Questions Asked on
October 15, 2014

  1. Science

    A dog is trained to sit and shake hands. These traits are most likely A. Inherited B. Not inheited C. Not aquried D. Innate Is the answer B?

  2. chemistry

    1) Aqueous solutions of potassium sulfate and ammonium nitrate are mixed together. Which statement is correct? A) Both KNO3 and NH4SO4 precipitate from solution B) A gas is released C) NH4SO4 will precipitate from solution D) KNO3 will precipitate from

  3. Physics

    The pilot of an aircraft wishes to fly due west in a 50.0 km/h wind blowing toward the south. The speed of the aircraft in the absence of a wind is 228 km/h. a) How many degrees from west should the aircraft head? Let clockwise be positive. Answer in units

  4. Language Arts

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

  5. Chemistry

    What volume of CO2 gas is produced when 20 gm of 20% pure CaCO3 is completely heated?

  6. chemistry

    How many grams of NaOH are contained in 5.0 × 102 mL of a 0.77 M sodium hydroxide solution? The molar mass of NaOH is 40.0 g/mol.

  7. Science

    Chromosome pairs contain different versions of genes, which are called (fill in) My answer DNA Is that the correct answer?

  8. science

    Two spheres A and B of mass 6.0 kg and 7.3 kg respectively are separated by a distance of 0.65 m. (a) Calculate the magnitude of the gravitational force A exerts on B and B exerts on A.

  9. Chem

    choose the solvent below that would show the greatest boiling point elevation when used to make a 0.10m non electrolyte solution a.C6H6, Kb= 5.12 degree C/m b. CHCl3, Kb= 4.70 degree C/m c.CCl4, Kb= 29.9degree C/m d.CH3CH2OH, Kb= 1.99degree C/m

  10. Math

    Which of the following appears to be an irrational number? A. 0.404404440... B. 0.783783783... C. -4/15 D. 6 Is the answer A?

  11. Science

    To pass its traits on to the next generation, an organism must (Fill in blank) Answer choices alleles, chromosome, incomplete dominance, mitosis, codominance, centromere, DNA, diploid, reproduce, phenotype, meiosis, RNA Is the answer reproduce?

  12. Science

    A white mouse is crossed with a black mouse. All of the offspring were grey, The genes for fur color in mice show. Answer choices alleles, chromosome, incomplete dominance, mitosis, codominance, centromere, DNA, diploid, reproduce, phenotype, meiosis, RNA

  13. Science

    A cow that is heterzygous for the black coat allele is crossed with a bull that is homozygous for the red coat allele. Which of the following Punnett squares represents this cross? A. B B b Bb Bb b Bb Bb That's one punnett square B. B b B BB Bb b Bb bb

  14. Pre-Calc/Trig...

    Help me please. Which of the following accurately depicts the transformation of y=x^2 to the function shown below? y=5(x-2)^2+1 A. Shift 5 units right, stretch vertically by a factor of 2, then shift up 1 unit. B. Shift up 1 unit, stretch horizontally by a

  15. Language Arts

    Why does the author of"Making Tracks on Matt's"sometimes use the pronouns we and us when he is writing about the rovers? A. He and the rovers are on the same spacecraft. B. There are hundreds of people involved in the mission. C. He and his team identify

  16. Math

    Which number will have the same result, when rounded to the nearest ten or hundred? Is it 97, 118 and 5, 179 or 5,091?

  17. Science

    Genes are specific sections of (Fill in the blank) Answer choices alleles, chromosome, incomplete dominance, mitosis, codominance, centromere, DNA, diploid, reproduce, phenotype, meiosis, RNA Is the answer chromosome, or DN?

  18. Chemistry

    Calculate the mass of water having the same number of hydrogen atoms as are present in 32 gm of methane.

  19. Grammar

    In each sentence, underline the adjective clause and circle the word it modifies. (I have placed all ajective clauses and the words they modify in parenthesis.) 1. I didn't believe, standing on the bank of a (river) (which) was wide and swift, (that) (I)

  20. Math

    Express 0.72 as a fraction in simplest form. A. 72/100 B. 100/72 C. 36/50 D. 18/25 Is the answer D?

  21. Math

    3/4 of a puzzle in 7/8 hours What's the unit rate?

  22. Map to sacle

    The 17th hole at the famous St Andrews golf course is 420m in length. how long will it appear on a plan of course of scale 1:8000?

  23. Pre-Calc/Trig...

    Am I right? Consider the function y=x^2+5x-2. What would happen to the graph if (x - 3) was substituted in place of the x? A. The graph would shift up 3 units. B. The graph would shift down 3 units. C. The graph would shift 3 units to the right.

  24. 8th grade Math help

    PLEASE HELP!!! Anita hikes 7 miles due east and then 3 miles due north. Rounded to the nearest mile, what is the shortest distance from the starting point to the ending point? A. 4 B. 6 C. 8 D. 10 I think it's B. am i right?

  25. Social Studies

    1.How can a trade deficit actually increase the productivity of an economy? A) by causing people to save B) by building up a large amount owed C) by importing funds used for capital deepening ****** D) by importing goods for short–term use I think the

  26. Math

    What's 4.32(3.7 + 1.65) I have 5.35 so far. And I'm just making sure what the answer is for 4.32 x 5.35

  27. 7th grade LA

    Can you check the following? 1. I didn't know what time it was so I was very late to class indep = I didn't know what time it was indep = I was very late to class Ans: compound 2. I'll help you if you help me. indep = I'll help you dep = if you help me

  28. 6th grade math

    a diver's elevation is -30 feet relative to sea level. she dives down 12 feet. what is her elevation after the dive? a. 12 feet b. 18 feet c. -30 feet d. -42 feet

  29. Integral Calculus

    A force of 4 pounds is required to hold a spring stretched 0.1 feet beyond its natural length. How much work (in foot-pounds) is done in stretching the spring from its natural length to 0.6 feet beyond its natural length?

