calculate the maximum

    asked by Anonymous
  54. Algebra

    Mrs. Boyd has a desk full of quarters and nickels. If she has a total of 31 coins with a total face value of $4.55, how many of the coins are nickels?

    asked by Jon
  55. Physics

    A 1200.0-kg car speeds up from 16.0 m/s to 20.0 m/s. How much work was done on the car to increase its speed?

    asked by Sara
  56. pre alger

    Suppose that a car normally sells for $16,500 and is now on sale for $14,000. What is the percent of discount? If necessary, round your answer to the nearest tenth.

    asked by roger
  57. Chemistry

    H3PO4 Ka1= 7.5x10^-3 Ka2= 6.2x10^-8 Ka3=4.2x10-^13 Explain how you will make a buffer with a pH of 11.80 using solid Na2HPO4 and either 2.00 M NaOH or 2.00 M HCL. The most concentrated component should have a concentration of 0.50 M, and you need to make

    asked by Celina Sandoval
  58. Chemistry

    is Fe3O4 + 4H2 = 3Fe + 4H2O spontaneous at 298 K? Delta H system= 149.8 kj/mol Delta S system= 610.0 kj/mol

    asked by Riley
  59. Us history help please

    Can someone check my work please? 1. In general, what happened to the price of sugar and rum between April and September 1777? The prices went up extremely high and that's what begin of the Boston tea party incident. 2.Why was this happening? Because they

    asked by Alexus
  60. math

    a factory can produce 45 containers of yogurt in t minutes, 950 grams of fruit are used for every 25 containers of yogurt b) find in terms of t the time taken by the factory to produce 100 containers of yogurt c) if t=6 find the amount of fruit used in

    asked by tom
  61. Ms. Sue Please HELP

    Adam is 5 years younger than Eve. In 1 year, Eve will be three times as old as Adam was 4 years ago. Find their ages now.

    asked by Annie
  62. algebra

    Find S25 for 1/2 + 1 + 3/2 + 2 +... A. 160 B. 162 C. 160.5 D. 162.5 I think D

    asked by drew
  63. Chemistry

    If 8.5g of pure ammonium phosphate , (NH4)3PO4(s), is dissolved in distilled water to make 400mL of solution, what are the concentrations (in moles per litre) of ions in the solution. How would I solve this type of stoichiometric problem. I know the steps

    asked by Kristien
  64. DYNAMICS

    The 10-lb has an initial velocity of 10ft/s on the smooth plane. If a force F=(2.5t), where t is in seconds, acts on the block for 3s, determine the final velocity of the block and the distance the block travels during this time.

    asked by HELP
  65. algebra

    Translate the phrase into a mathematical expression and then simplify. Nine times a number decreased by six times the same number. My answer is 9x-6x Write the corresponding mathematical expression. The simplified expression is______? I do not know this

    asked by kita
  66. UTA

    A vertical straight wire carrying an upward 35 current exerts an attractive force per unit length of 8.0×10−4 on a second parallel wire 7.5 away. What current (magnitude and direction) flows in the second wire?

    asked by Wilwit1l
  67. Algebra 1 Part 2

    What are the minimum,first quartile,median,third Quartile,and maximum of the data set?5 55,62,61,54,68,72,59,61,70.

    asked by Karen
  68. stats

    which test to use One-sample or independent samples t-test? A researcher tests five individuals who have seen paid political ads about a particular issue. These individuals take a multiple-choice test about the issue in which people in general (who know

    asked by kelly
  69. Physics

    A boat is pulled through a canal by horses walking parallel to the canal and exerting a force of 1000 N on a tow rope 40 meters long. If the distance from the boat to the horse track is 15 meters, what is the magnitude of the effective component pulling

    asked by Dylan
  70. math hw

    the areas of two rectangles are 15 square inches and 16 square inches. the length and width of both figures are whole numbers. if the rectangles have the same width, what is the greatest possible value for their widths? please show work

    asked by ellis
  71. physics

    the resistance of copper wire of length 1m is 0.1 ohm the diameter of the wire is 0.045cm find its specific resistance

    asked by amit kumar
  72. chemistry

    Serum taken from a patient being treated with lithium for manic-depressive illness was analyzed for lithium concentration. A reading of 291 units was obtained for the intensity of the 671 nm red emission line. Then 1.00 mL of a 11.7 mM Lithium standard was

    asked by Anonymous
  73. math

    A rectangular photograph is mounted on a rectangular card. There is a border ofequal width around the photograph. The perimeter of the card is 40 centimeters longer than that of the photograph. Find the width of the border in centimeters.

    asked by shannon
  74. English

    The students felt fairly prepared for whatever tests their instructors might give them, after years of intense studying, however difficult the test might be. which group of words is misplacef in the sentence above? a.however difficult they might be b. the

    asked by mary
  75. algebra

    Regrind, Inc. regrinds used typewriter platens. The cost per platen is $1.70. The fixed cost to run the grinding machine is $267 per day. If the company sells the reground platens for $4.70, how many must be reground daily to break even?

    asked by jon
  76. Algebra

    Chuck and Dana agree to meet in Chicago for the weekend. Chuck travels 236 miles in the same time that Dana travels 224 miles. If Chuck’s rate of travel is 3 mph more than Dana’s, and they travel the same length of time, at what speed does Chuck

    asked by Chuck
  77. CHEMISTRY

    Determine if it is polar or non-polar molecule: C3H6O C2H5OH SiCl4 NH3 CO2 C3H8 H2O N2 My ans are: Polar Polar Polar polar Nonpolar nonpolar polar Nonpolar are my answers correct????

    asked by nidscorection
  78. computer

    the cost of 12 pencils is rs20.25 . dead a flowchart to calculate the cost of 1 pencil. tell the flowchart of this

    asked by ridham
  79. Chemistry

    Which compound would you expect to have the lowest melting point? Base your answer off of the bonding theory presented in this course. MgO BeS NaCl KCl

    asked by Anonymous
  80. Physics

    Point charges Q1 ,Q2 , and Q3 reside on three corners of a square with sides of 1m ; the distance from Q2 to P3 is 2m (see diagram). (a) What is the electric potential,V , at P1 ? (Normalize the potential to be zero at infinity and give your answers in

    asked by P
  81. Chemistry

    I've tried to answer some -The reaction mechanism for a reaction is as follows… Step 1 O3 (g) + NO2 (g)→ NO3 (g) + O2 (g) slow Step 2 NO3 (g) + NO2 (g) → N2O5 (g) fast a. Write the overall reaction equation. b. Identify the molecularity of each step.

    asked by m
  82. algebra

    Find S25 for (-7) + (-2) + 3 + 8 +... A. 1,320 B. 1,325 C. 825 D. 820 I think A

    asked by drew
  83. chemistry

    At a particular pressure and temperature, it takes just 2.040 min for a 3.632 L sample of F2 to effuse through a porous membrane. How long would it take for the same volume of UF4 to effuse under the same conditions

    asked by michael
  84. Physics

    An electron of mass me and charge q=-e is injected horizontally midway between two very large oppositely charged plates. The upper plate has a uniform positive charge per unit area +σ and the lower plate has a uniform negative charge per unit area -σ .

    asked by P
  85. math

    using past data, an airline believes that 8% of the people who make reservation for a particular flight will not appear. for this flight, the seating capacity is 300 passengers and the airline sells 315 tickets. what is the probability that everyone who

    asked by drishya
  86. Physics

    Three infinite uniformly charged thin sheets are shown in the figure below. The sheet on the left at x=-d is charged with charge per unit area of -3σ , The sheet in the middle at x=0 is charged with charge per unit area of +σ , and the sheet on the right

    asked by P
  87. Reading

    Not sure which answers to use.. please help: choose from these words: deficit, dissent,lucrative and agnostic.. 1& 2: My uncle decided to splurge and _____ with a country club because golf is his favorite_________.(Dissent & lucrative) 3 & 4 : Because my

    asked by sam
  88. Science

    Does all the water which rises up a plant escape through the leaves?

    asked by Shane
  89. Math...

