Questions Asked on
October 8, 2010

  1. chemistry

    Calcium carbonate CaCO3 reacts with stomach acid (HCl, hydrochloric acid) according to the following equation: CaCO3(s)+2HCl(aq)->CaCl2(aq)+H2O(l)+CO2(g) Tums, an antacid, contains CaCO3. If Tums is added to 35.0 mL of 0.300 M HCl,how many grams of CO2 gas

    asked by Dana
  2. Physics

    A bullet of mass 1.9×10−3 kg embeds itself in a wooden block with mass 0.987 kg, which then compresses a spring (k = 120 N/m) by a distance 3.5×10−2 m before coming to rest. The coefficient of kinetic friction between the block and table is 0.42.

    asked by Bartholomew
  3. Chemistry

    Complete and balance each of the following equations for gas-evolution reactions. HNO3(aq) + Li2S produces ? Express your answer as a chemical equation. Identify all of the phases in your answer.

    asked by Anonymous
  4. physics

    an anti aircraft shell is fired vertically upward with a muzzle velocity of 200 m/sec. Compute theinstantaneous velocities at the ends of 30 & 50 seconds.

    asked by Rita
  5. Statistics

    A multiple choice test consists of 60 questions. Each question has 4 possible answers of which one is correct. If all answers are random guesses, estimate the probability of getting at least 20% correct? Trouble with deciding p, n, q, and P (X)

    asked by Lori
  6. social studies

    An interest group that focuses on policy benefits for senior citizens would be an example of a(n) a. philosophical interest group. b. ideological group. c. professional group. d. business group. e. single issue group. Is it B? If no why

    asked by Anonymous
  7. Math

    Given any right triangle with an acute angle theta, a) Explain why csc theta is always greater than or equal to 1 b) Explain why cos theta is always less than or equal to 1

    asked by Emily
  8. CHEM- FP

    camphor melts at 179.8 degrees, and it has a particularly high freezing point depression constant.(kf=40 degrees/m). when 0.186g of an organic substance of an unknown molar mass is dissolved in 22.01g of liquid camphor, the freezing point of the mixture is

    asked by lucylu
  9. chemistry

    express liquid pentanol and gaseous oxygen as a chemical reaction

    asked by bob
  10. social studies

    1. On-the-scene coverage of a natural disaster is an example of the press’s role of a. watchdog. b. signaler. c. partisan advocate. d. common-carrier. e. interpreter. 2. The news media are usually guided by events that a. are timely. b. affect large

    asked by Anonymous
  11. maths

    parents donated fudge for the fund raiser for your classroom. 40 pounds of chocolate fudge sold for $2.15 per pound and vanilla fudge sold for $1.90 per pound. your class made $158.20. how many pounds of fudge were sold?

    asked by pakeech
  12. Physics

    (1) A bullet of mass 1.9×10−3 kg embeds itself in a wooden block with mass 0.987 kg, which then compresses a spring (k = 120 N/m) by a distance 3.5×10−2 m before coming to rest. The coefficient of kinetic friction between the block and table is 0.42.

    asked by Fred
  13. social studies

    Members of the _____ generate more mail to Congress than any other group. a. NRA b. ACLU c. NAACP d. AARP e. NEA I cannot find the answer for this, please help

    asked by Anonymous
  14. liz

    You build a box that is 4 feet long, 5 feet wide, and 8 feet high. The distance from the top left front corner to the top right back corner is ______. I tried a²= 4² + 5² a²= 41 d² = 41 + 8² d²= 105 d=+- 10.25 is this right?

    asked by math
  15. physics

    a 10-kg bos slides down a frictionless ramp with acceleration 3.6 m/s calculate the weight anlge? f ?

    asked by Bolo
  16. English 2

    2. The overall message of "To Every Thing There Is A Season" is a. every human emotion and activity has an appropriate time in life b. life is a meaningless cycle of pleasure and pain c. humans have been given power over nature, and they should use it

    asked by mysterychicken
  17. Physics

    A plane dives at 37° to the horizontal and releases a package at an altitude of 380m. If the load is in the air for 4s, find: a) the speed of the plane when it released the package; b) the horizontal distance traveled by the package after it is released.

    asked by applebottom
  18. Physics

    A ball is thrown horizontally at 15 m/s from a clifftop 70 m above the sea level. Find: a) the time to land; s b) the angle at which it hits the water; ° below the horizontal c) the speed at which it hits the water. m/s

    asked by applebottom
  19. 8th grade

    Who was influenced negatively by the southern code of behaviour in the autobiography of miss jane pittman, and how?

    asked by Riya
  20. chemistry

    A 25g sample of a compound composed of Carbon, Hydrogen, and Oxygen was combusted. 55grams of Carbon Dioxide and 30 grams of water were collected. A) What is the empirical formula of the compound? B) If the compound has a molar mass of 120g what is the

    asked by Olga
  21. chemistry

    enzymes and substrates overall reaction: S -> P step 1: E + S -> ES fast step 2: ES -> E + S fast step 3: ES -> E + P slow what is the order of the reaction IN E and what is the order of reaction in S?

    asked by csb
  22. physics

    A rock is tossed straight up with a velocity of 34.0 m/s. When it returns, it falls into a hole 17.3 m deep. What is the rock's velocity as it hits the bottom of the hole? How long is the rock in the air, from the instant it is released until it hits the

    asked by Andres
  23. science

    a weightlifter raises a 200-kg barbell with an acceleration of 3 m/s. How much force does the weightlifter use to raise the barb?

