1. Phiysics

    An automobile traveling 50km/hr. It decelerates at 5 meter per second square. How long will it take to stop the car? How far will the car travel after a brakes applied?

    asked by Grace on January 11, 2016
  2. physics

    a train is moving at 30m/s when the brakes are applied the retardation is 2m/s (square). Find the velocity after 10sec and the time taken for train to come to rest

    asked by abiee on October 23, 2015
  3. Physics

    I would say it is true that the center of mass of an isolated system moves at a constant velocity, as long as there is a constant force applied to it. Am I correct?

    asked by David on December 16, 2011
  4. Calculus

    Which of the following statements is/are true? I.If f '(c) = 0, then f has a local maximum or minimum at x = c. II.If f is continuous on [a, b] and differentiable on (a, b) and f '(x) = 0 on (a, b), then f is constant on [a, b]. III.The Mean Value Theorem

    asked by Tom on May 21, 2015
  5. physics

    A .5 m long, 3 cm diameter metal bar has a Young’s Modulus of 7.0x1010 N/m2. If a 50,000 N force is applied to the end of the bar, by how much will it compress?

    asked by Kate on July 5, 2011
  6. Physics

    an upward force of 45.0N is applied to catch a falling girl's bowling ball with a mass of 5.45kg(12lb). What is the acceleration of the ball

    asked by Li Jun Heum on November 23, 2016
  7. PHYSICS

    a mass of 2.00kg is pushed up a 50 degree incline. if muse of k is 0.400 and a force of 50.0 N is applied parallel to the plane, what is the acceleration of the mass?

    asked by EMMA on July 11, 2014
  8. physics

    a constant rrtarding force of50N is applied to a body of mass 20 kg moving initially with speed of 15 ms-1.How long does the body take to stop?

    asked by Anonymous on August 28, 2014
  9. Physics

    An automobile traveling 50km/hr. It decelerates at 5 meter per second square. How long will it take to stop the car? How far will the car travel after a brakes are applied?

    asked by Grace on January 11, 2016
  10. physics

    1)How can the CG of an irregularly shaped object be determined? 2) What is the lever arm of a force? 3) In what direction should a force be applied to produce maximum torque?

    asked by anonymous on July 10, 2010
  11. physics

    Water flows through a horizontal tube of diameter 2.7 cm that is joined to a second horizontal tube of diameter 1.9 cm. The pressure difference between the tubes is 7.6 kPa. Find the speed of flow in the first tube. v_1 = ? m/s I've tried using P_1 + .5 *

    asked by Trent on December 8, 2011
  12. Science

    give 3 examples of pure science vs applied science

    asked by Matt on June 7, 2009
  13. microeconomics

    This week you have gone to two parties. Assume the total utility you gained from these parties is 100utils. Then you go to a third party, and your total utility rises to 110utils. What is the marginal utility of the third party attended per week? Given the

    asked by snizhanna on March 11, 2012
  14. Business English

    I need help writing this: You’ve applied for a specific job in your field of study. The Human Resources Department arranges an interview and tells you to bring with you a polished piece of writing for them to evaluate your writing skills. The paragraph

    asked by Kelley on December 12, 2013
  15. Math

    Casandra Jones has a job offer in which she will receive $600 per month plus a commission of 2.5% of the total price of the cars she sells. At her current job, she receives $1000 per month plus a commission of 1.7% of her total sales. What is the total

    asked by Maple Tree on March 30, 2016
  16. physics

    A ball attached to the end of a string is whirled on a horizontal circle at constant speed. Consider the linear momentum, total energy, and kinetic energy of the ball throughout its motion. Which of the following statements is true? Both linear momentum

    asked by hilary on January 7, 2010
  17. Physics

    Ok, I have few questions which I solved but the answers in he book do not match with the ones that I got. Q1. The de-Brogile wavelength of a neutron at 927 degree C is {lambda}. What will be its wavelength at 27 degree C? I got 2 {lambda}, book says

    asked by new user on October 20, 2016
  18. Statistics

    The figures below represent the prices (in dollars) for both paper shredders and calculators. At the 0.10 level of significance, can it be concluded that the variance in price differs between the two types of machines? Paper shredders | Calculators

    asked by Anon on November 11, 2010
  19. Algebra 1

    Samantha Jones has a job offer in which she will receive #600 per month plus a commission of 2% of the total price of the cars she sells. At her current job, she receives $1000 per month plus a commission of 1.5% of her total sales. a. What is the total

    asked by Annon. on January 13, 2012
  20. math

    there are essay competion will be held and winner will get rupees 100and who don't win will get rupees 25.there are total prize money is rupees 3000.and total participant is 63.find the number of winner.