    Jennifer is 6 years older than Sue. In 4 years, she will be twice as old as Sue was 5 years ago. Find there ages now

    asked by Anomyous
  90. ap chemistry

    A 37 mL sample of a solution of sulfuric acid is neutralized by 42 mL of a 0.113 M sodium hydroxide solution. Calculate the molarity of the sulfuric acid solution. Answer in units of mol/L

    asked by cheri
  91. Physics

    At t = 0, a wheel rotating about a fixed axis at a constant angular deceleration of 0.37 rad/s2 has an angular velocity of 0.5 rad/s and an angular position of 8.5 rad. What is the angular position of the wheel after 2 s? Answer in units of rad

    asked by dallas
  92. help

    what is the answers to chapter 13 study guide for social studies?

    asked by juju
  93. Math

    You roll a blue number cube and a green number cube. Find P a number greater than 2 on the blue cube and an odd number on the green cube.

    asked by Drea
  94. Algebra

    Two of the top-grossing concert tours were by a jazz band and a rock band. Together the two tours visited 178 cities. The jazz band visited 92 cities more than the rock band. How many cities did each group visit?

    asked by Jon
  95. physics

    The electrons in a beam are moving at 2.8 × 108 m/s in an electric field of 17000 N/C. What value must the magnetic field have if the electrons pass through the crossed fields undeflected? Answer in units of µT

    asked by Anonymous
  96. math

    Round 9.098 to the nearest tenth. Please answer and explain

    asked by Anonymous
  97. physics

    Tarzan, King of the Jungle (mass = 73.2 kg), grabs a vine of length 14.1 m hanging from a tree branch. The angle of the vine was 25.9° with respect to the vertical when he grabbed it. At the lowest point of his trajectory, he picks up Jane (mass = 41.0

    asked by Michael
  98. Sentence Question?? LANG ARTS

    Choose the option that corrects the sentence below. "Commander-in-Chief Sam Houston defeated the Mexican army and captured Santa Anna in 1836." A. Commander-in-Chief, Sam Houston, defeated the Mexican army and captured Santa Anna in 1836. B.

    asked by BoopityPoo
  99. trigonometry

    From a point 55 feet in front of a church, the angles of elevation to the base of the steeple and the top of the steeple are 35 degree and 49 degree 20 minutes, respectively, Find the height of the steeple. (Round your answer to one decimal place).

    asked by andre lessa
  100. chemistry

    If methane at a pressure of 3.2 atm and at 21 °C is introduced into a container, the gas be heated to ______°C to increase the pressure to 12 atm. is it 352???

    asked by kelvin
  101. Analytical Chemistry

    Serum taken from a patient being treated with lithium for manic-depressive illness was analyzed for lithium concentration. A reading of 291 units was obtained for the intensity of the 671 nm red emission line. Then 1.00 mL of a 11.7 mM Lithium standard was

    asked by Brian
  102. Physics..PLZ HELP!

    The magnitude of the magnetic field 8.0 cm from a straight wire carrying a current of 6.0 A is A) 3.0 ƒÎ ~ T. B) 1.5 ~ T. C) 1.5 ~ T. D) 3.0 ~ T. E) 3.0 ~ T.

    asked by April
  103. help

    what is the answers to chapter 13 study guide for social studies?

    asked by juju
  104. math

    Tom deposits $1000.00 in a savings account that earns 5% simple interest. How long will it take for the total of his account to reach $1350.00

    asked by jo y morgan
  105. Algebra 1 Part 2

    Simplify the radical expressions: (1).sqrt75+sqrt3. (2).sqrt7(sqrt14+sqrt3

    asked by Karen
  106. Algebra

    A store mixes Kenyan coffee worth $11 per kilogram and Turkish coffee worth $13 per kilogram. The mixture is to sell for $12 per kilogram. Find how much of each should be used to make a 348-kilogram mixture. How many kilograms of the Kenyan coffee should

    asked by Chuck
  107. Algebra

    Joan Arlington has twice as much money invested at 5% simple annual interest as she does at 4%. If her yearly income from the two investments is $378, how much does she have at each rate?

    asked by Jon
  108. Algebra

    Soybean meal is 16% protein; cornmeal is 8% protein. How many pounds of each should be mixed together in order to get 320-lb mixture that is 10% protein?

    asked by Jon
  109. physics

    Tiger Woods can hit a golf ball quite hard. A golf ball just after being hit by Mr. Woods has a kinetic energy of 100 J and a momentum of 3 kg m/s. What is the mass of the golf ball in grams?

    asked by nice
  110. Finding OH-,H3O+, pH, and pOH?

    Hi! I am very stuck with these problems. I have tried to solve for each of these values, but I keep getting the answers wrong. Q: For each of the following strong base solutions determine OH-, H3O+, pH, and pOH: 8.66×10−3 M LiOH 1.15×10−2 M Ba(OH)2

    asked by Amy
  111. Adult Development and Life Assessment

    The ________________ stage of Erikson’s model of psychosocial development is like a “hub” that early stages lead to and later stages depend on. identity vs. identity confusion intimacy vs. isolation generativity vs. stagnation autonomy vs. shame and

    asked by Christine
  112. Chemistry

    I've figured out most of it. I'm not sure how to find the percentage ofd the isotope. Define the half life. The half-life of a radioisotope is found to be 4.55 minutes. If the decay follows first order kinetics, what percentage of isotope will remain after

    asked by m
  113. Physics

    A radio tunes in radio waves which have a wavelength of 3.13 meters. What frequency is the radio tuned to in MHz?

    asked by Alex
  114. Physics

    A 100 watt bulb emits light in all directions. The distance R from the bulb is equal to 1.0 meter. Complete the table below with calculated values of intensity of the bulb. Distance from Source Intensity (W/m2) R ? 2R ? 3R ? c) If the bulb was replaced by

    asked by Alex
  115. statistics

    An April 15, 2002 report in Time Magazine stated that the average age for women to marry in the United States is now 25.1 years of age. If the standard deviation is assumed to be 4.6 years, find the probability that a random sample of 34 U.S. women would

    asked by Kay
  116. maths-perimter

    The hypotenuse of a right angled triangle is 20 m. If the difference between the length of the other sides be 4m. find the other sides?