    asked by anoynomous
  24. Chemistry

    One mole of H2O(g) at 1.00 atm and 100.°C occupies a volume of 30.6 L. When one mole of H2O(g) is condensed to one mole of H2O(l) at 1.00 atm and 100.°C, 40.66 kJ of heat is released. If the density of H2O(l) at this temperature and pressure is 0.996

    asked by nicole
  25. physics

    The drawing shows a version of the loop-the-loop trick for a small car. If the car is given an initial speed of 4.5 m/s, what is the largest value that the radius r can have if the car is to remain in contact with the circular track at all times?

    asked by Jordan
  26. math

    After several drinks, a person has a blood alcohol level of 200 mg/dL (milligrams per deciliter). If the amount of alcohol in the blood decays exponentially, with one fourth being removed every hour, find the person's blood alcohol level after 2 hours.

    asked by liz
  27. algebra 1

    You deposit $70 in a savings account that pays an annual interest rate of 3%. How much simple interest would you earn in 2.5 years?

    asked by peaches
  28. Math 2nd grade

    Iam greater than 4 tens and less than 5 tens.I have 9 ones.What number am I?

    asked by Singh
  29. math

    Compute the number of vinyl tiles, measuring 8 in each side, needed to tile a kitchen measuring 24ft by 18ft. Area of kitchen:25X18=432 Area each tilein (feet):.667X.667=.44 432/.44=972 tiles Is my work correct?

    asked by Linda
  30. social studies

    write a paragraph describing the location of the New York City on the map of the New York State using compass rose

    asked by tim
  31. CHEM - mole fractions

    the vapour pressure of pure water at 110 degrees is 142.7kpa. a solution of ethylene glycol and water has a vapour pressure of 101.3kpa at 110 degrees. assuming that raoults law is obeyed, what is the mole fraction of ethylene glycol in the solution? I get

    asked by lucylu
  32. physics

    A small, 300g cart is moving at 1.60m/s on an air track when it collides with a larger, 2.00kg cart at rest. After the collision, the small cart recoils at 0.820m/s. What is the speed of the large cart after the collision?

    asked by mike
  33. Social Studies

    Please check my answer 1. The U.S. federal system affects the party system by a. favoring the creation of parties organized chiefly at the statewide level. b. hindering the creation of strong party organizations organized from the top down. c. encouraging

    asked by kenji
  34. Physics

    A steel ball is dropped from a building's roof and passes a window, taking 0.13 s to fall from the top to the bottom of the window, a distance of 1.20 m. It then falls to a sidewalk and bounces back past the window, moving from bottom to top in 0.13 s.

    asked by monnie
  35. English

    Can you please check the following sentences, please? Thank you. 1) Shylock is worried about his daughter going away with Antonio but he’s more concerned about the money she has cost him. 2)Antonio suggests Shylock should pay a fine to the court and give

    asked by Franco
  36. Finance

    Assume AirJet Best Parts has also a preferred stock issue. The most recent dividend per share paid on the stock was also $1.50, the same as the common stock. Which one would you think has a higher price, the preferred stock or the current stock?

    asked by Jas
  37. Pre-Cal

    I've been trying to work this problem out for the past week and still havent managed to get to the answer. jeans unlimited sold 6000 pairs of jeans in october at an average of 44$ each. The company president decides that she must increase the company's

    asked by Chloe
  38. chemistry

    A 200 mL sample of 1.0 M nitric acid is added to 1.0 M water. What is the resulting pH?

    asked by Anonymous
  39. math

    find an equation of the line containing the given pair of points. Use function notation to write the equation. (5/7,10/14) and (-1/7,13/14) f(x)

    asked by kate
  40. Finance

    Using the dividend growth model and assuming a dividend growth rate of 5%, what is the rate of return for one of three key competitors?Please help me.

    asked by Suman
  41. physics

    (a)block A weigh 60N. the coefficient of static friction between the block and the surface on which it rests is 0.25. the weight W is 12N and the system is at equilibrium. find the friction force exerted on block A. (b)find the maximum weight W for which

    asked by andrew
  42. Physics

    I need help with this question...A skateboarder, starting from rest, rolls down a 12.0-m ramp. When she arrives at the bottom of the ramp her speed is 8.90 m/s. (a) Determine the magnitude of her acceleration, assumed to be constanIf the ramp is inclined

    asked by Nancy
  43. english

    In ultramarathon man, who is Rebecca Sigmon? can you help me ?

    asked by natalie
  44. Caring for school age childres

    The formation of children's core values is most strongly influenced by

    asked by Lina
  45. chemistry

    Which solutions are acidic? (Assume all solutions are at 25°C. Kw = 1.0 x 10-14 at 25°C.) A. A solution with [H+] = 9.4 x 10-6 B. A solution with [H+] = 5.5 x 10-10 C. A solution with pH = 6.1 D. A solution with [OH-] = 6.4 x 10-7 E. A solution with

    asked by Ceci
  46. Finance

    6. Your aunt offers you a choice of $60,000 in 40 years or $850 today. If money is discounted at 11 percent, which should you choose?

