Questions Asked on
June 15, 2011

  1. physics

    Two forces, of magnitudes F1= 80.0N and F2= 50.0N, act in opposite directions on a block, which sits atop a frictionless surface, as shown in the figure. Initially, the center of the block is at position x1= -3.00cm. At some later time, the block has moved

    asked by physics please show steps
  2. uniten

    3. At t = 0 , a particle leaves the origin with a velocity of 9.0 m/s in the positive y direction and moves in the xy plane with constant accelaration of ( 2.0i - 4.0j ) m/s2 . At the instant the x coordinate of the particle is 15 m , what is the speed of

    asked by ameer
  3. Algebra

    A can of soda is placed inside a cooler. As the soda cools, its temperature T(x) in degrees Celsius is given by the following exponential function, where is the number of minutes since the can was placed in the cooler. T(x)=-22+44e^-0.03x Find the initial

    asked by Jessica
  4. psychology

    My instructor assign me of one the "senses." This the one my instructor had assign to me= “The Skin Senses”: Which includes Touch, Pressure, Temperature, and Pain. The instruction is to (Briefly describe how The Skin Senses work and its importance.

    asked by Sharon
  5. Chemistry

    In 6.20 h a 100 g sample of ag 112 decays to 25 grams. what is the half life of ag 112. I think the answer is 3.10 but I'm not sure. Thanks in advance =)

    asked by Jackie
  6. Physics

    The speed of a point on a rotating turntable, which is 0.172 m from the center, changes at a constant rate from rest to 0.531 m/s in 2.19 s. At t1 = 1.9 s, find the magnitude of the tangential acceleration. Answer in units of m/s2.

    asked by JRD
  7. Physics

    A 3.00-liter aluminum cylinder at 5.00°C is filled to the brim with gasoline at the same temperature. If the aluminum and gasoline are warmed to 52.0°C, how much gasoline spills out? [Hint: Be sure to account for the expansion of the container. Also,

    asked by Justin
  8. HR-Management

    Debbie, an administrative assistant, likes to stay at her desk until seven or so each workday evening, writing letters on her PC to her best friend. This is especially true when her boss also works late. What is this an example of? A) Impression management

    asked by POORMAN
  9. Human Resources Management

    . An assessment technique that is graphic in nature and that uses examples of behavior representing particular levels of performance to anchor the scale is called a A) critical-incident technique. B) behavioral observation scale (BOS). C) weighted

    asked by POORMAN
  10. Biology

    Biology question about molecules? I need to arrange the following in terms of smallest to largest representative size... triglyceride, disaccharide, carbon atom, protein, carboxylic acid please help! thank you!!

    asked by Curlyqty
  11. Math

    A rectangular garden is to be fenced off and divided into 3 equal regions by fencing parallel to one side of the garden. 200 feet of fencing is used. find the dimensions of the garden that maximizes the total area enclosed. what is the maximum area?

    asked by Usman
  12. Geometry

    The area of a square is 121 sq feet. What is the length of its sides? Would I find this by dividing 121 by 4?

    asked by Phillip
  13. math

    If the store purchases an item at a wholesale cost of $3.50 per item, and it is sold at a retail value of $5.00 per item. What is the gross profit percentage of the item? (formula: gross profit percentage = [(retail - cost) divided by retail] X 100 )

    asked by jimmy
  14. maths

    in a class 1/3 of students play cricket 1/8 play volleyball, 1/6 play tennis and the rest don't play any games. what fraction of the students doesn't play any games?

    asked by mukesh
  15. grammar

    4.The patient is a 42-year-old male with a history of left shoulder osteomyelitis with resistant pseudomonas from an injury he sustained approximately 20 years ago. pls help me with all the prepositions & conjuctions in the above sentence.

    asked by nicole
  16. grammar

    3.She is tender to percussion and palpation over the right lower quadrant. over is the preposition, is to also a preposition in this sentence

    asked by melody
  17. grammar

    2. The patient was brought to the operating room, general endotracheal anesthesia was induced by the anesthesia service. which of the following is true for the above sentence a. This is a comma splice that can be fixed by removing the comma. b. This is a

    asked by Deeksha
  18. Human Resource Management

    Attempting to provide raters with a set of consistent norms of good and poor performance for evaluating employees is an example of A) observation training. B) rater error training. C) frame of reference training. D) halo error.

