Questions Asked on
April 26, 2013

  1. Lincoln College Of New En

    it has been found that 85.6% of all enrolled college and university students in the U.S. are undergraduates. A random sample of 500 enrolled college students in a particular state revealed that 420 of them were undergraduates. Is there sufficient evidence

    asked by Paula
  2. History

    1. A decline in the number of U.S. manufacturing jobs was in part the result of *globalization. biotechnology. entrepreneurs. superstations. 2. The first modern computer was designed to benefit universities. the economy. *the military. corporations. 3.

    asked by james
  3. precalculus

    The four sequential sides of a quadrilateral have lengths a=3.6, b=5.3, c=8.4, and d=10.2 (all measured in yards). The angle between the two smallest sides is alpha = 117°. What is the area of this figure?

    asked by marie darling
  4. Chemistry

    How much ice (in grams) would have to melt to lower the temperature of 53.4g of water from 65 C to 0C? I know there are more than one step here, I would appreciate an answer that does not do the work for me, but show me how to lay out the problems and in

    asked by Kim
  5. English

    1. All of the following are helpful techniques in effective speech delivery EXCEPT: A. pauses. B. voice inflection. C. filler words. D. projection. is it C 2. Hand gestures help emphasize a point except when they are: A. appropriate. B. natural. C.

    asked by Amy
  6. CHEMISTRY

    Do you think it is more useful to have the percent by mass of water in hydrate or the percentage composition, assuming that you know the formula for the associated dehydrated compound? Can someone please explain what's the meaning of this question, I'm

    asked by cazzy
  7. physics

    what pressure (in atm) would be exerted by 76g of fluorine gas in a 1.5 litre vessel at -37 degrees Celsius?

    asked by jane
  8. Lincoln College Of New En

    the Old Farmer’s Almanac stated that the average consumption of water per person per day was 123 gallons. To test the hypothesis that this figure may no longer be true, a researcher randomly selected 16 people and found that they used on average 119

    asked by Paula
  9. English

    To avoid speaking in monotone, a strategy to use can include: A. changing pitch and tone of voice. B. voice inflection. C. varying rate and pace of speaking. D. All of the above i'm confused betwen A & D 2. Which nonverbal consideration creates immediate

    asked by Amy
  10. Physics

    A spring oriented vertically is attached to a hard horizontal surface as in the figure below. The spring has a force constant of 1.64 kN/m. How much is the spring compressed when a object of mass m = 2.35 kg is placed on top of the spring and the system is

    asked by Abdul
  11. English

    1. Verbal communication refers mainly to: A. vocal quality. B. pitch. C. use of words. D. tone. is it C 2. Nonverbal communication includes: A. posture. B. clapping. C. eye contact. D. All of the above. is it D 3. Vocal quality may refer to voices that may

    asked by Amy
  12. Lincoln College Of New En

    the average 1-ounce chocolate chip cookie contains 110 calories. A random sample of 15 different brands of 1-ounce chocolate chip cookies results in the following calorie amounts, at the a = 0.01 level, is there sufficient evidence that the average

    asked by Paula
  13. economics

    hi new to economics, and struggling with some of its concepts. got this posed as a homework question, and i have to admit stumped as how to begin. Suppose a firm finds that the marginal product of capital is 60 and the marginal product of labor is 20. If

    asked by john
  14. chemistry

    Acetaldehyde, CH3CHO, will decompose into methane and carbon monoxide according to CH3CHO (g) -> CH4 (g) + CO (g) At 450C the rate of consumption of CH3CHO is measured to vary with the concetration of CH3CHO raised to the power 1.5. With a CH3CHO

    asked by Anonymous
  15. physics

    A large storage tank, open to the atmosphere at the top and filled with water, develops a small hole in its side at a point 18 m below the water level. The rate of flow of water from the leak is 1.6 × 10−3 m3 /min. Determine the speed at which the

    asked by Anonymous
  16. physics for physical science

    a bullet of mass 0.015kg strikes ballistic pendulum of mass 2.0kg .the center of mass of the pendulum rises a vertical distance of 0.12m.assuming that the bullet remains embedded in the pendulum, calculate the bullet's initial speed.