    asked by Anonymous
  47. physics

    A car that weighs 1.5 × 10^4 N is initially moving at a speed of 43 km/h when the brakes are applied and the car is brought to a stop in 16 m. Assuming that the force that stops the car is constant, find (a) the magnitude of that force and (b) the time

    asked by monnie
  48. Physics

    I really need help... You are on a treasure hunt and your map says "Walk due west for 52 paces, then walk 29.0° north of west for 39 paces, and finally walk due north for 25 paces." What is the magnitude of the component of your displacement in the

    asked by Angie
  49. Physical science

    A 85kg box slides along the floor at 85km/hour. What is the boxes kinetic energy

    asked by Anonymous
  50. english

    are these adverbs? fast moving important details finely tuned serious danger

    asked by Anonymous
  51. physics

    A particle that hangs from a spring oscillates with an angular frequency ω. The spring-particle system is suspended from the ceiling of an elevator car and hangs motionless (relative to the elevator car) as the car descends at a constant speed v. The car

    asked by flame
  52. Chemistry

    A certain radioactive element has a half life of 1 h. If you start with a 1-g sample of the element at noon, how much is left at 3:00 PM? At 6:00PM? At 10:00 PM?

    asked by Jennifer
  53. english

    How many categories are listed under Graphic Novels? can you help me please?

    asked by natalie
  54. physics

    Need help very much appreciated....Thanks....A skateboarder shoots off a ramp with a velocity of 6.5 m/s, directed at an angle of 62° above the horizontal. The end of the ramp is 1.4 m above the ground. Let the x axis be parallel to the ground, the +y

    asked by Anonymous
  55. math

    please help ive look at this question for hours and got no where. find the radii of the 2 circles which have their centre at the origin and which touch the circle x^2 + y^2 - 8x - 6y + 21 = 0 ?? thanks for the help

    asked by Pat
  56. physics

    Zach, whose mass is 69 kg, is in an elevator descending at 10 m/s. The elevator takes 2.5 s to brake to a stop at the first floor. (a) What is Zach's apparent weight before the elevator starts braking? 1 N

    asked by Anonymous
  57. physics

    A skateboarder, starting from rest, rolls down a 14.0-m ramp. When she arrives at the bottom of the ramp her speed is 8.00 m/s. (a) Determine the magnitude of her acceleration, assumed to be constant.

    asked by Anonymous
  58. CRJS 105

    Please answer the following questions and requirements to write your 4–6-page paper. As you answer each question, you must provide support or evidence that will enhance and empirically prove your answers. Academic criminal justice articles or real-life

    asked by meeee
  59. physics

    If a spring has a constant of 20N/m how much potential energy does it store if it is compressed 2m in joules?

    asked by chi
  60. math

    I have 2 problems that I need solved. Can someone please help me? t+36t=0 second problem T^2-7t+12=0 Can you show me the steps please?

    asked by barbHELP!!!!
  61. Physics Help!!

    Suppose the kinetic energy of an object moving is 15 J and the potential energy is 25 J at some point in time. Then I measure the potential energy some time later and find it to be 10 J. What is the new kinetic energy?

    asked by Liz
  62. math

    what is 2209 in its simple

    asked by rkwefk
  63. Physics

    If I hold a rock at some height and tell you the potential energy there is 25 J, what is it's kinetic energy immediately before it hits the ground?

    asked by Lena
  64. Physics

    A cat chases a mouse across a 1.1 m high table. The mouse steps out of the way, and the cat slides off the table and strikes the floor 1.2 m from the edge of the table. The acceleration of gravity is 9.81 m/s^2.What was the cat’s speed when it slid off

    asked by unknown
  65. Health

    Describe one of the contemporary models of health from another country and explain its strengths and weaknesses

    asked by Brianna
  66. English

    1. Maybe we can get together on the weekend. 2. Maybe we can get together on weekend. 3. Maybe we can get together on weekends. 4. Maybe we can get together on a weekend. (Which ones are grammatical?)

    asked by rfvv
  67. us history

    Since the Constitution has been ratified, how many states have been admitted to the union?

    asked by Andrew
  68. novelist plus/library media center

    Im ultramarathon Man,who is Rebecca Sigmon?

    asked by natalie
  69. pccs

    how do protons, electrons, and neutrons difer in mass, change, and location?

    asked by carlos
  70. chemistry

    how many milliliters of 6.00 M HCl are required to react with 60.0 ml of 1.96 M Al(OH)3? Al(OH)3(s)+3HCl(aq)-->AlCl3(aq)+3H2)(aq)

    asked by Samantha
  71. chemistry

    .70 L of a buffer solution that is 0.120 M in NH3 and 0.450 M in NH4Cl are diluted to 5.80 L with distilled water. What is the pH of the buffer? Kb of NH3 = 1.8 x 10^-5

    asked by kim
  72. Social Studies

    Outside lobbying does not include the use of a. developing and maintaining close contacts with policymakers. b. campaign contributions to legislators who favor the interest group. c. cultivating favorable coverage from the news media. d. targeting group

    asked by Anonymous
  73. physics

    Aship leaves its home port expecting to travel to a port 400 km due south. Before it moves even 1 km, a severe storm blows it 150 km due east. In what direction must it travel to reach its destination?

    asked by Alivia
  74. library media center

    On EBSCO .NOVELIST PLUS : IN Ultramarathon MAN ,who is REBECCA Sigmon ? That how is the question posted.Thank you for your help.

    asked by natalie
  75. maths

    Using the numbers 5, 6, 7, 8 and 9 in order from smallest to largest togther with one of each of the symbols +, -, x, / and two pairs of braces to make a calculation with an answer of 25/8

    asked by steven buckley
  76. physics

    You are piloting a small plane, and you want to reach an airport 450 km due south in 2.0 hours. A wind is blowing from the west at 75 km/h.What heading and airspeed should you choose to reach your destination in time?

