Questions Asked on
January 30, 2014

  1. Physics

    A ball player catches a ball 3.33s after throwing it vertically upward. a) with what speed did he throw it? b) what height did it reach?

    asked by Daniela
  2. Math

    1. Jacob is baking chocolate chip cookies. The recipe uses 3/4 cup of sugar. Jacob wants to make one half of a batch. How many cups of sugar does he need? My answer is 1/4 cups if sugar. 2. In the fridge, hannah had 2/3 of a quart if milk. She used half of

    asked by Khys
  3. Calculus

    Let g and h be any two twice-differentiable functions that are defined for all real numbers and that satisfy the following properties for all x: I) (g(x))^2 + (h(x))^2=1 ii) g'(x)= (h(x))^2 iii) h(x)>0 iv) g(0)=0 a)Justify that h'(x)=-g(x)h(x) for all x b)

    asked by Rachel
  4. Statistics

    The per-store daily customer count (i.e., the mean number of customers in a store in one day) for a nationwide convenience store chain that operates nearly 10,000 stores has been steady, at 900, for some time. To increase the customer count, the chain is

    asked by Anonymous
  5. AP Chemistry

    Which one of the following compounds is not a salt? 1. Ca(ClO4)2 2. Fe(NO3)3 3. Cr(OH)3 4. Na2SO3 5. KMnO4

    asked by Gabriella
  6. Science-check my answers plz

    Which of the following explains why sunlight is important to aquatic ecosystems? Sunlight provides a source of heat energy to increase water temperatures. Sunlight keeps harmful bacteria from taking over aquatic ecosystems. Sunlight makes it possible for

    asked by Princess Anna
  7. physics

    Two point charges lie on the x axis. A charge of 6.2μC is at the origin, and a charge of -9.5μC is at x=10.0cm. What is the net electric field at (a) x=−4.0cm and at (b) x=+4.0cm?

    asked by afton
  8. physics

    A stream of water strikes a stationary turbine blade horizontally, as the drawing illustrates. The incident water stream has a velocity of + 17.4 m/s, while the exiting water stream has a velocity of – 15.0 m/s. The mass of water per second that strikes

    asked by ben
  9. maths

    1 curry and 1 tea cost £4. 2 curries and 2 puddings cost £9. 1 pudding and 2 teas cost £2. What do you have to pay in total for 1 curry, 1 pudding and 1 tea? What does each item cost on its own?

    asked by jessica
  10. science

    Provide at least two modern examples of how the United States has increased its food production.

    asked by rat
  11. science

    plz any one these are some mcqs i am preparing for a test i m not sure with the answers of these mcqs this is not a homework not an online course exam so feel free to answer these thankx MCQS 01. Changes of equal magnitude are separated by some distance.

    asked by Sania
  12. science

    A steel block has a volume of 0.08m3 and a density of 7,840kg/m3 what is the force of gravity acting on the block(the weight in water?

    asked by Anonymous
  13. Lotto game

    This is winning Number, 55-80-83-65-3, pls can you help me out of the next number on 1th feb 2014, pls,

    asked by Adekunle
  14. speed

    a train approaching a crossing changes speed from 25 m/s to 10 m/s in 240 s. How can the train's acceleration be described?

    asked by Anonymous
  15. chemistry

    How many cubic centimeters (cm3{\rm cm}^3) of olive oil have the same mass as 2.00LL of gasoline?

    asked by Keni
  16. Physics

    A bar of gold is in thermal contact with a bar of silver of the same length and area. One end of the compound bar is maintained at 80.0°C while the opposite end is at 30.0°C. When the energy transfer reaches steady state, what is the temperature at the

    asked by Brody
  17. Statistics

    The per-store daily customer count (i.e., the mean number of customers in a store in one day) for a nationwide convenience store chain that operates nearly 10,000 stores has been steady, at 900, for some time. To increase the customer count, the chain is

    asked by Anonymous
  18. science

    plz any one these are some mcqs i am preparing for a test i m not sure with the answers of these mcqs this is not a homework not an online course exam so feel free to answer these thankx MCQS 01. Changes of equal magnitude are separated by some distance.

    asked by Sania
  19. physics

    A flywheel has a small magnet mounted on it. EAch time the magnet passes the coil, a voltage pulse is generated, which is passed to the c.r.o. The display of the c.r.o. is 10cm wide. The flywheel is rotating at a rate of about 3000 revolutions per

    asked by Saraf
  20. physics

    A frog in a hemispherical bowl, as shown below, just floats in a fluid with a density of 1.29 ✕ 103 kg/m3. If the bowl has a radius of 5.30 cm and negligible mass, what is the mass of the frog?

    asked by Anonymous
  21. Science

    Which of the following determines the type of biome classification that will be made for a particular reason? a. Climate* b. Size c. Mineral deposits d. Number of human settlements

    asked by Maria
  22. Math

    On a map, 1/2 inch=10miles. How many miles apart are two towns that are 2 1/4 inches apart on the map?

