1. Physics

    The man pushes/pulls with a force of 200N. The child and the slide combo has a mass of 30 kg and coefficient of friction is 0.15. The angle between the slide and the ground is 30 degrees. Find the acceleration of the child and what is the frictional forces

    asked by Thokozanitausi on January 10, 2017
  2. math

    Algebraically analyze the graph of the function f(x)= -6x^2+5x+2 . Find the vertex, axis of symmetry, range, minimum or maximum value, increasing and decreasing intervals, and zeros. Write the Quadratic equation in standard form. [Standard form is:

    asked by shannon on September 30, 2008
  3. financial accounts

    sandeep purchased a machinery for 21000 on 1 January 2001. the estimated life of the machine is 10 years after which its residual value will be 1000 only.find out the amount of depreciation and prepare machinery account for the first three years according

    asked by medi on January 24, 2015
  4. algebra

    A pilot heading his polane due north finds the actual direction of travel to be 5.2 NE. The planes's air speed is 315 mi/h, and the wind is from die west. Find the plane's ground speed and the velocity of the wind.

    asked by Arielle on November 2, 2011
  5. Calculus AB

    So the problem is "For x>0, d(lnx)/dx = 1/x and lne=1. A) find the tangent line approximation for ln 3 B) calculate the %error in approximation in part A. My teacher said the answer for part A is that 1/e, and I'm pretty confused. So far I the given info

    asked by Annie on January 30, 2017
  6. Geometric Progression

    A mortagge is taken out for $10,000 and is repaid by annual installments of $2,000. Interest is charged on the outstanding debt at 10%, calculated annually. If the first repayment is made one year the after the mortagage is taken out, find out the number

    asked by Math on September 25, 2012
  7. math

    If someone can explain how to do this problem so I can learn and understand. you have a sample of 50 people. Based on the histogram, find the proportion of weight loss values in the sample that are less than 10 pounds. Write your answer as a decimal, and

    asked by Mary Ann on February 9, 2015
  8. physics

    A man claims he can safely hold on to a 14.20 kg child in a head-on collision with a relative speed of 132. mi/h lasting for 0.100 s as long as he has his seat belt on. (a) Find the magnitude of the average force needed to hold onto the child

    asked by Anonymous on October 22, 2012
  9. Statistics

    find the 90% confidence interval for the variance and standard deviation of the ages of seniors at Oak Park College if a sample of 24 students has a standard deviation of 2.3 years. Assume the variable is normally distributed. Can someone explain the steps

    asked by Diandra on October 26, 2010
  10. Inventor

    Does anybody know a VERY imformative sight about James T. Russell? Search his name on google and you can find some websites. I think the first one is kinda good. I was searching for a specific site. web.mit.edu/invent/iow/russell.html This seems to be a

    asked by kaylmur on October 22, 2006
  11. physics

    A man claims he can safely hold on to a 11.90 kg child in a head-on collision with a relative speed of 117. mi/h lasting for 0.140 s as long as he has his seat belt on. (a) Find the magnitude of the average force needed to hold onto the child.

    asked by lib on October 15, 2012
  12. College Algebra

    A rancher needs to build four identical pens for his animals as shown in the diagram below. He has 240 feet of fencing. He does not need to put the fence along the barn. Find the length and width that would maximize the area of the pens. What is the

    asked by Cruz on April 28, 2014
  13. general physics

    Neutron stars consist only of neutrons and have unbelievably high densities. A typical mass and radius for a neutron star might be 6.3 x 1028 kg and 1.6 x 103 m. (a) Find the density of such a star. (b) If a dime (V = 2.0 x 10-7 m3) were made from this

    asked by please help with these practice problems on July 20, 2013
  14. Physics

    A youngster shoots a bottle cap up a 15.0° inclined board at 1.92 m/s. The cap slides in a straight line, slowing to 0.95 m/s after traveling some distance. If the coefficient of kinetic friction is 0.35, find that distance. I still get 0.315 m as the

    asked by Lindsay on December 9, 2007
  15. math

    Q2. An agriculture field is rectangular,with dimensions 100m by 42m.A 20m deep well of diameter 14m is dug in acorner of the field and the earth taken out is spread evenly over the remaining part of the field. Find the increase in the level of the field.

    asked by tarekegn on May 13, 2015
  16. PHYSICS!!!