    asked by alivia
  77. math

    please help ive look at this question for hours and got no where. find the radii of the 2 circles which have their centre at the origin and which touch the circle x^2 + y^2 - 8x - 6y + 21 = 0 ?? thanks for the help

    asked by Pat
  78. math

    The statement is If a number is divisible by 2 and by 3, then it is divisible by 6 and vice versa. Is this statement true? Give an example or counterexample. I believe it is true but am stuck on the counterexample/example.

    asked by m
  79. math

    find the equation of the line pasiing throught the given point. Use function notation to write the equation. (-2,11)and(1,-4) f(x)

    asked by kelly
  80. physics

    Larry leaves home at 1:01 and runs at a constant speed to the lamppost. He reaches the lamppost at 1:10, immediately turns, and runs to the tree. Larry arrives at the tree at 1:26. What is Larry's average velocity during his trip from home to the lamppost,

    asked by Andres
  81. algebra

    Your friend has a cube of gold. You have a cube of gold that weighs twice as much. Your cube is 1.26as long as your friends, and it has 1.587 times the surface area. You can imagine how this would work with a spherical diamond, so we won't repeat that part

    asked by chris
  82. statistics

    Use of normal distribution to approximate the desired probability. Find the probability of getting at least 30 fives in 200 tosses of a fair 6 sided die.

    asked by Lori
  83. Statistics

    Find an example of application of Normal Distribution (or approximately Normal Distribution) in your workplace or business (or any other business that you are familiar with). Prove that the variable has the characteristics of a Normal Distribution. Recall

    asked by Kathy
  84. Physics-Mechanics

    A poorly designed playground slide begins with a straight section and ends with a circular arc as shown in the figure below. img716.imageshack.us/img716/8381/25746193.jpg A child starts at point P and slides down both sections of the slide. At some point

    asked by Genevieve
  85. math

    Let P be the point (p,q) and L the line y = m x + b. It is not necessary, but if you like you may assume that P lies below the line L. All your answers below should be algebraic expressions in terms of m, b, p and q. The slope of L is . The slope of a line

    asked by amy
  86. math

    use the euler diagram to determine if the syllogism is valid or invalid 1. Football and studying don't mix Don is football player. therefore: Don does not study

    asked by natacha
  87. health information

    I am doing a research paper on ethical opinions on computer confidentiality. It tells me to go to AMA site and find my sources. I have went there and cant find the correct ones to use i guess. Can some please help.

    asked by sondra
  88. physics

    A spring gun launches a ball horizontally from 1.3 m above the floor. the ball strikes the floor 2.2m away, measured horizontally. Calculate A .. the time the ball is flight B... the vertical component of its velocity at the time it strikes the floor C....

    asked by Bolo
  89. chemistry

    What mass of hydrochloric acid (in grams) can be neutralized by 2.7 of sodium bicarbonate?

    asked by Anonymous
  90. Chemistry

    When 112 g of water at a temperature of 22.5°C is mixed with 65.1 g of water at an unknown temperature, the final temperature of the resulting mixture is 46.3°C. What was the initial temperature of the second sample of water?

    asked by Noelle
  91. physics

    A diver running 2.0 m/s dives outhorizontally from an edge of a vertical cliff and 2.6 s later reaches the water below. How high was the cliff? How far from its base did the diver hit the water?

    asked by Moni
  92. english

    What is the difference between definate and indefinate articles

    asked by Jannie
  93. Earth Science

    Where in the Atlantic Ocean would you expect surface water to sink and initiate a subsurface flow. List the reason(s) for your choice(s).

    asked by Anonymous
  94. Physics

    The motor of a ski boat generates an average power of 7.30 104 W when the boat is moving at a constant speed of 10 m/s. When the boat is pulling a skier at the same speed, the engine must generate an average power of 8.40 104 W. What is the tension in the

    asked by Tzana
  95. physics

    A 10-KG block is pulled along a rough horizontal floor by a 12-N force acting at a 30 degrees angle with respect to the horizontal. The block accelerates at 0.1 m/s2. Calculate A....... the weight of the block B...... the force of friction acting on the

    asked by Bolo
  96. english

    from Sinners in the Hands of an Angry God- according to the sermon, what keeps sinners out of the fiery "pit of hell"?

    asked by elana
  97. Foreign Languges

    This is some Greek and Latin root words for my 6th grade gifted homework. Whats the difference between medicus and medicinal?

    asked by Jake
  98. physic

    state the resultant force actin on a vehicle travelling a a constant speed of120km/h on a straight sectio of the road.

    asked by chelsea
  99. english

    from Sinners in the Hands of an Angry God- what references in the sermon reveal Edward's implicit philosophical beliefs about divine mercy?

    asked by elana
  100. computers

    i don't understand the formula for caluculating e^x in order to write the code(java)

    asked by Gina
  101. math

    6+6/6*6+6=24 where do I put the parentheses to make it equal 24?

    asked by joshua
  102. math

    4.297 times 10 times 8 in standard notation

    asked by Anonymous
  103. math

    At a production level of 1400 items, the total cost is $7250 and the marginal cost is $25. Use this information to estimate the costs of producing the following number of items. Your answers should be whole numbers. a) 1401 items . b) 1399 items . c) 1450

    asked by ana
  104. Geometry

    if the measure of two pairs of supplementary angles are added together, then the sum will equal 360 degree. true or false? then write the converse and is it true or false?