    asked by Tarik
  23. math

    John had $24.He spent 2/3 of his money.How much he has left.

    asked by olivia
  24. science

    Ship made of iron doesn't sinks but iron nail sinks. Why?

    asked by Arpan
  25. college chemistry

    DrBob222. when you move ice from zero to final T. Do you add 100 cal.?

    asked by Linda
  26. Physics 141

    A snowmobile moves according to the velocity-time graph shown in the drawing. What is the snowmobile's average acceleration during each of the segments A, B, and C? The scale for the time axis is 100 s per increment, and the scale for the velocity axis is

    asked by Hope
  27. literature

    The story of The Wolf use.by Chief Pontiac is an example of A. a simile B. a myth c. personification

    asked by Alice
  28. Math

    Find an equation of the line having the given slope and containing the point. M=-8,(1,8)

    asked by Pam
  29. Algebra

    What are some real-life examples of exponential decay? Please help me think of some ideas...except radioactive decay.

    asked by Anonymous
  30. Chemistry

    At noon on a clear day, sunlight reaches the earth\'s surface at Madison, Wisconsin, with an average power of approximately 1.00 kJ·s–1·m–2. If the sunlight consists of photons with an average wavelength of 510.0 nm, how many photons strike a 1.30

    asked by Clare
  31. Math

    Find the slope, if it exists, of the following line. X=2/15

    asked by Pam
  32. geometry

    Dru is challenged by her geometry teacher to estimate the height of the school flag pole without measuring. She decided to walk off the length of the shadow cast by the pole by successively walking the noted length of her shadow. If dry is 5ft 6 in.tall

    asked by jan
  33. Science

    What is the mass of water that results from combining 2.0 g of hydrogen with 16.0 g of oxygen? 14.0 g (I'm thinking this.) 16.0 g 18.0 g 20.0 g

    asked by Anonymous
  34. Science

    Which of the following shows the correct order from coldest to hottest average annual temperature? a. Taiga-Tundra-Rainforest-Temperate forest b. Rainforest-Temperate forest-Taiga-Tundra c. Temperate forest-Taiga-Tundra-Rainforest d. Tundra-Taiga-Temperate

    asked by Marie
  35. Mathematics

    city A is 300km due east of city B , city C is 200km on a bearing 123 degree from city B. how far is it from C to H?

    asked by okeke onyinye
  36. English

    Can you please give me the answers for the blanks? these are about "A Modest Proposal" 7. Advantages to his problem= (1)_______ (2)gives poor a valuable commodity (3) enlarge treasury or stimulate the economy 8. Speaker thinks reader objections would be

    asked by McKale
  37. Physical Education - Check my answer please

    Excess body fat may cause... Answer choices: 1. diabetes, lack of stored energy, stroke, and heart disease. 2. lack of organ protection, osteoarthritis, and hyper tension. 3. sleep apnea, lack of organ protection, and liver disease. 4. stroke, infertility,

    asked by Elina
  38. math

    find the 4th term of an arithmetic sequence whose first term is -8 and whose 9th term is 32.

    asked by breauna
  39. science --- check my answers!

    help pls asap!!!!! check my answers!!! 4.) A certain object has a volume of 25.0 mL and a mass of 100g. What is the density of the object? a)0.250 g/mL b) 4.00/mL*** c)125 g/mL d) 2500 g/mL 5.)Which of the following is a chemical property of aluminum?

    asked by TTR+S<3
  40. chemistry

    How many cubic centimeters (cm3{\rm cm}^3) of olive oil have the same mass as 2.00LL of gasoline?

    asked by Keni
  41. science

    If the absolute temperature of gas is 600K, the temperature in degrees celsius is A.273 b.705c

    asked by Alice
  42. chemistry

    Need help balancing this chemical reaction equation Ca(NO3)2+2NaOH>Ca(OH)2+2NaNO3

    asked by anna
  43. science

    in a gasoline engine, the area in the cylinder head where the air-end and-fuel mixture is burned is called the A. piston B. cylinder c. combustion chamber D. intake valve

    asked by Anonymous
  44. Physics

    On an unknown planet, a pendulum of length 1.5 m swings with a period of 3.3 s. What is the acceleration of gravity on this planet?

    asked by Rachell
  45. math

    Eighty students took the pre-algebra test and 90% of them scored 85% or higher. How many students scored 85% or higher on their test? How many students scored below 85% on their test?

    asked by mon
  46. math

    how many groups of 8 are in 96?

    asked by Anonymous
  47. Math

    A 12-foot ladder is set up 5 feet from the base of a building. How far up the building does the ladder reach? Round your answer to the nearest tenth of a foot.

    asked by Serena
  48. Math Pre-Cal

    When I am giving the point vertex of (1,-1) and another point of (2,2) and i need to put the answere in the form f(x)=ax^2+bx+c how would I go about doing that?