    A boat moves at 7.00m/s relative to the water. (You can neglect relativity at these slow speeds.) The boat travels 100 m downstream and then 100 m upstream, returning to its original point. Find the time for the round trip

    asked by Amy on April 3, 2014
  17. Math

    A farmer uses 1034 meters of fencing to enclose a rectangular region and also to subdivide the region into three smaller rectangular regions by placing a fence parallel to one of the sides. Find the demensions that produce the greatest enclosed area.

    asked by Jackie on February 10, 2013
  18. physics

    A man claims he can safely hold on to a 14.20 kg child in a head-on collision with a relative speed of 132. mi/h lasting for 0.100 s as long as he has his seat belt on. (a) Find the magnitude of the average force needed to hold onto the child.

    asked by Anonymous on October 21, 2012
  19. Physics

    A bullet is fired vertically upward with an initial velocity of 98m/s from the top of a building 100m high, find a) the maximum height reached above the ground b) the total time before reaching the ground. C) the velocity on landing.

    asked by Clement on December 22, 2014
  20. physics 1

    Neutron stars consist only of neutrons and have unbelievably high densities. A typical mass and radius for a neutron star might be 5.6 x 1028 kg and 1.5 x 103 m. (a) Find the density of such a star. (b) If a dime (V = 2.0 x 10-7 m3) were made from this

    asked by Anonymous on April 22, 2014
  21. algebra

    Ok my math assignments look something ike this... The formula I=prt gives the amouunt of simple interest I earned by principal p at an annual interest rate r over t years. Solve this formula for p. B. Find p if r=0.035, t=4, and I=$420. c. Writing.. That

    asked by K8T on October 28, 2008
  22. physics please help

    the floors in a typical house are separated by a vertical distance of approximately 8.0 ft. a teenager (1.0x 10^2 lb) climbs the stairs between floors at a steady speed. find the power necessary to accomplish this if the stairs are climbed in (a) 10.0 s

    asked by taylor on February 24, 2012
  23. statistics

    Scores on a certain test are normally distributed with a variance of 91. A researcher wishes to estimate the mean score achieved by all adults on the test. Find the sample size needed to assure with 95.44 percent confidence that the sample mean will not

    asked by vina on June 25, 2011
  24. chemistry repost

    help, i'd like to know how to do this titration question: for example: a 1g sample of naoh contaminated with na2co3 is titrated with 0.500MHCl, and it is found that 46.5mL of HCl are required for neutralization. Find the percentage by mass Na2Co3. ( i did

    asked by alex on April 21, 2008
  25. solid mechanics

    A round bar 40 mm dia meter is subjected to an axial pull of 80 kn and reduction in diameter was found to be 0.00775mm.find poisson's ratio and young's modules for the material of the bar. take value of shear modules as 40kn/mm square.

    asked by sushil on July 25, 2013
  26. 7th grade math

    Sally makes an ice cream sundae. She can choose from vanilla, chocolate, or strawberry ice cream, fudge or caramel topping, and sprinkles or nuts. Write an expression to show how to find all the different combinations. I'm not sure how to do this. Any help

    asked by hunter on March 29, 2011
  27. Fisher projections

    Is there a good tutorial that you know of on Fisher projections? My book isn't helpful. Thanks from Sheryl http://www.bluffton.edu/~bergerd/Models/chiral6.html I don't have the right plug-in for this lesson and I can't find it. Is there another tutorial

    asked by Sheryl on November 1, 2006
  28. Physics 11 damon pls URGENT!

