Questions Asked on
April 14, 2012

  1. physics

    A droplet of ink in an industrial ink-jet printer carries a charge of 1.1×10−10 C and is deflected onto paper by a force of 3.7×10−4 N.Find the strength of the electric field to produce this force.

    asked by Helen
  2. Physics Question

    A shaving/makeup mirror is designed to magnify your face by a factor of 1.27 when your face is placed 23.5 cm in front of it. What type of mirror is it? Describe the type of image that it makes of your face. Calculate the required radius of curvature for

    asked by ###Nadine####
  3. Physics

    Your lab partner says that a battery provides not a source of constant current, but a source of constant voltage. Do you agree or disagree and why? Also I am really confused with series and parallel circuits like when voltage, current, and resistance

    asked by rebekah
  4. math

    Please explain in detail so I can understand how to do it: A football player punts a ball. The path of the ball can be modeled by the equation y = -0.004x^2 + x +2.5, where x is the horizontal distance, in feet, the ball travels and y is the height in

    asked by Mary18
  5. chem stoichiometry

    Acetylene(C2H2) burns in oxygen to form carbon monoxide and water. How many liters of oxygen(at STP) are needed to burn 25.0 L of acetylene (at STP)?

    asked by linda
  6. Chemistry

    Complete and balance the following equation S(s)+HNO3(aq)--->H2SO3(aq)+N2O(g) An explanation would be excellent, thanks in advance.

    asked by Jim
  7. AP CHEMISTRY

    A voltaic cell is constructed that uses the following half-cell reactions. Cu+(aq) + e− -> Cu(s) I2(s) + 2 e− -> 2 I−(aq) The cell is operated at 298 K with [Cu+ ] = 2.7 M and [I− ] = 2.7 M. (a) Determine E for the cell at these concentrations. (b)

    asked by DAN
  8. Chemistry

    A buffer solution is prepared by adding 14.37g of NaC2H3O2 and 16.00g of acetic acid to enough water to make 500mL of solution. What is the initial concentration of C2H3O2 in the solution? Ka(HC2H3O2)=1.8e-5 HC2H3O2 = H3O+ + c2h3O2 the molar mass of

    asked by Hannah
  9. Science - physics

    A circular wire of radius R carries a total charge Q distributed uniformly over its circumference. A small length of wire subtending angle teta at the centre is cut off. Find the electric field at the centre due to the remaining portion

    asked by uma
  10. Chemistry

    Nitrogen Monoxide reacts with hydrogen gas to form nitrogen gas and water (vapor). (i). write a balanced equation for this reaction. (ii). The reaction is experimentally found to be (approx) first-order in H2 and second order in in NO. Write the form if

    asked by Crystal
  11. Calculus

    The voltage signal from a standard european wall socket can be described by the equation V(t) = 325Sin100(pie)t, where t is time in seconds and v is voltage at time t A) find the maximum and minimum voltage levels and times at which they occur B) determine

    asked by Julie
  12. Chemistry(Please help)

    Calculate the pH of an aqueous solution of 0.15 M potassium carbonate. I know that pH = -log(H30+) but I am not sure how to start this problem.

    asked by Hannah
  13. Chemistry

    Complete and balance the following equation: Cr2O7{2-}(aq)+CH3OH(aq)-->HCO2H(aq)+Cr{3+}(aq) Any feedback would be great, thank you so much.

    asked by Ethan
  14. statistics

    20. Explain how the power of a hypothesis test is influenced by each of the following. Assume that all other factors are held constant. a. Increasing the alpha level from .01 to .05. b. Changing from a one-tailed test to a two-tailed test.

    asked by melissa
  15. Calculus. I need help!