    asked by Holly
  49. Chemistry

    Consider the process where 1.3 moles of ice, initially at -30.0 C, is heated to 140.0 C at constant pressure of 1.00 atm. The molar heat capacities (Cp) for solid, liquid, and gaseous water (37.5 J K-1 mol-1, 75.3 J K-1 mol-1, 36.4 J K-1 mol-1,

    asked by Bryan Josten
  50. math

    At the city museum, child admission $5.30 is and adult admission is $9.00. On Friday, three times as many adult tickets as child tickets were sold, for a total sales of $872.10. How many child tickets were sold that day?

    asked by colt
  51. math

    A pronghorn antelope can travel 105 miles in 3 hours.if it continued at the same speed how far could a pronghorn travel in a 11 hours

    asked by mike
  52. Math

    For what values of b is the expression factorable? x^2 + bx + 12

    asked by Anonymous
  53. physics

    On a day with a breeze blowing from the west at 8.5km/h, a remote control helicopter, facing north, takes off vertically from a level field at full power. It has a mass of 700g and the propeller generates 10N of thrust when running at full power. Once it

    asked by irvin
  54. Science

    plz any one these are some mcqs i am preparing for a test i m not sure with the answers of these mcqs this is not a homework not an online course exam so feel free to answer these thankx MCQS 01. Changes of equal magnitude are separated by some distance.

    asked by Sania
  55. math

    If the rectangles width is trippled and its length is doubled the perimeter of the new rectangle is 92 centimeter greater than the original perimeter what is the area of the original rectangle?

    asked by annie
  56. Chemistry

    Calculate the enthalpy change of formation for the following reactions using Hess's law, and the enthalpies of formation given in Figure 4: b) MgO +2HCl --> MgCl2 +H2O c)NaOH+ HCl -->NaCl +H20 Figure4: the given enthalpies of formation compound values are:

    asked by BOB
  57. EQUVALENT RATIO

    Write five equivalent ratios for each ratio. 18 to 8 ?

    asked by Regan
  58. math

    If the rectangles width is trippled and its length is doubled the perimeter of the new rectangle is 92 centimeter greater than the original perimeter what is the area of the original rectangle?

    asked by annie
  59. biostaticis

    What do each of the following represent? (a) The proportion of persons who test positive for some disease who actually have the disease. (b) The proportion of persons with some disease that test positive for the disease. (c) The proportion of persons who

    asked by Anonymous
  60. English

    How would you put the prologue of Romeo and Juliet by William Shakespeare from high style to low style? In other words how would you put slang into it?

    asked by Anonymous
  61. literature

    When does the narrative of sojourner truth take place

    asked by Alice
  62. Math - Quart to Gallon Ratio

    A punch recipe for half gallon (64 oz) of punch requires one pint (16 oz) of grape juice. How many quarts (1 qt = 32 oz) of grape juice are required for 2 1/2 gallons of punch?

    asked by Anonymous
  63. Physics

    How much momentum does a .01 kg ping pong ball have if it is traveling at 25 miles/hour? (1.609km=1 mile)

    asked by Georgianna
  64. Math

    A math teacher wishes to use groups of 5 and/or 7 students for a class assignment. When she tries to make assignments she notices that it cannot be done with the number of students in her class. However, if the number of students were any larger, the

    asked by David
  65. ecosystems

    Hi, can someone help me? What land biome has the lowest humidity? I guess Tundra. A tundra if I'm not mistaken. There were 4 answers: tundra temperate forest grassland rainforest

    asked by Hi
  66. Physics

    How much momentum does a .01 kg ping pong ball have if it is traveling at 25 miles/hour? (1.609km=1 mile)

    asked by Georgianna
  67. Biology

    Viroids typically infect plant, while prions typically infect nervous system. Is this correct? thanks!

    asked by Sarah
  68. Biology

    During the ______ pathway, a host cell infected with a virus lyses and releases new virus particles. During the _______ pathway, viral DNA replicates along with the cell, but new viruses are not immediately produced. Please help!

    asked by Sarah
  69. Science

    a__has a definite shape and a definite volume

    asked by Anonymous
  70. Math

    Find an equation of the line having the given slope and containing the point. M=-8,(1,8)

    asked by Pam
  71. Math

    Find the slope, if it exists, of the following line. X=2/15

    asked by Pam
  72. math

    If I had borrowed 1500 for six months at 8.5% annual simple interest. How much I will have to repay at the end of six months period

    asked by seravyan
  73. Math

    Find the slope, if it exists, of the following line. X=2/15

    asked by Pam
  74. Physics

    A severe thunderstorm dumped 2.4 in of rain in 30 min on a town of area 35 km^2. What mass of water (in kg) fell on the town? One cubic meter of water has a mass of 103 kg.