  30. Science

    In humans, having dimples is a dominant trat. In order for a child to have dimples A. at least one parent must not have dimples and pass on the recessive allele. B. both parents must not have dimples and pass on the recessive allele. C. both parents must

  31. Physics

    A 38.0-kg boy, riding a 2.37-kg skateboard at a velocity of +5.07 m/s across a level sidewalk, jumps forward to leap over a wall. Just after leaving contact with the board, the boy's velocity relative to the sidewalk is 6.06 m/s, 10.35° above the

  32. maths

    A circular ink blot grows at the rate of 2 cm per sec. Find the rate at which the radius is increasing after 28/11 sec.

  33. Science

    The process in which the chromosomes in sex cells are reduced by half is called Answer choicesalleles, chromosome, incomplete dominance, mitosis, codominance, centromere, DNA, diploid, reproduce, phenotype, meiosis, RNA Is the asnwer mitosis?

  34. Math

    What are the steps to show the quotient in simplest form? Be sure to include various key words. 0.000027 divided by 0.000009 My answer 0.000027 divided by 0.000009=3 Definition of a quotient The answer after you divide one number by another. The qutient in

  35. math

    Find three consecutive positive even integers such that four times the first decreased by the second is 12 more than twice the third.

  36. Chemistry

    How many numbers of oxygen molecules are present in 3 liters of CO2 at STP?

  37. français

    pourquoi les chercheurs et savants des pays d'Afrique émigrent ils vers les pays occidentaux?

  38. Math

    Which of the following appears to be an irrational number? A. 0.404404440... B. 0.783783783... C. -4/15 D. 6 Is the answer A?

  39. math

    What is AB x BC?

  40. Is My Pseudocode Correct? - Programming

    I am supposed to make a pseudocode for a fat gram calculator. These are the instructions: Design a program that asks for the number of fat grams and calories in a food item. Validate the input as follows: - Make sure the number of fat grams and calories

  41. 4th grade math

    mrs jacksin bought 6 gallons of juice for a party. each gallon has 16 cups. if 3 cups of juice were left over, how many cups did people drink at the party? Please help

  42. statistics

    show me Police academy acceptance exams to qualify for a police academy, applicants are given a test of physical fitness. the scores are norally distributed with a mean of 64 and standard deviation of 9. if only the top 20% of the applicants are selected

  43. History

    Acrostic poem using the words Valley Forge

  44. Science

    In order for a child to inherit a recessive genetic disease, like sickle cell anemia, healthy parents must both A. have the disease B. be homozygous for the mutated gene that causes the disease. C. be carries of the mutated gene that causes the disease D.

  45. Science

    A stuntman drives a motorcycle off a 350 m cliff going 70 mph. The angle of elevation of the cliff is 21 degree. He is hoping to make it across a 261 m wide river and land on a ledge 82 m high. Does he make it?

  46. history

    which was the main reason spain built missions along georgia's Barrier islands? A.for launching attacks. B.to spread christianity. C.for defensive. D.to trade with Native Americans.

  47. history

    what was the primary goal of Hernando de Soto as he explored the American southeast? A.to find gold B.to conquer land. C.to convert Native Americans. D. to develop trade partnerships.

  48. Analytical Chem

    The following electrochemical cell can be used to calculate the formation constant Kf for a metal and EDTA. The cell has a voltage of -0.262V. The right half cell contains a metal (M^2+) with a standard reduction potential of -0.236V. Calculate the Kf for

  49. Basic Statistics

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

  50. Math

    the amount of simple interest earned in a savings account varies directly with the amount of money in the savings account with the amount of money in the account. A certain bank offers a 2% savings rate write a direct variation equation for the amount of

  51. Statistics

    Find the area under the standard normal curve that lies between z = -2.09 and z = 1.98. Note: the graph may not be drawn to scale.

  52. physics

    If the cart starts at rest, determine an expression for the speed of the cart after it travels a distance d. Ignore friction. I have to use F (known magnitude), m, the angle and d for distance.

  53. physics

    A heavier mass m1 and a lighter mass m2 are 17.5 cm apart and experience a gravitational force of attraction that is 9.80 10-9 N in magnitude. The two masses have a combined value of 5.00 kg. Determine the value of each individual mass

  54. Grammar

    Underline the noun clause in each of the following sentences. Then identify the function by the clause. 9. Nguyen Thi Vinh's hope is (that life in her hometown has not changed too much). ---predicate noun. 10. I fear (that one day I'll be with the

  55. math

    The number 199,557 contains two sets of digits in which one digit is ten times as great as the other. What are the values of the digits in each set?

  56. Physics

    Please help! A young girl with mass 42.5kg is sliding on a horizontal, frictionless surface with an initial momentum that is due east and that has magnitude 94.0kg * (m/s) . Starting at 0s , a net force with magnitude F=( 8.10N/s )*t and direction due west

  57. BUS100

    THE APPROACH STEP OF SELLING PROCESS ATTEMPTS TO :

  58. math

    How long will it take a car 3m long travelling at 100km/h to overtake a truck 10m long travelling at 50km/h, if the car is 10m behind the truck

  59. Chemistry

    A compound containing boron and hydrogen has been synthesized. You perform two experiments to determine the molecular formula of the compound. A 0.492 g sample of the compound is burned in pure oxygen to produce B2O3 and 0.540 g of water. In the second

  60. Math

    5.235 - 0.88

  61. georgia history

    which factor best explains why native Americans were able to make permanent settlements? A.Native Americans began to cultivate plants for food . B.Native Americans began to create more complex tools and pottery. C.Native Americans discovered alternative

  62. physics

    You exert a force of a known magnitude F on a grocery cart of total mass m. The force you exert on the cart points at an angle θ below the horizontal. If the cart starts at rest, determine an expression for the speed of the cart after it travels a

  63. Language Arts

    While"We the people"and"Making Tracks on Mars are both nonfictional literature about specific topics, the author of"We the People"uses explanatory style, not informative. This sentence is an example of what kind of organizational pattern? A. chronological

  64. georgia history

    which best explains why archaeologists believe that Native Americans living during the Mississippian Period believed in some sort of afterlife? A.Tribal centers had churches and other symbols of worship. B.Legends of an afterlife were passed down from

  65. english

    Which is the correct pronunciation of machines? a. MACK-ines b. mack-EENZ c. MUH-sheenz d. muh-SHEENZ I think that it's either c or c.

