Questions Asked on
October 25, 2014

  1. college algebra

    There were 39,000 desktop publishing jobs in the United States in 2000. It has been projected that there will be 64,000 desktop publishing jobs in 2010. (a) Using the BLS data, find the number of desktop publishing jobs as a linear function of the year.

    asked by Jesse
  2. algebra

    A piece of pottery is removed from a kiln and allowed to cool in a controlled environment. The temperature (in degrees Fahrenheit) of the pottery after it is removed from the kiln for various times (in minutes) is shown in the following table. Time, min

    asked by Jesse
  3. Chemistry

    Ammonium carbonate decomposes upon heating according to the following balanced equation: (NH4)2CO3(s)→2NH3(g)+CO2(g)+H2O(g) Calculate the total volume of gas produced at 24.0∘C and 1.02atm by the complete decomposition of 11.9g of ammonium carbonate.

    asked by Elizabeth
  4. algebra

    The rate at which water evaporates from a certain reservoir depends on the air temperature. The table below shows the number of acre-feet (af) of water per day that evaporate from the reservoir for various temperatures in degrees Fahrenheit. Temperature,

    asked by Jesse
  5. algebra

    A rental company purchases a truck for $14,500. The truck requires an average cost of $6.75 per day in maintenance. (a) Find a linear function that expresses the total cost C of owning the truck after t days. C(t) = 1 (b) The truck rents for $55.00 a day.

    asked by Jesse
  6. Maty

    Best Rentals charges a daily fee plus a mileage fee for renting its cars. Barney was charged $111.00 for 3 days and 300 miles, while Mary was charged $198.00 for 5 days and 600 miles. What does Best Rentals charge per day and per mile?

    asked by Mary
  7. intermidiate algebra

    Best Rentals charges a daily fee plus a mileage fee for renting its cars. Barney was charged $111.00 for 3 days and 300 miles, while Mary was charged $198.00 for 5 days and 600 miles. What does Best Rentals charge per day and per mile?

    asked by Mary
  8. theory of interest

    1.Two investments are made at the same time. The first consists of investing 1550 dollars at a nominal rate of interest of 7.9 percent convertible semiannually. The second consists of investing 1450 dollars at a nominal rate of interest of 7.9 percent

    asked by ALBERT
  9. Calc

    If the volume of a spherical balloon is changing at a rate of 10 cm3 /s, how fast is the surface area changing when the radius is 6.5 cm?

    asked by Andie
  10. statistics

    A random sample of 16 mid-sized cars tested for fuel consumption gave a mean of 26.4 kilometers per liter with a standard deviation of 2.3. (a) Assuming that the kilometers per liter given by all mid-sized cars have a normal distribution, find a 99%

    asked by Angee
  11. Algebra

    Line AB is parallel to line CD for A(4, -5), B(-2, -3), C(x, -2), D(6, y). Find a set of possible values for x and y.

    asked by Anonymous
  12. Chemistry

    please HELP!! mass of magnesium chloride =.2 mass of chlorine in magnesium chloride =.1 A)moles of magnesium? B)moles of chlorine? C)moles of magnesium divided by the smaller number of moles? D)moles of chlorine divided by the smaller number of moles?

    asked by Gina
  13. math

    A researcher is interested in estimating the average salary of Police officers in a large city. she want to be 95% confident that her estimate is correct. If the standard deviation is $1050, how large a sample is needed to get the desired information and

    asked by rowlene
  14. Math

    A rental agency claims that the average rent that small business establishments pay in Suva city is $800. A sample of 10 establishments shows an average rate of $863. The standard deviation of the sample is $20. At alpha = 0.05, is there enough evidence to

    asked by Anny
  15. Math

    The Suva Energy Information Administration reported that 51.7% of homes in Suva were heated by natural gas. A random sample of 200 homes found that 115 were heated by natural gas. Does the evidence supports the claim, or has the percentage changed? (use a