    asked by Robin
  75. Physics

    Grains of fine California beach sand are approximately spheres with an average radius of 50 μm and are made of silicon dioxide, which has a density of 2.4 × 10^3 kg/m3. What mass of sand grains would have a total surface area (the total area of all the

    asked by Robin
  76. Calculus II

    Find an equation of the set of all points equidistant from the points A(−2, 6, 3) and B(5, 3, −3)

    asked by julide
  77. science

    The Earth is a satellite of the sun? If not can you tell me what it is?

    asked by ilikezackalot
  78. Health

    The coach noticed that Caleb really started to kick the soccer ball with great amount of power after the kicking drills. Caleb adjusted the power of his soccer kick by increasing the speed of his kicking leg prior to and upon contact with the ball starting

    asked by Ben
  79. Math

    If a boat rental company charges 100.00 a day plus .50 per kilometer and another company charges 90.00 a day plus .60 per kilometer, at how many miles would the bill at both companies be the same?

    asked by Andre
  80. english

    In the sentence "What made you angry?" what part of speech is the word "you"?

    asked by amy
  81. physics

    If the ball is in equilibrium when the string makes a 43◦ angle with the vertical as indicated, what is the net charge on the ball? The acceleration due to gravity is 9.81 m/s 2. Answer in units of C

    asked by Anonymous
  82. Chemistry

    While in Europe, if you drive 109km per day, how much money would you spend on gas in one week if gas costs 1.10 euros per liter and your car's gas mileage is 23.0mi/gal ? Assume that 1euro=1.26dollars.

    asked by Taylor
  83. Physics

    A water heater is operated by solar power. If solar collector has an area of 6.00m^2, and the intensity delivered by sunlight is 550W/m^2, how long does it take to increase the temperature of 1m^3 of water from 20°Cto 60°C?

    asked by Brody
  84. Chemistry

    What is the mass of sodium nitrate NaNO3 that you would need to add to 250 g of water in order to prepare a solution that is 0.200 molal in NaNO3?

    asked by Mike
  85. EQUVALENT RATIO

    Would you do it the same way for 17:6 ? multiply and divide?

    asked by Regan
  86. Chemistry

    A particular brand of gasoline has a density of 0.737 g/mL at 25 ∘C. How many grams of this gasoline would fill a 15.1gal tank?

    asked by Taylor
  87. chemistry

    how many kilocalories of heat are released when 85g steam at 100 degrees C converted to ice at 0.

    asked by Anonymous
  88. Sweg

    Can plants think or something?

    asked by Sweg Master D
  89. help me with this language arts.

    Multiple Choice 1. A court order that integrated the schools in a city would (1 point) bring students of different races together. close down the schools. keep students of different races apart. 2. Read the following passage from Through My Eyes: After the

    asked by josh
  90. AP Chemistry

    50.0 mL of an HCl solution with a pH of 3.5 neutralizes 200.0 mL of a Ca(OH)2 solution. What is the molarity of the Ca(OH)2 solution?

    asked by Gabriella
  91. Health - CHECK MY ANSWERS PLEASE

    Chris wants to know his BMI. He is five feet, six inches tall and weighs 130 pounds. What is Chris's BMI? Answer choices: 1. 18 2. 21 3. 28 4. 30 **MY ANSWER** Is it: 2. 21?

    asked by Elina
  92. EQUVALENT RATIO

    Did I do it right? 17:6 34:12 51:18 68:24 85:30 102:36

    asked by Regan
  93. math --- 2 questions!

    help pls!!! i am confused!! can you check to see if these are right!?? 4. List all of the quadrilaterals with exactly one pair of parallel sides. (1 point) parallelogram; trapezoid rhombus; parallelogram; rectangle trapezoid rhombus; square; rectangle 5.

    asked by TTR+S<3
  94. AP Chemistry

    How many moles of NaOH will it take to neutralize 0.77 L of 0.81 M HCl? Answer in units of mol

    asked by Gabriella
  95. AP Chemistry

    A 65 mL sample of a solution of sulfuric acid is neutralized by 46 mL of a 0.14 M sodium hydroxide solution. Calculate the molarity of the sulfuric acid solution. Answer in units of mol/L

    asked by Gabriella
  96. math

    last year, 2713 teachers attended a technology conference. if there were 163 more men than women at the conference, how many men and how many women attended?

    asked by taylor
  97. language arts, plays

    On October 1, 1956, The Diary of Anne Frank opened simultaneously in seven cities in Germany. At the end of the play, the audience sat silently without applauding. Not long after the play’s opening, Germans began openly expressing remorse for the

    asked by Maria
  98. math

    the perimeter of a rectangular garden is 40 meters. the length of the garden is 1 meter less than twice its with. what are the dimensions of the garden?

