Questions Asked on
November 29, 2015

  1. phyics

    Cheryl is riding on the edge of a merry-go-round, 2m from the center, which is rotating with an increasing angular speed. Cheryl’s tangential acceleration is 3.0m/s2. At the instant that Cheryl’s linear speed is 4.0m/s, what is Cheryl’s total

  2. Pre-Calculus

    f(x) = cos(x) on the interval [−2π, 2π] (a) Find the x-intercepts of the graph of y = f(x). (Enter your answers as a comma-separated list.) (b) Find the y-intercepts of the graph of y = f(x). (Enter your answers as a comma-separated list.) (c) Find the

  3. science

    First, you will investigate purely vertical motion. The kinematics equation for vertical motion (ignoring air resistance) is given by y(t)=y0+v0t−(1/2)gt2, where y0=0 is the initial position (which is 1.2 m above the ground due to the wheels of the

  4. math

    how do you say 0.253 and 7.632 in word form?

  5. science

    Four racecars are driving at constant speeds around a circular racetrack. The data table gives the speed of each car and each car’s distance from the center of the track at one instant. Car Speed (m/s) Position (m) A 40 20 B 40 25 C 50 20 D 50 25 Rank

  6. FRAGMENTS AND RUN-ONS

    i was taking a test online, and i think they gave me the wrong answers. Here take a look at the test and the answers if the answers are wrong, please cahnge them for me so i know the corrects answers!!! THANKS Fragments and Run-ons Post test Identify

  7. Social Studies

    1. People's occupations, their behavior, and their beliefs are a part of their (1 point) government. climate. technology. culture.•• 2. When geographers study human-environment interaction, they learn (1 point) how schools are run. how people and their

  8. algebra

    A bag contains 9 marbles: 2 are green, 4 are red, and 3 are blue. Laura chooses a marble at random, and without putting it back, chooses another one at random. What is the probability that both marbles she chooses are blue? Write your answer as a fraction

  9. Chemistry

    If you want to prepare 2.0 liters of a .25 M solution of NH4Cl, how many grams of the salt should you weigh out?

  10. physics

    four particles of masses 1kg, 2kg,3kg, and 4kg are at vertices of a rectangle of sides a and b.if a=1m and b=2m find the location of the center of mass

  11. Algebra

    1. What is the slope of the line that passes through the points (-2, 5) and (1, 4)? A. -3 B. -2 C. -1/3 D. 1/3 2. A line has a slope -5/3. Through which two points could this line pass? A. (12, 13) and (17, 10) B. (16, 15) and (13, 10) C. (0, 7) and (3,

  12. algebra

    30cm=_____mm

  13. Physics

    The pressure and volume of an ideal monatomic gas change from A to B to C, as the drawing shows. The curved line between A and C is an isotherm. IMAGE:wvw.webassign.n3t/cj8/15-p-031.gif a)Determine the total heat for the process in joules. b)State whether

  14. math

    how many ways to divide 3 sandwiches for 9 people

  15. physics

    Heat Q is added to a monatomic ideal gas at constant pressure. As a result, the gas does work W. Find the ratio Q/W. What in the world is this asking??

  16. Chemistry Dr BOB

    A voltaic cell has one half-cell with a Cu bar in a 1.00 M Cu2+ salt and the other half-cell with a Cd bar in the same volume of a 1.00 M Cd2+ salt. Report your answers to the correct number of significant figures. a)Find E degree cell, delta G degree ,

  17. Math

    shows MN segment graphed on a coordinate plane. Point P lies on MN segment and is 3/4 of the way from M to N. What are the coordinates of the point P? these are points on graph M(-4, 4), N(6,-2)

  18. math

    4 hundreds plus 10 tens plus 3 ones is the same as

  19. Math

    Jim uses ribbion to make bookmarks. Jim has 9 feet of ribbion. He uses 1/3 foot of ribbon to make each bookmark. What is the total number of bookmarks J makes with all 9 ft of ribbon?

  20. PHYSICS

    A Solid Cube Of Steel Has Each Side 10cn Long.Find Its Mass If The Density Of Steel Is 6.5g/cm

  21. Science Help

    i know that the half life of strontium 90 half-life is 28.8 but how can i explain this???