  66. Science

    What is a muation? A. A mutation is a permanant change in the order of bases in the DNA. B. A mutation is a temporary change in the order of bases in the DNA. C. A mutation is a permanant change in the way a cell carries out mitosis. D. A mutation is a

  67. Grammar

    n each sentence, underline the adjective clause and circle the word it modifies. (I have placed all ajective clauses and the words they modify in parenthesis.) 1. I didn't believe, standing on the bank of a [river] (which was wide and swift), that I would

  68. Math

    A basketball team won 70% of the 30 games they played. How many games did they win?

  69. Math

    Estimate then record the product $53 times 4

  70. HISTORY

    Which factor BEST explains why Native Americans were able to make permanent settlements? A. native americans began to cultivate plants for food B. Native Americans began to create more complex tools and pottery C. Native Americans discovered alternative

  71. physics

    How far apart should two protons be if the electrical force of repulsion is equal to the weight (attraction to the earth) of one of the protons? (

  72. Physics

    Even when the head is held erect, as in the figure below, its center of mass is not directly over the principal point of support (the atlanto-occipital joint, point A). The muscles at the back of the neck should therefore exert a force to keep the head

  73. Statistics

    A university sends a monthly newsletter on health to its employees. One issue included a column called "What Is the Chance?" that said: Chance that you'll die in a car accident this year: 1 in 75. There are about 310 million people in the US. About 40000

  74. Math

    write each decimal as a percent: 1.07 35 0.003 0.0077 what do i do to convert the decimal into a percent??

  75. physics

    A typical cell membrane is 8.0 nm thick and has an electrical resistivity of 1.3 × 107Ω.m. (i) If the potential difference between the inner and outer surfaces of a cell membrane is 75 mV, how much current flows through a square area of membrane on a

  76. physics... PLEASE HELP

    In a particle accelerator, a proton reaches an acceleration of 9.0 × 1013 m/s2. The mass of a proton is 1.7 × 10 -27 kg. What is the force on the proton

  77. Math 112

    On your first two exams, your grades are 86% and 88% x=86 and y=88 What must you get on the third exam to have an average of 90%?

  78. Math

    A plane takes off from a local airport. It travels due north at a speed of 400km/h. The wind blows the plane due east at a speed of 50 km/h. How far is the plane from the airport after 1h. Give your answer to one decimal place

  79. physics

    A diver leaves the end of a 4.0-m-high diving board and strikes the water 1.3 s later, 3.0 m beyond the end of the board. Considering the diver as a particle, determine:

  80. chemistry

    Twenty grams of aluminum metal at 83.2 C were mixed with 49.3 g of water at 19.7 C. Assuming no heat loss, what was the final temperature of the Aluminum water metal? specific heat for Al= 0.215 specific heat for H2O=1.00

  81. Math

    A certain computer can perform 10^5 calculations per second. How many calculations can it perform ins 10 seconds? My answer: 10^5=100,000 Multiply by 10=10^6=1,000,000 Am I correct? Thank you

  82. Pre-Calc/Trig...

    Use the discriminant to determine the nature of the roots. 1. 2x^2+5x-3=0 2. -x^2+x+1=0

  83. program planning

    A program which has an adult centered curriculum all of the following could decide what activities the children will take part in, except which one? A. ParentsB. TeachersC. ChildrenD. Member's of the school board My answer is C

  84. Physics

    The speed of the car at the base of a 30 ft hill is 45 mi/h. Assuming the driver keeps her foot off the brake and accelerator pedals, what will be the speed of the car at the top of the hill?

  85. programming

    I am supposed to make a pseudocode for a fat gram calculator and I want to know if my code is correct. This is the instructions: Design a program that asks for the number of fat grams and calories in a food item. Validate the input as follows: - Make sure

  86. Algebra Help

    Determine without graphing, whether the given quadratic function has a max value or min value and then find the value. F(x)=2x^2+16x-1

  87. Physics/science

    A stuntman drives a motorcycle off a 350 m cliff going 70 mph. The angle of elevation of the cliff is 21 degree. He is hoping to make it across a 261 m wide river and land on a ledge 82 m high. Does he make it? HELP ME PLSSSSSSS!!!!!

  88. Science HELP

    A cow that is heterzygous for the black coat allele is crossed with a bull that is homozygous for the red coat allele. Which of the following Punnett squares represents this cross? A. B B b Bb Bb b Bb Bb That's one punnett square B. B b B BB Bb b Bb bb

  89. math

    Max has 5 more than twice as many cookies as Chris. Write an expression that shows the number of cookies Max has if Chris has c cookies. 5+2x=c Not sure please help.

  90. English Writing

    Can you help me write a persuasive paragraph? The topic is about 'Disposal Food'

  91. physics

    A uniform 3.05 kg board of length L = 1.58 m overhangs the edge of a table by x = 0.32 m. If a 4.87 kg block is placed on the board, what is the maximum distance d from the edge of the table that the block can be placed without tipping the board? so you

  92. CHEMISTRY

    Balance the following equation. (for a balanced eq. aA + bB → cC + dD, enter your answer as the integer abcd) CrO42−(aq) + H2O(l) + HSnO2− → CrO2−(aq) + OH−(aq) + HSnO3−(aq)

  93. Statistics

    The probability that a student uses the Academic Resource Center on a regular basis is 0.43 . In a group of 21 students, what is the probability that exactly 4 of them use the Academic Resource Center on a regular basis?

  94. physics

    A body is at equilibrum under the action of three forces.one force is 10N acting due east and one is 5N in the direction 60degree north east.what is the magnitude and direction of the third force

  95. Reading

    Choose two synonyms from the box for each of the three words below. Lean - noisy -scrawny - rowdy - brilliant - clever Milder word. Stronger word 1/ .......lean............thin ...................... 2/ .........................loud .................... 3/

  96. Chem

    CaCO3 + 2H3O= Ca + 3H2O + CO2 How many moles of CaCO3 produced the moles of CO2 in the reaction?