    Evaluate the indefinite integral (a.)∫√(cotx)csc^2xdx (b.)∫sec^3xtanxdx

    asked by MILY
  16. Geometric Series (Algebra 2)

    I need some assistance or a formula when trying to find the first term of geometric series please! I don't understand this!!!! What is the first term of a geometric series with a summation of 289, 5 terms and a common ratio of 1/2?

    asked by Greg
  17. Chemistry help

    NaOH+H2SO4-> H2o+Na2SO4? How many moles of NaOH required to neutralize 1 mole H2SO4?

    asked by Lee**************
  18. calculus

    Suppose a tree on your land has a radius of 3 inches and increases in radius one-fourth inch a year. How many years, y, to the nearest tenth will it take for the volume of the tree to double? A. 2 years B. 3.6 years C. 6.1 years D. 6.2 years

    asked by Anonymous
  19. Math

    Using h(t)=gt^2+v0t+h0, where g= -16, h0= initial height, v0= initial velocity, and t= time A rocket is fired into the air from the top of a building that is 200 feet tall. The initial velocity of the rocket is 600 feet/sec. If necessary, round answers to

    asked by Brandon
  20. physics

    Two pellets, each with a charge of 0.80 microcoulomb (8.0×10−7 C), are located 4.0 cm (4.0×10−2 m) apart. Find the electric force between them.

    asked by Helen
  21. Physics

    A 3.75 kg cat leaps off the floor with a launch speed of 4.0 m/s at 30° to the ground to pounce on a mouse which is running away from it at 1.5 m/s. The launch lasts 0.15 s, after which the cat is airborne. 3.1 Determine the net average force on the cat

    asked by Caroline Smith
  22. Physics

    what 2 properties of carbon make it a good material to use for motor brushes?

    asked by Lauren
  23. Chemistry

    what mass of AgBr is formed when a solution containing 3.45 g of KBr is mixed with a solution containing 7.28 g AgNO3?

    asked by David
  24. PSY315

    Based on the information given for each of the following studies, decide whether to reject the null hypothesis. For each, give (a) the Z-score cutoff (or cutoffs) on the comparison distribution at which the null hypothesis should be rejected,(b) the Z

    asked by Ashley
  25. physics

    Just as a car tops a 51 meter high hill with a speed of 85 km/h it runs out of gas and coasts from there, without friction or drag. How high, to the nearest meter, will the car coast up the next hill?

    asked by m
  26. Calculus I

    section is on Optimization: Find the point on the curve y = x^2 closest to the point (3, 4)

    asked by Sandra Gibson
  27. Chemistry

    the initial concentration of each component was: 0.100 M H2(g), 0.100M I2(g), and 0.050 M HI(g) . The Keq = 50.2. Calculate the concentration of each component when equilibrium has been reached. The balanced chemical equation for this reactions is: H2(g) +

    asked by Steve
  28. tax

    Which of the following itemized deductions is not allowed for AMT? A. Miscellaneous expenses B. Depreciation C. Medical expenses D. Charitable contributions is it D

    asked by Andy
  29. physics

    An energy of 6.0×10−2 J is stored in the metal sphere on top of a Van de Graaff generator. A spark carrying 1.0 micro-coulomb (1.0×10−6 C) discharges the sphere.Find the sphere's potential relative to ground. last one for the night

    asked by Helen
  30. Finance

    Brand Advertising is offered a 3/10 net 40 trade discount by its supplier. In the past Brand has been able to ger away with paying for supplies on credit in 60 days. Since it doesn't have money on hand to take advantage of the discount, it tries to

    asked by Alison
  31. Calculus

    Could someone please explain on how to do this question step-by-step. Thank you! A bolt is being loosened by a 40 cm wrench. The torque in this situation has a magnitude of 12 J and the force makes an angle of 60 degree with the wrench. What is the

    asked by Antia
  32. Chemistry PLEASE HELP!!