    asked by lonia
  17. Psychology Statistics

    2 For a sample of n = 20 individuals, how large a Pearson correlation is necessary to be statistically significant for a two-tailed test with  = .05? 3 The Pearson correlation is calculated for a sample of n = 25 individuals. What value of df should be

    asked by Chioma
  18. algebra

    Andrew measures they amount of a very unstable substance to be 100 moles. the half life of this substance is 3 days(after 3 days, half is gone). write an exponential function that models this situation where Y is the amount of substance and X is time in

    asked by Anonymous
  19. Physics

    11. An object with a charge of +6.0 µC is 0.30 m from a second object and experiences an attractive force of 1.80 N. What is the magnitude of the charge on the second object? (µC = 1.0 × 10-6 C) (Answer: -3.0 µC) Can someone please explain how to do

    asked by Ginger
  20. Precalculus

    To estimate the height of a building, two students find the angle of elevation from a point (at ground level) down the street from the building to the top of the building is 33 degrees. From a point that is 300 feet closer to the building, the angle of

    asked by marie darling
  21. organic chemistry isomers

    which of the following molecules has a conformational isomer? CHCH CH2CH2 CH3CH2CH2CH3 CH2CCCH2 I think its either 2 or 4 but leaning towards 4. I just need help being more confident in my answer.

    asked by erin
  22. chemistry

    Suppose that you did not completely convert the hydrate to dehydrate compound. Explain how would this affect the calculated percent by mass of water in a compound.

    asked by mitchel
  23. statistics

    A company produces batteries whose lifetimes are normally distributed with a mean of 100 hours. It is known that 90% of the batteries last at least 40 hours. (i). Estimate the standard deviation lifetime. (3 marks) (ii). What percentage of batteries will

    asked by Ravi
  24. Lincoln College Of New En

    The percentage of physicians who are women is 27.9% in a survey of physicians employed by a large university health system, 45 of 120 randomly selected physicians were women. Is there sufficient evidence at the 0.05 level of significance to conclude that

    asked by Paula
  25. math

    A long distance trucker traveled 240 miles in one direction during a snow storm. The return trip in rainy weather was accomplished at double the speed and took 5 hours less time. What is the speed going.

    asked by nannypam
  26. poetry

    CAN YOU PLEASE HELP ME WITH THE ANALYSIS OF THE POEM HIROSHIMA BY ANGELA CLIFTON

    asked by MARANQA
  27. AP Statistics

    A school psychologist reports that the mean number of hours the students at this school sleep each night is 8 hours. The students believe the mean is not 8 hours. To find an estimate of the true mean, they select a random sample of 15 students from their

    asked by Anonymous
  28. Lincoln College Of New En

    A survey by Men’s Health magazine stated that 14% of men said they used exercise to reduce stress. Use a = 0.10. a random sample of 100 men was selected and 10 said that they used exercise to relieve stress. Use the P –value method to test the claim.

    asked by Paula
  29. Algebra

    Which of the following graphs of exponential functions corresponds to a geometric sequence with a 1st term of 6 and a ratio of 1/2? I'm honestly so confused on this. :(

    asked by Tifini
  30. Economics

    Three types of indicators

    asked by Phumudzo
  31. life orientation

    recommendations on how to address pollution

    asked by betty
  32. Chemistry

    Calculate the molar solubility of MgCO3 in a solution that already contains 1.7×10−3 M sodium carbonate. MgCO3 Ksp = 6.82 x 10-6 IMPORTANT NOTE: You must use the quadratic equation to solve this problem. (DrBob222- thank you so much for all your help!)

    asked by Chloe
  33. more statistics

    The percent of fat calories that a person in America consumes each day is normally distributed with a mean of 36 and a standard deviation of about 10. Suppose that 16 individuals are randomly chosen for an experiment. Completely describe the distribution

    asked by luke
  34. Math

    A quarter has a diameter of approximately 24 millimeters. What is the area of the quarter? Did I work this right? A= 3.14 (12) A=3.14 (144) A-452.16 mm Thanks

    asked by Daniel
  35. physics

    A 2.70 m long pole is balanced vertically on its tip. What will be the speed (in meters/second) of the tip of the pole just before it hits the ground? (Assume the lower end of the pole does not slip.)

    asked by Nicole
  36. Math

    If X = 3 units, Y = 5 units, and Z = 11 units, then what is the volume of the rectangular prism shown above? A. 206 cubic units B. 165 cubic units C. 363 cubic units D. 75 cubic units E. neather above

    asked by Damani
  37. math/physics

    Estimate the percentage savings in the fuel bill if the thermostat is set back from 68 degrees F to 50 degrees F for 12 hours of the day, and left at 68 degrees F for the other 12 hours, assuming an outside temperature of 15 degrees F all day.