    asked by anchal
  117. 6th math

    a factory can produce 45 containers of yogurt in t minutes, 950 grams of fruit are used for every 25 containers of yogurt b) find in terms of t the time taken by the factory to produce 100 containers of yogurt c) if t=6 find the amount of fruit used in

    asked by cam
  118. Math 6th grade

    The base of the skateboard ramp has an area of 2.3 m square meters the height of the ramp is 1.2 m find the volume of the rectangular prism?Please help!

    asked by Carolyn
  119. PREPARING FOR BUSINESS SUCCESS

    One of the unexpected drawbacks of starting your own business is

    asked by Anonymous
  120. Algebra

    SOlve you have 78 feet of fencing to enclose a rectangular pasture by a barn. If you do not fence the side along the barn, find the length and width of the lot that will maximize the area

    asked by Anonymous
  121. Math

    The price of a home is $185,000. A down payment of 10% is required with 2 points at the time of closing. The home is financed over a 25 year period with a fixed rate of 4.5%. Find the monthly payment and total interest paid?

    asked by Stacey
  122. Chemistry

    I've figured out the Ea but I'm not sure how to find the kcal/mol The gas reaction N2O5 → 2NO2 + 1/2O2 follows the Arrhenius equation k = Ae(-Ea/RT) where R = 8.314 J K-1 mol-1 and 1 calorie = 4.184J. At the temperature T=273K, k = 3.46 x 10-5 s-1,

    asked by m
  123. math

    solve the compound inequality write the solution in interval notation 2u+4>-6 and 3u-6> -3

    asked by Anonymous
  124. Physics

    Two conducting thin hollow cylinders are co-aligned. The inner cylinder has a radius R1 , the outer has a radius R2 . Calculate the electric potential difference V(R2)-V(R1) between the two cylinders. The inner cylinder has a surface charge density of

    asked by P
  125. math

    Tom deposits $1000.00 in a savings account that earns 5% simple interest. How long will it take for the total of his account to reach $1350.00

    asked by jo y morgan
  126. Chemistry

    Given…Overall reaction: 2 NO2 (g) + F2 (g) → 2 NO2F (g) Rate = k[NO2][F2] a. Can this be a single step reaction? b. Postulate a mechanism using experimental data and chemical intuition come up with a mechanism that fits.

    asked by m
  127. Statistics

    An April 15, 2002 report in Time Magazine stated that the average age for women to marry in the United States is now 24.5 years of age. If the standard deviation is assumed to be 4.1 years, find the probability that a random sample of 32 U.S. women would

    asked by Paul
  128. 3rd grage math

    there are 6 teams in the youth basketball league. during the season, each team plays 15 games.how many total quarters of basketball are played in all of the teams games during the season.

    asked by mythreyee
  129. Algebra

    A store mixes Kentucky bluegrass worth $11 per pound and ryegrass worth $14 per pound. The mixture is to sell for $13 per pound. Find out how much of each should be used to make a 588 pound mixture. How many pounds of the Kentucky bluegrass should be in

    asked by Jon
  130. Physics

    Two spherical conductors, A and B , are placed in vacuum. A has a radius rA=25cm and B of rB=35cm. The distance between the centers of the two spheres is d=225 cm. A has a potential of VA =120 Volt and B has a potential of VB = -40 Volt. a. An electron is

    asked by P
  131. math

    You deposit $24000 in an account that pays 2.4% annual interest compounded continuously. What is the balance after 5 years?

    asked by austin
  132. statistics

    The average admission charge for a movie is $6. if the distribution of movie admission charges is approximately normal with a standard deviation of $1, what is the probability that a randomly selected admission charge is less than $3.5?

    asked by Shenelle
  133. probability

    six out of every 400 cans of paint are found to be defective. If you buy four cans of paint,what is the probability that one can will be defective.

    asked by sarah
  134. Programming (Visual Basic)

    Im seem to be having trouble with this Exercise. Would you mind helping me please? How do i do this Visual Basic program? Instructions say: Fix the following code: Dim dblRegularPay As Double Dim dblOvertimePay As Double intRegularPay = 783.87

    asked by Derek
  135. math

    two mechanics worked on a car the first mechanic worked for 5 hours and the second mechanic worked for 15 hours together they charged a total of 1750 what was the rate charged per hour by each mechanic if the sum of the two rates was 160 per hour

    asked by mace
  136. calculus

    The radius of a circular oil spill is increasing at a rate of 10 feet per hour. How quickly is the surface area changing when the radius is 200 feet? Please help... Lost

    asked by hojo
  137. algebra

    the two outer terms of a proportion

    asked by teressa
  138. physics

    Gymnasts can do all sorts of ridiculous tricks on various equipment. In the rings event, the gymnast is supported by two rings attached by cords to the ceiling (see a picture here). If a gymnast weighs 75 kg and is motionless on the rings, what is the

    asked by nice
  139. Math

    The base of the skateboard ramp has an area of 2.3 m square meters the height of the ramp is 1.2 m find the volume of the rectangular prism? Help please

    asked by Carolyn
  140. english

    Do you think that certain literature should be taught and/or anthologized because it is written by a woman or underrepresented ethnic group, even if it is at the expense of a "more inspiring" author? Do you think you would feel the same way if you were a

    asked by Anonymous
  141. Chemistry

    Chlorofluorocarbons (CFC's) are organic compounds that have been implicated in ozone depletion. When the CFC known as Freon 12 (CCl2F2) is exposed to UV radiation (wavelength in the range of 10 nm to 400 nm, a bit shorter than visible light), a chlorine

    asked by Anonymous
  142. math

    A motorcycle leaves colorado springs, colorado, traveling north on I25 at an average speed of 47 mph. one hour later, a car leaves colorado springs, traveling south on I-25 at an average speed of 54 mph. How long after the motorcycle leaves will it take

    asked by kelly
  143. physics

    A 346 W bulb and a 173 W bulb are both designed to operate at standard household voltage of 120 V. Determine which bulb has the lower filament resistance and then calculate the value of its resistance. Answer in units of Ω

    asked by Anonymous
  144. cultural diversity

    Child-rearing practices in which children are expected to sleep alone, toddlers are epected to self-feed, and preschoolers are encouraged to compete and/or do their best are likely to be contrary to beliefs and practices held by parents and guardians who

    asked by ray
  145. Physics

    An electron is projected, with an initial speed of vi=2.06e+05 m/sec, directly towards a proton that is essentially at rest. If the electron is initially a great distance from the proton, at what distance from the proton is its speed instantaneously equal

    asked by P
  146. Algebra

    The two largest oil spills together released 286 million gallons of oil into the oceans. The smaller of the two released 58 million gallons less than the larger of the two. How many million gallons did the larger one release?