    The coefficiant of friction between rubber tires and wet pavement is 0.5, and the breaks are applied to 750kg car, intitally travelling at 30m/s and the car skids to a stop. What is size and difection of the acceleration. How do i find acceleration of the

    asked by Jaena MacCharly on October 31, 2016
  29. Calculus

    Determine if the Mean Value Theorem for Integrals applies to the function f(x) = x^3 − 16x on the interval [−1, 1]. If so, find the x-coordinates of the point(s) guaranteed to exist by the theorem. f(a)=15 f(b)=-15 f'(x)=3x^2-16 f'(c)=-15 I am now lost

    asked by Louis on April 3, 2017
  30. Physics equation?

    can anybody tell me an equation that can be used to find the number of electrons flowing through an LED every second? and also refer or give me any information that could explain another mechanism (apart from the fact that they denote energy to a single

    asked by AllyKat on February 11, 2008
  31. Algebra

    The volume in cubic feet of a box can be expressed as (x)=x^3-6x^2=8x , or as the product of three linear factors with integer coefficients. The width of the box is x-2.

Factor the polynomial to find linear expressions for the height and the

    asked by Ciaria on March 17, 2015
  32. Math

    an agriculture field is rectangular with dimensions 100m by 42m. A 20m deep well of diameter 14m is dug in corner of field and the earth taken out is spread evenly over the remaining part of the field .find the increase in the level of the the field.

    asked by Ephrem Tsegaye on May 6, 2019
  33. Statistics

    According to one survey, the mean serum cholesterol level for U.S. adults was 195.1, with a standard deviation of 41.5. A simple random sample of 95 adults is chosen. Find the 46 percentile for the sample mean. Write only a number as your answer. Round to

    asked by Tommy on October 6, 2015
  34. PHYSICS

    block 3M slides downward without friction. The string connecting blocks 3M and M is ideal (that is, its mass can be neglected and it is not stretchable). The pulley, a uniform solid disc of mass M and radius r , rotates without slipping. Find the

    asked by Ramana on December 6, 2013
  35. College physics

    Open Question: Two equal point charges of 5 µC are on the horizontal axis. One charge is at -10 cm, the other is at +10 cm.? These two charges don't move, they are STUCK, take the potential to be zero at infinity. Find the potential at the following

    asked by Julie on March 3, 2013
  36. plz explain or translate this question!!!

    How were things resolved? what does this sentence mean? how do you write your answer for this Q? The sentence means there were two or more differing opinions, measurements or explanations about something. You are supposed to find out which is correct, or

    asked by ashlee on December 7, 2006
  37. trigonometry

    hello fellas ... please help me with this,a farmer cooperator in an agricultural research wishes to fence the field in the form of right triangle. if one angle is 30° and the hypotenuse is 100m. find the cost of the fencing of the field if each meter of

    asked by scheyd on January 31, 2018
  38. Math

    Note: Enter your answer and show all the steps that you use to solve this problem in the space provided. Find the measure of x in the triangle. Show all your work. This is for the connexus test Essential Tools of Geometry Unit Test Part 2

    asked by Bella on May 3, 2019
  39. business ,media

    I have a coursework,and i was asked to write,the KEY FACTORS OF SUCCES,in a industry,which in case it happens to be the television industry.I need to write what we as the customers want from the tv,then we need to find out how the company can achieve the

    asked by orhidea on November 13, 2007
  40. Math

    URGENT! an artist intends to paint a 60-square-foot mural on a large wall that is 18 ft wide and 11 ft tall. find the dimensions of the mural if the artist leaves a border of uniform width around it. Pls show me how'd you get your answer

    asked by Laveeh on April 26, 2016
  41. Physics

    In the figure, a small 0.458 kg block slides down a frictionless surface through height h = 1.05 m and then sticks to a uniform vertical rod of mass M = 0.458 kg and length d = 2.70 m. The rod pivots about point O through angle θ before momentarily

    asked by Jezz on November 17, 2013
  42. Chemistry

    How much carbon dioxide is produced upon the complete combustion of 17.3L of propane (approximately content of one 5-gal tank)? Assume that the density of the liquid propane in the tank is 0.621 g/mL. Can you please list the steps! I am really confused! I

    asked by Maira on November 2, 2015
  43. History

    Hi i am doing a movie review on the film documentary "The Last Days" by James Moll. Could you help me find any footage from the film? or useful info. Also, could you give me some feedback on the following; "Why is it important for history students to learn

    asked by Carol M on April 6, 2008
  44. BIO PLEASE HELP!