  22. Chemistry

    Determine the number of moles of N2 that are required to produce 12 mol of NH3 using the equation, N2 + 3H2 --> 2NH3. 12 mol NH3 x 1 mol N2/2 mol NH3 = 6 moles of N2.

  23. Science

    Acrostic Statement from the word Bacteria pls. :)

  24. Intermediate Algebra

    Which of the following ordered pairs is a solution to the system: 6x - 2y = 2 9x - 3y = 1

  25. Science

    In tha light wave above the property labeled A determines which characteristic of visible light? Brightness Speed Reflection Color**** The a is from the crest to the next crest and the A is in the middle of it??

  26. Algebra

    What would be the first step to solving each equation, Add 4, Subtract 4, Multiply by 4, or Divided by 4? 1. 4 + 4n = -12 2. 4n = -12 3. n/4 = -12 4. n/4 - 4 = -12

  27. Algebra

    Sabrina is building a rectangular raised flower bed. The boards on the two shorter sides are 6 inches thick, and the boards on the two longer sides are 4 inches thick. Sabrina wants the outer length of the bed four times it's height and the outer width to

  28. Science

    How much force must be applied to accelaerate a 40 kg chair at 2.8m/s2?

  29. math

    During a sale, a store offered a 40% discount on a particular camera that was originally priced at $450. After the sale, the discounted price of the camera was increased by 40%. What was the price of the camera after this increase?

  30. Physics

    A boat moving at 9.5 km/hr relative to the water is crossing a river 3.9 km wide in which the current is flowing at 4.9 km/hr. At what angle upstream should the boat head to reach a point on the other shore directly opposite the starting point? (Assume 0

  31. informatics practices

    write program for 1,2,4,7,11,16.....n times

  32. Science

    Explain why chlorine (Cl²) is a gas at room temperature, but at sodium chloride (NaCL) is a solid at room temperature.

  33. cadambi

    Complete the following BaO2 . 8H2O(s)+H2SO4(og)

  34. math

    there are 5 pounds of apples in one bag. Make a table to show how many pounds of apples are in 6 bags

  35. Graphing Reciprocal Trig Functions

    a) y=csc(x-3) I understand that there are asymptotes at 0, pi, and 2pi and I know how to graph the base points but I am confused on how to move it with the phase shift. Do I use a table of value for the asymptotes and base points to move?

  36. chemistry Dr. BOB

    A voltaic cell has one half-cell with a Cu bar in a 1.00 M Cu2+ salt and the other half-cell with a Cd bar in the same volume of a 1.00 M Cd2+ salt. Report your answers to the correct number of significant figures. a)Find E degree cell, delta G degree ,

  37. English

    Are the poems 'Annabel Lee' and 'o captain! My captain!' Similar in any way? Kindly compare these poems. Pls help.

  38. science

    Predict how the range of the projectile will change when you change the angle from 45∘, keeping the speed constant. Predict how the range of the projectile will change when you change the angle from , keeping the speed constant. A. It increases with

  39. Math

    Let ABCD be a parallelogram. Extend line BC past B to F, and let E be the intersection of lines AB and DF. If the areas of triangles BEF and ADE are 1 and 9, respectively, find the area of parallelogram ABCD. I have no idea!!

  40. Early Childhood

    1. Using macaroni in child’s art project A. Is a creative use. B. Should be done only with supervision. C. Should be discouraged because. D. Isn’t a good idea; young children might try to eat it. 2. The use of rhythm instruments in a music program A.

  41. State History

    Who would say this, They think they own the state because they were here first. Their is no way I would vote for the capital to be New Orleans? A. A Native American in Louisiana B. A Creole land owner in Louisiana C. A American land owner in Louisiana D. A

  42. algebra

    v=5y^3+31y^2+6y

  43. Physics

    Assume the gas is diatomic, calculate how much heat was added to the gas in the process. One mole of ideal gas initially at a temperature of Ti=0 Celsius undergoes an expansion at a constant pressure of 1.00 atm four times its orginal volume

  44. math-7th grade algebra

    Bread has gone sale at the supermarket. the sale price is $3.50 per loaf and the original price was $4.00 per loaf? whats the percent decrease from original price to sale price?