    asked by Skylar
  105. math

    The following table gives the cost and revenue, in dollars, for different production levels, q. Answer the questions below. q 0 100 200 300 400 500 600 R(q) 0 450 900 1350 1800 2250 2700 C(q) 670 865 990 1095 1255 1820 2590 1. The fixed costs are dollars

    asked by ana
  106. math

    Let C(q) represent the cost, R(q) the revenue, and π(q) the total profit, in dollars, of producing q items. a) If C′(67) = 65 and R′(67) = 86, approximately how much profit is earned by item number 68? b) If C′(149) = 120 and R′(149) = 98,

    asked by molly
  107. math

    A new software company wants to start selling DVDs with their product. The manager notices that when the price for a DVD is 20 dollars, the company sells 139 units per week. When the price is 34 dollars, the number of DVDs sold decreases to 91 units per

    asked by kim
  108. math

    where would the parentheses go in this problem 6*6+6*6-6=426

    asked by joshua
  109. 5th grade math

    points that lie o the same line are called collinear points. The points H,S,D,K,L, and D are collinear. use the following information to locate them on the line and label the points accordingly. KS + SB =KB DH + HS =DS DH + Hk =DK points L and B are not

    asked by pat
  110. US History

    Need help with this please-- 28. Discuss how both the north and south defended their position on the question of secession by tracing the history of their arguments? Thanks -MC

    asked by mysterychicken
  111. Physics

    I have some questions regarding motion problems. If I have a ball at initial velocity of 50m/s at 35 degree angle, to find horizontal and vertical components, I do the following: Vertical is 50(sin35)=28.68-rounded to 29 Horizontal = 50 (cos

    asked by Katherine
  112. physics

    A man pulls a crate of mass 61.0 kg across a level floor. He pulls with a force of 178.0 N at an angle of 20.0� above the horizontal. When the crate is moving, the frictional force between the floor and the crate has a magnitude of 124.0 N. If the crate

    asked by julia
  113. essay

    can you help me to do my essay?

    asked by nora
  114. Chemistry

    Hello i have a few questions i need help with please, can you help me and thank you in advance..... What are covalent compounds usually formed between? I also have to fill in this sentence can you help.... They are formed by the _____________ of a

    asked by Paul
  115. science

    when brought to the surface of the moon will a mass have more or less weight than it did on the surface of earth or stay the same ?

    asked by Blaire
  116. science

    what reactants are added together to get copper nitrate!

    asked by jessica
  117. pre calc

    a roll of carpet is 9ft wide is 30 ft longer than a roll of carpet 15 ft wide. both rolls have the same area.find the dimemsions of each.

    asked by eric
  118. physicS

    A skier is gliding along at 6.93 m/s on horizontal, frictionless snow. He suddenly starts down a 17.2° incline. His speed at the bottom is 29.7 m/s. What is the length of the incline? i understand that the equation used is gH= change in (v^2)/2 so i plug

    asked by Jason
  119. Physics

    A spider crawling across a table leaps onto a magazine blocking its path. The initial velocity of the spider is 0.880 m/s at an angle of 36.8° above the table, and it lands on the magazine 0.0750 s after leaving the table. Ignore air resistance. How thick

    asked by Eric
  120. stats

    Between 11 P.M. and midnight on Thursday night, Mystery Pizza gets an average of 4.2 telephone orders per hour. Find the probability that,

    asked by mnmn
  121. math

    x 0 0.2 0.4 0.6 0.8 1 1.2 f(x) -2 4.16 4.32 4.48 4.64 7.8 7.96 estimate of f′′(0.6).

    asked by lin
  122. math

    is it possible to construct a triangle with these given side lengths 6,10,15

    asked by she
  123. ENGLISH

    THE SENTENCE,WHAT DID MARK GET FOR HIS BIRTHDAY?,GRAMMATICALLY RIGHT?

    asked by wences
  124. CALCULUS

    X2 + Y4 = 16 find the slopes of the 2 tangent lines to the curve from (5,1)

    asked by Michael
  125. physics

    A ship maneuvers to within 2500m of an island's 1800m high mountain peak and fires a projectile at an enemy ship 610m on the other side of the peak. If the ship shoots the projectile with an initial velocity of 250m/s at an angle of 75 degrees. how close

    asked by Sydney
  126. chemistry

    what is the net ionic equation for FeSO4 + KCl = FeCl2 + K2SO4?

    asked by Anonymous
  127. English

    Please give me ideas that will help to write 4 pages about this quote and its meaning Thank you. I picked two quotes but I like the first one, but I can't seem to translate it. The assignment is called Elaborating a Maxim. 1)"Be good and you will be

    asked by Lindah
  128. college

    f(x) = 4 e**(5 x); f(x)=!@#$%^&x

    asked by liz
  129. english

    Are all these examples of Imagery. Yes or No.. Thank You for your help. I think that they all are. But not to sure. She smiled a little through her face was drawn with pain and she bit her lip the smile fading. We got there quite quickly even though it was

    asked by Lauren
  130. Physics

    a 2000kg rocket has a rocket motor thast generates 3.0 x 10^5 N of thrust. What is the rockets initial upward acceleration ? ( I got 140ms^2)???? don't know if its right and then it says at an altitude of 5000m the rockets acceleration has increased to

    asked by Psuedia
  131. ryan

    You propose to build a space ship that allows the entire population of the United States (280 million) to leave earth. Your plans allocate an average space of 1,000(=10*10*10) cubic feet to each person. You space ship is going to have the shape of a

    asked by math word problem
  132. calculus

    9/5 log to the base 3 (x)= -7 solve for x

    asked by heather
  133. U.S. History

    true or false The Pueblo settled in the valley of Mexico during the 1200s and developed a thriving and sophisticated civilization.

    asked by Ashley
  134. Physics

    An arrow is launched vertically upward from a crossbow at 98.2 m/s. Ignoring air friction, what is its instantaneous acceleration 4.20 s into the flight?