  97. Physics

    A 4.00g bullet, traveling horizontally with a velocity of magnitude 410m/s , is fired into a wooden block with mass of 0.780kg , initially at rest on a level surface. The bullet passes through the block and emerges with its speed reduced to 220m/s . The

  98. Math

    For middle school pizzaz worksheet number 66, moving words.What's the answer? I need the answer, like, ASAP.

  99. Chem Help Please!

    Compare the relative reaction rates of 1-bromobutane, 2-bromopropane, and 2-bromomethylpropane under SN1 reaction conditions. Silver nitrate will be used to provide nitrate ion as the nucleophile to produce alkyl nitrates as products. 1) I found the answer

  100. Science

    Genes are specific sections of (Fill in the blank) Answer choices alleles, chromosome, incomplete dominance, mitosis, codominance, centromere, DNA, diploid, reproduce, phenotype, meiosis, RNA Is the answer chromosome, or DNA?

  101. chemistry

    A mixture containing 15 g of carbon and 25 g of oxygen is sealed in a flask. The total mass of the system is 140 g. The flask is then heated to cause the carbon and oxygen to react. The sealed flask is then weighed. What is the final weight of the system?

  102. Math

    Leah is making chocolate chip cookies and the recipe calls for 3/4 cup of chocolate chips. If she wants to make 2/3 of the recipe what fraction of the chips will she need?

  103. Linear programe

    x1 number of pitsburge x2 number of IMB max 30 x1 + 15 x2 st 40 x1 + 30 x2 < 6000 40x1 >500 30x2>500 x2 750 x1,x2> 0 Question is Formulate this LP Model write in standared form

  104. physics

    what are the dimensions of power?

  105. math

    solve this equation a divided into 7=20 the actual problem has the divide sign. I got a=20*7 so a=140

  106. look adverb and verbs

    The farmers need to water them every day is this correct answer water every day

  107. Linear Programming Homework Problem

    formulate this Lp model . write in standard form An investment firm hired you to manage one of their new mutual funds. The fund invests in two main companies/stocks, Pittsburg Steel (X1) and IMB(X2). Pittsburg Steel is currently trading at $40.00 per share

  108. Math

    Does anyone know an easy way to remember the leading coefficient test for end behavior? I cannot seem to remember how to determine the direction the graph should go on these problems.

  109. math

    in a triangle the sum of the angle is 180degrees. if angle A is three times angle B and Angle C is 10 degrees more than twice Angle A. Find the measures of the three anges to the newarest degree

  110. Physics

    A floor polisher has a rotating disk that has an 11-cm radius. The disk rotates at a constant angular velocity of 1.1 rev/s and is covered with a soft material that does the polishing. An operator holds the polisher in one place for 43 s, in order to buff

  111. math college algebra

    lynne is 24 years old. lynne is twice as old as jean was when lynne is as old as jean is now. how old is jean ?

  112. program planning

    The term used to describe the educational portion of the program is A. school.B. curriculum.C. activities.D. lessons. My Answer is B

  113. sight words

    how to do sight words flashcards? I can me I can see the color Me and my daddy are going to the park I can dance bally

  114. Statistics

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

  115. math

    What is the perimeter of a rectangle that has a area of 35 in to the square root of 2

  116. program planning

    A well-developed curriculum that has been planned to support individual differences will also support A. a "clean your plate" rule during meal time for all children.B. a strict standard nap time policy.C. cultural diversity.D. individual parent demands. Is

  117. physics

    In a particle accelerator, a proton reaches an acceleration of 9.0 × 1013 m/s2. The mass of a proton is 1.7 × 10 -27 kg. What is the force on the proton?

  118. physics

    A typical cell membrane is 8.0 nm thick and has an electrical resistivity of 1.3 × 107Ω.m. (i) If the potential difference between the inner and outer surfaces of a cell membrane is 75 mV, how much current flows through a square area of membrane on a

  119. program planning

    All of the following are appropriate toys to use to engage an infant in, except A. a toy that they can bat at with their hands and feet.B. dress-up clothes.C. toys of different shape and texture.D. a ball. My answer is B

  120. program planning

    Play for a young child is all of the following, except A. the process through which children gains knowledge about their surrounding world.B. practice for future behaviors.C. a significant part of a child's development.D. a way to fill up time between

  121. program planning

    Information provided by a parent on an enrollment form can be shared with unauthorized persons only if _______ gives written consent. A. an agent from the state licensing agencyB. the parentC. a staff memberD. the program director My answer is B

  122. program planning

    Parents' feelings of guilt and anxiety about placing a child in a day care program can be relieved by A. the self-evaluation process.B. receiving a deferred enrollment.C. the personal interview.D. filling out enrollment forms. My answer is C

  123. program planning

    An appropriate science activity for a child six to 12 years of age is A. using a compass to find a specific site.B. experimenting with a magnet.C. growing plants from seeds.D. collecting leaves. My answer is C

  124. Math

    Please check 15/16 x 2/3 = 5/8

  125. program planning

    The purpose of a home visit is to A. determine the income level of the child's family.B. understand the interactions that go on at home between the child and the family.C. compare the child's actions with those of brothers and sisters.D. see if the child's

  126. planning & implementing for the environment

    By providing shelves low enough for children to select materials, you encourage the development of A. social skills.B. independence.C. cleanliness.D. solitary play. My answer is A

  127. Physics Help Please!!!! Urgent!!

    In an experiment, a boar (2600 kg) slows down from 11 m/s to 8 m/s in 5 sec when the engine is stopped. a) Determine the drag force. b) Using this information, what is a good approximation of the forward thrust force needed to keep the boat cruising at a

  128. physics

    The pilot of an aircraft wishes to fly due west in a 50.0 km/h wind blowing toward the south. The speed of the aircraft in the absence of a wind is 228 km/h. a) How many degrees from west should the aircraft head? Let clockwise be positive. Answer in units

  129. Physics

    Does potential energy equal to kinetic energy within the limits of experimental error?

  130. program planning

    Children who attend a program that has some theoretical basis for planning have A. more positive experiences than those who attend a program with no theory to guide the practices of staff.B. less positive experiences than those who attend a program with no

  131. French

    How do you say my friends X and Y are there in French?