    asked by Samuel
  38. statistics

    A convenience store owner believes that the median number of lottery tickets sold per day is 49. A random sample of 20 days yields the data below. Find the critical value to test the owner's claim. 32 48 59 64 31 55 70 27 33 38 47 54 54 44 44 49 49 59 54

    asked by Shelby Hacker
  39. calculus

    The height of a projectile launched into the air is given by h (t)= -16t^2 + 48t + 60, where h is the height of the projectile in feet above the ground and t is the number of seconds after its launch. Find the *instantaneous rate of change* in the height

    asked by Brandy
  40. physics

    Two voltmeters, Vright and Vleft, each with an internal resistance of 106 Ω are connected through wires of negligible resistance (see the circuit below). The “+" side of both voltmeters is up as shown. A changing magnetic field is present in the shaded

    asked by sat
  41. Public Speaking

    To avoid speaking in monotone, a strategy to use can include: A. changing pitch and tone of voice. B. voice inflection. C. varying rate and pace of speaking. D. All of the above I read through my notes and I see A and B as answers, I don't see anything

    asked by Martha
  42. physics

    Three moles of nitrogen gas, N2, at 26.8 ◦C are contained in a 35.8 L cylinder. Find the pressure the gas exerts on the cylinder walls. Answer in units of Pa

    asked by Anonymous
  43. chemisrty

    how to prepare 40% of Nitric acid from 70% of the Nitric acid solution

    asked by meena
  44. Calculus (math)

    A rescue cable attached to a helicopter weighs 2 lb/ft. A 190 lb man grabs the end of the rope and is pulled from the ocean into the helicopter. How much work is done by lifting the man if the helicopter is 50 ft above to water.

    asked by Carl
  45. math

    To determine the number of trout in a lake, conservationist catches 161 trout, tags them and throuws them back into the lake. Later, 39 trout are caught: 13 of them are tagged. How many trout would the conservationist expect to be in the lake?

    asked by pam
  46. Physics

    Two identical positive charges exert a repulsive force of 7.0 10-9 N when separated by a distance of 3.2 10-10 m. Calculate the charge of each. _C

    asked by Mat
  47. chemistry

    The reaction x products follows Ist order kinetics in 40 minutes the concetration of x changes from 0.1M to 0.025M then the rate of reaction when conc of x is 0.01

    asked by ameer
  48. Calculus

    Use the limit process to find the area of the region between the graph of the function and the x-axis over the indicated interval. Sketch the region. y=2x-x^(3), [1,3]

    asked by Simon
  49. Language Arts

    I'd like to know if I answered these correctly. 1.Both the Whitman poem and the Dickinson poem are examples of poetry that? A. abandons conventional rhyme and meter. B. stresses the pangs of unrequited love. C.praises the work of ordinary people. D.

    asked by Eri
  50. Calculus

    On the moon, the acceleration due to gravity is -1.6 meters per second per second. A stone is dropped from a cliff on the moon and hits hits the surface of the moon 20 seconds later. How far did it fall? What was its velocity at impact?

    asked by Simon
  51. chemistry

    To reduce the loss of helium, a pressure vessel is lined with a membrane made of tantalum. The concentration of helium at the inner surface of the membrane is held constant at 4.44*10-5 kg/m3, while the concentration at the outer surface of the membrane is

    asked by Anonymous
  52. Geomatry

    A pilot flying at an altitude of 3500 feet sees a baseball field at an angle of depression on 35 degrees. what is the pilot's approximate horizontal distance, x, from the baseball field at this point? round your answer to the nearest foot.

    asked by Omar
  53. Calc

    If z = 2cis 60°, find z^4 in rectangular form. A.-8+8sqrt(3i) B.-8-8sqrt(3i) C.8+8sqrt(3i) D.8-8sqrt(3i) E.16-16Sqrt(3i)

    asked by Chris
  54. Physics

    Two voltmeters, Vright and Vleft, each with an internal resistance of 106 Ω are connected through wires of negligible resistance (see the circuit below). The “+" side of both voltmeters is up as shown. A changing magnetic field is present in the shaded

    asked by s
  55. physics

    What is the angular momentum (in kilogram-meter^2/second) of a 500.0 g ball rotating on the end of a string in a circle of radius 1.45 m at an angular speed of 1.50 rad/s?