    asked by POORMAN
  19. Physics

    A proton is at the origin and an electron is at the point x = 0.36nm , y= 0.30nm .

    asked by DavidJ
  20. physical science

    What are the distance and displacement of a race car that completes the Indy 500

    asked by rosie
  21. Psychology

    In a classroom experiment, students were asked to place one paper clip in each hand. They were then instructed to add paper clips to the left hand until they were certain that the clips in the left hand weighed more than the paper clips in the right hand.

    asked by MaS
  22. Calculus : Derivative

    If xy log(x+y) = 1, prove that dy/dx = -y(x^2y +x+ y)/x(xy^2 + x + y)

    asked by Akash
  23. physics

    How strong an electric field is needed to accelerate electrons in a TV tube from rest to one-tenth the speed of light in a distance of 4.9 cm ?

    asked by Debra
  24. PSY/300

    What is casual observation and why is it different from scientific disipline?

    asked by logan
  25. grammar

    2.He suffered an injury to his knee, and this is causing him pain and discomfort. suffered an injury ,is causing are verbs ,am i correct or pls correct me

    asked by nicole
  26. geometry

    Find side c if side a = 10 inches and side b = 6 inches.

    asked by robert
  27. Chemistry

    A sample of glucose, C6H12O6, contains 1.300x10exponent21 atoms of carbon. How many atoms of Hydrogen does it contain? How many molecules of glucose does it contain?

    asked by Ray
  28. Physics

    A golf ball is given an initial speed of 20 m/s and returns to ground level. Which launch angle above level ground results in the ball traveling the greatest horizontal distance? Neglect friction. 1. 60 degrees 2. 45 3. 30 4. 15 The answer is 45 but I was

    asked by Julie
  29. Economics

    A large firm has two divisions: an upstream division that is a monopoly supplier of an input whose only market is the downstream division that produces the final output. To produce one unit the final output, the downstream division requires one unit of the

    asked by Kathy
  30. meteorolgy

    On a clear and calm day, the air temperature at sunrise is 0 °C (32 °F) with a relative humidity of 85%. The air temperature reaches a maximum of 10 °C (50 °F) at 3 p.m. Assuming that no water vapor is added to or removed from the air, predict the

    asked by Anonymous
  31. Chemistry

    The oxidation of sulfur dioxide to sulfur trioxide is an important reaction. At 1000K, the value of Kc is 3.6 x 10^-3. What is [SO3] at equilibrium when the reaction vessel is maintained at 1000K.

    asked by Jenny
  32. mba stats class, help!!

    A salesperson goes door-to-door in a residential area to demonstrate the use of a new Household appliance to potential customers. She has found from her years of experience that after demonstration, the probability of purchase (long run average) is 0.30.

    asked by jenny
  33. meteorolgy

    Saturated (cloudy) air at a temperature of 20 °C (68 °F) has a vapor pressure of __________ mb and a relative humidity of _________%.

    asked by Anonymous
  34. grammar

    5.The external oblique fascia was then incised, and the incision was lengthened in the direction of the fibers. pls let me know all verbs in this sentence.

    asked by mike
  35. chemistry

    Every measurement has a measurement uncertainty. Discuss how precise and accurate measurement can be achieved in spite of the inherent measurement uncertainty. You could use either of the two options given below. • Take a ruler and measure the height of

    asked by mema
  36. grammar

    Although the abscess was incised and drained in the emergency room and cultures were obtained, which grew coag-positive staphylococcus.

    asked by martha
  37. statistics

    IQ is normally distributed with a mean of 100 and a standard deviation of 15. Suppose one individual is randomly chosen. Let X = IQ of an individual. The middle 30% of IQs fall between what two values?

    asked by Kelly
  38. math

    Two circles with radii 3cm and r cm touch each other externally. If their common tangent is 8cm long,what is the value of r?

    asked by Daniel
  39. Physics

    A typical lightning flash delivers about 27C of negative charge from cloud to ground. How many electrons are involved?