  45. math

    A drug in the bloodstream has a concentration of c(x) =3t/t^2 + 1 Approximate the highest concentration of the drug reached in the bloodstream Determine how long it takes for the drug to drop below 0.2. Solve algaebraically

  46. Math

    The original price of a video game is $32. Prince buys the video game when it is on sale for 30% off the regular price. If the sales tax is 10%, how much will Prince pay for the video game?

  47. Social Studies (Check, Please!)

    1. Why is the Social Security Act an important piece of legislation? A: The Social Security Act is an important piece of legislation because it guarantees benefits for the elderly and the unemployed. The legislation also provides modest welfare payments to

  48. Math

    Points X and Y are on a number line, and Y partitions XZ segment into two parts so that the of the length of XY segment to the length of YZ segment is 5:7. The coordinate of x is 1.3, and the coordinate of Y is 3.8. What is the coordinate of Z? Help help

  49. Chemistry

    Which solution will have the lowest pH? a. 0.10 M HClO2, pKa = 1.96 b. 0.10 M HCN, pKa = 9.21 c. 0.10 M HF, pKa = 3.19 d. 0.10 M HClO, pKa = 7.538 e. 0.00010 M HCl Does the lower the pka stronger the acid, means the lower the ph, so the answer is A?

  50. math

    If I drove 416 miles per hour at a an average speed of52 and I left at1:00 when should I arrive ?

  51. Algebra

    Kelly is x years old. Mike is 2 years older than twice Kelly's age. The sum of Kelly and Mike's ages is 26. How old is Mike?

  52. History

    I need a campaign poster for populist party

  53. Math

    Find the total area between y=x+12 and Y=3x+1 between x=0 and x=2.

  54. Chemistry Dr Bob

    A voltaic cell has one half-cell with a Cu bar in a 1.00 M Cu2+ salt and the other half-cell with a Cd bar in the same volume of a 1.00 M Cd2+ salt. Report your answers to the correct number of significant figures. a)Find E degree cell, delta G degree ,

  55. Physics

    Anna notices a pyramid sticking out of an adjacent ravine and she wants to investigate. She notices some vines hanging over the ravine. To her luck, a strong breeze blows some of the vines toward her and she is able to grab one. The vine appears to make

  56. English

    In which of the following sentences is the underlined word an object pronoun? A. You really should apologize to her. B. I gave[her] a gift for her birthday. C. We returned [our] books to the library. D. I would like[ you] to be my friend. A. is wrong

  57. English and History

    Im a qualified English and History teacher in Australia ( proof available) . What do I need to do to become an online volunteer tutor for you ?

  58. maths

    Lance spend 1/3 of his money on sweets and 2/5 on candy. What fraction of his pocket money he has left

  59. Chemistry

    The population ratio between two energy levels separated by 1.4 ✕ 10−22 J is 0.69. What is the temperature of the system?

  60. Business Math

    Mortgage lenders base the mortgage interest rate they offer you on your credit rating. This makes it financially critical to maintain a credit score of 700 or higher. How much more interest would you pay on a $193,000 home if you put 20% down and financed

  61. Computer Science

    On python/pyscripter using the turtles i have to write a program that has 3 functions: drawA(), drawB(), drawC() each draw a letter and advance the turtle on to where the next letter will begin. Once these functions are working correctly, have your program

  62. chemistry

    In the preparation of ammonia, why should the mixture of ammonium chloride and calcium hydroxide be a paste, not dry powder?

  63. Chem 1211

    Calculate the wavelength (in nm) of a photon needed to eject an electron with a kinetic energy of 3.93 eV from a metal surface with a work function of Φ = 0.60 eV. {h = 4.136×10-15 ev·s, c = 2.998×1017 nm/s}

  64. algebra

    A wire is 264 ft in length is to be cut into two pieces, one to form a rectangle whose length is four less than twice the width, and the other to form a square whose side is equal to the sum of the width and the length of the rectangle. how long is the

  65. physics

    a persons heart and head are 1.3 meter and 1.8 meter above the feet,respectively.determine the potential energy of 0.5 kg of blood in the heart relative to feet and head

  66. Math

    Suppose that a cyclist began a 510 mi ride across a state at the western edge of the state at the same that a car traveling toward it leaves the eastern end of the state if the bicycle and car met after 8.5 hr and the car traveled 33.4 mph faster than the