    asked by Krish
  16. Physics

    For the remaining parts of this question use the following settings in "Uniform circular motion" mode. The initial angular velocity is 4.1 rad/s and the radius is 4.1 cm. (c) What is the speed of the object at a time t = 3.0 s after the simulation is

    asked by G
  17. chemistry

    if 8 moles of fructose are fermented and 320g of ethanol is obtained,what is the yield of the fermentation

    asked by soffy
  18. math

    A caterer prepares three times as many pizzas as she usually prepares for a large party. The caterer usually prepares 5 pizzas. The caterer also estimates that each party guest will eat 1/3 of a pizza. First write an expression that represents this

    asked by kymy
  19. physics

    What is the electric field intensity of a point 15cm from a charge 15microcoulomb

    asked by favour
  20. chemistry

    what is the freezing point of 0.05 M glucose(C6H12O6), 0.05 M NaCl, and 0.05 M MgCl2?

    asked by rakesh kumar
  21. Chemistry

    How many moles of magnesium are in Magnesium Chloride?

    asked by Gina
  22. Math

    Jamal lives 8 blocks from school. Bethany lives 3 times as far from school as Jamal . Michael lives 4 times as far as Jamal and Bethany combined . Write a number sentence that compares how far from school Bethany lives to how far from school Michael lives.

    asked by Nnh
  23. statistics

    Tasha examined the correlation between the weight and fuel economy of the 20 top-selling cars. She observed that the coefficient of determination was 62.3%. For this data, the value of the correlation coefficient, r, is __________.

    asked by Casey
  24. maths

    A deck has 52 cards it has 13 in each type find the probability of getting a) a diamond card b) an ace card c) a red card d) a yellow card e) getting any card

    asked by John
  25. math

    What percent less than 45 is 25?

    asked by Righteous
  26. Math

    A tree is losing its trees. Two thirds fall off in the first week, two thirds of those remaining fall off in the second week, and two thirds off those remaining fall off in the third week. Now there are 37 leaves. How many leaves did the tree have

    asked by Lucy
  27. statistics

    given mean distance of 16 miles standard deviation of 8 miles with sample of 75 commuters what is probability of sample mean commute distance is greater that 13 miles Search instead for given mean distance of 16 miles standard deviation of 8 miles with

    asked by alma
  28. JAVA PROGRAMMING

    NEED HELP! I would like to create a class for finding the voltages of 1, 2 or even 4 batteries. The Class can be called BatteryVoltage with a default voltage value of 1.5 (AA Battery) Must allow the user to find the total voltage of batteries when

    asked by JORDAN
  29. geometry

    Quadrilateral Math has been dissected into squares. The area of the red square is 64 square units and the area of the blue square is 81 square units. Determine the dimensions and the area of Quadrilateral Math?

    asked by Maria
  30. statistics

    how do I find the correlation coefficient r? Jesse put the heartbeat and lifespan data into a statistical software program and found the coefficient of determination is 0.45. The value of the correlation coefficient is __________.

    asked by Casey
  31. physics

    a car accidently roll off a cliff. as it leaves the cliff it has a horizontal velocity of 13m/s.it hits the ground 60m from the shoreline. calculate the height of cliff.

    asked by betlehem
  32. statistics

    For a normal distribution (symmetrical), a value that is two standard deviations below the mean would be closer to which of the following? Select one: a. 89th percentile b. Third Quartile c. Third percentile d. Median

    asked by Anonymous
  33. Math

    Simplfy the following expression - 3x + 5x + y+y+y I think the answer is 8x + 3y Would I be right? Thank You

    asked by Matt
  34. Math

    Is this a true statement? x+x+x+2+3=3x+5 I think this is could you tell me if I'm right? Big test comming! Thanks

    asked by Nico
  35. physics

    A 20 g fridge magnet is being held onto the fridge by a 0.9 N force. coefficient of kinetic friction is 0.3 . a. calculate the friction acting on the magnet. b. calculate the weight of the magnet c.the acceleration of the magnet. also, explain the