    asked by Nicole
  56. Life orientation

    Identify and describe 3 environmental health hazards that causes ill health

    asked by Kgomotso
  57. Physics

    A spherical shell of radius R carries a uniform surface charge density (charge per unit area) σ. The center of the sphere is at the origin and the shell rotates with angular velocity ω (in rad/sec) around the z-axis (z=0 at the origin). Seen from below,

    asked by s
  58. chemistry

    A chemical analysis indicates that a silicon crystal weighing 100g contains 16.5 mg of aluminum (Al) which is substitution-ally incorporated (the Al atoms replace some of the Si atoms). What is the number of extrinsic charge carriers in this crystal?

    asked by Anonymous
  59. Math-probablity

    Assume a family is planning to have three children. A. What is is the probablity of a family having 2 girls. B. The probablity of a family having at least 1 boy. C. List the sample space using a B for Boy and G for girl (Hint there should be 8 possible

    asked by Angela
  60. English

    What assumptions can be made about a credible source? A. It is lengthy and details. B. It is from Wikipedia. C. It is not trying to sell a product. D. It is written by someone famous. Is It A. ??

    asked by Ms. Sue Please Help (Sandy)
  61. Math

    19. A family takes a car trip. They travel for an hour at 80 km/h and then for 2 hours at 40 km/h. Find the average speed. (Hint, Remember to consider the total distance and the total amount of time.)

    asked by June
  62. David luvhimba sec

    Life orientation....... Recomendation on how to address hiv/aids

    asked by Muila winney khutso
  63. Physics

    The switch in the circuit below has been open for a long, long time, R1=8.0 Ohm, R2=5.0 Ohm, L=0.03 H, V=1 V. The internal resistance of the battery is negligibly small. Determine the currents I1,I2,I3 (in Ampere) in the resistors and in the self-inductor

    asked by s
  64. accounting

    State Company manufactured a forklift machine at a cost of $60,000. The product is sold for $66,000 at a 5% discount. The delivery costs are estimated to be $6,000. Under IFRS, how much should be the carrying amount of this inventory?

    asked by Anonymous
  65. Chemistry

    To illustrate the calculation, assume that 21.95 mL of a thiosulfate solution is required to reduce the iodine liberated by 20.85 mL of 0.0200M KIO3 and that 18.63 mL of the same thiosulfate solution reacts with the iodine replaced by 20.00 mL of an

    asked by Marcus
  66. physics

    A current I=2.3 A flows around a continuous path that consists of portions of two concentric circles of radii a and a/2, respectively, where a=6 cm, and two straight radial segments. The point P is at the common center of the two circle segments. Calculate

    asked by sat
  67. Calc

    Which functions of x and y in terms of time t can be derived from this rectangular equation? (x^2/4)+y^2=1 A. x = 2sin t, y = -cos t B. x = sin t, y = 5cos t C. x = sin t, y = 2cos t D. x = -sin t, y = 2cos t E. x = 2sin t, y = 5cos t

    asked by Chris
  68. Math

    Math Problem: Find the area of a circle that has a radius of 14 feet. Round your answer to the nearest hundredth. Would someone please check the way I worked this and let me know if I did it correct or not? Thank You A=3.14 (14ft)2 A=3.14 (196) A=615.44 Im

    asked by John
  69. life oritation

    name two institutions/community organisation that are involved in supporting or giving redress to these disasters

    asked by mbulelo p
  70. science

    an object has a potential energy of 100 J when it is 10 m above the ground. if it were to fall without friction what would its kinetic energy be the instant it hits the ground

    asked by desiree
  71. statistics

    An independent-measures research study computes three treatment conditions with a sample of n=10 in each conditions. The sample means are M1=2, m2=3, and m3=7. a. Compute SS for the set of 3 treatment means. (Use the three means as a set of n=3) scores and

    asked by kisha
  72. L.o

    Institutions/community organizations that are involved in suporting or giving redress to Air Pollution

    asked by Tshifhiwa
  73. chemistry

    In a gas mixture, the partial pressures are argon 393 mm Hg, neon 73 mm Hg, and nitrogen 119 mm Hg. What is the total pressure (atm) exerted by the gas mixture?

    asked by Kendyl
  74. English

    Why is the ability to draw conclusions important in research? A. To discover the effect of the topic B. To enable further research C. To generate topic sentences D. To formulate a plan for research Is It A. ??