    Procedure: 1. Calculate the mass of iron(II) ammonium sulfate hexahydrate, Fe(NH©þ)©ü(SO©þ)©ü*6H©üO (MW = 392.14) required to make 100 mL of solution that is 0.2M in Fe©÷⁺ ions. You will be asked to show your calculation in the Assignment. 2.

    asked by Betsey
  33. physics

    A steel (Young's modulus 2.0 x 1011 N/m2) wire is strung between two supports attached to a ceiling. Initially, there is no tension in the wire when it is horizontal. A 88-N picture is then hung from the center of the wire, as the drawing illustrates, so

    asked by robert
  34. physics

    Which of these is the same in identical branches of a parallel circuit? A) All of these.B) Voltage.C) Current.D) None of theseE) Resistance. again my textbook says that voltage is the one that the paths are the same,is it all of these?

    asked by Christy
  35. Physics

    A block with mass m1 on a plane inclined at angle  to the horizontal is connected to a second hanging block with mass m2 by a cord passing over a small, frictionless pulley, as shown. The coefficient of static friction is us and the coefficient of

    asked by modjadji
  36. Chemistry

    Draw a reaction profile (diagram of energy vs reaction coordinate) for a hypothetical reaction AB +C A+BC in which the foward reaction has an activation energy of 100kJ mol-1 and the backward reaction has an activation energy of 75kJ mol-1. (ii). a

    asked by Crystal
  37. Math- Trig

    1. Determine the exact value of cos^-1 (pi/2). Give number and explanaton. 2. Determine the exact value of tan^-1(sq. root 3). with explanation. 3. Determine exact value of cos(cos^-1(19 pi)). with explanation. 4. Determine the exact value of sin(sin^-1(20

    asked by Crystal
  38. Life orientation

    Five ways in which you critically discuss how life style /behaviour of cancer impact on the teenager ?

    asked by Mapule
  39. 12th Grade Life Orientation

    In 15 lines critically discuss 5 ways in which the human or environmetal problem impacts on the community

    asked by Motsatsi
  40. CHEMESTRY

    C3H8+5O2=3CO2+H2O How many liters of propaine (d=0.585g/ml) will produce 1.25L of water (d=1.00g/mL)?

    asked by Anonymous
  41. anti-derivative help!!

    Given f"(x)=-8sin3x and f'(0)=-1 and f(0)=-6. Find f(pi/5). i got stuck with f(pi/f) f"(x)=-8sin3x f'(x)=8cos3x+c f'(0)=8cos3(0)+c=-1 c=-9 f'(x)=8cos3x-9 f(x)=-8sin3x-9x+c f(0)=-8sin3(0)-9(0)+c=-6 c=-6 f(pi/5)-8sin3(pi/5)-9(pi/5)-6. so am i right?

    asked by lindsay
  42. chem

    An equivalent weight of an acid is the mass of the acid needed to deliver 1 mole of . The of an acid solution is the number of equivalents of in 1 liter of solution.

    asked by Anonymous
  43. Math

    Simplifying (4ab x (sqrt 2b)) - (3a x (sqrt18b^3)) + (7ab x (sqrt6b))

    asked by Mike
  44. physics

    Electric current is a flow of electric charge that moves due to an electric pressure is called what?. A) wattage.B) voltage.C) All of these to some degree.D) None of these.E) amperage. I chose ampere, this is what my textbook tells me and I got it wrong

    asked by Christy
  45. Chemistry

    What is the boiling point of ethanol when the atmospheric pressure is 60kPa?

    asked by Gerald
  46. Chemistry

    A saturated aqueous solution of calcium hydroxide has a pH of 12.25. What is the [Ca 2+] of such a solution?

    asked by Andy
  47. health sciences

    d. You want to determine the amount of Chlorophyll (Molecular Weight: 893.51 g/mol) in a 50 ml marine sample. Before analysis by UV spectroscopy, 5 ml of the solution was diluted to 80 ml with DI water. The diluted sample was analysed using UV spectroscopy

    asked by rani tabasum
  48. Calculus

    Differentiate A) y = -Cos2x B) y = Sin2tetta - 2Cos2tetta C) f(tetta) = negative pie*Sin(2tetta - pie) Tetta means that zero with a line going horizontally across mid zero. Like In trigonometric identities you have ___ tetta....

    asked by Julie
  49. chemistry

    We had a Chemistry lab for buffer system, we used HCl and NAOH. We did a graph ( PH vs ml of HCL and NaOH, we told to estimate the buffer capacity using the graph. How to do this?