  132. Science

    A cow that is heterzygous for the black coat allele is crossed with a bull that is homozygous for the red coat allele. Which of the following Punnett squares represents this cross? A. B B b Bb Bb b Bb Bb That's one punnett square B. B b B BB Bb b Bb bb

  133. planning & implementing for the environment

    An advantage of ordering equipment through catalogs is that A. there's no transportation cost (usually added to the cost at retail stores).B. prices are always cheaper than at retail stores.C. there's a wide selection of materials.D. you aren't billed for

  134. Physics - Second Law Question

    A large raindrop falling a cloud is acted on by a gravitational force of 4.9 x 10^-3 N directed downward and a force of air resistance of 4.5 x 10^-3 N directed upward. What is the net force on the raindrop? What is the direction of the net force? Thank

  135. chemistry

    Sodium chloride is formed by the following reaction: NaOH + HCl --> NaCl + H2O How many grams of water are formed when 10 g of HCl is consumed? Round your answer to one decimal place, do not include units or commas. use the molar masses in your text to two

  136. Physics - Second Law Question

    the space shuttle engines cause an upward force of 3 x 10 ^5 N to act on the shuttle. gravity pulls down on the shuttle with a force of 1.96 x 10^5 N. what is the net force on the shuttle? what is the direction of the net force?

  137. Introductory Chemistry

    Calcium chloride is 36.11% calcium by mass. How many grams of calcium are in 40.0 grams of calcium chloride

  138. Science

    Where will gravity pull you in the center of the earth?

  139. physics... PLEASE HELP

    A typical laser used in introductory physics laboratories produces a continuous beam of light about 1.0 mm in diameter. The average power of such a laser is 0.75 mW. (i) What is the average intensity? (ii) What is the peak intensity? (iii) What is the

  140. Math

    Please check 2/5 + (-7/8) = -6

  141. Psychology

    In terms of the general adaptation syndrome, the body prepares for a long, drawn-out battle during the _______ stage.

  142. math

    Marcus Has 5 sticks, He gave away 0.75 of each stick away. How Many Did He He Give Away

  143. algebra

    you want to build a playhouse for your sister in your backyard. You have the blue print which show the playhouse is 13 feet long and 12 feet wide. you want to change the dimension such that the lenght will be decreased and the width will be increased by

  144. psychology

    I chose the answer that I believe to be correct. I need help from an expert to indicate if the answers that I chose are right or wrong answers and indicate the correct letter or answer needed. Question 1 1. Counselors use Bronfenbrenners model most

  145. Math

    1) What is the probability of winning the jackpot if you play the Florida Lotto? 2) What is the probability of winning the jackpot if you play Mega Millions? 3) What is the probability of winning the jackpot if you play Powerball? Tall versus Short All

  146. Statistics

    A university sends a monthly newsletter on health to its employees. One issue included a column called "What Is the Chance?" that said: Chance that you'll die in a car accident this year: 1 in 75. There are about 310 million people in the US. About 40000

  147. calculus

    Find the center of mass in the 1st quadrant of the circle x^2+y^2=4 where rho(x,y)=k(x^2+y^2) Thanks.

  148. Algebra 2 (PLEASE, HELP ME!)

    For a livestock competition, the weight classes for hogs are shown in this table. Classes: Light: 200-230 (weight range in lbs.) Heavy: 230-250 (weight range in lbs.) a. What is the center of each weight class? A: Center of Light class: 215 pounds (lb.)

  149. physics

    A worker on scaffolding 75 ft above the ground needs to lift a 410 lb bucket of cement from the ground to a point 25 feet above the ground by pulling on a rope weighing 5 lb/ft. How much work is required

  150. arithmetic

    if A and B ARE MOVING IN a circular track of length 0.32miles from the start line whose speed are 7 miles per hour and 9 miles per hour respectively ,then after how many seconds will they meet for the first time?

  151. Calculus I

    lim x→ ∞ of e^(−x) sin√x A little lost. Help would be appreciated.

  152. Chemistry

    a 191 g piece of copper is heated to 100 C in a boiling water bath and then dropped into a beaker containing 755 g of water (density =1.00 g/cm3) at 4.0 C. What is the final temperature of the copper and water after thermal equilibrium is reached?

  153. math

    Write three decimals that are equivalent

  154. Physics Help Please!!!!

    During a launch of the shuttle, fuel is being burned at a rate of 2000 kg every second. the exhaust from the burning of this fuel is expelled by the engines and can be seen during the launch. readings from instruments mounted on the space shuttle show that

  155. English

    the Oprah Winfrey Show -------------------- Q: How do you pronounce "Oprah"? 1. /oupra/ 2. /opra/ 3. /opruh/

  156. Quick math help

    I'm on the topic of "Algebra proofs". Is this statement an example of a transitive property?: If CD=AB and AB=8 then CD=8 Here's another problem I want you to check& note that I only have 4 blanks per side of the table (statements and reasons) Given:

  157. mechanancs.

    Name any object around the house that has 6 forces acting on it.

  158. Math check

    Add and simplify 9 ft 6in 8ft 8in 8ft 5in 7ft 11in 6ft 7 in _______ 38ft 37in

  159. Calculus (Need help)

    Not sure how do do this. Please help? Find all values of a and b so that the function is continuous for all x E R. f(x)= −3a + 4(x^5)b x ≤ −1 { ax − 2b −1 < x < 1 3x^2 − bx + a x ≥ 1

  160. Science

    In a praticular breed of cattle, a black coat is dominant over a red coat. If a cow with a red coat is crossed with a black bull that is heterozygous for coat color, what percentage of their offspring would you expect to be black? A. 25% B. 50% C. 75% D.

  161. English

    1. On the show, Mattie read his poems and talked about his love for life. 2. On the show, Mattie read his poems and talked about his love abou life. -------------- Which preposition can we use, 'for' or 'about'? Are both OK?

  162. Pre-Calc/Trig...

    Solve using any method. 1. 2x^2+5x-3=0 2. -x^2+x+1=0

  163. physics

    A (1.35x10^2) kg box is falling near Earth’s surface. It is accelerating at (7.3000x10^0) m/s^2 [D]. What is the force of air resistance on the box?