    asked by Jon
  147. Soc. Studies - Help please

    2nd time asking this question - need further clarification - please What was the outcome of the Alliance for Progress? A.Americans opposed Kennedy’s policies. B.Relations between the United States and Latin America improved. C.Relations between the

    asked by cassie
  148. maths-triangles

    how can we obtain the areas of the irregular polygans or irregular shapes or just any closed curve...?? if we know the perimeter of that shape than do v need to divide it into any kind of simpler shape like triangle

    asked by anoynomous
  149. Spanish

    Hi! I did the work but I'd like to know if my answers are right; we were supposed to answer these questions with complete sentences: 1. ¿Alguna vez has comido insectos? Answer: Afortunadamente, no he comido insectos. 2.¿Cuánto tiempo has estudiado

    asked by Vicky
  150. algebra

    the primeter of a rectangle is 24ft. the length is 2 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. Is the answer for the lenght 16ft and 8ft for the

    asked by ashley
  151. 3rd grade math

    there are 6 teams in the youth basketball league. during the season, each team plays 15 games.how many total quarters of basketball are played in all of the teams games during the season. each game made up of 4 quarters.

    asked by mythreyee
  152. Finance

    AQ&Q has EBIT of $2 million, total assets of $10 million, stockholders' equity of $4 million, and pretax interest expense of 10 percent. A. What is AQ&Q's indifference level of EBIT? B. Given its current situation, might it benefit from increasing or

    asked by Anonymous
  153. math

    pete and sean decide to raise money for a charity by having a carnival in their backyard. in one of the games that they set up, the probability that a person will win is.4. if robyn plays that game nine times, what is the probability that she wins exactly

    asked by zarina
  154. Chemistry

    If you have 1.90 mol of H_2 , how many grams of NH_3 can be produced?

    asked by Nancy
  155. life orientation

    Identify and describe 3 environmental health hazards that cause ill health,crises,and or disasters within my community or any other community within south africa and globally

    asked by mbali
  156. Physics

    I came here earlier with this question: "A force of 20 N acts toward the west. Another force acts at the same point so that the resultant of the two forces is zero. What is the magnitude and direction of the second force?" I was wondering if someone could

    asked by Shelby
  157. Chemistry

    What are the attractive forces that increase surface tension? -Would it be cohension and adhension? Thanks

    asked by Shadow
  158. Chemistry

    Which compound would you expect to have the highest melting point? Base your answer off of the bonding theory presented in this course.

    asked by Anonymous
  159. tempe

    An April 15, 2002 report in Time Magazine stated that the average age for women to marry in the United States is now 24.5 years of age. If the standard deviation is assumed to be 4.1 years, find the probability that a random sample of 32 U.S. women would

    asked by Paul
  160. Spelling Analogy

    glue: sticks thorns:?

    asked by Anonymous
  161. algebra

    Chuck and Dana agree to meet in Chicago for the weekend. Chuck travels 236 miles in the same time that Dana travels 224 miles. If Chucks rate of travel is 3 mph more than Danas, and they travel the same length of time, at what speed does Chuck travel?

    asked by Chuck
  162. Algebra

    Suppose that x liters of 40% acid solution are mixed with y liters of a 43% solution to obtain 100 L of a 41% solution. One equation in a system for solving this problem is x + y = 100. What is the other equation?

    asked by Jon
  163. Math

    What is the principle and the interest? A=$2719.50 P= ? r=6.1% t=20 years What is the interest rate? Balance= $3742.50 p=$3000 interest rate= ? t=45 months

    asked by Betsy
  164. Spanish

    Hi! I did the work but I'd like to know if my answers are right; we were supposed to answer these questions with complete sentences: 1. ¿Alguna vez has comido insectos? Answer: Afortunadamente, no he comido insectos. 2.¿Cuánto tiempo has estudiado

    asked by Vicky
  165. Physics

    A point-like negatively charged particle of mass m and charge -q is initially released from rest from the point P along the positive z-axis where the magnitude of the electric field is largest. (a) What is the distance from the point P to the origin?

    asked by P
  166. math

    The radian measure of an angle of 182 degrees is

    asked by tyler
  167. stats

    below is the sales experience(in months) and the number of computers sold the the previous month of seven sales people. Experience 4 12 9 6 10 30 7 Sales 19 42 28 31 39 30 21 Using the Minitab info write the straight line(least squares) equation and the

    asked by Bonnie
  168. English

    How is the word any both singular and plural?

    asked by Jerald
  169. Science

    calculate molarity if H3PO4 from phenolphthalein titre (21ml) assuming it to be dibasic H3PO4 + 2NaOH ---> Na2HPO4 + 2H2O

    asked by Meave
  170. algebra

    Find the 11th term of the arithmetic sequence 7, 4.4, 1.8, -0.8, … A. -33 B. -19 C. 33 D. 19 B

    asked by drew
  171. algebra

    the sets D and E are defined as follow D={v/v>1} and E={v/v>5} write DUE and DNE using interval notations if set is empty write 0

    asked by Anonymous
  172. Math

    The base of the skateboard ramp has an area of 2.3 m square meters the height of the ramp is 1.2 m find the volume of the rectangular prism

    asked by Juan
  173. Math

    A tree in the park makes a shadow on the ground at the same time the basketball post makes a shadow on the ground, as shown. If the height of the basketball post is 10 feet tall, and casts a 30 foot shadow, and the tree casts a 60 feet shadow, use

    asked by Shelia
  174. chem

    A balloon occupies a volume of 352 cm3 at 615 Torr and 19 oC. If the pressure is changed to 410 Torr, what temperature must the gas in the balloon have to occupy the same volume?

    asked by mia
  175. Geometry

    A six foot person is walking away from an 18 foot pole. Express the distance between the pole and the person in terms of the length of the persons shadow.

    asked by Jack
  176. Analytic geometry - finding point by intersect lin

    I have a triangle ABC. The slope of AB is -1/ab, the slope of AC is -1/ac, and the slope of BC is -1/ac. My question is, I have 3 lines: Altitude from A to BC, altitude from B to AC, and altitude from C to AB. I know their slope because it is just

    asked by Knights
  177. Physics

    An object with mass 5.0 kg is attached to a spring with spring stiffness constant 192 N/m and is executing simple harmonic motion. When the object is 0.35 m from its equilibrium position, it is moving with a speed of 0.02 m/s. Calculate the amplitude of

    asked by Anonymous
  178. Physics

    An airplane is flying in a horizontal circle at a speed of 104 m/s. The 73.0 kg pilot does not want the centripetal acceleration to exceed 6.98 times free-fall acceleration. Find the minimum radius of the plane’s path. The acceleration due to gravity is

    asked by Anonymous
  179. stats

    Which test do you use to solve this problem One-sample or independent samples t-test? Over the summer I asked my statistics students to report their gender and their level of statistics anxiety. Using a one-tailed test, determine whether females have more

    asked by Anonymous
  180. Math

    2x-x=1.5

    asked by Arianna
  181. College Mathematics

    write the statement in symbolic form. Let p: The Temperatue is 90 degrees Let q: The air conditioner is working Let r: If the apartment is hot and the air conditioner is working, then the temperature is 90 degrees.

    asked by Lisa
  182. TRIGONOMETRY HELP

    Prove that: cos²Θ - sin²Θ = 2cos²Θ - 1

    asked by CARL
  183. algebra

    the primeter of a rectangle is 24ft. the length is 2 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, write the first equation. 2x+2y=__ write the

    asked by ashley
  184. math

    A manager of an electronics store takes a random sample of large shipments of circuit boards to determine if he will accept the delivery. he randomly samples 20 boards from a shipment and will reject the delivery if more than 1 circuit board is defective.