    asked by Connie
  135. physics

    A bag of sand dropped by a would-be assassin from the roof of a building just misses Tough Tony, a gangster 2-m tall. The missile traverses the height of Tough Tony in 0.22 s, landing with a thud at his feet. How high was the building? Ignore friction.

    asked by hana
  136. History

    What difficulties did the Pilgrims encounter in their attempt to gain passage to the New World?

    asked by Andy
  137. Health and diseases

    Does culture have a relationship to health service utilization? Why?

    asked by kit
  138. English

    I'm working on a paper and was wondering if someone could point me to to some relevant passages/chapters/pages in James Fennimore Cooper's "The Prairie." How does Cooper depict Native American responses to white presence, settlement, and "encroachment"

    asked by Niko
  139. Physics

    a 10-kg bos slides down a frictionless ramp with acceleration 3.6 m/s calculate the weight....the angle and normal force

    asked by Bolo
  140. science

    how many cm are in 2.5m ?

    asked by mary
  141. Physics

    a 10-kg bos slides down a frictionless ramp with acceleration 3.6 m/s calculate the weight....the angle and normal force

    asked by Bolo
  142. Physics

    a 10-kg bos slides down a frictionless ramp with acceleration 3.6 m/s calculate the weight....the angle and normal force

    asked by Bolo
  143. geo

    what kind of depositional environment is shale formed in? i think its deep waters but i also need to know about how warm the water is and if its clear or dark ect. I cant find any info on this :(

    asked by Lena
  144. science

    how many hm are in 726.5 dm ?

    asked by jordan
  145. engineering

    Given a firm’s demand function, P = 24 - 0.5Q and the average cost function, AC = Q2 – 8Q + 36 + 3/Q, calculate the level of output Q which a) maximizes total revenue b) maximizes profits

    asked by vimal
  146. chemistry

    In what region of the electromagnetic spectrum is a wavelength of 4.89×10^−15 m

    asked by Jessie
  147. 6th grade

    I need to know what is the answer to this __ is a set of beliefs, values, and practicest that a group of people share.

    asked by Tyler
  148. Home maintenance

    Im researching some costs of different air conditioners and for warranty it said: one year full and five year sealed system warranty what does the five year sealed system warranty mean?

    asked by sara
  149. 3rd grade

    Elocution on topic 'An imaginary trip to the moon' Where I can find the same?

    asked by Aditi
  150. physics

    A 72.0 kg piece of a satellite left over from an explosion with zero orbital velocity in space falls from a distance of 190 above the surface of the earth down toward earth. It arrives with 29.5 Km (M="mega") kinetic energy on earth. How many MJ energy

    asked by marie
  151. word problem

    1. During 60mi of city driving, Jenna averaged 15mi/gal. She then drove 140mi on an expressway and averaged 25mi/gal for the entire 200mi. Find the average fuel consumption on the expressway.

    asked by Jessica
  152. hist

    who were the pilgrims and what did they believe?

    asked by Emily
  153. word problem

    2. The excursion boat Holiday travels 35km upstream and then back again in 4h 48min. If the speed of the Holiday in still water is 15km/h, what is the speed of the current?

    asked by Jessica
  154. word problem

    Members of the Computer Club were assessed equal amounts to raise $1200 to buy some software. When 8 new members joined, the per-member assessment was reduced by $7.50. What was the new size of the club?

    asked by Jessica
  155. language arts

    I need a list of verbs and one of adjectives I can use to make my story more interesting

    asked by sylvia
  156. physics

    A 715 kg object is lifted from the surface of the earth to a height of 880 kg above the surface of the earth. Calculate the increase in gravitational potential energy using the exact expression and compare it with the approximate expression using g=9.81.

    asked by jess
  157. russian foods and german foods

    please write me a 200 word essay before friday about russian food and drink and another one about german food and drink as i need lots if i don't i will get really badly tod of

    asked by anthonyboon
  158. math

    please can you answer this is all about sums and differences of rational algebraic expression...please i need it please ?this is the problem....3/5+4/5=? another x/3-y/3=? another is 7/a+2/a

    asked by jazmin
  159. math

    please is there anybody who can help me to do my assignment about sums and differences of a rational algebraic expression this is the problem.... x^2/x-y - y^2/x-y=? another is 3y/3y-5 - 5/3y-5=? another is 10/x-3 - 2x+9/x-3 + 5x-7/x-3 please answer

    asked by jazmin
  160. Geometry

    HOW DO YOU FIND THE HEIGHT OF A TRIANGLE??????! I am taking my SAT tomorrow morning, and i am freaking out because i haven't taken geometry for 5 years and i can't even remember how to find the height of a simple triangle! You have no idea how stressed out

    asked by Alexa
  161. math

    I am a 2 digit number I am a multiple of 6 My 10's digit is one 1/2 my units digit

    asked by Missy
  162. English 2

    How did the bible influence Michelangelo's imagination? Thanks -MC

    asked by mysterychicken
  163. algebra

    what is the answer to x-(6)=10?

    asked by kayla
  164. math

    can you answer this please about sums and differences of a rational algebraic expression this is the problem 5/x-7 - x-1/x-7 - 2+x/x-7 another is x+1/2 - x-2/3 + 2x-1/9 another is 2x+3/3 - 3x-1/2 + x-4/12

    asked by jazmin
  165. 6th grade

    how do you solve the math order of operations problem 8-(24/8)^2

    asked by sandra
  166. crim justice

    Create a personal code of ethics using one of the major ethical frameworks as a guide. You have already examined the professional code of ethics for a career field in criminal justice and analyzed ethical dilemmas for several fields; now compare your

    asked by tyrese
  167. math

    my topic is all about sums and differences of a rational algebraic expression this is the problem 3a/ax+ay + 2a/ax+ay another problem is a/4a+1 + 2/4a^2-7a-2 another is 3/a-b + 4/a+2b please anyone else who can answer my assignment please HELP ME!