    Identify the Protist and explain why you think it is what you said. We took dead leaves from outside, put them in boiling water then looked at them a week later. Link to image below! LINK: postimg. org/image/gu1201se9/ Ive attempted to look everywhere but

    asked by Jen on May 13, 2016
  45. calculus

    A traveller employs a man to drive him from Sydney to Melbourne. Running costs of the car, which are also paid by the traveller, are k*v^3 dollars per hour, v is the speed and k is a constant. Find the uniform speed that will minimize the total cost of the

    asked by jim_segs on November 17, 2013
  46. AP World Civilizations

    "The Protestant Reformation and the Counter-Reformation" Describe the religious division of Roman Catholicism and Protestantism geographically. Remember that the Lutheran and Calvinist faiths are Protestant as is the Church of England. Help!?!?! This is my

    asked by Kiley on February 16, 2009
  47. math

    a car weighing 15000N rounds a curve of 60m. radius banked at angle of 30 degrees.find the frictional force acting on the tires when the car is travelling at 100kph.The coefficient of friction between the tires and the road is 0.90.

    asked by randy on February 23, 2013
  48. math

    Following are the lengths in yards of the nine holes of the University Golf Course: 480,460,450,380,360,350,330,180,160 Find each of the following measures with respect to the lengths of the holes: d. Standard deviation 36.07263

    asked by is this right!!! on June 16, 2009
  49. Physics

    A400 N child is swing that is attached tow ropes 2m long , find the gravitational potential energy of the child-earth system relative to the red line level when ropes make an angle with the vertical .

    asked by Mariam on December 4, 2013
  50. SQL PROGRAMMING INFORMATION SYSTEMS

    In the following SQL query why do they have an independent letter then period then the table name? I seemed to have missed something in the reading and cannot find it for the life of me SELECT D.DNAME, E.ENAME FROM DEPT D LEFT OUTER JOIN EMP E ON D.DEPTNO

    asked by Phil on November 18, 2015
  51. physics

    A satellite is orbiting around a planet. its velocity is found to depend upon a.)Radius of orbit b.)mass of planet c.)universal gravitational constant(G) Using dimensional analysis find an expression relating orbital velocity to the above physical

    asked by sahstra kishore on April 25, 2016
  52. Eng. Dynamics

    A fire fighter is standing 20 m from a burning building as shown. She is holding a fire hose 1 m from the ground directed upward at 60° from horizontal with water coming out of the nozzle at 20 m/s. Find the distance from the edge of the roof to where the

    asked by Pat on January 23, 2011
  53. Biology

    Describe four ways that plants protect themselves from environmental conditions using one example from each of the following categories: a. hormone b. tropism c. plants structure d. plant process In your answer be sure to include the specific threat and

    asked by Michelle on March 11, 2008
  54. Chemistry

    I'm trying to do a lab, and I need to find the concentration of FeSCN+2 in five solutions based the calibration curve and the absorption. I have a calibration curve, the number of mLs and initial moles of Fe+3 and SCN-, the transmittances, the

    asked by Felliax on February 11, 2008
  55. Physics

    Suppose the magnitude of the "drag force" acting on the falling object of mass m is Dv2. Find the expression for the magnitude of the terminal velocity of this object. (Use any variable or symbol stated above along with the following as necessary: g. Do

    asked by Name on February 21, 2014
  56. hello reiny damon steve can you help me physics

    Find the Gravitational potential at a point on the earth's surface. Take mass of earth as 5.98*10^24kg, it's radius as 6.38*10^6m and G=6.67*10^-11Nm^2kg^-2. Plz i need sir damon and steve including reiny to show me step and solution plz

    asked by danu on May 8, 2017
  57. physics helpppp!!