  164. Math

    y=4x-10

  165. English

    Posted by rfvv on Monday, October 13, 2014 at 8:31pm. 1. Mattie made three wishes on the Internet. 2. Mattie wrote three wishes on the Internet. 3. Mattie uploaded three wishes on the Internet. 4. Mattie posted three wishes on the Internet.

  166. Statistics

    The points of 100 children in a test are normally distributed with mean of 25 points and a standard deviation of 10 points. (a)Given that the passing mark is 20, estimate the number of children who passed the test. (b)If 5.59% of the children obtain a

  167. physics

    Alice ((7.500x10^1) kg) and Bob ((8.5x10^1) kg) are standing at rest on friction free ice. Alice pushes Bob causing Bob to accelerate at (2.300x10^0) m/s^2. What is the magnitude of Alice’s acceleration?

  168. math

    Martha is covering kitchen shelves with shelving paper. She has 6 shelves that are each 1 ¾ feet long. She buys 13 ¼ feet of shelving paper of the correct width. Which equation can be used to determine how much paper she will have left over? would that

  169. Basic Statistics

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

  170. Basic Statistics

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

  171. REALLY HARD CALCULUS PROBLEMMMM PLEASE HELP ME???

    A circular swimming pool has a diameter of 16 m, the sides are 3 m high, and the depth of the water is 2.5 m. How much work (in Joules) is required to pump all of the water over the side? (The acceleration due to gravity is 9.8 m/s 2 and the density of

  172. math

    The 17th hole at the famous St Andrews golf course is 420m in length. how long will it appear on a plan of course of scale 1:8000?

  173. math

    Manuel painted 4 houses over the summer. John painted x houses. Patrick painted 2 houses. They painted 9 houses in all. How many houses did John paint? Not sure if it's x-(4+2)=9 or is it x+(4+2)=9

  174. psychology

    I chose the answer that I believe to be correct. I need help from an expert to indicate if the answers that I chose are right or wrong answers and indicate the correct letter or answer needed. Question 1 1. Dr. Jones encountered a problem with a new client

  175. Math

    32x+36y+16=0 36x+32y+16=0 Find x and y

  176. Calculus problem (PLEASE HELP!!)

    The diameter of a human pupil in millimetres is given by D= (2 + 4x^-0.3) / (1 + x^-0.3) where x is the luminance measured in candelas per square metre. Using this function,what is the diameter of the pupil when there is no light? What happens to the

  177. Math

    Solve 4cos^2A = 3cosA for 90º≤A≤180º. (Enter only the number.) Find A when 0º≤A≤90º and 3tan^2A = 2tanA + 1. (Enter only the number.)

  178. math

    To find the sum of 286+134 would you regroup once or twice explain

  179. History

    What was Thomas Jeffersons stance on the Declaration of Independence?

  180. Algebra 2

    Flying with the wind, a small plane flew 332 mi in 2 h. Flying against the wind, the plane could fly only 318 mi in the same amount of time. Find the rate of the plane in calm air and the rate of the wind

  181. Check my answers

    Question 1.Choose the answer that identifies the case of the parentheses word. My grandparents always go to the square dances with the Warrens and (them). nominative objective possessive *** my answer none of the above Question 2. Choose the pronoun that

  182. chemistry

    source of errors in determining transport number of k+ ion by moving boundary method

  183. Science

    If 2 cities on a globe is equal to 7cm, what is the actual distance between the 2 cities?

  184. Math

    Is there another way to write this equation? y=35.15e^1.04x

  185. math

    The cost of 4 dozens penceles, 3 dozens pens and 2 dozens eraser is Rs.16. The cost of 2 dozens penceles, 4 dozens pens and 6 dozens erase is Rs.90 wheras the cost of 6 dozens pencils, 2 dozone pens and 3 dozens eraser is Rs.70 find the cost of each itomes

  186. Algebra Answer Check

    What polynomial could you subtract from 5x^3 - 12x - x^2 + 9 - 12x^5 - 6x^4 to give a difference of 19 + 8x^3 - 18x - 19x^5 - 2x^2 - 8x^4? Is the answer k (the polynomial) = 7x^5 + 2x^4 - 3x^3 + x^2 + 6x - 28?

  187. chemistry

    Describe how to make 450mL of a 1.15% solution of CuSO4

  188. Science

    A scientist is studying a plant species in which the flower color genes are codominant. The scientist crosses a plant with red flowers and a plant with white flowers. The offspring will most likely have A. red flowers B. white flowers C. pink flowers D.

  189. vocabulary help

    When the realtor realized that there was a large dent in the floor, he tried to __________ cover it before the potential buyers noticed it. flagrantly ostensibly (my answer) surreptitiously latently Choose the word that best completes the sentence. After

  190. Argebra 2

    can some one help me out I am not a baker or maybe I should. If I was cooking a pie for 10 people how many pounds of apples will I purchase.

  191. Pre-Calc/Trig...

    A ball is thrown upward with an initial velocity of 4ft/sec from a height of ten feet. what is the maximum height that the ball will reach. h(t)= -16+vt+s

  192. Counseling

    I chose C for this question. Is C the correct answer? 1. Dr. Ben Casey encountered a problem with a new client in therapy. Using the model of reflective practice what is the sequence of steps Dr. Jones should use in order to work with this client

  193. Algebra 2

    Hi, I need help finding the domain and range of the Quadratic Model on part b. I've included part a. just in case you may need it. a.The parabolic path of a thrown ball can be modeled by the table. the top of the wall is at (5,6). Will the ball go over the

  194. algebra

    Using a proportion, determine how many pounds of apples a person needs for a pie for 10 when the recipe calls for three pounds of apples for an apple pie for eight people.

  195. math

    A board is two thirds yard long cut into six equal pieces how long is each piece

  196. English

    Write the vocabulary word that goes with each idea. Glared - legendary - muttered - gaped -flinched- fluke - snickering - stunned. 1/.............stared at angrily. Answer: glared 2/..........something so great that stories are told about it.