    asked by jazmin
  168. math

    x+4/2 - x-1/5 + 2x+5/10 another is 3b/7a - a/2b + 3a^2-2b^2/14ab another is 2x-y/3x+y + 5x/2y this is an rational algebraic expression my topic is all about sums and differences of rational algebraic expression please answer this please HELP ME!

    asked by jazmin
  169. English

    I forgot to include the following statements. Thank you for your invaluable help. 1) He concludes that the real source of love lies in the eyes.The duke asks Shylock to have mercy/pity on Antonio (also: to be merciful to/pitiful to Antonio?) 1)If only he

    asked by Franco
  170. physics

    A boat initially traveling at 10 meters per second accelerates uniformly at the rate of 5.0 meters per second squared for 10 seconds. How far does the boat travel during this time?

    asked by Josh
  171. math

    sums and differences of rational algebraic expression please answer the following 9ab/cd^2 - 7ab/cd^2 another 3/x-1 - 2/x-1 another is 4x/4x-y - 2x/4x-y another is 3x/2y - 3x-2y/3x+2y another is 8/3x - 3/4x + 4/12x another is x-3/3x+1 + x+5/3x+1

    asked by jazmin
  172. 6th grade math

    in the order of operations equation 8-(24/8)^2 I Alex answered with 24/8= 3 3^2 = 9 8 - 9 = answer You cannot subtract 9 from 8. So how do you get the answer?

    asked by sandra
  173. Physics

    A neutron collides elastically with a helium nucleus (at rest initially) whose mass is four times that of the neutron. The helium nucleus is observed to move off at an angle of 45 degrees. The neutron's initial speed is 5.9×105 m/s. Determine the speeds

    asked by Bartholomew
  174. standardized testing

    As I am about to undertake taking the LSAT, could someone here offer an insight as to why this examination is often viewed as being more difficult than others like it?

    asked by legal eagle
  175. Business Law

    please can you help me in this: Ethical Systems Table Ethical Systems Table Directions: 1. Fill in brief definitions of each primary ethical theory. 2. Identify alternate names or variations of each ethical system based on your reading of the text and

    asked by Green grass
  176. math

    sums and differences of a rational algebraic expression 3/a + 2/ab + 1/abc another is 2x-1/6 + x+3/12 another is 2/a-b + 3/a+b another is 2a+b/a+b - 2a-b/a-b - 3a^2-b^2/a^2-b^2 another is 2x/2x^2+5x-3 + 5/x^2-9 another is x-3/12x^3-18x^2 - x+1/16x^2-24x

    asked by jazmin
  177. adult education

    All statements regarding debris issues and their impact are true EXCEPT: a. Congress questions continued debris problems. b. FEMA spends an extensive amount of time preparing for close-outs and addressing appeals. c. FEMA’s OIG, spends an inordinate

    asked by nono800
  178. physics

    A basketball is thrown at 45° to the horizontal. The hoop is located 4.5m away horizontally at a height of 1m above the point of release. What is the required initial speed?

    asked by applebottom
  179. 4th grade

    I am a number between 75 and 150 My tens digit is three times my ones digit The sum of my digits is 5 My hundreds digit and my ones digit are the same

    asked by Anonymous
  180. Physics

    A stone is dropped into a deep well and is heard to hit the water 2.95 s after being dropped. Determine the depth of the well.

    asked by Eli
  181. English 2

    Need help with this-- 'Now you're going to write a "wisdom" poem. Your poem can contain any kind of wisdom that inspires you-- it could even be humorous. Remember that poetry is communication through imagery, so even if the bit of wisdom you've chosen as

    asked by mysterychicken
  182. math

    sums and differences of rational algebraic expression answer the following 2x/x^2-2x-15 - x-2/3x^2+9 another is t/2rs^2 - 2r/3rst + 3s/30r^2t another is 3x/2x-3 - 2x/2x+3 + 3/4x^2-9 please answer this i need it tomorrow morning 3:00 please answer it i will

    asked by jazmin
  183. English

    Thank you for your last corrections. Here are some more sentences for you to check. 1) He suggests he should get (not make) a loan from a moneylender. 2)He should ask Shylock for the money. 3) The man who wants to marry her should do (perform??) a precise

    asked by Franco
  184. physics

    A skateboarder shoots off a ramp with a velocity of 6.5 m/s, directed at an angle of 63° above the horizontal. The end of the ramp is 1.5 m above the ground. Let the x axis be parallel to the ground, the +y direction be vertically upward, and take as the

    asked by Anonymous
  185. math

    A physician precribes tetracycline suspension for a patient who is to take 2 teaspoofuls four times a day for 4 days, then 1 teaspoonful four times a day for 2 days. How many mls of the suspension should be dispensed?

    asked by Anonymous
  186. Physics

    A 400 kg rocket sled can be accelerated at a constant rate from rest to 1600 km/h in 2.0 s. What is the magnitude of the required net force?

    asked by Joseph
  187. math

    please answer this my topic is all about sums and differences of rational algebraic expression 3/5 + 4/5 another is x/3 - y/3 another is 7/a + 2/a please answer it thanks!!!!!