    asked by jack
  185. algebra

    the primeter of a rectangle is 24ft. the length is 2 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. is the answer for the length 14ft and the width

    asked by ashley
  186. physics

    Jacob found a piece of a broken glass bottle. He picked it up and made these observations about it: 1. No color (clear) 2. Makes scratches on wood 3. Has a bumpy surface 4. Broke when I dropped it He thinks the glass is a solid and most of his observations

    asked by Sara
  187. Math

    Comparing Fractions Writing to explain James says that 5/5 is greater than 99/100. Is he correct? Explain.

    asked by April
  188. calculus

    Evaluate the following line integral: ∮C[(4x^2+3x+5y)dx+(6x^2+5x+3y)dy] where C is the path around the square with vertices (0,0),(2,0),(2,2) and (0,2).

    asked by Anonymous
  189. Calc

    Let f(x) = (2/3)x^3 - 2x + 1 with a restricted domain of [1,infinity]. What is the value of (f-1)'(x) when x = 13?

    asked by Lost One
  190. ap chemistry

    In neutralization reactions, acid + base ! salt + water HCl can be neutralized with NaOH. How many moles of NaOH will it take to neutralize 0.31 L of 0.7 M HCl? Answer in units of mol

    asked by cheri
  191. accounting

    Acme Corporation issued $650,000, 8%, bonds for $720,000. Was the market rate on the date of issue higher than, lower than, or equal to the stated rate of interest?

    asked by nick
  192. accounting

    Acme Corporation issued $650,000, 8%, bonds for $720,000. Was the market rate on the date of issue higher than, lower than, or equal to the stated rate of interest?

    asked by nick
  193. kv

    A reference solution is to be prepared with 5 PPM parabenzopyrene (molecular weight = 252). The quantity of parabenzopyrene required for preparing one litre 5 PPM solution is

    asked by poonam
  194. General Biology

    Darwin used which of the following terms to describe the process by which those individuals that possess superior physical, behavioral, or other attributes are more likely to pass their traits to the next generation?

    asked by Rena
  195. algebra

    Find S10 for 2 + 5 + 8 +... A. 155 B. 152 C. 255 D. 135 I say A.

    asked by drew
  196. Math

    After sales tax is added the total cost of 58.00 dollars purchade is 61.48 dollars What is the sales tax rate on the purchase? The bill at a restaurant is $59.29. Estimate the amount to leave for a tip of 15% The average snowfall each winter at a ski

    asked by Ryan
  197. Precalculus

    Please help me. Solve the system algebraically. 16)y=x^3+x^2 y=3x^2

    asked by Phoebe
  198. Stats

    Could someone please explain to me how I would read a z table. I have a z score of 2.2 and I need to know what the percentages is. Then if I'm given 8% how do I find the z score?

    asked by Bonnie
  199. cultural diversity

    Linda Arriaga teaches at The Young Wonders Preschool. Which one of the following elements is likely to play the most prominent role in the school's child-centered philosophy and mission statement? A. Collaboration between teachers/staff and families B.

    asked by ray
  200. biology

    I nead a list of diseases that's a failure to homeostasis.

    asked by chy
  201. Algebra

    Jon and Melissa agree to meet in Chicago for the weekend. Jon travels 236 miles in the same time that Melissa travels 224 miles. If Jons rate of travel is 3 mph more than Melissas, and they travel the same length of time, at what speed does Jon travel?

    asked by Please Help!
  202. Math/algebra

    The base of the skateboard ramp has an area of 2.3 m square meters the height of the ramp is 1.2 m find the volume of the rectangular prism?

    asked by Kimmy
  203. math

    solve the compound inequalities as demostrated being careful of how a negative x- term is handled in the solving process show all math work arriving at the solutions display a simple line qraph for each solution set as demostrated. -119 (your or Copmound

    asked by mace
  204. math

    write 3.85 x 10 to the negative 12th in scientific notation

    asked by Chance
  205. college math

    ticket for a concert cost $5.00 for adults, $3.00 for children and $2.00 for senior citizens. Revenue was $500.00 for 180 tickets. 10 times more adults than children attended. How many senior tickets were sold?

    asked by Anonymous
  206. chemistry

    if [NO]=2M , [N2] = 1M, and [O2]= 1M, is the reaction at equilibrium?

    asked by Anonymous
  207. Physics

    A dart gun is located 1 meter above the floor and is fired horizontally. the dart travels a horizontal distance of 4 meters when it hits the floor. what is the initial velocity if the dart when fired?

    asked by ryan
  208. Algebra 1Part 2

    Divide 3n^2-n/n^2-1/n^2/n+1

    asked by Karen
  209. 3rd grade math

    yolanda plays basketball in a youth league. each game is made up of 4 quarters, and each quarter is 8 minutes long. if yolanda plays every quarter during 7 games, how many minutes does she play in all.

    asked by mythreyee
  210. science

    For each of the following, choose the option that applies to case-control studies: a. The investigator's role regarding exposure: A assign B observe b. Subject selection into groups: A self-selection B randomization d. Directionality: A backwards B

    asked by suhad
  211. Algebra

    The volume of it is 1125 cubic inches, the length is 18 inches, and the width is 15 inches. Can you also show me how to do because I have a test on Friday! Thanks!!! :)

    asked by Dean
  212. math

    Suppose a car cost 32000 and you are allowed to make a down payment of 20%, but have to borrow the remaining 80%. If you are allowed 5 years to pay back the loan, how much will you pay back monthly?

    asked by Moyer
  213. marketing

    How to make segmentation for a healthy food restaurant ?

    asked by hana
  214. science

    What happens if water is lost from the leaves faster that it is taken up the roots?

    asked by Shane
  215. physics

    How fast would a 4-g fly have to be traveling to slow a 1890-kg car traveling at 51 mph by 6 mph if the fly hit the car in a totally inelastic head-on collision?

    asked by Michael
  216. Life orientation

    Identify the form of discrimination in the case study.how should discrimination in the work place be dealt with?

    asked by Tiyani
  217. nursing

    A physician orders dolasetron (Anzemet) 1.8 mg/kg IV for prevention of chemotherapy-induced nausea and vomiting. Dolasetron (Anzemet) is available in a 20 mg/mL vial. How many milliliters will be prepared and administered per dose to a 134-lb client? not

    asked by linda
  218. calculus

    Evaluate the following line integral: ∮C[(4x^2+3x+5y)dx+(6x^2+5x+3y)dy] where C is the path around the square with vertices (0,0),(2,0),(2,2) and (0,2).