  197. St Grainne,s

    Both my hundreds and units digits are one-half of my tens digit. The sum of my three digits is 16. What am I.

  198. Algebra 2

    or a livestock competition, the weight classes for hogs are shown in this table. Classes: Light: 200-230 (weight range in lbs.) Heavy: 230-250 (weight range in lbs.) a. What is the center of each weight class? A: Center of Light class: 215 pounds (lb.)

  199. Analytical CHM

    For both the 2-(acetyloxy) benzoic acid and the acetic acid, which endpoint determination method will give the most reliable endpoint? and Why is this method most reliable ? Please explain in detail

  200. Science

    In a praticular breed of cattle, a black coat is dominant over a red coat. If a cow with a red coat is crossed with a black bull that is heterozygous for coat color, what percentage of their offspring would you expect to be black? A. 25% B. 50% C. 75% D.

  201. AP Giannini

    Dexter makes a scale drawing of his room. In real life, the room is 10' wide and 12'6" long. In Dexter's drawing, the room is 4"wide, what measure should the length be? explain how you figure this out.

  202. Physics

    A golf ball was launched at 35.0m/s at an angle of 35.0 degrees above the horizontal a) determine the horizontal and vertical components of the balls velocity b)how long was the ball in the air c) how far did the ball go d) what was the maximum height

  203. English

    Has anyone read "The Necklace"? I want some help on a few questions.

  204. Taxtation

    Another client, Ms. Dunham, has asked you to help her understand how her tax is computed. You need to provide Ms. Dunham with the following: An example of how to calculate the tax liability using the tax rate table and the tax rate formula for a taxpayer

  205. Chmistry

    calculate the molar mass of the compound (K S 0 4 .1 2 H 2 0 )

  206. Stat, Math

    The image of the public library is constantly changing, and their online services continue to grow. Usage of the library's home page grew by 17% during the past 12 months. It has been estimated that the current average length of a visit to the library's

  207. Chem

    In some solid calcium carbonate samples, calcium bicarbonate Ca(HCO3)2. Write a balanced equation for its reaction with hydrochloric acid. CaCO3 + HCL= Ca^2+ (aq) + HCL + Ca(HCO3)2 I don't know if I have written the reactions and products correctly?

  208. Biology

    How do proteins leave the cell?

  209. proportion

    write 9/12 = 4/8 in the lowest proporton

  210. planning & implementing for the environment

    Which one of the following criteria is most important for determining whether a piece of equipment is chosen? A. Does the equipment have more than one use? B. Is the equipment safe? C. Is the equipment interactive? D. Is the equipment useful for teaching

  211. Grammar (Please, help me! ASAP!)

    Use each of the following noun clasuses in a complete sentence. The word in parenthese describe the function each noun cluase should have in the sentence. 1. that Nguyen Thi Vinh longs for the familitarity of her hometown. (subject) 2. that her friend will

  212. calculus

    Use iterated integral to find the area enclosed by r=2sin2(theta). How do i graph this?

  213. 8th grade

    A camera manufacturer spends $2050 each day for overhead expenses plus $7 per camera for labor and materials. The camera sells for $17 each. a. How many cameras must the company sell in one day to equal its daily costs? b. If the manufacturer can increase

  214. Chemistry

    Does anyone know a website with practice problems (and answers) regarding quantitative chemistry? I haven't been able to find anything on Google.

  215. Statistics

    True or false: as then number in the sample becomes larger and larger (assuming it means as the sample gets larger and larger), then the mean of the sampling distribution is equal to the population distribution for any normal population. Is it false? That

  216. spanish literature

    what literary movement was La noche boca arriba?

  217. Mechanics

    A boat has a speed of 15ms-1 in still water. It is used to cross a river 500m wide along which there is a strong current of 0.9ms-1. The boat is being directed to the opposite bank, but is carried downstream. Calculate: a) The boat velocity relative to the

  218. Reading

    Please ,look at the answers (Nnh) reading

  219. Math

    True or false: as then number in the sample becomes larger and larger (assuming it means as the sample gets larger and larger), then the mean of the sampling distribution is equal to the population distribution for any normal population. Is it false? That

  220. Science

    A boat has a speed of 15ms-1 in still water. It is used to cross a river 500m wide along which there is a strong current of 0.9ms-1. The boat is being directed to the opposite bank, but is carried downstream. Calculate: a) The boat velocity relative to the

  221. math

    Data were recorded for the demand and revenue of a given product. Find the linear regression line which represents the revenue function. Find the quadratic regression curve which represents the revenue function. Data Demand x Revenue y 1 0 100 2 4 139.2 3

  222. algebra

    Factor each of the following polynomials. 1. x^2+x-6 2. 6x^2+13x-5 Thanx!

  223. algebra

    I need help factoring.Please! 1.4x^4-4x^2+1 2.a^4+a^2

  224. program planning

    In this study unit, a child is considered a toddler between the ages of A. one and two years.B. one-and-a-half and three years.C. one and one-and-a-half years.D. one-and-a-half and two years. My Answer is B

  225. Algebra Help

    find real solutions sq.root 2x+5 - sq.root x+6 = 1

  226. Math--1 question

    Name the inverse operations for each of the following operations. a. addition b. division c. multiplication d. subtraction

  227. math

    If 25 kids like chocolate cake and 25 other kids like strawberry cake how many kids like either?

  228. Math

    Let sin A = 12/13 with 90º≤A≤180º and tan B = -4/3 with 270º≤B≤360º. Find tan (A + B).

  229. Physics

    A pair of blocks of the mass M =30.7 kg, and 2 M are dragged over a rough, horizontal surface by two constant forces of magnitude F=98.0 N. The angle α = 22.7 ° . The blocks are displaced 7.5 m, and the coefficient of kinetic friction is 0.258. *for the

  230. engg

    At a point in a plate subjected to plane stress loading along its surface, the cartesian stress components acting on the x-face of an element oriented along the (x,y) frame are σx=40MPa and τxy=70MPa, The maximum allowable shear stress, to prevent

  231. planning & implementing for the environment

    In acquiring equipment for a child care facility, you'll most likely A. have to purchase all of the equipment for your center.B. be able to acquire most of your equipment from free and inexpensive sources. C.purchase 90 percent of your equipment locally.

