Questions Asked on
August 15, 2015

  1. Physics

    A 96.3-kg baseball player slides into second base. The coefficient of kinetic friction between the player and the ground is μk = 0.619. (a) What is the magnitude of the frictional force? (b) If the player comes to rest after 1.00 s, what is his initial

    asked by Jamie
  2. Alg 2

    The first term of a geometric sequence is 25, and the fourth term is 1\5. (a) Find the common ratio r. r = Find the fifth term. a5 = (b) Find the partial sum of the first eight terms. S8 =

    asked by franey
  3. pre-calculus urgent

    Please help me here as well to clarify more my understanding. Let a1, a2, a3, . . . be a geometric sequence with initial term a and common ratio r. Show that a1^2, a2^2, a3^2, . . . is also a geometric sequence by finding its common ratio. Given that the

    asked by Alex
  4. physics

    A bicycle racer sprints at the end of a race to clinch a victory. The racer has an initial velocity of 12.5 m/s and accelerates at the rate of 0.450 m/s2 for 7.00 s. (a) What is his final velocity? (b) The racer continues at this velocity to the finish

    asked by fdasfg
  5. Math Check

    For each integer n>1, let A(n) denote the sum of the integers from 1 to n. For example, A(100)=1+2+3+ +100=5,050. What is the value of A(200)? A.)10,100 B.)15,050 C.)15,150 D.)20,100 E.)21,500 I know that the best answer choice is D, but the explanation

    asked by Devron
  6. physics

    A student investigates the interference of light in a Young’s double slit experiment. i). Explain why there is no interference pattern if the two slits are 5.0 cm apart. ii). Explain why it is better for the student to observe the interference patterns

    asked by aiman
  7. Chemistry H

    "When you pulled the steel wool apart, you found that the mass was unchanged. When you heated the steel wool, you found that the mass changed. Explain."

    asked by Rachel
  8. physics

    The convex meniscus lens has a 15cm radius for the convex surface and 20cm for the concave surface. The lens is made of crown glass with refractive index, n=1.52 and is surrounded by air. What is the focal length of the lens.

    asked by aiman
  9. Physical science

    Ball A attracts B and repels C. Ball D attracts B and has no effect on E. A negatively charged rod attracts both A and E. What are the charges,if any,on each ball?

    asked by Beauty
  10. physics

    A convex meniscus lens is made of glass with refractive index, n= 1.5. The radius of curvature of the concave surface is 46.2 cm and the radius of curvature of the convex surface is 22.4 cm. a)Calculate the focal length of the lens. b)Determine the

    asked by aiman
  11. Math

    Two marbles are sitting side by side in a glass container. The base of the container is 10 units long and the radius of the smaller marble is 2 units. What is the radius of the larger marble? Describe the strategy you are going to use to answer the

    asked by Joy
  12. Reading

    81) Siberia is a giant, semi-arctic region encompassing most of northern Asia. Most of Siberia is, or has once been, part of Russia or the Soviet Union. Much of Siberia is frozen and empty. Though Siberia contributes almost 80% of Russia's land area, only

    asked by BARNETTA
  13. physics

    A thin layer of liquid methylene iodide (n=1.756) is sandwiched between two flat parallel plates of glass (n=1.50). What must be the thickness of the liquid layer if normally incident light with in air is to be strongly reflected?((2m+1),85.4nm)

    asked by aiman
  14. chemistry

    Outline the following synthesis: a) 2 – methyl propene -> 2-methyl-2-propanol. b) 3 –ethylpentene -> carbon dioxide, water and 2-ethylbutanoic acid. c) 2 methyl-2-pentene -> 2-chloro-2-methylpetane and 3-chloro-2-methylpentane d) 1-ethylcyclohexene ->

    asked by aiman
  15. Math

    Kate made a birthday cake for Bryan’s second birthday. One of the guests on the party (who is a preschool director) thought how awesome it would be to have a cake like this for the Open House next week! She asked Kate to make one for her. She wanted to

    asked by Althea
  16. physics

    Light from sodium lighting passes through a single slit, then through double slit system and is projected on a screen. The separation distance between the slits of the double slits is 1.00mm. The screen is placed at 1.0m from the double slits system and

    asked by aiman
  17. physics

    Two converging lenses, having focal length 5 cm and 10 cm respectively, are placed 25cm apart. An object is placed 10 cm in front of the lens of focal length 5cm. Determine the position and magnification of the final image formed.