    asked by D'Andre
  40. grammar

    Although the abscess was incised and drained in the emergency room and cultures were obtained, which grew coag-positive staphylococcus. which of the below holds good for the above sentence. 1.This is a run-on that needs a semicolon after time. 2. This is a

    asked by Jennifer
  41. MATH

    WRITE A SIMPLE BUT A COMPLETE FORTRAN PROGRAM TO CALCULATE THE AREA OF A TRIANGLE

    asked by EDWIN
  42. Biology

    Carbon is a an element with an atomic number of 6. Based on this information, which of the following statements is true? A. Carbon can be broken down into simpler component substances. B. Each carbon atom will always have 6 protons. C. Each carbon atom

    asked by Sherri
  43. MATH

    FIND THE MEASURES OF ANGLE 1 AND ANGLE 2 IF MEASURE ANGLE 1=3X-12 MEASURE ANGLE 2=7X+2 AND ANGLE 1 AND ANGLE 2 FORM A LINEAR PAIR

    asked by jojo garma
  44. Chemistry

    How many grams are in 8.2x10 to the power of 22 molecules of Fe2O3?

    asked by Melanie
  45. Chemistry

    The equation of the line for a graph of voltage versus log[Cu2+] was y= - 0.0179x - 0.0015. The voltage of a solution with an unknown [Cu2+] was measured against the same reference cell, under the same conditions; the voltage was found to be 0.012 V.

    asked by Max
  46. MATH

    WRITE A SIMPLE BUT A COMPLETE FORTRAN PROGRAM TO COMPUTE THE AVERAGE OF SIX NUMBERS AND DISPLAY THE NUMBERS, SUM AND AVVERAGE. THE PROGRAM SHOULD TERMINATE WHEN ZERO IS ENTERED AS A NUMBER. THE PROGRAM SHOULD BE EDUCATIVE

    asked by EDWIN
  47. grammar

    Seeing pulsation of the artery at the completion of this dissection. which of the following is right for the above sentence. 1.This is a run-on that can be fixed with a period. 2. This is a run-on that can be fixed by adding a comma and a conjunction. 3.

    asked by Troy LaBruce
  48. Marketing

    List the types of potential segmenting dimensions, and explain which you would try to apply first, second, and third in a particular situation. If the nature of the situation would affect your answer, explain how.

    asked by Destiny
  49. Chemistry

    convert 39C fever to fahrenheit

    asked by mema
  50. english

    One of the four underlined sections may mark an error in punctuation. Choose the option that marks the error in punctuation. If there is no error, choose No error. For most of us who are not reading specialists, learning to read is a mysterious process;

    asked by natasha
  51. Derivative

    25) Suppose F(x) = g(2x^2 + 2). Find F(1) if g'(4) = -3. This is the question on my take home test. Seems to me that the question is wrong. Should it be f'(1) if g'(4) = -3? Your thoughts?

    asked by Steff
  52. Calculus (demand)

    18) The demand equation is x + 1/6p - 10+0. Compute the elasticity of demand and determine whether the demand is elastic, unitary, or inelastic at p=50. a) 5; elastic b) 1/9; inelastic c) 7/6; elastic d) 6; elastic I choose answer A. Is that correct?

    asked by Steff
  53. economics

    Assume that it takes four hours of labor time to paint a room and three hours to sand a floor. If all 24 hours were spent painting, how many rooms could be painted by one person? If a decision were made to sand two floors, how many painted rooms would have

    asked by MATTHEW
  54. Chemistry

    I blanked how to solve this: How many grams of carbon dioxide are produced when 2.5 grams of sodium bicarbonate reacts with excess citric acid according to: 3NaHCO3+H3C6H5O7 -> Na3C6H5O7+3CO2+3H2O Could you include the steps, please? Thanks.

    asked by Jillian
  55. trignometry

    Prove That 2sin^pi/6 + cosec^7pi/6cos^pi/3 = 3/2

    asked by Anonymous
  56. math

    Assuming that the air temperature drops 6.5 Celsius degrees per 1000 m, compute the temperature at the tropopause if the sea-level air temperature is 15 °C and the altitude of the tropopause is 11 km. Answer: _____ °C (Round to the nearest tenth, do not

    asked by Anonymous
  57. meteorolgy

    Outdoors, the air temperature is 5 °C (44 °F) and the relative humidity is 45%. What is the relative humidity of the air if it is drawn indoors and heated to 20 °C (68 °F)? Assume that no water vapor is added to or removed from the air. Answer:

    asked by Anonymous
  58. Physics

    The electric field at the surface of a uniformly charged sphere of radius 6.0cm is 90 kN/c .