  232. chemistry

    Why is the crude product isoamyl bromide washed with water from isoamyl alcohol? (What is removed by this wash?)

  233. math

    There are two simultaneous games. One game is flipping a coin. Payment of tail is $2.50 and head is $1.50. And the other game is rolling a six sided die and paying number of dollars shown on the face of the die. Both the coin and the die are determined

  234. program planning

    An appropriate science activity for a child six to 12 years of age is A. using a compass to find a specific site.B. experimenting with a magnet.C. growing plants from seeds.D. collecting leaves. My answer is C

  235. program planning

    A well-developed curriculum that has been planned to support individual differences will also support A. a "clean your plate" rule during meal time for all children.B. a strict standard nap time policy.C. cultural diversity.D. individual parent demands. My

  236. Physics

    1.) Let's say that an an orange is launched upward at 22m/s. What is the displacement 3.5s later? 2.) When a volcano erupts, big rocks have been measured to reach heights of 50km (50,000m) What would the initial velocity need to be in order to reach such

  237. Trigonometry

    Suppose sin A = 12/13 with 90º≤A≤180º. Suppose also that sin B = -7/25 with -90º≤B≤0º. Find tan (A – B).

  238. program planning

    The curricular approach which encourages children to explore, experiment, and discover is A. eclectic.B. child-centered.C. adult-centered.D. child-initiated. My answer is B

  239. program planning

    Which of the following evaluations is most likely to be made by the director alone? A. Evaluation of the enrolled childrenB. Evaluation of the programC. Evaluation of the facilityD. Evaluation of the staff member My answer is D

  240. Science

    In a praticular breed of cattle, a black coat is dominant over a red coat. If a cow with a red coat is crossed with a black bull that is heterozygous for coat color, what percentage of their offspring would you expect to be black? A. 25% B. 50% C. 75% D.

  241. Math

    a car is 48 times bigger than a model that you are building if the tires are 27 inches tall how tall will the tires on the model be

  242. math

    A pair of blocks of the mass M =30.7 kg, and 2 M are dragged over a rough, horizontal surface by two constant forces of magnitude F=98.0 N. The angle α = 22.7 ° . The blocks are displaced 7.5 m, and the coefficient of kinetic friction is 0.258. *for the

  243. Math (Ms. Sue! Someone help)

    Hi I really need help. I don't know even how to figure these two questions out so if you could help me, please. Is (–4, 10) a solution to the equation 10 – 5x = y? Explain your answer. Describe the pattern in the table using an equation. x|y 1|15 2|25

  244. physics

    A block of mass m = 4.20 kg slides along a horizontal table with speed v0 = 9.50 m/s. At x = 0 it hits a spring with spring constant k = 62.00 N/m and it also begins to experience a friction force. The coefficient of friction is given by μ = 0.150. How

  245. Grammar (Please, help me! ASAP!)

    2. The speaker thinks that her friend will forget their roots and look at her with hatred. 3. The paramedic agreed that dying in an auto accident defies explaination. 10. direct object?

  246. Algebra 2

    write an equation to solve each problem Briana and her sister Molly want to buy the same model bicycle. Briana needs $73 more before she can afford the bike. Molly needs $65 more. If they combine their money, they will have just enough to buy one bicycle

  247. program planning

    An appropriate science activity for a child six to 12 years of age is A. using a compass to find a specific site.B. experimenting with a magnet.C. growing plants from seeds.D. collecting leaves. My answer is D

  248. Spanish

    I need help proofreading my Spanish speech (short), just for grammars and see if it makes sense Prompt: La etiqueta en el modo des vestir. Qué se considera apropiado para un colegio? El vestir apropiado refleja la calidad del colegio y la imagen del

  249. Algebra 2

    write an equation to solve each problem There is only one freshman in the cast of the high school musical. There are 6 sophomore and 11 juniors. One third of the cast are seniors. How may seniors are in the musical? *Please show me the work on how to do it

  250. Math

    (-3) ^-4 5 ^-2 =?

  251. Algebra 2

    solve each inequality or equation. Graph the solution. 5(absolute value 3w+2)-3>7 *Please show me the work

  252. computers

    In a 350 word written paper, using pseudocode, write a program on how you turn a corner in an automobile. Note that there is a stop sign in the intersection. Determine the logical steps involved and write the pseudocode. Consider the following questions

  253. Physics

    Two steam locomotives are approaching each other, each at 30 mi/hr, heading for a sure head-on collision. A rhinoceros beetle, who flies with a constant speed of 40 mi/hr, leaves the front of the first locomotive when the engines are just 2.000 miles

  254. History

    Descride 5 reasons for the outbreak of the Haitian revolution

  255. math

    Simplify 3√45x-√27x+17√3x-9√125x^3

  256. physics

    A man threw a ball horizontally out of an elevator that was traveling upward at a rate of 5.50m/s. If the ball was thrown at a velocity of 10.5m/s when the elevator was 15.3m above the floor of the atrium. How far from the base of the elevator did it land?

  257. chemistry

    A 1.07g sample of sulfur was burned in a bomb calorimeter whose calorimeter constant is 2.03 k cal/C. If the resulting temperature change was 1.17 C, what is the molar heat of combustion for sulfur?

  258. Math

    Which of these two form a geometric sequence? 1. 2x, 4x - 2, 6x - 4 ..... 2. x + 1, 2x + 2, 5x + 1 .....

  259. Linear Programming Homework Problem

    An investment firm hired you to manage one of their new mutual funds. The fund invests in two main companies/stocks, Pittsburg Steel (X1) and IMB(X2). Pittsburg Steel is currently trading at $40.00 per share and IMB at $30.00 per share. Your goal is to

  260. Math

    Two pilots take off from the same airport. Mason heads due south. Nancy heads 23º west of south. After 400 land miles, how far is Nancy from Mason’s route? Round your answer to the nearest tenth of a mile. (Enter only the number.)

  261. Pre-Calc/Trig...

    Help me do this please. Simplify the expressions using imaginary numbers. 1. √-16 2. √-49