    asked by sara
  36. physics

    A 20 g fridge magnet is being held onto the fridge by a 0.9 N force. coefficient of kinetic friction is 0.3 . (please include an FBD when giving the solutions) a. calculate the friction acting on the magnet. b. calculate the weight of the magnet c.the

    asked by Anonymous
  37. Physics

    A block of mass 11.2 kg slides from rest down a frictionless 24.0° incline and is stopped by a strong spring with a spring constant 31.3 kN/m (note the unit). The block slides 8.90 m from the point of release to the point where it comes to rest against

    asked by Serena
  38. music appreciation

    3.   When you hear a recurring melody in a programmatic piece like Symphonie fantastique, you're experiencing which of the following?      

    asked by milly
  39. chemistry lab

    If a portion of your aspirin sample had broken down, how would that effect the total amount of base used? What would the effect be on the percentage of aspirin in your sample?

    asked by jhon
  40. 8th grade language arts

    Which of the following best explains the difference between informative and explanatory text? a. Informative provides readers a sense of why something happens, while explanatory tells the order in which something happened. b.Informative provides a reason

    asked by a girl from connexus
  41. Precalculus

    An airplane flies 180 miles from point A in the direction 135° and then travels in the direction 240° for 90 miles. Approximately how far is the airplane from A? (Round your answer to the nearest whole number.)

    asked by Anonymous
  42. precalculus

    one section of a suspension bridge has its weight uniformly distributed between twin towers that are 400 feet apart and rise 90 feet above the horizontal roadway. a cable strung between the tops of the towers has the shape of a parabola, and its center

    asked by tim
  43. math

    Find the critical numbers of the function f(x) = x^{1/4}-x^{-3/4}.

    asked by Leah
  44. math

    Let f(x) = 3+4x-x^{3}. Find the open intervals on which f is increasing (decreasing). Then determine the x-coordinates of all relative maxima (minima). 1. f is increasing on the intervals? 2. f is decreasing on the intervals?

    asked by Anonymous
  45. Math

    Which verbal expression represents the algebraic expression? (A) 2 times a number minus 6 (B) twice the difference between 6 and a number (C) 6 less than twice a number (D) twice the difference between a number and 6 I think it's A, am I right? Thank You

    asked by Kyle
  46. Physics

    A(n) 160 g block is pushed by an external force against a spring with spring constant of 1260 N/m until the spring is compressed by 11.8 cm from its uncompressed length. The compressed spring and block rests at the bottom of an incline of angle θ =

    asked by Kristy
  47. Chemistry

    How does BF4^- make tetrahedral structure. Because B have 3 outermost electrons. It may combine with three fluorine. But how is it combining with 4?

    asked by Noor
  48. Physics

    A 1200 kg car pulls a 510 kg trailer. The car exerts a horizontal force of 4040 N against the ground in order to accelerate. What force does the car exert on the trailer? Assume an effective friction coefficient of 0.160 for the trailer.

    asked by Sandy
  49. Math

    A typist can type 146 words in 100 seconds. At this rate, how many minutes and seconds would it take him to type 657 words.

    asked by Nicki
  50. Lauren

    Let f(x) = 3+4x-x^{3}. Find the open intervals on which f is increasing (decreasing). Then determine the x-coordinates of all relative maxima (minima). 1. f is increasing on the intervals 2. f is decreasing on the intervals

    asked by Anonymous
  51. Chemistry

    For the complete combustion of 1.000 mole of ethane gas at 298K and 1 atm pressure, change in H= -1560 kJ/mol. What will be the heat released when 4.42g of ethane is combusted under these conditions?