    asked by Mima
  50. physics

    There are electrons in the filament of the ac lamp in your bedroom. When you turn on the lamp and it glows, the glowing comes from A) the positive charges that flow in the filament.B) the same electrons.C) different electrons; the ones that flow in the

    asked by Jim
  51. physics

    How much resistance must a 9-V device have to keep the current about 1 A? A) None of these.B) 1 ohm.C) 9 ohms.D) 4.5 ohms.E) 10 ohms

    asked by Jim
  52. math

    one out of every 4 students in a club is a girl.There are 20 students in the club.How many girls are in the club.How many boys are in the club??? explain.

    asked by katniss
  53. English

    Can you please check these sentences? Thank you very much. 1) Write an example for each of the incorrect verbs. 2) Write an example-sentence (?) for each of the verb you made wrong. 3) You shouldn't have phoned him. (He phoned and you regret it) 4) You

    asked by Matthew
  54. calculus

    For x>0 find and simplify the derivative of f(x)= arctan(x) + arctan(1/x). I've done the problem a few times and I keep getting (1)/(1+(x)^2)+(1)/(1+(1/(1/x)^2))(-x)^-2 but something about the answer is wrong and I cannot figure out what.

    asked by casidhe
  55. Algebra

    The following problem must be solved 3 different ways in which X=smallest angle for problem 1. Problem 2 would be X=medium sized angle. Problem 3 would start with X=largest angle. I was able to figure out X=smallest angle, but I am stumped on the other 2

    asked by Angie
  56. Biology

    Having a really hard time following this diagram of the Kreb cycle and I need to answer these questions: 1. Total number of NADH molecules produced for each glucose molecule in the Krebs cycle. A)2 B)4 C)6 D)8 E)10 2. The theoretical yield of ATP from each

    asked by DS
  57. ENGL--STILL NEED HELP!!

    I need to write 1,000 words which focuses upon how the denotation, connotation and/or level of diction found in the majority of the italicized words plays against the level of diction found in most of the rest of the poem. Unfortunately, I don't know what

    asked by Witchita
  58. biology

    is insomnia the same thing as sleep deprivation. im pretty sure they are different but i just wanted to check. also what in the brain causes insomnia. What parts of the brain create it and what are the functions?

    asked by hannah
  59. physics

    Electronic types neglect the force of gravity on electrons.To see why, compute the force of Earth's gravity on an electron and compare it with the force exerted on the electron by an electric field of magnitude 6000 V/m (a relatively small field). The mass

    asked by Helen
  60. physics

    i need three different project topic in physics

    asked by Joanna
  61. statistics

    One important task in experiment design is to determine the sample size needed to support the conclusion. A manufacturer for a specific assistive device claims that its battery can last longer than 15 days without re-charging. To check if this claim is

    asked by mariha
  62. math

    Please explain in detail how to solve this problem: h = -16t^2 + 156t + 105

    asked by Mary
  63. math

    In a local election,53,400 people voted. This was a decrease of 7% over the last election.How many people voted in the last election? Round to the nearest whole person

    asked by carol
  64. math

    How long a spaceship traveling at a steady speed of 14km/s to reach Jupiter?

    asked by Ken
  65. Calculus I

    Section Area: Use Riemann sums and a limit to compute the exact area under the curve. y = 4x^2 - x on (a) [-0,1]; (b) [-1, 1]; (c) [1, 3]

    asked by Sandra Gibson
  66. physics

    The actual speed of electrons drifting along in a common electric circuit is about the speed of which of the following?. A) sound.B) a fast-moving automobile.C) light.D) a slow-moving snail.

    asked by britches
  67. Plz help!!! algebra

    convert the decimal 0.6 to a fraction by writing it as a infinite series. I really have no idea how to do this can anyone please help me?

    asked by ashley
  68. physics

    The lowest resistance in a common electric circuit containing a common lamp is in which of these A) connecting wires.B) Both of these.C) Neither of these.D) lamp filament. I would say lamp filament is this correct?