    asked by taylor
  99. AP Chemistry

    If 400 mL of 3.2 molar HCl solution is added to 300 mL of 2 molar NaOH solution, what will be the molarity of NaCl in the resulting solution? Answer in units of M

    asked by Gabriella
  100. Statistic

    1. For this assessment, explicityly state the five steps of a simulation and carry out the simulation. Use the random digit table. A basketball player makes 80% of her free throws. Recently during a very close game, she shot 5 free throws near the end of

    asked by Helen
  101. AP Chemistry

    If 435 mL of 2.7 molar HCl solution is added to 128 mL of 3.2 molar Ba(OH)2 solution, what will be the molarity of BaCl2 in the resulting solution? Answer in units of M

    asked by Gabriella
  102. math (eliminations)

    5x=-3y-9 2x-5y=-16 elimination

    asked by taylor
  103. EQUVALENT RATIO

    If it's in a fraction like. 15/13?

    asked by Regan
  104. math

    last year, 2713 teachers attended a technology conference. if there were 163 more men than women at the conference, how many men and how many women attended?

    asked by taylor
  105. Exponential Growth and Decay

    Doctors use iodine-131 to treat some forms of cancer. The half-life of iodine-131 is 8 days. A patient receives a treatment of 12 millicuries. A millicurie is a unit of radioactivity. How much iodine-131 remains in the patient 16 days later?

    asked by Anonymous
  106. math

    last year, 2713 teachers attended a technology conference. if there were 163 more men than women at the conference, how many men and how many women attended?

    asked by taylor
  107. math

    the perimeter of a rectangular garden is 40 meters. the length of the garden is 1 meter less than twice its with. what are the dimensions of the garden?

    asked by taylor
  108. science

    If the student opened the bag after the above experiment, what would happen to volume of gas inside? A. The volume of gas in the bag will stay the same. B. the volume of gas in the bag will be decrease. C. The volume of gas in the bag will be increase. D.

    asked by Paul
  109. Math

    I have a 7 in the tens place a 3 in the hundred thousand place a 4 in the tenths place and a 1 in the thousandths place what number am I?

    asked by Gitzel
  110. PLEASE HELP MRS SUE

    THE PERIMETER OF A RECTANGULAR GARDEN IS 40 METERS. THE LENGTH OF THE GARDEN IS 1 METER LESS THAN TWICE ITS WIDTH WHAT ARE THE DIMENSIONS OF THE GARDEN?

    asked by taylor
  111. everest online

    2. At the end of each year a self-employed person deposits $1,500 in a retirement account that earns 10 percent annually. a) How much will be in the accountant when the individual retires at the age of 65 if the contributions start when the person is 45

    asked by shunda
  112. Physics

    An object is dropped from a platform100 ft high. Ignoring wind resistance, how long will it take to reach the ground?

    asked by AS
  113. SAT

    Please help me. I am a foreign boy. English is not my first language. I find the SAT questions too tough. In my home land we did not learn much english in high school. How can I pass the SAT with a good score?

    asked by Mohammed
  114. reading

    how did the dust bowl worsen the misery of the great depression. use details and examples

    asked by anonymous
  115. Math

    I have a 7 in the tens place a 3 in the hundred thousand place a 4 in the tenths place and a 1 in the thousandths place what number am I?

    asked by Gitzel
  116. Ratio

    If a dress that is made out of 2 yards of fabric will shorten 2 inches because of the hem, how much would a dress made out of 1.5 yard of fabric shorten because of the hem?

    asked by Angela
  117. Is this an area question?

    Dory wants to lay down carpet in ta room of her house. The room is rectangular in shape and are 15 feet by 20 feet. How much carpet will she need?

    asked by Angela
  118. CERT IV in allied health

    Make one suggestin to change workpractice in allied health facility How would you encourage team members to have positive attitude to the change you are suggesting?

    asked by Amanda
  119. English

    I am doing descriptive writing how can i describe a shooting scene in a school? it needs to be detailed, chaotic and interesting

    asked by Anonymous
  120. Math

    Scott deposits $400 into an account that pays simple interest at a rate of 6% per year. How much interest will he be paid in the first 2 years?

    asked by Casi Danielle'
  121. Engineering

    Microprocessing chips are randomly sampled one by one from a large population, and tested to determine if they are acceptable for a certain application. Ninety percent of the chips in the population are acceptable.

    asked by BRARSAAB
  122. Physics

    On a curved roadway of radius 100 m, the suggested speed limit is 35 mph (approximately 16 m/s). What must the coefficient of friction be between a car’s tires and the road for the car to safely negotiate the curve at the posted speed?

    asked by Tom
  123. social studies(check answers)

    please check my answers and if there wrong maybe you could tell me the correct one.but thanks anyways. 1. How did the formation of the National Action Party change Mexican politics? A.It ended the one-party system. B.It consolidated power among a few key

    asked by annabelle
  124. Food Labels

    5. The food label law is mandatory for the following foods: a. ready-to-eat foods at a bakery, deli, and/or candy store b. most food except meat and poultry*** c. medical foods d. coffee,tea and spice Thank You.

    asked by Cassie
  125. Group process?