    asked by Kristi
  52. Chem

    For a photon with  = 730 nm, determine its speed, frequency, energy, and color. For frequency the formula would be v=c/lambda 3.00x10^8/7.30x10^-7=2.19x10^14/s Speed c=(v)(lambda) C=(v)(lambda) C= (2.19x10^14/s)(1.37x10^-6)=3.00x10^8 I got the

    asked by Feather
  53. Math

    A rental agency claims that the average rent that small business establishments pay in Suva city is $800. A sample of 10 establishments shows an average rate of $20. At alpha = 0.05, there enough evidence to reject the agencies claim? Assume that the

    asked by Krish
  54. Math

    Meg's pension plan is an annuity with a guaranteed return of 7% per year (compounded quarterly). She would like to retire with a pension of $20,000 per quarter for 15 years. If she works 31 years before retiring, how much money must she and her employer

    asked by Robertta
  55. Precalculus

    The rectangular box shown in the figure has dimensions 10" × 7" × 3" (a = 10, b = 7, c = 3). Approximate the angle θ formed by a diagonal of the base and a diagonal of the 7" × 3" side. (Round your answer to two decimal places.)

    asked by Anonymous
  56. Pre-Calc/Trig

    How would I solve this? x^2+10x+24=0

    asked by BelovedAngel
  57. Criminal Justice/Report Writing

    In the sentence, “The report was mailed to the officer,” the writer is using: A. the active voice. B. the passive voice. C. chronological order. D. first person. I am confused between A & B

    asked by Pat
  58. Precalculus

    A reconnaissance airplane P, flying at 11,000 feet above a point R on the surface of the water, spots a submarine S at an angle of depression of β = 21° and a tanker T at an angle of depression of α = 39°, as shown in the figure. In addition, ∠SPT is

    asked by Anonymous
  59. Physics

    A 66.0 kg base runner begins his slide into second base when moving at a speed of 4.4 m/s. The coefficient of friction between his clothes and Earth is 0.70. He slides so that his speed is zero just as he reaches the base. (a) How much mechanical energy is

    asked by Caitlin
  60. Psychology

    I chose the letter to match the following theories and descriptions. Could please correct me to see if I chose the correct letter to match? I am matching the following theories and descriptions with the letters. Freud's personality theory. Erikson's

    asked by Sharon
  61. math

    carol is baking cookies and needs 2 1/4 cups of flour, 2/3 cup of white sugar, 1/4 cup of brown sugar, and 1/16 cup of baking soda. use this information to answer the following questions 2. if the amount of white sugar were increased by a factor of 2 1/2

    asked by kathy
  62. geomtry

    1/5 (a+10)=-3

    asked by bre
  63. physics

    To determine an athlete's body fat, she is weighed first in air and then again while she's completely underwater. It is found that she weighs 690 N when weighed in air and 36.0 N when weighed underwater. What is her average density?

    asked by Kaley
  64. csci 120

    Write a function that computes the balance of a bank account with a given initial balance and interest rate, after a given number of years. Assume interest is compounded yearly

    asked by jaspreet
  65. physics

    A Titan IV rocket has put your spacecraft in a circular orbit around Earth at an altitude of 230 km. Calculate the force due to gravitational attraction between the Earth and the spacecraft in N if the mass of the spacecraft is 2300 kg.

    asked by peter
  66. Math

    A solid sphere just fits inside a cube that has an edge length equal to the diameter of the sphere. The edge length of the cube is 5.8 cm. What is the volume of air in the cube to the nearest cubic centimetre?

    asked by Anonymous
  67. Pre-Calc/Trig

    Have i solved this correctly? x^2+3x-28=0 (x+7)(x-4)=0 x=-7 or 4

    asked by BelovedAngel
  68. Math

    f(x)=3x^2-x-2 If x=2, what is f(x)? What point is on the graph of f? For the first question, I got 8. But, I'm having trouble understanding the second question.