    asked by Christy
  69. ( Online Class ) Consumer Math

    Adjusting a budget - Given the net income, the percent budgeted for two variable expenses, and the amount of an unexpected bill, determine if there is enough money in the variable expense items to cover the amount of the unexpected expense or if the bill

    asked by Naty
  70. physics

    The key ingredient in anything magnetic is which of the following?. A) moving electric charge.B) magnetic domains that are aligned C) pairs of magnetic poles.D) the surrounding magnetic field.E) magnetic polarization.

    asked by Christy
  71. us history

    where did james farmer live in 1969. was this his permanent residence? aka for his job did he live at the white house or at his home? thanks!!

    asked by rebekah
  72. Chemistry help

    COVALENT BONDS BETWEEN THE MONOMERS OF AN ENZYME MACRO MOLECULE ARE?

    asked by Lee**************
  73. Medical Terminology

    A mother breast feeding her babay is an example of -------immunity. A. active natural B.passive natural C. passive acquireed D. active acquired. My answer is (a.) can someone check my answer.

    asked by Brenna
  74. physics

    The shape of a magnetic field about a current-carrying wire is much the same as the shape of an electric field ____________. A) All of these.B) None of these.C) about a point electric charge.D) between two opposite point charges.E) between the plates of a

    asked by Jim
  75. physics

    An electric motor best makes use of the fact that on a current-carrying wire in a magnetic field there exists which of these?. A) electromagnetic energy to be tapped.B) rotation.C) All of these.D) a force.E) a changing voltage. I say it is roation or all

    asked by Christy
  76. Math

    Solve: Richard has 17 yards of material. How many tote bags can he make if each bag takes 2/3 yards of material to make?

    asked by Susan
  77. Calculus

    Use the algorithm for curve sketching to sketch the graph of each function. a) f(x) 4x^3+6x^2-24x-2 1. First to find intercepts y=0 0=4x^3+6x^2-24x-2 =2(2x^3+3x^3-12x-1) I don't know how to find the x-intercept. I can't use quadratic formula or synthetic

    asked by Jake
  78. world issues

    I have been looking every where for a volunteer program description. I have read my book and look on the internet and still do not understand can someone show me how to find a sample volunteer program description that works with gardening or explain what

    asked by RT
  79. physics

    In any region of space where a magnetic field is changing in time, there is which of these?. A) None of these.B) induced electric field, also changing in time.C) All of these.D) even larger magnetic field.E) induced gravitational field.

    asked by Phillip
  80. math

    If 611 men at a conference comprise 65% of all people at the conference, how many people are at the conference?

    asked by Dee
  81. Introduction to Medical Terminology

    If a patient is lying on his back, face upward, he's in the ------position. A. shock B.anatomical C.prone D. recumbent can someone check my answer which is (D )

    asked by Brenna
  82. Science

    What is the boiling point of ethanol when the atmospheric pressure is 60kPa? I decided to repost this ? under Science instead of Chemistry. Thanks.

    asked by Gerald
  83. accounting

    Last year Angela used her 60% margin account and purchased 100 shares of stock at a price of $33 a share. Today she sold this stock for $36 a share. Angela paid a total of $70 in margin interest for the year. Ignoring transaction costs, what rate of return

    asked by Anonymous
  84. calculus

    2. A bullet is fired from the ground at an angle of 45o above the horizontal. What initial speed vo must the bullet have in order to hit a point 550 ft high on a tower located 600 ft away (ignoring air resistance)? 3. The Giant Ferris Wheel in Vienna has

    asked by nady
  85. calculus anti-derivation

    Given that the graph of f(x) passes through the point (2,5) and that the slope of its tangent line at (x, f(x))is 3x+5, what is f(3) ?

    asked by lindsay
  86. math

    The section is on concavity and the second derivative test, the question is: Determine all significant features and sketch a graph: f(x) = x / x + 2

    asked by Sandra Gibson
  87. math

    Determine exact value of cos(cos^-1(19 pi)). is this the cos (a+b)= cos a cos b- sina sin b? or is it something different. When plugging it in the calculator, do we enter it with cos and then the (cos^-1(19 pi)).