    asked by Anonymous
  219. maths help plsss

    John,owner of a most exclusive nightclub was shot and killed ba a gang,after considerable effort on the part of the police,five men were arrested as suspects and were asked to say for themselves what they know of d case. Each man made three statements,two

    asked by me
  220. Math

    If triangle PQR is 14.5 then PQR=71, QPR =57 find the lengths of the sides PR and PQ

    asked by Mesh
  221. physics

    Jacob found a piece of a broken glass bottle. He picked it up and made these observations about it: 1. No color (clear) 2. Makes scratches on wood 3. Has a bumpy surface 4. Broke when I dropped it He thinks the glass is a solid and most of his observations

    asked by Sara
  222. Litreture

    Directions: For questions 19–20, read the passage. Select the letter that shows the best way to write each underlined part. If the underlined part contains no error, select “d. no error.” 18. world-famous mathematician (1 point) a.world-famous,

    asked by Anonymous
  223. algebra 1A

    find the slope, if it exists,of the line containing the pair of the points. (-2,-1) and (-20,-15).

    asked by tony
  224. College Mathematics

    write the statement in symbolic form. Let p: The Temperatue is 90 degrees Let q: The air conditioner is working Let r: If the apartment is hot and the air conditioner is working, then the temperature is 90 degrees.

    asked by Lisa
  225. math

    Maria used 2 boxes of sugar cubes to make a building. it was too small so she wanted to increase the size 3 times. how many boxes of sugar cubes will she need?

    asked by Kory
  226. Compensation and Benefits

    Compare and contrast the following methods of job evaluation, and include examples that are not the same as in the textbook to demonstrate understanding: Lott, Benge, and Multiple Regression. Identify the key differences.

    asked by Alfred
  227. Grammar

    Rives the paragraph below to create shorter, more direct sentences. Years ago, when most of today's model railroaders were still growing up, the toy world offed a number of fantastic electric train sets that included engines with real steam and whistles

    asked by Anonymous
  228. Chemistry

    dentify which bond you would expect to be the most polar. H-C H-F H-Cl H-S

    asked by Anonymous
  229. Chemistry

    I-I:150 F-F:160 C-C:350 H-H:435 (a) Calculate the energy of the I-F bond. Express your answer in units of kJ/mol. unanswered (b) Calculate the % ionic character of the I-F bond.

    asked by Anonymous
  230. MONGU COLLEGE

    A 1200 ohms resistance of AC 0.07H inductance coil and a 0.001mF capacitor are in series across a 120V source determine. a.frequency. b.current. c.impedance.

    asked by barotseland network
  231. prealgebra

    change 40 miles per hour to miles per second

    asked by garrett
  232. English

    3. “Aunt Dessie unfolded out of the car like a carpenter’s ruler” is an example of personification. symbol. simile. metaphor. I think its C.

    asked by Jman
  233. Calc pt2

    Original question: Posted by Lost One on Tuesday, March 5, 2013 at 12:04pm. Let f(x) = (2/3)x^3 - 2x + 1 with a restricted domain of [1,infinity]. What is the value of (f-1)'(x) when x = 13? •Calc - Steve, Tuesday, March 5, 2013 at 12:58pm since x =

    asked by Lost One
  234. Physics ~Thermodynamics~

    * Pressure * 1) what other ways can the pressure of a gas be changed? * Internal Energy * 2) A cup of hot tea is poured from a teapot, and a swimming pool if filled with cold water. a) Which one has a higher internal energy? b) Which has a higher average

    asked by Isis
  235. Math

    Please help!!!!!!!!!!! Find all solutions in the interval [0,2π). 7. 2 sin^2x=sin x Please help me!!!!!!!!!!!!

    asked by Phoebe
  236. statistics

    A balloon mannufacturer kows that historically her company has produced 614 balloons per day (standard deviation =36) she has changed the process and wants to know wheathert he new process is increased the number of ballons made. the sample mean is 620.

    asked by kim
  237. Math statistisc

    I have a 6 sided dice with numbers 1 to 6 written on faces. What number(s) would have to show up if you rolled the die five times in order to have the smallest possible standard deviation? What number(s) would have to show up if you rolled the die 5 times

    asked by Bonnie
  238. math

    Suppose a car cost 32000 and you are allowed to make a down payment of 20%, but have to borrow the remaining 80%. If you are allowed 5 years to pay back the loan, how much will you pay back monthly?

    asked by Moyer
  239. Algebra

    f(a)=r, f(b)=q, f(c)=t, f(d)=r Write functions as a set of ordered pairs. Give domain and range of t. f= type ordered pairs domain is range is

    asked by Ruth
  240. math

    Trish wants to rent a camera for the weekend. One company charges flat rate of $75/day. The other one charges $35/day plus $5/hour. Write two equations to represent this information.

    asked by Anonymous
  241. Chemistry

    If you have 1.90 mol of H_2 , how many grams of NH_3 can be produced?

    asked by Nancy
  242. Algebra

    Can you please solve this I don't understand I know the answer is b>3 but If you can break it down for me and show work? (: 3b+12>27-2b

    asked by Anon
  243. literacy

    Identify the publisher and the numbers for Ellison's 2002 edition Invisible Man

    asked by Anonymous
  244. math 116

    Someone please help me with this quesion. A barrel contains 192 gallons of paint and is being drained at a constant rate of 11 gallons per minute. Write an equation that number of gallons,g,after t minutes. The equation that models the given situation

    asked by meka a
  245. PLEASE HELP!!!

    Jon and Melissa agree to meet in Chicago for the weekend. Jon travels 236 miles in the same time that Melissa travels 224 miles. If Jons rate of travel is 3 mph more than Melissas, and they travel the same length of time, at what speed does Jon travel?

    asked by Jon
  246. algebra

    The cost of a car is multiplied by 0.02 the result is 175.. find the cost of the car.

    asked by Ruth
  247. stats

    Which test do you use to solve this problem One-sample or independent samples t-test? Over the summer I asked my statistics students to report their gender and their level of statistics anxiety. Using a one-tailed test, determine whether females have more

    asked by Anonymous
  248. chemistry

    is putting gas in a vehicle a physical or chemical reaction

    asked by kim
  249. ALGEBRA

    PLEASE VERIFY THE IDENTITY cot(theta-pi/2) = -tan theta

    asked by cooper roschuk
  250. College Math

    10a+ 10c + s = 180 5a + 3c + 2s = 500 a = 10c

    asked by Anonymous
  251. Math

    The sum of two numbers is 14. The difference of the numbers is 2. What are the numbers

    asked by Gio
  252. math

    what is four fifths+three fifths

    asked by brianna
  253. Algebra

    Chuck and Dana agree to meet in Chicago for the weekend. Chuck travels 236 miles in the same time that Dana travels 224 miles. If Chuck’s rate of travel is 3 mph more than Dana’s, and they travel the same length of time, at what speed does Chuck

    asked by Jon
  254. math, calculus

    A 3-dimensional structure is obtained from rotating the parabola y=x^2 about the y-axis. Each second, 2π units^3 of water is being poured into the structure from the top. When 8π units^3 of water has been poured in the structure, the instantaneous change

    asked by Anonymous
  255. Math

    He spent 2/3 of his money. The movie cost 6. How much does he have left

    asked by Mark
  256. science

    Suppose you wanted to produce 1.17 L of a 3.41 M aqueous solution of H2SO4. How many grams of solute are needed to make this solution? (H2SO4)

    asked by josselyne
  257. math

    Find the coordinates of the point of intersection of the plane 2x+y-3z+6=0 on the y-axis

    asked by tapz
  258. Spanish help please

    Can someone help me I really don't understand this and this is how far I got. 1. ¿ De dónde es la paella? Paella es más popular en el sur de España. 2. ¿Con qué se hace el flan? El flan se hace al horno 3. ¿Cuál (which) tipo de plátano frito es

    asked by Alexus
  259. Science

    According to Newton's second law of motion____. F = mv F = m/a a = Fnet /m F = ma

    asked by TheFriendlyUnicorn
  260. Chemistry

    Why is it important to identify the limiting reactant in stoichiometry?