    asked by Debra
  59. medicine

    can some one tell me from where can i download free medical ebooks for biochemistry,physiollogy and embryology???

    asked by aden
  60. Geometry

    Given ABCD AC=28 and AE=3x-7 find the value of x

    asked by Alex
  61. geometry

    a cube shaped box is 6 inches wide and the rectangular box is 10 inches long, 4 inches wide, and 4 inches high. how much greater is the volume of the cube shaped box than the rectanglar box?

    asked by danna
  62. math

    The average air pressure at sea-level will support the column of mercury in a mercury barometer to a height of 760 mm (29.92 in.). If water were used in place of mercury in the barometer, what would be the height of the water column at average sea-level

    asked by Anonymous
  63. chemistry

    If 1/2 moles of 02 react with 24 moles of hydrogen, can 2 moles of water be produced?

    asked by Zach
  64. Geometry

    I have a picture of a window showing a square in the center with sides measuring 4 feet, over each side of the square is a semi-circle(a total of 4 semi-circles), how can I find the area of the window? Should I find the area of the square and the

    asked by Phillip
  65. statistics

    2. A teacher wants to investigate whether there is a difference between male and female students in the amount of time they spend studying for statistics. The table below shows the amount of time students spend studying statistics each week. The amounts of

    asked by Carl
  66. Financial Accounting

    Incentive Corporation was organized in 2009 to operate a financial consulting business. The charter authorized the following capital stock: common stock, par value $4 per share. 12,000 shares. During the first year, the following selected transactions were

    asked by gdlola
  67. geometry

    Given U = {15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25}, A = {16, 18, 20, 22}, and B = {17, 19, 20, 23, 24}. Show your work, finding A’, then B’ then find their intersection.

    asked by nitta
  68. physics

    A car moves with an initial velocity of 25ms-1 and reaches a velocity of 45-1 in 10s. What is the acceleration of the car?

    asked by Joseph
  69. chemistry

    Explain why the yield of ester is relatively low? How to improve the yield and the purity of ester?

    asked by Make
  70. math

    the difference of two numbers is 5. their product is 176. what are the numbers ? i've been trying to figure this out for a while and can't come out with the right answer.

    asked by jaclyn
  71. grammar

    Hey!Pls help me i am stuck with the sentence below. Seeing pulsation of the artery at the completion of this dissection. 1.This is a run-on that can be fixed with a period. 2.This is a run-on that can be fixed by adding a comma and a conjunction. 3.This is

    asked by Troy LaBruce
  72. statistics

    2. A teacher wants to investigate whether there is a difference between male and female students in the amount of time they spend studying for statistics. The table below shows the amount of time students spend studying statistics each week. The amounts of

    asked by Carl
  73. statistics

    3. A researcher is interested in whether listening to music helps or hinders test-performance. To control for differences in cognitive level, this researcher decides to use a within-participants design. He selects a random sample of participants and has

    asked by Carl
  74. HR -Management

    Feedback is most effective in improving performance when it A) is specific. B) is accepted by the employee. C) defines clear goals for future performance. D) All of these.

    asked by POORMAN
  75. math

    marla earned $400.00 interest over 2 years on a $4000.00 investment. jovita earned $960.00 interest over 4 yars on her $ 6000.00 investment. Who had the higher rate of interest?

    asked by don
  76. Precalculus

    The letters r and è represent polar coordinates. Write the equation using rectangular coordinates (x,y). r=1+2sinè I know that I have to use something along the lines of x=rcosè and y=rsinè, but I'm stuck when I try to figure it out. Can someone help?