    asked by Anonymous
  69. Math

    An igloo approximates a hemisphere, with an entrance tunnel that approximates half a right cylinder. The base of the igloo has diameter 4.0 m. The entrance is 0.8 m long; it has an external radius of 0.8 m and an internal radius of 0.7 m. Calculate the

    asked by Anonymous
  70. Precalculus

    A cruise ship sets a course N50°E from an island to a port on the mainland, which is c = 170 miles away. After moving through strong currents, the ship is off course at a position P that is N36°E and a = 90 miles from the island, as illustrated in the

    asked by Anonymous
  71. Theories and issues in working with school-age chi

    Erik Erikson uses what mechanism to describe the stages in his psychosocial theory? A. Growth charts B. Problems C. Conflicts D. Levels

    asked by Amanda
  72. Pre-Calc/Trig

    How would I solve this one? I just can't get this one. 6x^2+11x-35=0

    asked by BelovedAngel
  73. math

    2. sylvia has 6 1/2 boxes of chocolate to share at a family picnic. if she gives each person 1/3 of a box, how many people can receive chocolate? 13 17 19 21 3.which of these numbers is not rational? square root 3 0.25 1/5 square root 9 4. a student's work

    asked by kthy
  74. math

    how would you convert the repating nonterminating decimal to a fraction? explain the process as you solve the problem/0.1515... remember to show all of the steps that you use to solve the problem how would you convince a fellow student that the number 0.57

    asked by kthy
  75. Math

    a) One mould forms a sculpture that is a composite object comprising a right cylinder with base diameter 15 in. and height 3 in., and a right cone with the same base diameter as the base of the cylinder and a height of 9 in. Determine the volume of the

    asked by Anonymous
  76. math

    i don't get how to do this problem mrs. sue please help how would you convert the repating nonterminating decimal to a fraction? explain the process as you solve the problem/0.1515... remember to show all of the steps that you use to solve the problem how

    asked by kathy
  77. math

    2. sylvia has 6 1/2 boxes of chocolate to share at a family picnic. if she gives each person 1/3 of a box, how many people can receive chocolate? 13 17 19 21 3.which of these numbers is not rational? square root 3 0.25 1/5 square root 9 4. a student's work

    asked by kathy
  78. Math

    How do you solve each of these equations for the indicated value? I'm so confused on how to do it 1. a-b=-c, for a 2. 4y+6x=12, for y 3. y=1/2x-10, for x

    asked by Anonymous
  79. trig

    simplify tan(-17 degree)+sin(24 degree)+cot(73 degrees)+cos(66 degrees in(-24 degree)

    asked by Reda
  80. Math

    Could you show me how to work through this problem? Show me steps Solve for s. Show all steps. –3s ≥ 18

    asked by mstv
  81. Finance for Mgrs

    a. Find the marginal tax rate for the following levels of corporate earnings before taxes: $11,000, $81,600, $304,000, $496,000, $1,300,000, $9/3 million, and $20.4 million b. B. Plot the average tax rates (measured on the y axis) against the pretax income

    asked by Shirley
  82. phy111

    14 Given that the mass and radius of Jupiter are respectively 1 90 1027kg and 7 15 104km, calculate the escape velocity from the surface of the planet

    asked by hart
  83. idk

    What are some similarities between humans and machines? @ms.sue

    asked by somebody help i am new
  84. phy111

    What is the orbital radius and speed of a synchronous satellite which orbits the earth once every 24h? Take G=6 67 10−11Nm2 kg2, Mass of the earth is 5 98 1024kg

    asked by hart
  85. phy111

    A ball of mass 50 g tied to the end of a 50 cm inextensible string is whirled around in a vertical circle. Find the tension in the string when the ball is at the top of the circle. Take g=10m s2

    asked by hart
  86. Calculus (math)

    A conical water tank with vertex down has a radius of 12 feet at the top and is 23 feet high. If water flows into the tank at a rate of 20 {\rm ft}^3{\rm /min}, how fast is the depth of the water increasing when the water is 12 feet deep?

    asked by mariel
  87. phy111

    An upward force of 1 2 104N acts on an elevator of mass 2 0 103kg. Calculate the acceleration of the elevator. Take g=9 8ms−2

    asked by hart
  88. phy111

    The resultant of vectors A and B has a magnitude of 20 units.A has a magnitude of 8 units, and the angle between A and B is 40o. Calculate the magnitude of B

    asked by hart
  89. chemistry

    If you wanted to produce 0.25 L of CO2 gas (at STP), how many grams of sodium bicarbonate would I need to use? Acetic acid is in excess. (IT IS ASSUMED YOUR ANSWER IS IN g NaHCO3 so you do not need to include that in your answer.)