    asked by Kristie
  261. Math

    There are 6 dancers in a program. Each dancer will preform a short dance with each of the other dancers before the program is over. How many dancers will there be

    asked by sam
  262. Maths

    The width of a rectangle is 12 units less than its length. If you add 30 units to both length and width, you double the perimeter. Find the length and with of the original rectangle.

    asked by Nkuna sizwe
  263. Life orientation

    What are basic condition of employment act?

    asked by Amogelang
  264. Algebra

    The number of state and federal inmates in millions during year x was x=2002 X CAN BE APPROXIMATED BY THE FOLLOWING n=0.03X-59.02 dETERMINE THE YEAR THERE WERE 101 MILLION INMATES

    asked by Ruth
  265. math

    Identify a variable that could be described with an approximately normal distribution, and explain how you came to this conclusion.

    asked by lily
  266. Algebra

    Please help with this: Write a polynomial in standard from with the zeros -2, -2 and 2. I remember that (x-a)(x-b)(x-c)=0 but I forget what exactly to do.

    asked by Trey
  267. chemistry

    what is the pH of a solution that has 12.2 grams of hydrochloric acid in 500 ml of water

    asked by kandace
  268. English

    ______ and______ have been to class a. He, me b. He,I c.him, m d.him, I

    asked by mary
  269. maths help plsss

    John,owner of a most exclusive nightclub was shot and killed ba a gang,after considerable effort on the part of the police,five men were arrested as suspects and were asked to say for themselves what they know of d case. Each man made three statements,two

    asked by me
  270. algreba

    one eight of a number reduced by three times the same number?

    asked by Anonymous
  271. computer science

    ). Find the median of the numbers in the array, and output the result. Use a subprogram to input the numbers, a function to find the median, and a subprogram to output the result.

    asked by Anonymous
  272. Math College

    Solve the Matrix 12 -3 8 01 2 4 00 1 2

    asked by Anonymous
  273. calculus

    Solve following equations e^2x-4e^x+3=03

    asked by preet
  274. Algebra

    Chuck and Dana agree to meet in Chicago for the weekend. Chuck travels 236 miles in the same time that Dana travels 224 miles. If Chuck’s rate of travel is 3 mph more than Dana’s, and they travel the same length of time, at what speed does Chuck

    asked by Jon
  275. Economics

    Present value equivalent for geometrically increasing series when the first year base of 4,000 increasing at 4% per year to year 15 at an interest rate 17% compounded continuously? urgent Help please

    asked by Doe
  276. Math

    Please help!!!!!!!!!!! Find all solutions in the interval [0,2π). 7. 2 sin^2x=sin x Please answer asap

    asked by Anonymous
  277. language

    Those trees have (fewer, less) fruit on them.

    asked by John
  278. Math

    The sum of two numbers is 14. The difference of the numbers is 2. What are the numbers

    asked by Gio
  279. Math

    Complete 0.246X10= Is it .0246

    asked by Nina
  280. algebra

    Find S10 for (-1) + (-7) + (-13) + (-19) +... A. 250 B. -280 C. (-23) D. 132 C.

    asked by drew
  281. Math

    A = P(1 + r)10 Hence = 500(1+0.05)10 = 814.45 Math?

    asked by Debra
  282. Algebra II

    Determine if the following equation is linear. -7^2+y^2-y^2=3x+7 Linear and Standard Form ______________ or Non Linear

    asked by Shelvia
  283. College Mathematics

    Construct a truth table for the statement (pq)--->p

    asked by Lisa
  284. Math

    There are 6 dancers in a program. Each dancer will preform a short dance with each of the other dancers before the program is over. How many dancers will there be

    asked by sam
  285. Math Statistics

    The hieght of women are approximately normally distributed with a mean of 65.4 inches and a standard deviation of 2.5 inches. What percent of these women would be over 70 inches or more? 70-64.5/2.5 = 2.2 Is this correct? How would I determine the hieghts

    asked by Bonnie
  286. Algebra

    Chuck and Dana agree to meet in Chicago for the weekend. Chuck travels 236 miles in the same time that Dana travels 224 miles. If Chuck’s rate of travel is 3 mph more than Dana’s, and they travel the same length of time, at what speed does Chuck

    asked by Jon
  287. math

    It takes Omar four minutes to eat eight carrot sticks. How long does it take him to eat one? Please answer and explain.

    asked by Anonymous
  288. calculus

    Please show me how you do this. Thank you. Calculate the definite integral: 2 ∫_ 2x dx 7

    asked by tommy9
  289. math

    Out on my street, there are a certain number of pigeons sitting on telephone poles. If there were exactly 2 pigeons sitting on each telephone pole, then 1 pigeon would have no space to sit on. If there were exactly 3 pigeons sitting on each telephone pole,

    asked by nice
  290. Accounts

    You notice that your accounts receivable days outstanding has doubled in the first 6 months. Do you give someone a bonus or put him or her on probation? Why?

    asked by Kelly
  291. math

    What are the last three digits of the greatest common divisor of 2^(2^100−1)−1 and 2(2^105−1)−1?

    asked by Anonymous
  292. Math-oops forgot info

    If a dice has 3 on the top, right back 6, right front 2, bottom 4, left front 1, left back 5 and is rotated by +180 about the z axis and +90 about the x axis, how many dots does each face have after the rotation?

    asked by PLEASE HELP
  293. Us History

    How did social responsibility of businesses change during the Great Depression era?

    asked by Jade
  294. Geometry

    a. If a spherical Triangle on Earth has an excess of 30 degrees, find the area of this spherical triangle measured in square miles. b. If a spherical triangle on the moon has an excess of 30 degrees, find the area of this spherical triangle in sqare miles.

    asked by PLEASE HELP
  295. Algebra

    What is the solution for this inequality? 8+6x≥7x+2-x

    asked by Stephanie
  296. 7th Math

    What is the function rule for 2,30 4,15 6,10 10,6 12,5 15,4 30,2

    asked by M
  297. College math

    10+ 10 + s = 180 5a + 3c + 2s = 500 a = 10c

    asked by Anonymous
  298. Math

    2 1/3 - 1 3/4=

    asked by Kim
  299. Precalculus

    Please help!!!!!!!!!!! Find all solutions in the interval [0,2π). 7. 2 sin^2x=sin x Please answer asap

    asked by Phoebe
  300. Life orientation

    3.2.1 what unethical behaviour is taking place on the case study?name two

    asked by Ramokone
  301. logic

    Out on my street, there are a certain number of pigeons sitting on telephone poles. If there were exactly 2 pigeons sitting on each telephone pole, then 1 pigeon would have no space to sit on. If there were exactly 3 pigeons sitting on each telephone pole,

    asked by Anonymous
  302. algebra

    I need to find the solution or no solution or infinite solutions to these two equations. x + 2y =4 9x - 4y = 3

    asked by DJDiamond
  303. math

    represent the number 24 by making equal groups (write the multiplication and addition sentence for each)

    asked by ??
  304. Math

    JAcob has 50 cent in quarters 60 cent in dimes and 85 cents in nickels what fraction of the coins are nickels?