    This old supervisor works at shop soon another supervisor gets hired and old supervisor sees this new one saying racial comments and didn't like behaviour What perspective present in old supervisor belief that new supervisor shouldn't be supervisor? Power?

    asked by Mohammad
  126. physics

    A spring (k=80n/m) lies on a frictionless table, one end connected to the wall, the other to a 4kg block. The block is pulled, stretching the spring .5m. and then released. A) max elastic potential energy of system? b) total energy? C) what is the

    asked by Amina
  127. science

    a silver bar 0.125 meter long is subjected to a temperature change from 2oo degrees celsius to 100 degrees Celsius what will the length of the bar be after the temperature change

    asked by Alice
  128. PHI 103

    "~ P v Q" is best read as (Points : 1)

    asked by Anonymous
  129. fractions

    how to put 1/4,6/7,3/5 in least to greatest form

    asked by jadiah
  130. Science

    Explain why pentane has a significantly higher vapor pressure than 1-butanol?

    asked by Jacky
  131. Science

    Using concept of Surface Tension, explain why does the detergent cause the effect observed?

    asked by Jacky
  132. Science

    Predict change in temperature for 1-butanol, CHSCH2CH2CH2OH, if same experiment were using 1-butanol?

    asked by Jacky
  133. Science

    Does ΔT from evaportation increase or decrease with increasing molecular mass? Explain why?

    asked by Jacky
  134. science

    liquid alcohol will change to vapor when its temperature reaches the A. boiling point B. fusing point C. freezing point D. melting point

    asked by Alice
  135. physical science

    A rock thrown straight up climbs for 4.24 s, then falls to the ground. Neglecting air resistance, with what velocity did the rock strike the ground?

    asked by Coya
  136. Physics

    A small 9g plastic ball is suspended by a 35 cm long string in a uniform electric field 1110 N/C as shown. The ball is in equilibrium when the string makes a 23 degree angle with the vertical.

    asked by Eliz
  137. Calculating Quarts from Pints in a Ratio Help

    Can someone please explain the steps to solving this problem without a calculator? Seth drank three pints of water a day for 6 days. How many quarts of water did he drink

    asked by Angela
  138. US history

    what happened as a result of the Second Bank of the United States not having its charter renewed in 1836??? ***was inflation involved???

    asked by nicole
  139. Spanish

    Write forms of tener que to tell what the following people have to do. Yo presentarte a mis amigos. ¡Ellos conocerte! Can someone help me with the first 2 to get started?

    asked by Kamie
  140. Math

    Could you use doubling to multiply 7x3? Explain?

    asked by Bob h
  141. english

    I have to write about person who smokes using three dimensions which are cultural, institution and personal. How should I go about this? Please give me an example. Thanks.

    asked by Anonymous
  142. English

    What does this sentence mean? The thorns of the roses and the roses' fragrance equal each other. Does it mean that there is good for the bad, and that it is okay to have the bad because there is enough good?

    asked by Anonymous
  143. physics

    A glass window pane has an area of 3.00 m2 and a thickness of 0.600 cm. If the temperature difference between its faces is 25.0°C, what is the rate of energy transfer by conduction through the window.

    asked by Brody
  144. Physics

    Two speeding lead bullets each of mass 5 g and temperature of 20°C collide head on at speeds of 500m/s each. Assuming a perfectly inelastic collision and no loss of energy to the atmospheres, describe the final state of the two bullet system.

    asked by Brody
  145. Pre cal

    determine the function f whose graph is given the vertex is (3,-13) and the y intercept is -4 how whould i work this out

    asked by shelly
  146. Math

    Find a value that satisfies the inequality 0.7

    asked by Wes
  147. Northwestern

    Which of the following substances is a liquid fuel used in rocket engines A. liquid oxygen B. Ammonia c. potassium perchiorate D. codium nitrate

    asked by Anonymous
  148. Math help

    I have a question. How would you solve a system if the variable and number is in front of the equals sign for example : y=3 4y=2x+18 I need help can someone guide me on this?

    asked by Anonymous
  149. English

    I am doing descriptive writing. Please read and check my story I need help to write a solid interesting ending. The Unexpected I’m in a hospital bed with my mum gripping her hand onto mine. All I have endured is an extensive amount of excruciating agony

    asked by Anonymous
  150. chemistry

    a 42 piece of ice at 0.0 C is added to a sample of water at 8.0 C. all of the ice melts and the temperature of the water decreases to 0.0 C. how many grams of water were in the sample.

    asked by Linda
  151. pre cal

    how do you determine the the quadratic function if the problem gives you a graph with the line has points of (-3,5) and (0,-4)?

    asked by shelly
  152. 6th grade honor science

    having trouble with this question it was fill in the blank it was In a food web, an organism that eats an animal is a blank consumer

    asked by rian
  153. college chemistry

    a 42 piece of ice at 0.0 C is added to a sample of water at 8.0 C. all of the ice melts and the temperature of the water decreases to 0.0 C. how many grams of water were in the sample.