    asked by jazmin
  188. Physics

    In a two-dimensional tug-of-war, Alex, Betty, and Charles pull horizontally on an automobile tire at the angles shown in the overhead view of the figure. The tire remains stationary in spite of the three pulls. Alex pulls with force of magnitude 226 N, and

    asked by Joseph
  189. math

    please answer this my topic is all about sums and differences of rational algebraic expression perform the indicated operation reduce answer to lowest term 3/5 + 4/5 another is x/3 - y/3 another is 7/a + 2/a please answer it thanks!!!!!

    asked by jazmin
  190. s.s

    where is 43' N, 79'W what city is it in

    asked by yuku
  191. math

    sums and differences of rational algebraic expression answer the following perform the indicated operation reduce answers to lowest term 2x/x^2-2x-15 - x-2/3x^2+9 another is t/2rs^2 - 2r/3rst + 3s/30r^2t another is 3x/2x-3 - 2x/2x+3 + 3/4x^2-9 please

    asked by jazmin
  192. physics

    A cheetah is hunting. Its prey runs for 3.21 s at a constant velocity of +8.36 m/s. Starting from rest, what constant acceleration must the cheetah maintain in order to run the same distance as its prey runs in the same time?

    asked by Jason
  193. MATH

    evaluate the numerical expression. you may use a calculator, being sure to follow the order of operations. Round the answer to the nearest whole number. 129+ 17*35/14 the 129 is separate from the fraction

    asked by m
  194. physics

    A speedboat starts from rest and accelerates at +1.99 m/s2 for 7.00 s. At the end of this time, the boat continues for an additional 6.00 s with an acceleration of +0.515 m/s2. Following this, the boat accelerates at -1.44 m/s2 for 8.00 s. What is the

    asked by Andres
  195. physics

    A bicyclist makes a trip that consists of three parts, each in the same direction (due north) along a straight road. During the first part, she rides for 22 minutes at an average speed of 6.80 m/s. During the second part, she rides for 36 minutes at an

    asked by Hillary
  196. physics

    you find it takes 200N of horizontal force to move an empty pickup truck along a level road at a speed of 2.4m/s. you then load the pickup truck and pump its tires so that its total weight increases by 42% while the coefficient of rolling friction

    asked by ashley
  197. physics

    A bicyclist makes a trip that consists of three parts, each in the same direction (due north) along a straight road. During the first part, she rides for 22 minutes at an average speed of 6.80 m/s. During the second part, she rides for 36 minutes at an

    asked by Hillary
  198. physics

    A speedboat starts from rest and accelerates at +1.99 m/s2 for 7.00 s. At the end of this time, the boat continues for an additional 6.00 s with an acceleration of +0.515 m/s2. Following this, the boat accelerates at -1.44 m/s2 for 8.00 s. What is the

    asked by Andres
  199. physics

    You have a friend who is an archer and she wants to know how fast the arrows leave her bow. You have her launch an arrow horizontally, 1.5 m above the ground, and find that the arrow lands 33 m away. What is the initial velocity of the arrow as it leaves

    asked by katelyn
  200. Physics

    Consider 3 layers of a wall. The first layer is plaster 1.0 cm thick(R=0.033 SI units), the second layer is fiberglass insulation 8.9 cm thick (r=2.97), and the outside layer is woodd 3.0 cm thick(0.33). What is the heat loss through one square meter of

    asked by Jessica
  201. health economics

    can someone just help with the basics of comparing and contrasting the goals of a producer versus a non-producer? Thanks!

    asked by Laura
  202. algebra

    this is probablt really simple, but for some reason I can't find out how to do it... solve for b; 2a/bc= 12 (show your work)

    asked by Ana
  203. physics college

    An antelope moving with constant acceleration covers the distance between two points 70.0 m apart in 7.00 s. Its speed as it passes the second point is 15.0 m/s. (a) What is its speed at the first point? (b) What is its acceleration? A car is stopped at a

    asked by meera
  204. math

    what is the formula to estimate the amount of fabric that is on a 2" cardboard core?

    asked by Anna
  205. tjc

    12/66 prime factor simplest from

    asked by mike
  206. chemistry

    A buffer solution is 1.00 M in NH3 and 1.10 M in NH4Cl. If 0.230 moles of NaOH are added to 1.00 L of the buffer, what is its pH? Assume the volume remains constant. Kb of NH3 = 1.8 multiplied by 10-5.

    asked by nick
  207. conputer literacy

    How is searching in a specific database, such as Ashford’s library, different than searching in

    asked by louise
  208. english

    John Leo's article,"when life imitates video"argure whether or not he makes a persuasive case that video games are responsible for the violence in today's society

    asked by purvi
  209. Science

    how many mountain lion species are there?

    asked by Robert
  210. chemistry

    What is the effect of the following on the separation of the mixture(hexane and toluene)? a. A soluble, nonvolatile impurity b. a decrease in barometric pressure c. an increase in barometric pressure d. rapid heating rate

    asked by Anonymous
  211. Finance

    What coupon rate should AirJet Best Parts set on its new bonds to sell them at par value?

    asked by Jas
  212. Physics

    The sun has a raduis of 6.96*10^8m and a surface temperature of 5780K. How much power is radiating?

    asked by Jessica
  213. Physics

    If i have ten grains of sand on a flat, 8x8 chessboard, randomly distributed, what is the probabilty that all ten are on the same square?

    asked by Jessica
  214. physics

    A projectile is shot at a 37 degree angle from the edge of a cliff h = 305 m above ground level with an initial speed of v0 = 125 m/s how much time will it take to hit the ground

    asked by memo