    asked by aiman
  18. Programming

    This question is about football matches between teams. A record of games played between teams is stored in a graph G. Each edge in the graph corresponds to a match between a pair of teams. For example, if there is an edge between vertices 3 and 6 then Team

    asked by Jim
  19. Accounting

    Samantha owned 1,000 shares in Evita, Inc. an S corporation, that uses the calendar year. On October 11, 2010, Samantha sells all of her Evita stock. Her basis at the beginning of 2010 was $60,000. Her share of the corporate income for 2010 was $22,000,

    asked by Jay
  20. Biology

    How is a protein different from a complex carbohydrate? a.The monomers that make up a protein vary whereas the monomers that make up a complex carbohydrate are all the same. b.Proteins function as energy storage polymers whereas complex carbohydrates

    asked by Steve
  21. physics

    A 2cm high object is placed 3cm in front of a concave mirror. If the image is 5cm high and virtual, what is the focal length of the mirror?

    asked by aiman
  22. Urgent math

    how do I do this can any body show me how? An arithmetic sequence begins 4, 9, 14, 19, 24, . . . . (a) Find the common difference d for this sequence. d = (b) Find a formula for the nth term an of the sequence. an = (c) Find the 35th term of the sequence.

    asked by Aileen
  23. physics

    A monochromatic light illuminates a double slits system with a slit separation, d =0.3 mm. The maximum of the first order occurs at y = 4.0 mm on a screen placed at 1.0 m from the slits. Find the: a)Wavelength b)Distance between the central maximum and the

    asked by aiman
  24. physic

    A 7kg box sled is coasting across frictionless ice at speed of 9 m/s when a 9kg package is dropped into it from above. what is the new speed of the sled?

    asked by Nithiya
  25. English

    8. Due to the cold, the young man walked spryly across campus. Which of the following options is the meaning of "spryly" as used in the sentence above? A Stiffly B. Staunchly C. Easily D. Briskly I thank D is the correct answer

    asked by BARNETTA
  26. math

    black tea at $2.40 per kg is mixed with green tea at $3.20 per kg in the ratio 1:3 calculate the weight of each type of tea in 40 kg of the mixture and calculate the price per kg of the mixture

    asked by shah
  27. math

    paul can type 60 words per minute and jenifer can type 80 words per minute how does pauls typing speed compare to jenifers

    asked by james
  28. AP Physics

    A motorcycle officer hidden at an intersection observes a car driven by an oblivious driver who ignores a stop sign and continues through the intersection at constant speed. The police officer takes off in pursuit 1.56 s after the car has passed the stop

    asked by Nick
  29. pre-calculus urgent

    The first term of an arithmetic sequence is 6, and the tenth term is 2. (a) Find the common difference d. d = Find the 100th term of the sequence. a100 = (b) Find the partial sum of the first ten terms. S10 = how do i do this, there's an example I tried

    asked by Alex
  30. Algebra ASAP

    Pls help me out, I really need help. A puppy weighs 0.85 lb at birth, and each week he gains 29% in weight. Let an be his weight in pounds at the end of his nth week of life. (a) Find a formula for an. an = (b) How much does the puppy weigh when he is six

    asked by hey
  31. Reading

    29. Whig Committee of New York, 199 Whig National Convention of 1852, 132-33 Whig National Convention of 1856, 168 Whig Party, 9, 10, 22, 26, 55, 71, 88-90, 132, 167 agenda of, 43-44 demise of, 130, (NNN) NNNNllllinois election and, 149 of New York,