    The 2nd harmonic of a string of length 40cm and linear mass density 1.11g.m has the same frequency as the 5th resonance mode of a closed pipe of length 1.4m. Find the tension in the string. use 340 for speed of sound

    asked by joey on February 16, 2012
  58. Algebra

    Mr. tan makes monthly visits to his parents in Malacca a distance of 240 km from Singapore. he finds that if he increases the average speed by 10km/h, he could save a total of 20min for the journey. find the original speed of Mr. tan.

    asked by Azeem on March 21, 2017
  59. College Physics

    A welder using a tank of volume 1¡Ñ10−2m3 fills it with oxygen (with a molar mass of 32.0g/mol ) at a gauge pressure of 1.4¡Ñ105Pa and temperature of 37.0∘C. Find the initial mass of oxygen. R=8.314m3PaK-1mol-1. The answer¡¦s unit is g.

    asked by Desperate Student on March 26, 2016
  60. Business Math Please Help me

    A monopoly has a total cost function C = 1000 + 108x + 12x^2 for its product, which has demand function p = 324 − 3x − 2x^2. Find the consumer's surplus at the point where the monopoly has maximum profit. (Round your answer to the nearest cent.) Thank

    asked by Scarlett on April 26, 2015
  61. medical

    this is not homeowrk for school it is homeowrk for me. I am having my gallbladder out friday and i also have IBS where can i find information on a diet to follow after surgery so i do not have to deal with bad IBS for the rest of my life.i know i can not

    asked by alley on October 10, 2007
  62. Algebra

    Find the area of the irregular figure (use 3.14 for pi). SHow your work. Round to the nearest tenth. Triangle with a semi-circle on it. The triangles height is 4.8ft and the circle's diameter is 3.6ft. Every time I do my work I keep getting 12.3 and I have

    asked by Baby_Banana on April 4, 2018
  63. Statistics

    The following are Exam scores for a group of Mathematics students. a) Group this data by using the Sturges’ formula to determine the number of classes. Keep the width of each class equal. b) Find the mean, standard deviation and variance of the grouped

    asked by Fala on October 30, 2015
  64. Calc 3

    Evaluate the surface integral S F · dS for the given vector field F and the oriented surface S. In other words, find the flux of F across S. For closed surfaces, use the positive (outward) orientation. F(x, y, z) = x i + y j + z4 k S is the part of the

    asked by Anon on November 23, 2016
  65. statistics

    A simple random sample of students is selected, and the students are asked how much time they spent preparing for a test. The times (in hours) are as follows: 1.3 7.2 4.2 12.5 6.6 2.5 5.5 Based on these results, a confidence interval for the population

    asked by Brian on November 30, 2014
  66. PLEASE CHECK OPERATIONS WITH FRACTIONS

    1. 619.5 km=__m A, 0.6195 B, 61.95 C, 61,950 D, 619,500*** Write the metric unit that makes the statement true. 2. 5,941 mm= 5.941__ (1point) A, m*** B, km C, cm D, dm Use benchmarks to estimate the sum, difference, or product. 3. 1 7/8+1/9 A, 0 B, 1 C, 2

    asked by Connexus plz help on November 2, 2016
  67. Math

    Evaluate the surface integral S F · dS for the given vector field F and the oriented surface S. In other words, find the flux of F across S. For closed surfaces, use the positive (outward) orientation. F(x, y, z) = x i + y j + z4 k S is the part of the

    asked by Anon on November 23, 2016
  68. physics

    A (10.25) kg bowling ball is hung on a (11.50) m long rope. It is then pulled back until the rope makes an angle of (39.0) degrees with the vertical and released. Find the speed of the ball is at the lowest point. Give your answer in m/s and with 3

    asked by l on February 25, 2017
  69. math-IS MY ANSWER RIGHT?

    Evaluate the surface integral S F · dS for the given vector field F and the oriented surface S. In other words, find the flux of F across S. For closed surfaces, use the positive (outward) orientation. F(x, y, z) = x i + y j + z4 k S is the part of the

    asked by Anon on November 23, 2016
  70. Algebra

    Monthly Budget: You earn $250 per month from your part-time job. You are in a kayaking club that costs $20 per month, and you save at least $100 each month. Write and solve an inequality to find the possible amounts you have left to spend each month.