    asked by Alex
  77. Statistics

    A group of scientists created 150 trials to measure whether electric shock treatment could cure paranoid delusions. Of these trials, 52 were successful. Find the margin of error E that corresponds to a 95% confidence level. The critical value for 95%

    asked by Thomas
  78. geometry

    how much water can be held by a cylindrical tank with a radius of 12 feet and a height of 30 feet? is it 33912 cubic feet? or perhaps 2260.8 cubic feet?

    asked by danna
  79. Chemistry

    Give the following reaction,find the mass of oxygen required to produce 13grams of CO2; C3H8+5O2--->3CO2 + 4H2O

    asked by Charlie
  80. meteorolgy

    Compute the relative humidity (RH) to nearest percent for each of the following atmospheric conditions: (Round to one decimal place, do not include units.) a. mixing ratio = 2.3 g/kg, temperature = 10 °C (50 °F), RH = _________ %

    asked by Anonymous
  81. meteorolgy

    Compute the relative humidity (RH) to nearest percent for each of the following atmospheric conditions: (Round to one decimal place, do not include units.) b. vapor pressure = 4 mb, saturation vapor pressure = 16 mb, RH = _________%

    asked by Anonymous
  82. nba stats help!!

    The weight of a product is normally distributed with a standard deviation of .8 ounces. What should the average weight be if the production manager wants no more than 1% of the products to weigh more than 7.3 ounces?

    asked by jenny
  83. english

    hay i really really need help!!! im doing a poem project and it invloves explainig what does "no time to turn at beautys glance and watch her feet and how they can dance"means pleasee help me i really need help:)

    asked by priya
  84. MATH

    FORTRAN ROGRAM THAT CAN ACCEPT TWO INTEGER NUMBERS AND COMPUTE AND DISPLAY ALL THEIR COMMON PRIME FACTORS

    asked by EDWIN
  85. physics

    A block of wood is placed in a cup of water. The block has the following dimensions: L=10cm W=5cm H=4cm. If the block is 75% submerged, how much water has been displaced?

    asked by Noelle
  86. accounting

    Enter transactions: 1. owner contributes $6,00 cash 2. $2,000 in revenue on account 3. $1,500 cash from debtors 4. Rent expense cash $400 5. $300 in cash for salaries invested $2,500 in a certificate of deposit(terms - 12 months, rate of interest - 8%)

    asked by kay
  87. Business

    Describe the main roles and behaviors of the entrepreneurs, managers, and employees your company might have.

    asked by Kim
  88. meteorolgy

    If the relative humidity is 66% and the vapor pressure is 16 mb, what is the vapor pressure at saturation? Answer: _________ mb (Round to one decimal place, do not include units.)

    asked by Anonymous
  89. calculus

    18) The demand equation is x + 1/6p - 10+0. Compute the elasticity of demand and determine whether the demand is elastic, unitary, or inelastic at p=50. a) 5; elastic b) 1/9; inelastic c) 7/6; elastic d) 6; elastic I choose answer A. Is that correct?

    asked by Ben
  90. chemistry

    An unidentified compound (A) was reacted with bleach using the same experimental protocol as that performed in the lab. Molecule B was formed. Answering the questions below should allow you to interpret the following information in order to determine the

    asked by Anonymous
  91. sociology

    How might the label of deviance act as a self-fulfilling prophecy? I don't understand this question...what do they mean by self-fulfilling prophecy?

    asked by Diana
  92. derivative calculus

    Please help. f(t)=(4+√t)(4t^2-5) This is what I have so far... (4+√t)(8t)+(4t^2-5) (1/2t^-1/2) Am struggling to get this in factored form. Am working on a multiple choice take home test and nothing I am getting matches.

    asked by Steff
  93. Statistics

    : For each of the following samples that were given an experimental treatment, test whether these samples represent populations that are different from the general population: (a) a sample of 10 with a mean of 44, (b) a sample of 1 with a mean of 48. The

    asked by Stephanie
  94. statistics

    1. An LU professor is interested in whether there is a difference between undergraduate students and graduate students in the amount of time spent praying each day. The professor gathers information from random samples of undergraduate and graduate

    asked by Carl
  95. british lit

    what does the Redcrosse Knight represent in The Faerie Queene?

    asked by greg
  96. derivative

    Find the derivative. 11) f(t)=(1)/(sqrt(8t-3)) 12) g(t)= ((4t-3)^2)/ ((5t+1)^4) Thanks.