    asked by Sandy
  75. English

    What is the relationship between revision and content? A. Correct content makes revision unnecessary. B. Revision links content with sources. C. Revision makes sure all content is relevant. D. Content connects revised sentences together. Is it hmmmm wow

    asked by Ms. Sue Please Help (Sandy)
  76. College math

    Please HELP! In a certain lottery game players choose a set of 6 distinct numbers from the numbers 1-50. How many combinations are possible if order is not important. Thanks sooooo much!

    asked by Lorie
  77. Calculus

    In a test run, a new train travels along a straight-line track. Data obtained from the speedometer indicate that the velocity of the train at any time t can be described by the velocity function v(t) = 8t (0 _< t _< 30) a. Find the position function of the

    asked by Mimi
  78. Life orientation

    One environment or human factor that causes ill health or accidents in my community or any other community within South Africa.

    asked by Zanele
  79. algebra

    a model for a proposed computer chip measures 3/4 inch by 1 1/4 help me find the area

    asked by tanyelle
  80. life orientation

    how lifstyle behaviour cancer disease impact on the teenager?

    asked by thandeka
  81. chemistry

    A sample of molybdenum (Mo) is analyzed by x-ray diffraction using NiK radiation. Calculate the value of the angle at which the lowest-angle reflection is observed. Express your answer in degrees:

    asked by Anonymous
  82. chemistry

    N-type silicon (Si) has been produced by doping with phosphorus (P). The charge-carrier population based on electrical conductivity measurments is determined to be 3.091*1017 carriers/cm3 at room temperature. Calculate the doping level of P (how much P has

    asked by Anonymous
  83. 'A'level chemistry

    Plot a phase diagram of NaCl solution ,the minimum depression is 23 degrees celcious at concentration 5mol/dm-3. (I)concentration of NaCl(mol/dm-3) 0,6 ;1,2;2,2;3,5 freezing point depression (degrees celcious 2,0;4,0;8,0 ;14,0

    asked by Kuda
  84. Help????????????????????/

    Assume a family is planning to have three children. A. What is is the probablity of a family having 2 girls. B. The probablity of a family having at least 1 boy. C. List the sample space using a B for Boy and G for girl (Hint there should be 8 possible

    asked by Angela
  85. Chemistry

    If 10.5 g of hydrogen, H2, were mixed with 6.51 g of acetylene, C2H2, and allowed to react according to the following equation, what is the theoretical yield of ethane, C2H6, produced? If 7.00 g of ethane, C2H6, were recovered at the end of the reaction,

    asked by C.M.
  86. chemistry

    A specimen of LaNi5 containing hydrogen is placed in a vacuum furnace. After 1 hour, at what depth from the surface of the specimen has the concentration of hydrogen reached 1/3 the initial concentration? The diffusion coefficient of hydrogen in the alloy

    asked by Anonymous
  87. physic

    four moles of gas are contained in 2 litre vessel at the temperature of 200c at a pressure of 10atm.the gas is allowed to expand to anew volume of a 4litres ,but at the same time maintening the original temperature.what is the new pressure?

    asked by Anonymous
  88. english

    Questions about Avi(the author) Why was school a constant struggle for him? Avi kept writing because of the encouragement of his family and the help of whom? After college, what job did Avi take? where? When did Avi become interested in children's

    asked by kara
  89. math probablity

    Assume a family is planning to have three children. A. What is is the probablity of a family having 2 girls. B. The probablity of a family having at least 1 boy. C. List the sample space using a B for Boy and G for girl (Hint there should be 8 possible

    asked by Angela
  90. reading

    Renee has a research paper due in three days. She has set aside two hours to complete this task. What is wrong with this study goal? A. It is not significant and can’t be rewarded. B. The goal is not concrete and specific. C. The time she has allotted is

    asked by raul
  91. chemistry

    The energy of vacancy formation in palladium (Pd) is 1.5 eV. At 888C there is one vacancy for every million (106) atom sites. What temperature would be necessary to achieve a vacancy fraction of one for every thousand (10 3) atom sites? Express your answer

    asked by ssss
  92. chemistry

    Consider an x-ray tube with a Cu anode and a monochromator consisting of a nickel single crystal with (111) planes parallel to the surface of the crystal. What is the lowest voltage capable of producing x-rays through a monochromator? Express your answer

    asked by Anonymous
  93. Chemistry

    Calculate the density of atoms in (001) in lithium (Li)(units of atoms/cm2)