    asked by Anonymous
  88. Calculus I

    Section The fundamental Theorem of Calculus: Use Part I of the fundamental Theorem to compute each integral exactly. 4 | 4 / 1 + x^2 dx 0

    asked by Sandra Gibson
  89. Calculus I

    Section Antiderivatives: Find the function f(x) satisfying the given conditions. f''(t) = 4 + 6t, f(1) = 3, f(-1) = -2

    asked by Sandra Gibson
  90. Math

    What is the surface area in square units? top= 10 square units bottom= 10 square units right= 4 square units left= 4 square units front= 10 square units back= 10 square units

    asked by Mia please helpppp
  91. Calculus

    Find the revenue function R(x) when P(x) is P9x)= 50- 0.002x I am getting 50x -0.002x^2 can anyone check, thanks.

    asked by Math-check
  92. math

    please explain the steps: Jim Williamson began a 96-mile bicycle trip to build up stamina for a triathlete competition.Unfortunately, his bicycle chain broke, so he finished the trip walking. The whole trip took 6 hours.If Jim walks at a rate of 4 miles

    asked by micah
  93. American Literature

    wwho love it and understand it are the people who own it—for a little while”

    asked by Christian
  94. English

    I left out a few things. Thank you very much for helping me. 1) Amnesty works by collecting information. When it has a proof that a person is a 'Prisoner of Conscience', then a person's case is handed over to a local group. Question: Amnesty gathers

    asked by Matthew
  95. Math 7

    A circle has a cirumference that measures 18(pi) inchies. What is the raduis in inches of the circle? C = 2(pi)r a) 6 b) 9 c) 18 d) 36 My answer - 9 reason - haft of 18 is 9 is my answer is correct?

    asked by Laruen
  96. physics

    A galvanometer best makes use of the fact that there exists a magnetic field in which of the these?. A) about aligned magnetic domains.B) wherever a change of voltage occurs.C) about a current-carrying wire.D) between the poles of a U-shaped magnet.E)

    asked by Jim
  97. Science

    Calculate the acceleration of a turtle whose speed changes from 3 m/s to 72 m/s over a period of 17 seconds.

    asked by Suzie
  98. law

    Why are federal and state law enforcement agencies responsible for executing search warrants? How is this different from audit of accrediting organizations

    asked by Anonymous
  99. calculus

    find the second derivative of F(x)=3e^-2x(^2) to find the inflection points. I am trying but I don't think I'm finding the first derivative correctly.

    asked by casidhe
  100. physics

    Consider a transformer with a primary that has 50 turns of wire and a secondary of 250 turns. Then a 110-V input will produce an output of which of the following? A) 550 volts.B) 110 volts.C) 300 volts.D) 50 volts.E) 22 volts.

    asked by Jim
  101. COLLEGE CALCULUS. HELP!

    Evaluate the definite integral ∫(0,2) (x-1)^25 dx.. thats how i got stuck u=x-1, then du=dx =∫(0,2) u^25du =(1/26)u^26. i don't know what to do with integral (2,0)..

    asked by LILY
  102. math

    135/ = b/360

    asked by marie
  103. PHARMACY TEC

    THE SUBSECTION OF A DRUG MONOGRAPH THAT MAY INDICTE A CANCER-CAUSING POTENTIAL IS THE

    asked by Anonymous
  104. Microbiology

    what microbe causes the disease of Propionibacterium acnes? are there any other features of microbe that conctributes the ability to cause disease?

    asked by Anonymous
  105. Bio Anatomy

    do you guys know of any sites that describes in detail pathology of the occipital lobe? thanks

    asked by rebekah
  106. math

    if you draw two cards from a standard deck of 52 cards without replacement find: a. P(King first, Jack second) b. P( face card first, ace second) c. P(2 aces

    asked by Anonymous
  107. physics - electrostatics

    A charged particle of mass m of 1 kg and charge q = 2 uC is thrown from a horizontal ground at an angle teta = 45 degree with speed 20 m/s. In space a horizontal electric field E = 2 x 10^7 V/m exist. Find the range on horizontal ground of the projectile

    asked by uma
  108. Math

    If f(x) is an anti-derivative (i.e. primitive) of x*e^(-x^2) and f(0)=1. Then f(1)=?