    asked by BARNETTA
  32. AP Physics

    A passenger train is traveling at 27 m/s when the engineer sees a freight train 345 m ahead of his train traveling in the same direction on the same track. The freight train is moving at a speed of 5.9 m/s. (a) If the reaction time of the engineer is 0.36

    asked by Nick
  33. math asap

    this is a difficult question for me please help! thankyou A sequence is defined recursively by an + 1 = 3an − n, a1 = 2. Find the first six terms of the sequence. a1 = a2 = a3 = a4 = a5 = a6 =

    asked by lene
  34. Chemistry

    How many liters of Carbon Dioxide are formed by burning 6011.0 grams of C3H7OH with excess of oxygen gas and is carried out at 20.00 degrees Celsius, and 1.150 atm of pressure. I know this needs PV=nRT but the burning and excess part is throwing me off.

    asked by Alicia
  35. physics

    Light of certain wavelength in a vacuum has wavelength of 438 nm if it propagates in water and 390 nm if it propagates in benzene. Calculate the ratio of refractive index of water to the refractive index of benzene.

    asked by aiman
  36. Reading

    40. From Laurencaville, take highway 9 for 20 miles (about 30 minutes) until you reach the third katetown?? Exit (exit 116). Turn north on Park Street and drive for 3.1 miles, past six stop lights. Take a left on 3rd Avenue and drive six blocks. The store

    asked by BARNETTA
  37. Reading

    Siberia is a giant, semi-arctic region encompassing most of northern Asia. Most of Siberia is, or has once been, part of Russia or the Soviet Union. Much of Siberia is frozen and empty. Though Siberia contributes almost 80% of Russia's land area, only a

    asked by BARNETTA
  38. Math

    Kate made a birthday cake for Bryan’s second birthday. One of the guests on the party (who is a preschool director) thought how awesome it would be to have a cake like this for the Open House next week! She asked Kate to make one for her. She wanted to

    asked by Althea
  39. English

    Which of the following sentences is an example of first person narrative voice? A. You were simultaneously exhausted and exhilarated following the cross-country trip. B. The cross-country trip was simultaneously exhausting and exhilarating for him. C. She

    asked by BARNETTA
  40. Reading

    46. Count' -verb 1. to list numbers sequentially 2. to add up; enumerate 3. to include in a reckoning 4. to deserve consideration, to have merit -noun 5. the act of counting, a calculation 6. the total number resulting from a count 7. Baseball, the number

    asked by BARNETTA
  41. Math

    this is a difficult question for me please help! thankyou A sequence is defined recursively by an + 1 = 3an − n, a1 = 2. Find the first six terms of the sequence. a1 = a2 = a3 = a4 = a5 = a6 =

    asked by lene
  42. Chemistry

    All Brønsted-Lowry acids A. are aqueous solutions. B. can act as Arrhenius acids. C. donate protons. D. all of the above I got C but could it be D?

    asked by sydney
  43. Algebra

    Use absolute value notation. The distance between x and -10 is at least 6. |x-(-10)|>or=6 Is that notation correct?

    asked by James
  44. Reading

    45. 'lead (led). n 1. Position at the front 2. initiative 3. One that leads. 4. Indication or clue. 5. A principal role in a dramatic production ‘lead (led) v. 1 to guide on a way by going in advance. 2. To direct on a course. 3. To direct the

    asked by BARNETTA
  45. lasmocol

    What is the molarity of 1.70 of silver trioxonitrate(v) in 500cm

    asked by sami kun
  46. physics

    which type of forces does a proton exerts on a proton inside nucleus? my answer-repulsion force

    asked by rahul
  47. Reading

    Setting Up Your Universal Remote Control Searching For Your Device Codes For example, to search for a code for your TV: 50. Turn on your TV 1. On the remote control, press TV once; the button will blink once. Then press and hold SETUP until the TV key

    asked by BARNETTA
  48. Physics

    Take element Z = 24 from the periodic table. Ionize it 23 times so that there is only one electron left orbiting around the nucleus. What is the ground state energy of the electron?