    asked by Ben
  97. grammar

    A Superblade was used at the 2 o'clock position, and the anterior chamber was entered was used is a verb ,was entered is also a verb ,am i right

    asked by kristin
  98. chemistry

    How would you prepare 1 L of a 1.15 M aqueous solution of MgCl2? What grams of MgCl2 would be used?

    asked by Anonymous
  99. Algebra

    find the vertex, line of symmetry, and minimum or maxium values of the quadratic equation f(x)=9-x^2

    asked by Jess
  100. calculus

    Just want to check and see if I am setting this up right. Let y=f(x)=x^2-6x Find the average rate of change of y with respect to x in the interval from x=4 to x=5 (5^2-6*5)- (4^2-6*4)/ 5-4

    asked by Steff
  101. chemistry

    How can I solve the following ecercise: Use perturbation theory to calculate the energy levels of a particle in a box with a cosine function botto. Let the box extend from x=a to x=a and let the perturbing potential be H' = V0[1+cos(2*Pi*m*x/a)]. This

    asked by Juan Manuek
  102. Algebra

    If the cost of a cell phone has decreased 400% during the past 10 years, does that correspond to a cost decrease of four times? Explain your answer as though you were talking to someone who has never taken algebra.

    asked by Brenda
  103. math

    -2/5t+=-8/3

    asked by elquan
  104. chemistry

    Determine the Molarity of a 125 mL NaOH solution if upon titration with 5.5 mL of an 2.5 M HCl solution, the end point of the titration was reached

    asked by liz
  105. math

    The length of a rectangle is 2 meters more than its width. If the area is 35 square meters, what are the length and width? (Points : 4)

    asked by saadebay
  106. accounting

    I need help with the layout on how to prepare a bank reconciliation and record adjustments. As of July 31 Company is Clark Company.

    asked by shawna
  107. math

    geometry answers "You have a rectangular sheet of paper with dimensions 8.5 inches by 14 inches. if you use 3 inches as the value of x, What are the dimensions? and its volume?

    asked by michelle
  108. business commnication

    Which of the following sentences advocates an idea in a positive way? (Points: 5) "I can't see anyone buying the product at that price." "The unit is way overpriced." "Customers can get a better deal anywhere else." "We can corner the market if we discount

    asked by Anonymous
  109. mba stats class, help!!

    a door to door sales person for a household appliance has learned from her past experience that out of 10 demonstrations of her appliaance only 4 result in actual sales. This week she needs to make at least 5 sales. At least how many demonstrations does

    asked by jenny
  110. social studies

    how to create a map and diorama 3-d model in a large pizza box ? steps to follow- show and label the landforms on both the map and diorama can be made using clay , paper , salt or any other material .

    asked by bhanu
  111. algebra

    write the absolute value for each of the following. A.|-7| B.|+3| C.|0| D.|-6|

    asked by lawrence
  112. Science

    Are sparklers legal in New York?

    asked by Alea
  113. English

    (please help) I need help with my English assignment ASAP. I need to know the meaning of Impetus? These are the exact words. Brief summary of the impetus behind your scenario. Be clear to show a clear link to the chosen topic. I do not understand the

    asked by Victorine
  114. math

    40 children in the class 3 out of every 4 wears jeans how many students in the class are wearing jeans?

    asked by Marina
  115. Calculus derivative

    Find the slope and an equation of the tangent line to the graph of the function f at the specified point. f(x)=-1/3x^2+5x+5: (-1, -1/3) Answer: f’(x)=-2/3x + 5 y=-2/3x -1 I re-worked the problem and got f'(x)=5, y=5x+ 14/3 This is from a multiple choice

    asked by Steff
  116. math

    A 9ft. Ladder is leaning against a wall and make a 50 degree angle with the ground. How far is the ladder from the base of the wall.

    asked by david
  117. American Govt

    Why do you think free enterprise and capitalism usually develop as economic systems under democracy?