    asked by Anonymous
  109. Math

    Factor 3x^2-16X+K and find the value of K.

    asked by Hanu
  110. Math

    If integrating |2x|dx from -k to k equals 18 and k>0, then what is the value of k? many thanks!

    asked by Anonymous
  111. Life orientation

    Two institutions / community organizations that are involved in supporting or giving redress to these disasters of xenophobia.

    asked by Mapule
  112. Math

    In13/20 of its games, the tigers scored 6 or more runs. In what percent of its games did the tigers score 6 or more runs? A. 65%. C. 60% B. 62.5%. D. 55% Can some one explain

    asked by Leslie
  113. Math

    Find lim x->0 [(integrating t^3/(1+t^6)dt from 0 to x^2)/x^8].

    asked by Anonymous
  114. Maketing

    who are the organizational buyers of whirlpool products? I have Sears, Lowes, Best buys, and home depot. Is that what the questions is referring to and are there more?

    asked by Patiance
  115. Physics

    waves propagate down a 25gram string at 35 m/s. If the string has a length 1.5 meters, what iss the magnitude of the tension acting along it? i am stuck on how to figure this one out any help would be appriciated.

    asked by angela
  116. Calculus

    Determine derivative of each function A) y = 3xSinx B) f(t) = 2t^2Cos2t C) [(pie)tSin](pie(t)-6)

    asked by Julie
  117. Geometry

    Sonia counts the faces on a cube. Then, she connects a cube and counts the faces that she can see on the two cubes . How many faces will be visible if she ends up with a row of 5 cubes?

    asked by Mia
  118. math

    Determine the exact value of cos^-1 (pi/2). Give a number and an explanaton. ok so I have a graphing calculator, so i was just wanting to make sure that we plug it in as is? or do we have to change it to put it in the calculator. and im not quite sure what

    asked by Anonymous
  119. Physics

    How to attach a file with circuit diagram questions ?

    asked by Eileen
  120. math

    How long a spaceship traveling at a steady speed of 14km/s to reach Jupiter?

    asked by Ken
  121. calculus I

    Overview of curve sketching: Determine all significant features, and sketch a graph: f(x) = x66 - 10x^5 - 7x^4 + 80x + 12x^2 -192x

    asked by Sandra Gibson
  122. Calculus I

    Section is Integration by substitution: evaluate the indicated integral. tan 2x dx

    asked by Sandra Gibson
  123. Calculus I

    Section is Integration by Substitution: Evaluate the indicated integral. x^2 sec^2 x^3dx

    asked by Sandra Gibson
  124. History

    Name the 3 countries and their leaders of the Allied Powers during World War II.

    asked by Rezu
  125. business communication

    Which of the following would be the best revision of these sentences? "Our present receivables are in line with last year's. However, they exceed the budget. The reason they exceed the budget is that our goal for receivable investment was very

    asked by t
  126. Life orientation

    Identify and describe one environmental problem that causes ill health,accidents,crises and disasters in any community within South Africa

    asked by Kgomotso
  127. Introduction to Business

    What do you understand by the word "Business"

    asked by Innocent
  128. Calculus

    Determine the equation of the line through the origin and the point P(10,3) a) r=s(10,3), seR b) x=3t, y=10t, teR c) r=s(-3,10), seR d) r=s(3,10), seR

    asked by Antia
  129. physics

    a snow ball at 0 degrees celsius is thrown against a brick wall. if all the kinetic energy of the snowball turns to heat upon striking the wall, how fast must you throw the snowball to cause it to melt completely?

    asked by Anonymous
  130. Tax

    For AMT purposes, the standard deduction and personal exemptions are: A. allowed for AMT purposes. B. added as a positive AMT adjustment. C. subtracted as a negative AMT adjustment. D. reduced by half for AMT purposes. is it B

    asked by Andy
  131. Chemistry help

    A substance with pH of 3 is 10 times as Acidic as a substance with a pH of 4. *****or******* A substance with a pH 3 is twice as acidic as a substance with a pH of 4.