    asked by Julie
  49. Reading

    2. Which of the following sentences is written correctly? A When properly designed, an automobile can achieve great fuel efficiency. B. When properly designed an automobile can achieve great fuel efficiency. C. When properly designed, great fuel efficiency

    asked by BARNETTA
  50. English

    1. On the remote control, press TV once; the button will blink once. Then press and hold SETUP until the TV key blinks twice, then release SETUP 2. Enter 9-9-1. The key will blink twice. 3. Aim the remote control at the TV and slowly alternate between

    asked by BARNETTA
  51. Reading

    44. Super tires Full set special $ 175 30,000 plus 10, 000 miles warranty Balance, rotation, and Alignment included Free disposal of old tires ($50 value) Good Tread Tires Four tires $ 150.00 40,000 miles warrantly Balance, rotation and Alignment $25 Free

    asked by BARNETTA
  52. Masiphathisane

    What Career Iwill Have To Choose If I'm Doing Maths Lit And Accounting After Grade12

    asked by Asanele Ngxito
  53. Science

    How does water acts as an insulator and a shock absorber?

    asked by @@@Kee
  54. Life science

    Explain the scientific interpretation of the fossils found in the cradle of humankind.

    asked by Itumeleng
  55. math

    a certain alloy contains 5.25% cooper. how much cooper is there in a piece weighing 200 pounds.

    asked by james
  56. math

    edgar earns 200 dollars a week plus a 15% commission on all sales over 1,000 dollars.if edgar sells for one week or 2,500 dollars what is his gross pay for that one week.

    asked by james
  57. ENGLISH

    WHICH OF THE FOLOWING SENTENCES USES THE BEST CLOSE-UP WORDS?

    asked by JAMESHA
  58. elim high school

    assess the extent to which bad road users has a direct impact on the physical, emotinal, social and economic aspects to the family, the community and the country

    asked by mulalo mpho ramaru
  59. Reading

    40. From Laurencaville, take highway 9 for 20 miles (about 30 minutes) until you reach the third katetown?? Exit (exit 116). Turn north on Park Street and drive for 3.1 miles, past six stop lights. Take a left on 3rd Avenue and drive six blocks. The store

    asked by BARNETTA
  60. Reading

    38. From Laurencaville, take highway 9 for 20 miles (about 30 minutes) until you reach the third katetown?? Exit (exit 116). Turn north on Park Street and drive for 3.1 miles, past six stop lights. Take a left on 3rd Avenue and drive six blocks. The store

    asked by BARNETTA
  61. speech

    i need an example on " You will choose an aspect of your life/personality to highlight and speak about to give your audience a better idea of who you are. Your goal is not to reveal as much information as possible to your audience, your goal is to let some

    asked by lauren
  62. Urgent math

    pls help out with this example as well. Find the term containing x^3 in the binomial expansion of (3x − 3)^10

    asked by Aileen
  63. Reading

    36 Performing Arts Center Classical Series Concerts Single ticket price: Saturday night: Orchestra – Center : $55 Orchestra – Right Center/Right: $35 Orchestra – Left Center/ Left $45 Mid/Rear Balcony: $50 Center Balcony : $55 Dress Circle: $60 Rear

    asked by BARNETTA
  64. Reading

    25. A customer who purchases a Super Pack Unlimited indoor/outdoor pass most likely chose this option because he: A. likes to take repeated rides on the go-karts and bumper cars. B. has small children who want to play all day in the Fun Center. C. wants to

    asked by BARNETTA
  65. Afro

    A man roll a boat in still water at a speed of 1m/s. The man set out to roll the boat in a river from a to b. The water in the river flows at 0.5m/s in the opposite direction.Determine the violocity of the boat through the water.