    asked by anonymous
  94. statistics

    The manager of a local gym has determined that the length of time members spend at the gym is a normally distributed variable with a mean of 80 minutes and a standard deviation of 20 minutes. What proportion of members spend less than 55 minutes at the

    asked by mk.
  95. Calculus

    In a test run, a new train travels along a straight-line track. Data obtained from the speedometer indicate that the velocity of the train at any time t can be described by the velocity function v(t) = 8t (0 ¡Ü t ¡Ü 30) a. Find the position function of

    asked by Mimi
  96. geometry

    show that minute hand gains five degree thirty minutes on hour hand in one minute

    asked by ajit yadav
  97. grammar

    Is the verb crave CRAVES in the following sentence transitive or intransitive? Fred craves cheeseburgers.

    asked by kara
  98. Physics

    A spherical shell of radius R carries a uniform surface charge density (charge per unit area) \sigma. The center of the sphere is at the origin and the shell rotates with angular velocity \omega (in rad/sec) around the z-axis (z=0 at the origin). Seen from

    asked by Phy
  99. Calculus

    The current circulation of a particular magazine is 3,000 copies per week. The editor projects a growth rate of g(t) = 4 + 5t^2/3 copies per week after t weeks. a. Find the circulation function based on this projection. b. Find the circulation in 2 years.

    asked by Karen
  100. Math help

    Find the slope of a line that is perpendicular to the line containing the points (–2, –1) and (2, –3). can you tell me how to do it and show the answer Thanks!

    asked by Mr.Brain
  101. chemistry

    The Young’s modulus for steel is 20.7*1010 N/m2. How much will a 2.5 mm diameter wire 12 cm long, be strained when it supports a load of 450 N? Aluminum’s Young’s modulus is 6.9*1010 N/m2. Express the strain as a decimal, not a percentage What

    asked by Anonymous
  102. Height and distance

    Show me cosine rule

    asked by Anonymous
  103. physics

    A Bainbridge mass spectrometer is shown in the figure. A charged particle with mass m, charge |q|=3.2 ×10−19C and speed v=3 ×10@6 m/s enters from the bottom of the figure and traces out the trajectory shown in the fields shown. The only electric field

    asked by sat
  104. college Mathematics

    I am having problems with permutations what is 5P2 The answer I have is 20 am I wrong?

    asked by Carol
  105. calculus

    A circle is formed with a center (-3, 5) and a radius 4 write a pair of parametric equations then show how to return to rectangular form

    asked by brady
  106. economics

    Suppose that a vegetable vendor pays 7% interest daily on a $10 loan. Then, suppose that this individual was able to save $0.50 per day by drinking less tea. Calculate the number of days it would take for the vendor to no longer need to borrow money in

    asked by cevin
  107. Physics

    A current I=2.3 A flows around a continuous path that consists of portions of two concentric circles of radii a and a/2, respectively, where a=5 cm, and two straight radial segments. The point P is at the common center of the two circle segments. Calculate

    asked by s
  108. Physics

    How much heat, expressed in Kwh, is required to raise the temperature of water in a 20,000 gallon pool by 10 degrees C. ?

    asked by Wolter
  109. physics

    A block of mass 8.50 is sliding along a smooth surface when it encounters a 0.800 long region of roughness with =0.310. The block emerges from the rough patch at a reduced speed of 5.00 and continues on.

    asked by lauren
  110. LIFE ORIENTATION

    3 ENVIRONMENTAL HEALTH HAZARD THAT CAUSE ILL HEALTH,CRISES,AND DISASTERS WITHIN YOUR COMMUNITY OR OTHER COMMUNITY WITHIN SOUTH AFRICA INCLUDING PICTURES ETC TO SHOW EVIDENCE

    asked by NTSAKO MAKAMUS
  111. physics

    Details and assumptions Note: Points ABCDE are labeled for easy reference if you need to use some combination of them in a solution. Request clarification or dispute Print this

    asked by Anonymous
  112. math

    Explain mentally which fraction would be the larger. Use two different types of thinking for each problem. A. 4/5 or 8/9 B. 3/5 or 3/8

    asked by Angela
  113. chemistry (need by 5!!)

    use the van der waals equation to calculate the pressure of 4.00 mol of H20 at 471K in a 4.60-L vessel. how do you solve?