    asked by Ali
  90. chemistry

    If I used 0.100L of 0.83 M HC2H3O2 (aq) (0.83 mol per 1 L of solution), how much carbon dioxide would be produced? (IT IS ASSUMED YOUR ANSWER IS IN L CO2 so you do not need to include that in your answer.)

    asked by Ali
  91. Chemistry

    If I used 24.6 g of of 0.83 M HC2H3O2 (aq) (0.83 mol per 1 L of solution), how much carbon dioxide would be produced? (IT IS ASSUMED YOUR ANSWER IS IN L CO2 so you do not need to include that in your answer.)

    asked by Ali
  92. 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 hi
  93. phy111

    A monkey in a perch 20 m high in a tree drops a coconut above the head of a zoo keeper as he runs with a speed 1.5 m/s beneath the tree actually intending to hit the toes of the zoo keeper, how early in seconds should the coconut be dropped by the monkey

    asked by hart
  94. physics

    the 5.0 kilogram block shown below is accelerated from rest across a wood floor (coefficient kinetic friction 0.22) by a 40 N pulling force for 3.0 seconds What us the blocks final velocity/speed? I am not sure what force i am supposed to calculate??

    asked by Sanda
  95. Math

    On a forward summer salt dive, a diver's height, h meters above the water can be modelled by the equation h(t)=-2.9(t-0.6)^2+4.8 where t is the time in seconds after the diver leaves the board A) determine the height above the water the diver is before he

    asked by Brody
  96. math

    2. sylvia has 6 1/2 boxes of chocolate to share at a family picnic. if she gives each person 1/3 of a box, how many people can receive chocolate? 13 17 19 21 3.which of these numbers is not rational? square root 3 0.25 1/5 square root 9 someone please help

    asked by kathy
  97. math/probability

    The probability of car accident is 1in 50 in a year,what is probability in a car accident over a 5year period

    asked by wa
  98. math/probability

    If u pick one card from each of 5different decks,what is the probability that you will pick at least one spade

    asked by wa
  99. Chemistry

    The volume of a gas is 17.7 mL at 41◦C and 0.819 atm. What will the volume be at 16◦C and 0.996 atm? Answer in units of mL

    asked by Lek
  100. Calculus/pre-trig

    Write the formula for the discriminant. State the types of roots for a quadratic equation, explaining how the discriminant helps you determine the type.

    asked by Anonymous
  101. phy111

    What is the orbital radius and speed of a synchronous satellite which orbits the earth once every 24h? Take G=6 67 10−11Nm2 kg2, Mass of the earth is 5 98 1024kg

    asked by hart
  102. Physics

    In a football game, a quarterback (G), hit simultaneously by two linebackers, experiences horizontal forces of 412 N [27.0° W of N] and 478 N [36.0° N of E]. Determine the net force of the quarterback.

    asked by Han
  103. Fundamental engineering principles

    A car traveling at 108 km hr-1 deceleration uniformly from 108 km hr-1 to 72 km hr-1whilst covering 200m.it continues at this reduced for 150m before slowing down uniformly to rest over a distance of 225m. Draw the velocity-time diagram and use it to

    asked by Anonymous
  104. Calculus

    400 feet of fencing is to be used to enclose four adjacent pieces of land. What dimensions will produce the largest area?

    asked by Rick
  105. math

    ms.sue help asap 1. which exponent makes the statement true? 1/5^9 =5^? 9 -9 1/9 -1/9 2. y^5*y^14 = 2y^19 y^60 y^19 2y^60 3. w^12/w^18 w^30 w^-30 w^6 w^-6 4. using the numbers 3,2, and 4 which of these problems would have a solution of 4? 4*2^3/2^3

    asked by kathy
  106. math

    can you help me graph the inequality f> equal to 4 on a number line ? ms.sue please help

    asked by kathy
  107. College Algebra

    Find an equation of the line that is tangent to the circle x^2 + y^2 = 25 at the point P(−3, −4).