    asked by Anonymous
  118. Physics

    The gauge pressure at the bottom of a vertical tube (open to the atmosphere) filled with mecury is 100kPa. How high is the column of mecury in the tube? I used the formula pressure=density * gravity * height which i reaaranged to find h=

    asked by Katie
  119. Waves

    a long fishing rod is kept upright .A boat engine causes the rod to vibrate.Mary speculates that the end of the rod moves to and fro 20 times in 1 minute.The amplitude of the vibrtion is 0.15m.Calculate the speed of the vibration at the end of the fishing

    asked by Sivashen
  120. chemistry

    A robust first grader goes for swimming lessons three times a week, and he enjoys it thoroughly. During the first week of December, he develops an upper respiratory infection, starts coughing continuously, and has a high fever of 39°C. His condition

    asked by mema
  121. American Government

    What is the difference between "welfare" programs and "social welfare" programs?

    asked by Britney
  122. math

    Caleb took a two and one-half hour nap after soccer practice on Saturday afternoon. His younger brother slept one and three-fifths times as long as Caleb. How many hours did his brother sleep?

    asked by David
  123. social studies

    Given a Helium-Neon laser-based fiber optic Doppler probe at an angle of 60¡C with a blood vessel that registers a frequency shift of 63KHz, what is the velocity of the blood? Is this a reasonable number from a physiologic point of view when compared to

    asked by CS
  124. science

    Is an icing propane regulator concidered an endothermic reaction?

    asked by john
  125. meteorolgy

    Compute the relative humidity (RH) to nearest percent for each of the following atmospheric conditions: (Round to one decimal place, do not include units.) c. mixing ratio = 1.5 g/kg, saturation mixing ratio = 9 g/kg, RH = __________%

    asked by Anonymous
  126. meteorolgy

    If the relative humidity is 66% and the vapor pressure is 16 mb, what is the approximate air temperature? Answer: _________ °C. (Round to one decimal place, do not include units.)

    asked by Anonymous
  127. physics

    Draw a velocity time graph for a ball which is throw vertically upwards from the ground and then it comes back to the ground

    asked by Anonymous
  128. Calculus : Derivative

    If tan^-1(x^2-y^2/x^2+y^2) = a, prove that dy/dx = x(1 - tan a)/y(1 + tan a) Please solve!!!

    asked by Akash
  129. geometry

    A triangle has a ratio of 3:8:9 what is the measure of the smallest angle

    asked by Rebekah
  130. chemistry

    what is the volume of 4.4 moles of Cl2 at 285 kelvin and 0.87 atm. (R=0.0821 k*atm/mol*k)

    asked by Tom
  131. Chemistry

    I don't know why on earth I don't remember how to do this, but I can't, and it's so simple. Calculate [H+] and [OH-] of a solution with a pH of 9.7 Thank you.

    asked by Anonymous
  132. Science 7

    What is Ohm's Law? The exact definition please! This is for 7th grade science.

    asked by Susy B.
  133. Programming

    How do you obtain a tcsh shell login on mac?

    asked by Shadowkiss
  134. Algebra

    In a paragraph, describe how to simplify this expression ã100

    asked by Julie
  135. scientist

    What is the effect of the temperature. Outside on attendance at westside

    asked by Anonymous
  136. Science

    Of the three local winds, which do you think could be easily harnessed for the generation of electricity by a huge wind farm and why? Land and Sea Breezes,Mountain and Valley Breezes or Chinook and Santa Ana Winds.

    asked by Niki
  137. College Physics

    What is the momentum of an automobile (weight = 9700 N) when it is moving at 36 m/s to the south?

    asked by kaleigh
  138. english

    If you could create a time capsule. what valuable things or memories would you put in it? Note you won't open it for 10 years

    asked by Kayla
  139. alg II

    How do you solve this equation? 2cos(pi*x) = 4x = 5

    asked by jane
  140. Quantum physics

    How can I solve the following ecercise: Use perturbation theory to calculate the energy levels of a particle in a box with a cosine function botto. Let the box extend from x=a to x=a and let the perturbing potential be H' = V0[1+cos(2*Pi*m*x/a)]. This

    asked by Juan Manuek
  141. world history

    please help me, everyone!(: 1.what 3 types of land are best suited for agriculture a. tundra, alluvial plains, and lowlands b. swamplands, alluvial plains, and uplands c. swamplands, forests, and steppes d. alluvial plains,prairies,and uplands next- 2.e