    asked by Fakorede segun
  66. pre-algebra

    4/5x + 5 < -3 A. x < –10 B. x ≤ 0 C. x > 5 D. x ≥ –10

    asked by bee
  67. criminology

    What do futurists predict the explanations for crime in the future will be? A. More eclectic, less traditional B. More collective, less individualistic C. More theoretical, less pragmatic D. More social, less biological

    asked by londyn
  68. Math

    can anybody show me step by step? Find the sum. (a) 1/3+ 2/3^2+ 2^2/3^3+ 2^3/3^4+.......... + 2^9/3^10 S10 = (b) 1 + 1/2^1/2+ 1/2+ 1/2^3/2+ S =

    asked by lene
  69. Urgent math

    so I tried to expand this question and I got x^3 *x2, i don't know if it's right but if not can I get a step by step explanation please, Expand (2x + y^2)^5. (Simplify your answer completely.)

    asked by Aileen
  70. math!!!!!!!!!!!!!

    what is 2/5 as a regular number

    asked by anon
  71. math, pls help ASAP

    what is 2/5 of 25

    asked by anon
  72. Reading

    41. Choosing the Resolution for Your Photos Resolution Purpose L (Large) 2592x1944 pixels Print larger that A 4 size prints (8.3 x 11.7 in.) Print larger than letter size prints (8.5 x 11 in.) M1 (Medium 1) 2048 x 1536 Print up to A4 size prints. Prints up

    asked by BARNETTA
  73. math

    The length of the office room is 11.5 m & width is 12.5 m. How much carpet is required for covering the floor ?

    asked by mrajput
  74. math

    With two pumps it takes 60 hrs to empty an oil tanker. How much time will taken with five pumps ?

    asked by mrajput
  75. math

    Rodney and Cauls’s houses having distance of eleven km Rodney start from his house by walking at the speed of 6 km / hr , Caouls at 5 km / hr at what distane they will meet , if Rodney start his journey later by 5 minutes then which time they will meet ?

    asked by mrajput
  76. Alg 2

    pls help with this expansion of the binomial. [(6-a)x+ay]^12 ?

    asked by franey
  77. Algebra

    Factor: x^4(4) (2x+1)^3 (2x)+(2x+1)^4 (4x^3) Please help! I cannot figure out how to go about this problem

    asked by Maddy
  78. Algebra

    Factor completely: X^3 (3)(x^2+1)^2 (2x)+(x^2+1)^3 (3x^2) Please help. I have tried multiple times.

    asked by Adeline
  79. Calculus

    As x goes to zero, what is the limit of (( 1/ x+2) -(1/2)) / x? I know the answer is -1/4, but I'm confused on how to get that answer. I think I have to multiply by the reciprocal.

    asked by Anonymous
  80. Algebra

    Factor completely: X^3n+y^3n Do I factor it as a cube? Can't figure it out

    asked by John
  81. Algebra

    Rewrite each expression with positive exponents and simplify. X^2•x^n/x^3•x^n What does this question mean? Do I just cancel things out? Please help

    asked by James
  82. physics

    An insect of height 1.5 cm is 13cm from a converging lens of focal length 13.5 cm. Determine the position, height and properties of the image formed.

    asked by aiman
  83. English

    How do you diagram the sentence, "I will do my homework later tonight."

    asked by Jasmine
  84. Algebra

    Rationalize the denominator. The twos are outside of the square root signs. 5/(sqrt14)-2 x (sqrt14)+2/(sqrt14)+2 The answer is sqrt14+2/2 I am having trouible understanding hoe to get rid of the 5

    asked by Maddy
  85. geometry d the sspeed of the bicycle in m/s

    a bicycle wheel has 77cm in diameter and makes revolution per second .find the speed of the bicycle in m/s

    asked by sai
  86. maths

    since a rectangle forms two area of a circle shouldn't it also form two circumference in a cylinder

    asked by jay
  87. English

    . Extending her arms over the left-field wall, the baseball plummeted toward the fan, and she caught it cleanly on the fly before displaying the home run ball for all to see. Which of the following phrases is misplaced in the sentence above? A. Extending

    asked by bARNETTA