    asked by Ashton
  108. College Algebra

    Suppose a major league baseball player has hit 7 home runs in the first 16 games, and he keeps up this pace throughout the 162-game season. (a) Express the number y of home runs in terms of the number x of games played. (b) How many home runs will the

    asked by Ashton
  109. Math

    Im still confused on how to solve these equations for the indicated value. 1. a-b=-c, for a 2. y=1/2x-10, for x

    asked by Anonymous
  110. math/limits

    lim (squar(14+y)-squar(14))/y y->0 Find limit if there is one.

    asked by Morgan
  111. math/limits

    lim {x-3}/(x^2-9) x->3 ( I used {} to show absolute value) Find the limit if there is one.

    asked by Morgan
  112. physics

    A motorcycle has a mass of 1000 kg. The motorcycle is slowed from 50 km/hr to a stop in 5s. What is the net force causing the deceleration?

    asked by sagrario
  113. Physics

    Three charges are placed at the vertices of an isosceles triangle as shown in the figure. If q = 5.00 μC, calculate the electric potential at the midpoint of the base of the triangle. Also calculate the electric field vector at the same point due to the 3

    asked by Bella
  114. science

    How many grams of CaO must be added to 50.0 mL of water to make the temperature increase from 25.0 ¡ÆC to 48.81 ¡ÆC? The reaction is CaO(s) + H2O(l) ¡ê Ca(OH)2(aq) -- ¥ÄH = -83.7 kJ Assume the heat capacity of the solution is the same as pure water

    asked by Any
  115. science

    what is the different between escape velocity & orbital velocity ???

    asked by Nazmul Hoque
  116. 8th grade; English

    Which of the following best explains the difference between informative and explanatory text? a. Informative provides readers a sense of why something happens, while explanatory tells the order in which something happened. b.Informative provides a reason

    asked by Amarachi
  117. chem

    Suppose an e- in an H atom has a transition from n = 3 to n = 2. a. Determine the energy of the released photon. i set it up like this Ei=-Rh/3^2 Ef=-Rh/2^2 (-Rh/9)-(-rh/4)=-4rh+9rh/36=/-rh+4rh/9/- this part why does it go to -rh+4rh? But then I got the

    asked by Feather
  118. Science HELP!

    The body's reaction to information is to send these to the brain. A. Neurons B. Impulses C. Dendrites D. Synapse Is the answer B? Thanks

    asked by Anonymous
  119. math

    8x-1=55

    asked by Anonymous
  120. Science HELP!

    The part of the brain that controls movement and balance is the A. Cerbrum B. Cerebellum C. Brain stem D. Frontal lobe Is the answer B? Thanks

    asked by Anonymous
  121. Chemistry

    How many grams of chlorine gas must react to give 4.82g of BiCl3? 2Bi(s)+3Cl2(g)→2BiCl3(s) My answer was wrong/please review and tell me where I went wrong. 4.82g BiCl3*1mol BiCl3/215.33g BiCl3*3 mol Cl2/2 mol Bicl3* 70.9g Cl2/1 mol Cl2=6.50 g Cl2

    asked by Loretta
  122. Science HELP!

    When diving into water, it is important to look before diving to avoid (blank)damage your nervous system. A. Deep water B. Underwater hazards C. living creatures D. Water toys Is the answer B? Thanks

    asked by Anonymous
  123. Math

    The data shows the total number of employee medical leave days taken for on-the-job accidents in the first six months of the year: 16, 7, 23, 9, 25, 16. Find the standard deviation.