    asked by Linda
  154. Math

    If the cost is 3.00 doars per sq ft to clean a carpet, how much will it cost to clean a carpet 12.5 ft x 23ft?

    asked by Ron
  155. math

    If 3 hexagons and 4 trapezoids cost 200 in total what of is the cost of each piece alone?

    asked by aileen
  156. math

    There are 480 students enrolled at school and 75% of those students buy their lunch in the school cafeteria. How many students bring their lunch? What percent of the students bring their lunch from home? How many students bring their lunch from home?

    asked by mon
  157. Math

    Jody deposited $65 into her savings account. The next day, she withdrew $24. how much of her deposit remains in the account?

    asked by Rachel
  158. chemistry

    A certain volume of a gas at 298kelvin is heated such that its volume and pressure are now four times their original value.What is the new tewperature?

    asked by blessing
  159. English

    I am writing a paper for my research class and I am not sure I am using the right word in the sentence below. (This can include mental, physical, and emotional abuse that any member of a family conflicts on to another member of the family.) I am not sure

    asked by AT
  160. Math

    A rectangular box has a length of 12 inches and a width 4 inches. The length of the three-dimensional diagonal of the box is 14 inches. What is the height of the box?

    asked by Serena
  161. science

    An object with a mass of 21 kilograms is lifted through a distance of 7 meters. How much work is done A. 147j B.703n c.15,625N

    asked by Anonymous
  162. math

    1.The land on Earth’s surface is represented by the seven continents. Europe has 77% of the dry land while Africa has 20%. North America has 4/25 and Antarctica has 1/10 of the dry land. What fractional amount of the dry land is contained within the

    asked by SammySam
  163. math

    If 3 hexagons and 4 trapezoids cost 200 in total what of is the cost of each piece alone?

    asked by aileen
  164. Algebra II

    How do you graph the function y=x^2-4 and how is the graph a translation of f(x)=x^2

    asked by Aderiye
  165. Math

    there are 8 students auditioning for a play and there are 56 possible outcomes. How many roles are there?

    asked by Susan
  166. math

    solve for d if ddd base 5 = 124

    asked by lou
  167. scienceheat from burning fuel warms the walls of t

    Heat from burning fuel warms the walls of the firebox section of the furnace in A.a hot heating system B.an evaporation system c. a compressor compartment

    asked by Anonymous
  168. Physics 112

    Moving a charge from point A, where the potential is 370V , to point B, where the potential is 190V , takes 4.1×10−4J of work. Part A What is the value of the charge?

    asked by Phil
  169. physics

    Wavelength in a Closed Column Here is the prompt: We place a speaker near the top of a drinking glass. The speaker emits sound waves with a frequency of 3.75 kHz. The glass is 14.1 cm deep. As I pour water into the glass, I find that at certain levels the

    asked by David
  170. Math help

    How would you solve these systems? I need help 1. X=3 2x-4y=5 2. X=3 4y=2x+18 3. Y=3 4y=2x+18

    asked by Anonymous
  171. chemistry

    How many \({\rm m}^{3}\) are in 7.40 \({rm cm}^{3}\)?

    asked by Anonymous
  172. 2nd Order linear ODEs

    I'm having trouble solving this problem: For the equation x^(2)y′′ - xy′ = 0 , find two solutions, show that they are linearly independent and find the general solution. Hint: Try y = x^(r). I divided the equation by x^(2) first to simplify it, and

    asked by Student
  173. math

    chip worked at the animal shelter for 6 hours each week for several weeks. he worked for a total of 42 hours. which of the following can be used to find the number of weeks chip worked at the animal shelter?

    asked by renan
  174. physics

    A)A ball is tossed from an upper-story window of a building. The ball is given an initial velocity of 8.15 m/s at an angle of 19.0o below the horizontal. It strikes the ground 2.50 s later. How far horizontally from the base of the building does the ball

    asked by Teddy
  175. math

    mr. Jackson has 20 quarters. if he gives 4 quarters to each of his children, how many children does mr. Jackson have?

    asked by renan
  176. physics

    A basket weighing 0.3kg is suspended from two ropes which are tied to a horizontal beam. The rope on the left is at an angle of 63° and the rope on the right is at an angle of 32° with respect to the beam. What mass of rocks could be placed in the bucket

    asked by irvin
  177. physics

    A stream of water strikes a stationary turbine blade horizontally, as the drawing illustrates. The incident water stream has a velocity of + 17.4 m/s, while the exiting water stream has a velocity of – 15.0 m/s. The mass of water per second that strikes

    asked by ben
  178. physics

    A car is stopped at a set of traffic lights. It takes off, accelerating at 4.5m/s2 until it is travelling at 60km/h. It maintains this velocity for 3 minutes before braking to a halt over 60m at another set of traffic lights. How far has the car travelled

    asked by irvin
  179. business mathematics

    Check My Work (No more tries available) The Book Nook makes four times as much revenue on paperback books as on hardcover books. If last month's sales totaled $124,300, how much was sold of each type book?