    asked by danna
  142. Math

    Prove that if p is prime and 1

    asked by Sean
  143. fp/101

    Which of the following would not be used to create a personal balance sheet? A. Slide presentation software B. Personal financial management software C. Pencil, paper, and calculator D. Spreadsheet software

    asked by Anonymous
  144. social studies

    For liver tissue irradiated by the pulsed Ho:YAG laser, determine the exposure duration which the equation for heat conduction may be ignored. Assume the absorption coefficient at the Ho:YAG laser wavelength is 30cm-1 and assume the thermal diffusivity of

    asked by CS
  145. chemistry

    1.calculate d nos of molecules and atoms in following cases: (a).0.25 moles of water' b.32 gramms of SO2?c) 0.45 litres of hydrogen measured to 25·c and 0.9 atm.

    asked by tilo
  146. English

    1. The solar cell could change sunlight directly into electricity. 2. The solar cell could directly change sunlight into electricity. (Are both acceptable? What is the suitable position of 'directly'? Which one is right?)

    asked by rfvv
  147. english

    The colorful paper decorations were ruined by the sudden storm? what are all the adjectives

    asked by Paula
  148. Algebra

    What are some rational equation applications used in forensics or crime scene investigation?

    asked by Stephanie
  149. Math- statistics

    If 47% of the population wears sunglasses and use sunscreen in the sun, and 18% wear sunscreen, and 47% wear neither, what percent wear sunscreen?

    asked by zeek
  150. English

    How is the more direct performative aspect of drama and/or poetry reflected in these forms? structure, language, technique, and style

    asked by John
  151. English

    Can you help me summarize the major similarities and differences between the forms of the drama " Riders to The Sea",The poem " We Real Cool",and the short story "The Secret Life of Walter Mitty" and help me with at least one textual example of each

    asked by John
  152. MATH

    What is the 9th term -1/18 1/6 -1/2

    asked by M
  153. History URGENT reflecting

    Hi What is a general way to reflect on an cartoon? I have some rough ideas like talking about perspective of the artist and the portrayal but I'm not sure if i'm missing something. Thanks!

    asked by Em
  154. science

    if a drug has a half life, after half of the drug leaves does it continue acting on the body

    asked by Anonymous
  155. Calculus

    Find the derivative. 11) f(t)=(1)/(sqrt(8t-3)) 12) g(t)= ((4t-3)^2)/ ((5t+1)^4) Thanks.

    asked by Robson
  156. science

    if the concentration of lead in water is 15ppm how much water contains 15 grams of lead?

    asked by Anonymous
  157. Calculus : Derivative

    If y = x sin(a+y), prove that dy/dx = sin^2(a+y)/sin(a+y)-ycos(a+y) Please solve it

    asked by Akash
  158. psychology

    why do people help?

    asked by Anonymous
  159. sociology

    How does racism and class system work together

    asked by Anonymous
  160. english

    Explain the quote, "In order to survive fact must become fiction."

    asked by jill
  161. MATH

    what is the range of f(x)= 3sin(bx+d)

    asked by zack
  162. grammar

    5.After lengthy discussion, it was decided the patient would continue to be treated in the hospital. Is there any conjuction in this sentence.

    asked by martha
  163. social studies

    Almost done ..What are two of the qualities that made Stonewall Jackson an outstanding battlefield Commander ? The only thing I found on this was, he inspired incredible loyality in his men and was a brillant stratigist ?? Is this correct ?

    asked by Joanne
  164. MATH

    Convert 322 degrees to radians

    asked by M
  165. MATH

    (1/6)to the power of 3x = 36 to the power of 2-x

    asked by M
  166. Commerce

    Why is employment based on contract law?

    asked by Jason
  167. health

    who are resonsible if the doctors office suffers a power outage. the doctor, or the agency managing the computerized data for the doctor????

    asked by sophie
  168. world history

    please, please, please help me with my question! 1. el nino affects the andean region by A.causing seasonal rains to come at the wrongtime b.decreasing the temperture c.causing drought d.causing torrential rains

    asked by danna
  169. PSY/300

    what is causal observation ?

    asked by logan