    asked by Anonymous
  124. Physics , Pls help

    A space station consists of two donut-shaped living chambers, A and B, that have the radii shown in the figure. As the station rotates, an astronaut in chamber A is moved 2.06 x 102 m along a circular arc. How far along a circular arc is an astronaut in

    asked by S
  125. Economy, management, corporate governance

    1. Identify some of the major Institutional Investors that own portfolios in major corporations. What are their expectations? Are there any patterns to the ways in which these institutions invest? Explain and discuss. 2. Has any institution in which you

    asked by moni
  126. Criminal Justice/Report Writing

    When a number of different witnesses provide descriptions of the suspect, it is considered: A. acceptable for speed and brevity to combine multiple descriptions into a composite description. B. good investigative tactics to combine multiple descriptions

    asked by Pat
  127. Pre-calc

    If Theta= -7pi/6; then cos(Theta) is...

    asked by Jane
  128. Chemistry

    Which of the following reactions are spontaneous (favorable)? A. DHAP ---> glyceraldehyde - 3 - phosphate ΔG=3.8 kJ/mol B. C2H4+H2 ----> C2H6 ΔG=-150.97kJ/mol C. C4H4O5 ---> C4H2O4+H2O ΔG=3.1 kJ/mol D. L-malata + NAD + ---> oxalocacetate + NADH+H^+

    asked by whit
  129. second degree equation word problem

    A theater that is rectangular in shape seats 720 people.The number of rows needed to seat the people would be 4 less if each row held 6 more people.How many people would then be in each row?

    asked by rick
  130. Science

    I have a solid dissolved in water, both the same temp, and when it's put in the temperature drops. I have the heat capacity it of the solution, and need to the molar heat of the solution of the solid that was dissolved. Right now I've got: Mass of water x

    asked by Ned.
  131. Physical Education help

    The part of the brain that controls movement and balance is the A. Cerbrum B. Cerebellum C. Brain stem D. Frontal lobe Is the answer B? Thanks

    asked by Anonymous
  132. Chemistry-Help Dr. Bob

    How many mL of Carbon Dioxide gas at STP are produced from the decomposition of 4.50g of Ferric Carbonate? This is How I tried to solve it..... 4.50g Fe12(CO3)3* 1 molFe2(CO3)3/291.72g Fe2(CO3)3* 3 mol CO2/1 mol Fe2(CO3)3* 22.4L CO2/1mol CO2* 1000ml of

    asked by Loretta
  133. Physical Education help

    When diving into water, it is important to look before diving to avoid (blank) that could damage your nervous system. A. Deep water B. Underwater hazards C. Living creatures D. Water toys Is the answer B? Thanks

    asked by Anonymous
  134. Physical Education help

    The body's reaction to information is to send these to the brain. A. Neurons B. Impulses C. Dendrites D. Synapse Is the answer B? Thank you

    asked by Anonymous
  135. chEMISTRY

    Before investigating the scene, the technician must dilute the luminol solution to a concentration of 4.00×10−2M . The diluted solution is then placed in a spray bottle for application on the desired surfaces. How many moles of luminol are present in

    asked by LIO
  136. Math (sigma stuff!)

    Hi! Looking to find n∑k=1 8(k/n) (n is supposed to be on top, k=1 below the sigma sign)in closed form. I've tried doing 8*[(n(n+1)/2)/n], and that didn't seem to work. I'm not sure if I'm supposed to do anything with the n or if it might be an issue with

    asked by Mia
  137. Physics

    A cannon ball is fired horizontally with velocity of 15m from the top of a cliff 90m high.after how many seconds will it hit the foot of the cliff(a)time (b)at what distance from the foot of the cliff will it strike.

    asked by Anonymous
  138. Chemistry

    If 0.200mol of nitrogen gas and 0.200mol of oxygen gas react, what is the limiting reactant? N2(g)+O2(g)→2NO(g) How many moles of NO are produced according to the equation? Please show how to perform this equation with the answer please.

    asked by Tonya
  139. Power Transmission

    A 24.000 tooth gear turns at 120.000 rpm and drives a 60.000 tooth gear. Calculate the rpm of the second gear. Is it 48.000

    asked by Barry Morgan