    asked by Stefanie on October 9, 2011
  71. College Algebra

    An object is projected vertically upward from the top of a building with an initial velocity of 112 ft/sec. Its distance s(t) in feet above the ground after t seconds is given by the equation s(t) = −16t^2 + 112t + 100. (a) Find its maximum distance

    asked by Kyle on November 12, 2014
  72. project management

    You find a problem in a project. The project has a defined baseline and task progress has been entered for all tasks for the first report period. The ACWP field show the right cost for the work reported, but the BCWP and BCWS fields are zero. what could be

    asked by Matthew on November 16, 2008
  73. Math

    Samantha is going to buy a new Dodge Saturn for $20800. After a 5% down-payment the dealership will offer a loan for the remaining value of the car at 3.25% APR for 4 years. Round all answers to the nearest penny. Use Web Loan Calculator to find some of

    asked by Tyreice on March 30, 2017
  74. Calc

    Evaluate the surface integral S F · dS for the given vector field F and the oriented surface S. In other words, find the flux of F across S. For closed surfaces, use the positive (outward) orientation. F(x, y, z) = x i + y j + z4 k S is the part of the

    asked by Anon on November 23, 2016
  75. Math

    Determine whether each event is impossible, unlikely, as likely as not, likely or certain. Then tell whether the probability is 0, close to 0, 1/2, close to 1, or 1. Spinning a spinner that has 5 equal sections marked 1 through 5 and landing on an even

    asked by Patrick on March 27, 2018
  76. physics

    An artist designs a mobile of light horizontal rods connected by vertical strings and supporting various shaped weights (see figure below). Find the magnitudes w2, w3, and w4 if w1 = 5.91 units of weight. The numerical values given in the figure all have

    asked by john hide on April 11, 2018
  77. Physics :(( help please TT

    Consider a five-pointed star made of resistors as shown below. Each resistor has resistance R=6 Ω. Find the equivalent resistance in Ohms between the points A and B. Details and assumptions Note: Points ABCDE are labeled for easy reference if you need to

    asked by OIan on April 23, 2013
  78. PreCalc

    A card game uses a pack of 24 cards, consisting of ace, king, queen, jack, 10, and 9 in each of the four suits spade, hearts, diamonds and clubs. A hand consist of 6 cards. Find the probability a hand includes all four aces.

    asked by Peggy on April 23, 2012
  79. geometry

    Sam went to the park and saw a work crew putting in a square garden. She found a tape measure that was stretched between opposite corners with a measurement of 171.1 feet and decided to find the area. What is the area of the square in yards?

    asked by beck on May 19, 2013
  80. Geometry

    find the surface area of a right cylinder with a diameter of 4cm and a height of 6cm. Round to the nearest hundredth. Book answer is 100.53cm^2 I came up with 150.79cm^2 my work: 2rr(4)6)=150.79cm^2 What did I do wrong??

    asked by mary on April 18, 2011
  81. 6th /7th grade science

    i have 2 daughters which are in 6th/7th grade, both of them have 1wk left to turn in their science projects.I have been looking with them to find a good one but haven't been succesful,maybe due to this is my first time doing one with them.My income at the

    asked by mary on January 22, 2010
  82. Hydraulics and hydrology

    Please i need help. QUESTION=Water flows through a pipe of diameter 300mm with a velocity of 5m/s.If the coefficient of friction is given by f=(0.015/1) + (0.08/RE^0.3). Where Re is the Reynoid number. Take kinematic viscosity of water as 0.01stoke. *Find

    asked by Ekingdeft Omamode on February 5, 2016
  83. health

    i was wondering whether anyone came accrossa fascinating storiy in a newspaper or magazine recently about somethin unbelievable related to health. I have to facilitate a discussion in my life ed class about a health topic and i thought i would find an

    asked by sammi on October 14, 2009
  84. Statistics

    According to one pollster, 48% of people are afraid of flying. Suppose that a sample of size 20 is drawn. Find the value of standard error , the standard deviation of the distribution of sample proportions. Write only a number as your answer. Round to two

    asked by Obi on October 18, 2015
  85. emergency physics

    The 2nd harmonic of a string of length 40cm and linear mass density 1.11g.m has the same frequency as the 5th resonance mode of a closed pipe of length 1.4m. Find the tension in the string. use 340 for speed of sound

    asked by joe on February 15, 2012
  86. English

    Thank you very much. I still find it difficult to rephrase this sentence: Macbeth says that if he must know his deed, than (?) it would be best to lose all knoweledge of himself. Does it mean that "he would rather lose knowledge of himself than acknoledge