    asked by charlene
  180. physics

    This question is roughly based on some historical data from tropical cyclone Clare which crossed the WA coast near Dampier in January 2006. It started off as a tropical low north of the Northern Territory and was upgraded to tropical cyclone intensity at 8

    asked by irvin
  181. physics

    A stream of water strikes a stationary turbine blade horizontally, as the drawing illustrates. The incident water stream has a velocity of + 17.4 m/s, while the exiting water stream has a velocity of – 15.0 m/s. The mass of water per second that strikes

    asked by ben
  182. Math

    When you subtract 2 from a number, double the difference, and then add 7 you get 57. What is the number? And any explanation. Thank you

    asked by Ron jarsden
  183. math

    rene put 2 blue marbles, 2 green marbles, 2 red marbles and 2 white marbles in a bag, if Rene takes 1 marble out of the bag without looking, what is the probability of rene drawing a blue marble?

    asked by Larry
  184. Maths

    if the 29th term of arithmetic series is double of 19th term then find the 9th term.

    asked by Arpan
  185. Biology- Scientific Method

    An experimenter sets out to find out how many hours of sleep a dog needs in order to catch the highest number of balls without a bounce. To test this the experimenter uses 5 dogs in the experiment and allows each dog to sleep a predetermined amount of

    asked by Emily
  186. math

    If 3 hexagons and 4 trapezoids cost 200 in total what of is the cost of each piece alone?

    asked by aileen
  187. Physics

    plz any one these are some mcqs i am preparing for a test i m not sure with the answers of these mcqs this is not a homework not an online course exam so feel free to answer these thankx MCQS 01. Changes of equal magnitude are separated by some distance.

    asked by Sania
  188. chemistry

    How to do this equation!? Ok if you have 0.125g of copper at 23ºC. How much energy is needed to convert this copper to a temperature of 455ºC?

    asked by Anonymous
  189. pre cal

    f(x)=2x^2+12x-6 what is the min or max value ?

    asked by Holly
  190. Math

    A rectangular yard measuring 30ft by 35ft is bordered (and surrounded) by a fence. Inside, a walk that is 4ft wide goes all the way along the fence. Find the area of this walk

    asked by John
  191. physics

    A stream of water strikes a stationary turbine blade horizontally, as the drawing illustrates. The incident water stream has a velocity of + 17.4 m/s, while the exiting water stream has a velocity of – 15.0 m/s. The mass of water per second that strikes

    asked by ben
  192. english

    Need answers for these about "A Modest Proposal" PLEASE 2. Type of Satire? Horatian or Juvenalian 4. Fiction or non-fiction? 5. Problem = 6. Solution =

    asked by McKale
  193. health

    Do you think that the HIPAA has been effective?

    asked by susan
  194. Engineering science N4

    A ship is 100km north-west of cape town harbour and it sails directly north at a velocity of 30km/h in 8 hours.calculate its resultant speed with reference to the cape town harbour in magnitude and direction.

    asked by Mike
  195. math

    If 3 hexagons and 4 trapezoids cost 200 in total what of is the cost of each piece alone?

    asked by aileen
  196. Engineering science N4

    Calculate the angle of projection of a projectile in order to hit a target 12km away.the initial velocity is 700m/s ant the time of the flight is 80seconds.

    asked by Mike
  197. Math palette of problems

    If 2/9 gallon of water fills a bucket 3/5 full, how many gallons of water are needed to fill the bucket?

    asked by Madi
  198. Algebra

    How do I identify an exponential growth/decay function on a graph? I'm assuming that if the curve moves from left to right, upwards, it is growth, and if it moves left to right, downwards, then it is decay. Please tell me whether this reasoning is right or

    asked by Anonymous
  199. math

    gail is cooking a healthy snack. she adds 2/3 cup of raisins and 6/7 cup of peanuts. Estimate the total amount that gail adds.

    asked by madison
  200. Civics

    What role do precedents play in our legal system? Help would be appreciated!! :-)

    asked by Unknown
  201. GEOMETRY MIDPOINT FORMULA

    If a line is extended from A (2,3) through B ( -2, 0 ) to a point so that AC = 4ab Find the coordinates of C Please help thanks so much

    asked by Joy
  202. English

    Can you please give me the answers for the blanks? these are about "A Modest Proposal" 7. Advantages to his problem= (1)_______ (2)gives poor a valuable commodity (3) enlarge treasury or stimulate the economy 8. Speaker thinks reader objections would be

    asked by McKale
  203. statistics for managers

    Several statistical tests have a way to measure effect size. What is this, and when might you want to use it in looking at results from these tests on job related data?

    asked by Anonymous
  204. Math

    Two minor league basebal players got a total of 396 hits. Washington has 8 more hits than sanchez. Find the number of hits for each player. Please help!

    asked by Sam