    asked by Katherine
  114. computers

    Problem Solving INCORRECT PAY RATE: Recently you received a promotion that indicated a pay raise. You log into your company portal and verify that your rate of pay has increased. After receiving your next paycheck, however, you realize that you were paid

    asked by Anonymous
  115. Math

    Find the remaining zeros of the following polynomial given the P(i)=0. x^4-8x^3+14x^2-8x+13

    asked by Dobi
  116. physics

    a 100-kg b

    asked by lanina
  117. chemistry

    What is the plane and lattice structure that is represented in this picture? SC (100) BCC (100) FCC (100) SC (110) BCC (110) FCC (110) SC (111) BCC (111) FCC (111)

    asked by Maikol
  118. Physics

    A 10 m platform diver during his diving can increase his rotation rate from an initial rate of 0.8 rev/s to a maximum of 3.3 rev/s. If his initial moment of inertia was 10 kg·m2, what is his moment of inertia at his maximum rotation rate?

    asked by Derrick
  119. Biology

    The term "worm" is a description of a body shape. A worm had a long, thin body. Aew all worms in the same phylum? How do you know?

    asked by Allison
  120. real estate finance

    Frank and Mary are buying a home for $187,500. Their Good Faith Estimate indicates they will be paying $2200 in closing costs and prepaid expenses plus they want to do a permanent buy-down on their interest rate and will be paying 2 1/2 discount points.

    asked by tmouery
  121. chemistry

    Glass A has a composition of 90% SiO2 - 10% Na2O. Glass B has a composition of 99% SiO2 - 1% Na2O. Both glasses are cooled to room temperature at the same rate. (a) Which glass has the higher Tg? Glass A Glass B (b) Which glass has the lower free volume?

    asked by Anonymous
  122. English

    When two words in a poem are spelled similarly, but do not have the same sound, the type of rhyme is called_______________. A. eye B. end C. internal

    asked by Bob
  123. Vectors/Math

    If w = , find ||w||. A. 7 B. 17 C. 23 D.sqrt 7 E.sqrt 23

    asked by Chris
  124. math

    10cm^3 of a normal specimen of human blood contains 1.2g of hemoglobin. How many grams does 22cm^3 of the same blood contain?

    asked by pam
  125. precalc

    There is a line with two rectangular pt (3, 4)&(6,-3)write this line as a pair of parametric equations then show how you can eliminate the paparameter to return to rectangular form

    asked by brady
  126. English

    The following sentence is missing punctuation: "The twins although identical physically were polar opposites in terms of personality." Explain where the error has occurred in this sentence and how it can be fixed.

    asked by Shorty
  127. Math

    The perimeter of rectangle Z is equal to its area.Rectangle Y has the same perimeter as rectangle Z.The length of rectangle Y is 5 inches and width of rectangle Z.

    asked by Iveth
  128. chemistry

    Calculate the density of atoms in (001) in lithium. Express answer in atoms/cm.

    asked by anonyms
  129. life orientation

    how can i address water pollution

    asked by thandeka
  130. math

    what is the y-intercept of the line of 35.00 + 8.00x if the slope is 8

    asked by derek
  131. Chemistry

    Calculate the density of atoms on plane (001) in Lithium

    asked by anon
  132. Road surface

    How does braking force affect the vertical force of moving vehicle? Please show an example!

    asked by Raymond
  133. computer science

    What does it mean when there is a high prior probability in terms of Baynesian statistics?

    asked by Z
  134. english

    here can be some parallels made between the way politicians today might attack the foibles and personal shortcomings of their opponents, the same way Cassius does with Caesar in this play. Can you think of an example in modern politics? Think about

    asked by Evaa
  135. grammar

    Is the verb drives transitive or intransitive in the following sentence? Micheal drives his own car.

    asked by kara
  136. grammar

    is the word thirst transitive or intransitive in the following sentence? I thirst.

    asked by kara
  137. grammar

    Is the word Drives transitive or intransitive in the following sentence? Michael drives every day.

    asked by kara
  138. Math

    If X = 3 units, Y = 5 units, and Z = 11 units, then what is the volume of the rectangular prism shown above?

    asked by Damani
  139. chemistry

    Which of the following will increase the strength of a sample of 90% SiO2 - 10% MgO

    asked by Anonymous
  140. physics

    Consider a thin, infinitely long conducting ribbon that carries a uniform current density j (current per unit area). The width of the ribbon is w and its thickness s is extremely small (s≪w). P is a point in the plane of the ribbon, at a large distance

    asked by sat
  141. Road surface

    Follow-on from a previous question: is there a component of any vertical force resulting from the braking force a braking vehicle?