  67. Math

    Points X and Y are on a number line, and Y partitions XZ segment into two parts so that the of the length of XY segment to the length of YZ segment is 5:7. The coordinate of x is 1.3, and the coordinate of Y is 3.8. What is the coordinate of Z? I need help

  68. Physics

    order the acceleration from least to greatest. a) 3050 b) 20

  69. math

    ok i don't know how to do this f(x)=20-x^2 find f(4)

  70. Physics

    true or false.Initial velocity is always equal to zero

  71. math

    The diagonal of a rectangular storage room is 4 yards long. If its length is 2 times its width, find the dimensions of the room.

  72. Chemistry Dr BOB

    A voltaic cell has one half-cell with a Cu bar in a 1.00 M Cu2+ salt and the other half-cell with a Cd bar in the same volume of a 1.00 M Cd2+ salt. Report your answers to the correct number of significant figures. a)Find E degree cell, delta G degree ,

  73. math

    angle of elevation of two ships from the top of the lighthouse and on the same side are fond to be 45&30 dreege respectively if the ship is 200m apart find the height of the lighthouse

  74. MATH

    Under the installment plan, the customer pays $24/month over 4 yr with interest charged on the balance at a rate of 16%/year compounded monthly. Find the cash price for a set of encyclopedias if it is equivalent to the price paid by a customer using the

  75. Physics

    a see saw is balanced. left hand side is 3m long and has an applied force of 4N the righth hand side is 6m long and has an unknown force applied. what is that force?

  76. physics

    A 30kg sled(with rider) slides without friction down a small, ice covered hill. On the first run the sled starts from rest and its speed at the bottom of the hill is 8.50m/s. On the second run the sled starts with a speed of 1.50m/s at the top. Find the

  77. algebra

    m/9=24/36

  78. Math

    A drug in the bloodstream has a concentration of c(x) =3t/t^2 + 1 Approximate the highest concentration of the drug reached in the bloodstream Determine how long it takes for the drug to drop below 0.2. Solve algaebraically

  79. informatics practices

    write program for following series: (i)1,2,6,24,120...........n times. (ii)1,2,3,5,7,11..........n times.

  80. SHANTO PRIPARATORY & SECONDARY SCHOOL

    DIFINE TIME?

  81. indian school

    As observed from the top of 60m high light house the angle of dipression of two ships are 30 and 45.Findthe distance between ships.

  82. physics

    The diffusion rate for a solute is 4.0E-11 kg/s in a solvent-filled channel that has a cross-sectional area of 0.50 cm^2 and a length of 0.220 cm. What would be the diffusion rate m/t in a channel with a cross-sectional area of 0.30 cm^2 and a length of

  83. Physics

    Alex is exploring a cave that has a slight incline and is iced over, forcing her to use ice cleats to explore it. After climbing 50 m into the cave, she finds what she is looking for and she takes out her ice pick and hammer to begin removing the stones.

  84. Chemistry

    If 5.026g chromium is combined with 3.04L of chlorine gas at 0.955atm and 220C, what mass of chromium (III) chloride is produced?

  85. maths

    Score of Janet in Maths is 25 more than two-third of her score in English. If she scores x marks in English, what is her score in Maths ?

  86. Chemistry

    Sulfuric acid is produced commercially by the reactions indicated below at the appropriate percent yields for each step. The second step utilizes air as a source of oxygen and heats it to 4000C in the presence of vanadium (V) oxide, a catalyst. Assuming

  87. science

    Circle all of the following that go through active transport. a)osmosis b)endocytosis c)diffusion d)exocytosis Please help me, I'll greatly appreciate it! :)

  88. socialogy

    What is the best way to define the word “autonomy” when it comes to ethical decision making? (Points : 1)

  89. girls secondary school ikenegbu

    a capacitance of 6microfarad and another unknown capacitance are connected in series to a battery, if the potential difference between the battery terminals is 16v while over the unknown capacitance is 6v, find the magnitude of the unknown capacitance, the

  90. math

    the spanish club is selling t-shirts and baseball caps as a fund raiser if the baseball cap cost $1.13 to make and sell the shirt for $5 how much profit does the club make for each shirt?