    asked by J'ia
  305. Math statistisc

    I have a 6 sided dice with numbers 1 to 6 written on faces. What number(s) would have to show up if you rolled the die five times in order to have the smallest possible standard deviation? What number(s) would have to show up if you rolled the die 5 times

    asked by Bonnie
  306. Math statistisc

    I have a 6 sided dice with numbers 1 to 6 written on faces. What number(s) would have to show up if you rolled the die five times in order to have the smallest possible standard deviation? What number(s) would have to show up if you rolled the die 5 times

    asked by Bonnie
  307. Maths

    The width of a rectangle is 12 units less than its length. If you add 30 units to both length and width, you double the perimeter. Find the length and with of the original rectangle.

    asked by Nkuna sizwe
  308. English

    marco was careful to wash his hands because he did not want to contract a disease what is the meaning of the word contract as it is used in the sentence above? a. a binding agreement between two parties b. reduce in size c. acquired involuntarily d. make a

    asked by mary
  309. Math

    The volume of it is 1125 cubic inches, the length is 18 inches, and the width is 15 inches. Can you also show me how to do because I have a test on it Monday. Thanks!

    asked by Jessica
  310. Patterns

    Randy pushed a box up a hill. It turned over 15 times and then turned over 5 times as it rolled back down toward Randy. He pushed the box again, and it turned over 20 times before it rolled back 10times. Continue the pattern.

    asked by Armend
  311. Physics

    An astronomer looks at a comet which is 5.92 x 109 km away. How many minutes did it take the light from the comet to reach the astronomer?

    asked by Alex
  312. Math

    If a dice has 3 on the top, right back 6, right front 2, bottom 4, left front 1, left back 5 and is rotated by +180, how many dots does each face have after the rotation?

    asked by PLEASE HELP
  313. physics

    A mouse runs 3 m east and 4 m north in 5 seconds. What is the magnitude of the mouse's average velocity during its run in m/s?

    asked by nice
  314. maths help please

    A bucket contains 8m^3 of water. Using two smaller empty buckets of 3m^3 and 5m^3 respectively. How will you manipulate accurately so that 4m^3 is left in d biggest bucket?

    asked by me
  315. calculus

    e^2x-4e^x+3=03

    asked by preet
  316. calculas

    Write following equations in polar coordinate then graph them Y=4X

    asked by preet
  317. math

    6^(2log(x)) = 8

    asked by Katie
  318. calculas

    Solve following equations ¡¼tan¡½^(2 ) x-5tanx=-6

    asked by preet
  319. math

    y=1/3x+5 its a t-table x | y -3 | 0 3

    asked by Anonymous
  320. Life orientation

    In line 10-15 discuss 5 ways in which the human or environmental problem impacts on the community.

    asked by Mahlako
  321. English help

    add the comma to the sentence As they studied the film they noticed some rules of science at work i wrote mine like this As they studied the film, they noticed some rules of science at work

    asked by Abbey
  322. English

    I am writing a speech and It about a boy named Edward and he lost her mom when he was young. I need a hook in a question format. Please help. What should I write. Ex: Have ever realize...... I need something similar to this. Please Help!!!!!!

    asked by Darcy
  323. Math-geometry

    If a dice has 3 on the top, right back 6, right front 2, bottom 4, left front 1, left back 5 and is rotated by +180, how many dots does each face have after the rotation?

    asked by PLEASE HELP
  324. Life orientation

    What according to the Basic conditions of employment Act applies with regard to the contraventions identified?

    asked by Nkooe Junior
  325. MONGU COLLEGE

    A resistor of 15 ohms and an inductor of 4H and capacitor of 25 micro F are connected in series across 230V AC supply calculate. a.The frequency b.current c.voltage drop or pd across inductance.

    asked by barotseland network
  326. math

    Colin has 3 quarters. He says he has less than 8/10 of a dollar. Is he correct? Explain

    asked by Bianca
  327. College math

    10+ 10 + s = 180 5a + 3c + 2s = 500 a = 10c

    asked by Anonymous
  328. College math

    10+ 10 + s = 180 5a + 3c + 2s = 500 a = 10c

    asked by Anonymous
  329. math

    simpplify. (3x)^3 (note use positive exponents only.) my answer is 27x^3

    asked by john
  330. Algebra 1Part 2

    Divide 3n^2-n/n^2-1/n^2/n+1

    asked by Karen
  331. College math

    if f(x) =x+3/7 and g(x) =4+5x find (gof) (x)

    asked by Anonymous
  332. language

    Of the 2 swimmers, Dana is the (more better, best, better)

    asked by John
  333. maths-ecllipse

    Derive the equation of the ecllipse with center (h,k)

    asked by anoynomous
  334. math

    a professional gambler loaded

    asked by Anonymous
  335. math

    can one angle of a right triangle measure 100 degrees?

    asked by maria
  336. Math

    If a dice has 3 on the top, right back 6, right front 2, bottom 4, left front 1, left back 5 and is rotated by +180, how many dots does each face have after the rotation?

    asked by PLEASE HELP
  337. calculas

    lnx^10+ lnx^9 + …….lnx=10+9+8+…..1

    asked by preet
  338. algebra

    use substitution to solve the system -5x+24=27 and y=2x+11

    asked by Anonymous
  339. math

    solve the following system 8x+19=-19 -3x+7y=-24 x= y=

    asked by Anonymous
  340. algera 1A

    find the slope, if it exists,of the line containing the pair of the points. (-2,-11) and (-20,-15). I came up with (-2,-9)is this correct?

    asked by tony
  341. College math

    10+ 10 + s = 180 5a + 3c + 2s = 500 a = 10c

    asked by Anonymous
  342. math

    Kim has 4/10 of a dollar. Carla has 40/100 of a dollar. Who has more money? Explain

    asked by Bianca
  343. Math

    (7/9)/3=

    asked by Kim
  344. Math

    (2/5)/(1/10)

    asked by Kim
  345. science physice

    ascending with acceleration of 0.2m/s

    asked by Anonymous
  346. Math

    From the part of vessel travels 100NM due easy and changes its course 45degrees N of E and the travels on a distance of 50 NM.what is the distance of a vessel from port

    asked by Erl floyld
  347. Rational expressions

    (2c-d)/(c^2d)+(c+d)/(cd^2)

    asked by Rayyan
  348. math

    r=20kilometers t=4hours

    asked by Anonymous
  349. math

    If AB=BC=CD and A=3 and D=14, what is B?

    asked by Denise
  350. math

    y^2+4y-32=0 what is the greatest factor

    asked by sophie