    asked by Raymond
  142. physics for physical science

    (a)what is the magnitude of the gravitational force of the earth on a surveillance satellite of mass 1040kg that is in a grazing circular orbit 100 km above the surface of the earth. (b)find the magnitude of the acceleration of the satellite in such a

    asked by lonia
  143. algebra

    A student traveled 206 km in 16 days. At the same ratio, how far would the student travel in 64 days?

    asked by joe
  144. South Tahoe Middle School

    A loan of $20,000 at 8% with payments & interest of $1,800. What is the amount owed after 11 payments have been made?

    asked by Katie
  145. math probablity- Respond as soon as possible

    Assume a family is planning to have three children. 1. Why do probabilities centered around this scenario represent the same probabilities as those for flipping three coins

    asked by Angela
  146. math

    12/5x0.6x(0.5x10-3)12= I really need help with this one I cant calculate it can someone help

    asked by Yasmine
  147. Science

    Urgently needed for my n.e.e.t test next week.. Calculator not allowed.. How do i find antilog of (-10.6) for solving a pH based question?? Please help!

    asked by Sneha
  148. precalc

    a circle is formed with a center (-3,5) and a radius.of 4 write the circle as a pair of parametric equations. then show how you can eliminate the parameter to return to the rectangular form

    asked by gggggg
  149. Physics-- please help me finish!!

    Ive tried using the formulas my teacher gave me, however I can't seem to get the right answers. Please help! A 1.4-kg block hangs from a spring. A 363-g body hung below the block stretches the spring 2.6 cm farther. What is the spring constant? When the

    asked by Madison
  150. thermodynamics

    how much of energy need to evaporate 1 kg moles of hydrated water

    asked by prabhakar
  151. Math

    A polymomial p(x) = ax^2 + bx + c where a, b, c are some rational, has 1 + root 3 as one of the zeros and also p (2) = - 2, Find values of a, b and c. Please work the solution. Tried it many times but still can't get the answer/ The answer is a = 1, b = -2

    asked by Bob
  152. Math

    A polymomial p(x) = ax^2 + bx + c where a, b, c are some rational, has 1 + root 3 as one of the zeros and also p (2) = - 2, Find values of a, b and c. Please work the solution. Tried it many times but still can't get the answer/ The answer is a = 1, b = -2

    asked by Bob
  153. chemistry

    Which of the following will increase the strength of a sample of 90% SiO2 - 10% MgO Quench the entire sample in water Quench half of the sample in water Cool the entire sample with air jets Cool half the sample with air Submerge the sample in a salt bath

    asked by ssss
  154. science

    an object moving at a speed of 1m/s has a kinetic energy of 5 J what is its kinetic energy when it moves at 3m/s

    asked by mary
  155. science

    Mary puts 50g of A into container X and another 50g of A into container Y. She found that the volume of A in containers X and Y are the same. What state of matter can A be?

    asked by Yeo
  156. slopes

    Find the slope of a line that is perpendicular to the line containing the points (–2, –1) and (2, –3). can you tell me how to do it and show the answer Thanks!

    asked by Mr.Brain
  157. World geography

    Scotland's lake and rugged highlands were created by what?

    asked by Rolando
  158. Pre-Calculus

    I'm having problems understanding how to do these problems. 25. 32^(2x-3)=2 27. 1/4= 2^3x 29. 9^x=27 33. 81^(x-1)= 27^2x

    asked by Caroline
  159. Math

    A polymomial p(x) = ax^2 + bx + c where a, b, c are some rational, has 1 + root 3 as one of the zeros and also p (2) = - 2, Find values of a, b and c. Please work the solution. Tried it many times but still can't get the answer/ The answer is a = 1, b = -2

    asked by Bob
  160. math

    Jeff takes a loan of R25000 in a period of 5years calculate the interest rate?

    asked by Daniel
  161. math

    An observer is located on the ground 6 kilometers from the point where a space shuttle is launched (vertically). When the shuttle is 8 kilometers high, it is travelling at 500 kilometers per hour. Determine, for that moment, the rate at which the distance

    asked by Thien Nguyen
  162. english

    Please need help writing a poem? well i have decided to right about marriage and so far i have done this when marriage isn't as important in life, it breaks you apart when it's needed but most marriages do get succeeded sorry don't know any more but please

    asked by yesica
  163. math 115

    C(x)=450x+5000, R(x)=-3x^2+900x for 20

    asked by Lex