    asked by Henry2 on October 1, 2011
  87. physics

    An artist designs a mobile of light horizontal rods connected by vertical strings and supporting various shaped weights (see figure below). Find the magnitudes w2, w3, and w4 if w1 = 4.92 units of weight. The numerical values given in the figure all have

    asked by JOHN on March 26, 2012
  88. Biology

    Ok i have three questions that i can't find anywhere... 1. Carbon dioxide and water are excreted here during exhalation. 2. Structures in the skin which excrete water. salts, and some urea. 3. Removes toxic substances from the blood and converts excess

    asked by Amber on February 17, 2008
  89. Polynomial Fucntion Problem

    Could you help me with the following problem, I don't understand how to do it. Am I suppose to use the linear factorization theorem? Find an nth degree polynomial function with real coefficients satisfying the given conditions. 1. n=3; 3 and i are zeros;

    asked by Jen on October 9, 2007
  90. Physics

    Neutron stars consist only of neutrons and have unbelievably high densities. A typical mass and radius for a neutron star might be 5.8 x 1028 kg and 1.5 x 103 m. (a) Find the density of such a star. (b) If a dime (V = 2.0 x 10-7 m3) were made from this

    asked by StressedStudent on November 23, 2012
  91. Math

    A monopoly has a total cost function C = 1000 + 108x + 12x^2 for its product, which has demand function p = 324 − 3x − 2x^2. Find the consumer's surplus at the point where the monopoly has maximum profit. (Round your answer to the nearest cent.)

    asked by Tom on April 22, 2015
  92. Chemistry

    We just had a lab where our objective was to find the molar mass of Copper using electrolysis. A question on my post lab asks: Would it make a difference if Cu(NO3)2, instead of CuSO4, we’re used in the copper half cells in this experiment? Why or why

    asked by ryancon on October 30, 2018
  93. trig

    a plane is flying with airspeed of 140 mph and heading 280 degrees. The wind currents are running at 20mph at 260 degrees clockwise from due north. Find the true course and ground speed of the plane.

    asked by Frankie on August 19, 2011
  94. physics

    A ray of light is incident at an angle of 20degrees to the normal on one face of an equilateral prismm made in glass of refractive index 1.523. Trace the ray of light through the prism and find the total deviation produced.

    asked by Please help- Elena on October 28, 2012
  95. Chemistry

    "Would you expect each of the following atoms to gain or lose electrons when forming ions? What ion [cation/anion] is most likely in each case?" Followed by a short list of elements such as Na and Sr. What I'm wondering is how I'm to know? I can't find

    asked by Jack on October 18, 2007
  96. Chemistry

    Find the number of mg Na2co3 FW = 106g/mol required to prepare 500ml of 9.2ppm NA solution. ppm = mg/L 9.2mg/1000ml x= 0.0092 x 500ml = 4.6mg x 23 = 106mg The right answer 10.6mg NA weight = 23 Who helps me to solve it for me.

    asked by Fai on November 4, 2012
  97. design technology

    for my design technology assignment i need to find a product where the designer has thought outside of the box. im not really sure what to do what i thought of was a coca cola can. the designer made it a bright colour to make it more appealing to consumers

    asked by aleisha on October 12, 2009
  98. Physics

    An artillery shell is fired at an angle of 56.7 degrees above the horizontal ground with an initial speed of 1960 m/s. The acceleration of gravity is 9.8 m/s^2. Find the total time of flight of the shell and the horizontal range, neglecting air resistance.

    asked by Anonymous on October 11, 2018
  99. earth science

    i need to know where i can find the brief mythology of the constallation capracornus([[[capricorn]]]) and the constellations inside the capricornus and the type of star they are and the distance from earth and the magnitude(absolute) and the color and

    asked by theresa on October 3, 2007
  100. Physics

    You will use the formula p*V = kB*N*T to find the depth of the box (front to back measurement). The volume of the box is given by the formula V = W * H * D. (You will need to convert the pressure from atm to Pa, or pascals, by multiplying atms by 1 * 105.)

    asked by Jennifer on April 19, 2015

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