  91. algebra

    i need help explaining the difference between the distributive property and factoring

  92. math

    Points X and Y are on a number line, and Y partitions XZ segment into two parts so that the of the length of XY segment to the length of YZ segment is 5:7. The coordinate of x is 1.3, and the coordinate of Y is 3.8. What is the coordinate of Z? someone can

  93. maths

    find the sun's altitude when the height of a tower is 3 times of the length of its shadow.

  94. Chemistry

    what mass of barium carbonate will dissolve in a 2.50L solutions of 0.0500 molar sodium carbonate

  95. math 152

    P=$4000.00,A=$5200.00,T=5years what is the simple interst rate

  96. Genetics/Bio

    In need of help for these two questions. Thank you in advance! Restriction Enzyme A has the recognition sequence 5′- CTGCAG -3′. Restriction Enzyme B has the recognition sequence 5′- GCGC -3′. Based on this information, you can infer that: A.

  97. math

    You are riding your bike at a constant speed of 30 feet per second. A friend uses a stopwatch to time you as you are riding along a city block that is 240 feet long. 1. Make a table to represent the situation where the independent variable is time and the

  98. English

    Is this word correct in this sentence. although he had heard about his grandmother's aches and pains a million times, Dennis feigned interest whenever she complained to him. The four choices are Feigned, Condoned Mediated Reconiciled

  99. math

    Tamara took guitar lessons for 5.8 years. Then she took trumpet lessons for the next 3.4 years. How many years has Tamara taken lessons on the two musical instruments?

  100. English

    The habitat of a cactus is? Capable of storing water Choices are : Very Prickly, Capable of storing water, graish-green or the desert A mundane experience, in most people’s opinion, would be: A: Grocery shopping. C. Sky-drying B Meeting one’s future

  101. Chemistry

    How to find the mass of a solid formed when: 45.00ml solution of 0.003 800 mol/L lead (II) nitrate is mine dish a 30.00 mL solution of 0.08800 mol/L strontium iodide

  102. Physics

    A 0.60 kg mass is attached to a 0.6 m string and displaced at an angle of 15 degrees before it is released. 1)What is the potential energy of the pendulum? 2) What is the angular frequency of the pendulum? What is the height of its displacement? 4) What is

  103. physics

    An object in equilibrium has three forces exerted on it. A 25 N force acts at 90 from the x-axis and a 48 N force acts at 60. What are the magnitude and direction of the third force

  104. Algebra

    Which method(s) can you use to solve -2/3c = 16 multiply each side by -2/3 multiply each side by -3/2 divided each side by -2/3 multiply each side by 3, then divided each side by -2

  105. Solving ratio problems

    Write three equivalent ratios for each? a). 2 : 1 = b). 32 : 4 = c). 27 : 15 = d) 10/3 =

  106. indian school

    AS OBSERVED FROM A 60M HIGH LIGHT HOUSE THE ANGLE OF DEPRESSION IS 30 AND 45 DEGREE.FIND THE DISTANCE BETWEEN THE SHIPS.

  107. Work Environments

    Why is emotional intelligence an important factor in individual motivation in work environments?

  108. Math

    Suppose that a cyclist began a 450 mi ride across a state at the western edge of the state, at the same time that a car traveling toward it leaves the eastern end of the state. If the bicycle and car met after 7.5 hr and the car traveled 30.4 mph faster

  109. Math

    The bases of trapezoid ABCD are AB and CD. Let P be the intersection of diagonals AC and BD. If the areas of triangles ABP and CDP are 8 and 18, respectively, then find the area of trapezoid ABCD. I'm so confused... please help! I was thinking that if I

  110. scince

    When a body hanging from a spring balance is immersed in water it floats just below the surface of water and shows 100 g loss in its weight (i) What is the weight of the body in water? (ii) What is the weight of the body in air? (iii) What is the upthrust

  111. Physics- Mastering Physics

    Predict how the range of the projectile will change when you change the angle from 45∘, keeping the speed constant. A The range increases with increase in angle and decreases with decrease in angle. B It increases with either an increase or decrease in

  112. Science 7

    Which of the following describes the genotype and phenotype of parents whose child will definitely have a recessive trait?