    asked by Lee
  132. physics

    The relationship between magnetic force and magnetic pole strength is similar to the relationship between which of the following?. A) force, mass, and distance as in Newton's law of gravity.B) All of these.C) current, voltage, and resistance as in Ohm's

    asked by Christy
  133. English

    I can't send you my post. What can I do, Writeacher? It appears a sentence saying that I've made error 403. What does that mean?

    asked by Henry1
  134. English

    I hope I can send you my post this time. Thank you, Writeacher. 19 He invited me to go for a motorbike ride. He requested me to go (is not possible?) He consented/agreed to drive me to the airport. 2) She said to me (she told me) that I could go to the

    asked by Matthew
  135. English

    I left out a last sentence. Thank you very much, Writeacher. He told me that I could go to the cinema provided that I finished (not I had finished) my homework.

    asked by Matthew
  136. physics

    last one for now..this is nowhere in my text or when I google it!! Which of these cities has the smallest incidence of cosmic rays? A) All about the same.B) New York City.C) Mexico City.D) Singapore.E) Anchorage.

    asked by Christy
  137. math

    why does the limit as x goes to infinity for (1+2/x)^x is e^2..can someone sow the steps..thanks

    asked by aaliya
  138. PHI 103

    In the truth table for an invalid argument

    asked by Todd
  139. Math

    Solve; multiply; then reduce to lowest terms 5 1/2 * 3/4

    asked by Susan
  140. principles of physics

    What is the key ingredient for electromagnetic induction? A) Motion.B) Energy.C) Force.D) Magnetic charge.E) Electric charge.

    asked by Phillip
  141. Math

    solve; divide; then reduce to lowest terms 1 4/7 / 4/10 and divide; then reduce to lowest terms 14/3 / 2 5/7

    asked by Susan
  142. Math

    Solve: Eighty people were invited to vote in thr extension club's elections and 9/10 of them voted. How many people voted in the elections?

    asked by Susan
  143. Math

    Solve: Subtract; then reduce answer to lowest terms 5/22 - 1/41

    asked by Susan
  144. Math

    1/14 + 3/16 + 4/14

    asked by Jane
  145. Speech (acronym help)

    I am doing a demo speech on how to make play dough and my four easy steps are 1. mix 2. add 3. stir and 4. kneed. These 4 make up MASK. I do not at all have to do my speech this way but I think it would be kinda cool if I could somehow relate a mask to the

    asked by Nicole
  146. 7th math

    what does 252/_= w/260

    asked by marie
  147. life orientation

    Identify and describe one environmental problem that may causes i'll health

    asked by obert
  148. physics

    Which of these is not an application of electromagnetic induction? A) Radio.B) None of these.C) Sound.D) Light.E) All of these are.

    asked by Phillip
  149. algebra2

    How do i enter my answer? so the question is Simplify: √3:(63x^5/(72y^6)) and for my answer i got x√3:(7x^2/(2y^2)) but my work page says: Enter example: For 4√3:(2), enter 4(2)^(1/3) so how do i enter my answer

    asked by Nancy
  150. Religion

    Youtube - The Maccabeats - Candlelight - Hanukkah Please watch the video above and tell me a piece of Catholic wisdom about a feast day or holiday in the Catholic church. Please please please please

    asked by Emily
  151. Math

    What types of expenditures could you include in a budget for a working student? Do you need to save money, or can you spend all of your wages? Give at least two examples and explain your answer.

    asked by Anonymous
  152. algebra

    the length of a rectangle is fixed at 23cm what lengths will make the premiter greater than 72cm

    asked by dede
  153. Algebra

    the length of a rectangle is fixed at 16cm what lengths will make the premiter greater than 82cm

    asked by Anonymous
  154. Algebra

    the length of a rectangle is fixed at 16cm what lengths will make the premiter greater than 82cm

    asked by Anonymous