    asked by narinder kumar on April 25, 2016
  21. LAccounting

    If total assets decreased by $47,000 during a period of time and stockholders' equity increased by $24,000 during the same period, then the amount and direction (increase or decrease) of the period's change in total liabilities is

    asked by Anonymous on July 28, 2010
  22. accounting

    If total liabilities decreased by $25,000 during a period of time and owner's equity increased by $30,000 during the same period, the amount and direction (increase or decrease) of the period's change in total assets is

    asked by Tina on May 21, 2008
  23. Physics

    A liftascends with constant acceleration a, then with constant velocity and finally stops under a constant retardation a. If the total distance ascended is s, and the total time occupied is t,show that the time during which the lift is ascending is given

    asked by Amah on January 5, 2016
  24. Fifth Grade Math

    How do you explain how to do this math problem to a child? 7/10 of the U.S. population (175,104,000)in 1991 believed saying A to be true. What is the total population? We are trying to find what the whole population total is. They have given us 7/10 or

    asked by Tiffany T on December 14, 2009
  25. math

    Mr. smith wants to buy some fencing to completely surround his rectangular garden. He knows that the total perimeter of the garden is 26 meters and the total area is 40 square meters. What is the garden’s length and width?

    asked by Anonymous on November 11, 2012
  26. Algebra 2

    If 550 m of fencing is available to build five adjacent pens, as shown in the diagram on the left, express the total area A of the pens as a function of x. What value of x will minimize the total area? What is the maximum area?

    asked by Eenra on April 16, 2016
  27. Clinical Chemistry

    This one seems like an easy question but I don't know where to start. Please help! In serum, about 55% of total serum calcium is bound. The measurement of ionized (free) calcium with an ISE is 1.10 mM. What is an estimate of the total calcium in this

    asked by Cosette on April 10, 2013
  28. Algebra

    The pressure of a gas varies jointly as the amount of the gas (measured in moles) and the temperature and inversely as the volume of the gas. If the pressure is 975 kPa(kiloPascals) when the number of moles is 4, the temperature is 250 K, and the volume is

    asked by Nicole on December 5, 2012
  29. engineering

    Problem 1: A long embankment is located on a soil profile consisting of 4m of medium clay followed by 8m of medium to dense sand on top of bedrock. A vertical settlement of 5mm at the center of the embankment was measured during construction. Assuming all

    asked by Can someone help me please? on November 6, 2011
  30. accounting

    If total liabilities decreased by $25,000 during a period of time and owner's equity increased by $30,000 during the same period, the amount and direction (increase or decrease) of the period's change in total assets is ________

    asked by lilo on October 3, 2009
  31. Algebra

    An electronics store is deciding how to price one of its products. The equation P = -25d^2 + 500d predicts the total profit P as a function of the product's price in dollars d. What price will produce the highest total profit?

    asked by Anonymous on May 22, 2014
  32. chemistry

    I have a chart and I have to draw the structure,name the shape snd lable the bond angle of some compounds. I've done most of them but im stuck on a few so heres what I need.Please and thank you structure of NF3 structure,shape and bond angle of TeCl2 bond

    asked by mike on May 16, 2007
  33. math

    From the following information, determine the maturity date of the loan. Enter the full name of the month. (E.g., March) Loan Date Time of Loan (days) Maturity Date February 5 110

    asked by tota on March 20, 2014
  34. help

    From the following information, determine the maturity date of the loan. Enter the full name of the month. (E.g., March) Loan Date Time of Loan (days) Maturity Date February 5 110

    asked by reva on December 21, 2014
  35. Math

    Two angles are supplementary. The measure of one is 30 more than twice the measure of the other. Find the measure of the larger angle.......... Please help ! I need this answer!

    asked by Vali on April 14, 2016
  36. Geometry

    A right triangle with G and F as the two base angles and E as the top angle. Side EF is Y, side FG is x, while side EG is 2x. If Y = 15, what is the value of x? ----Please help, and explain.

    asked by monique on March 25, 2012
  37. geometry

    Given mÐ 1 + mÐ2=90, what can we conclude? Well, if the angles are in a triangle, the other angle is 90 degrees, which makes the triangle a right triangle.

    asked by tina on June 28, 2007
  38. math

    two complementary angles are drawn such that one angle is 10° more than seven times the other angle find the measur of each angle

    asked by abebe on January 8, 2015
  39. math

    The measure of one angle is 15 degrees more than half the measure of its complement. Find the measure of the two angles.

    asked by lea on March 14, 2012
  40. Business calculus

    The RideEm bicycles factory can produce 100 bicycles in a day at a total cost of $10,100, and it can produce 120 bicycles in a day at a total cost of $10,700. A)Find a linear function that models the total cost for RideEm to produce x bicycles B) what are

    asked by Monica on February 3, 2018
  41. pre algebra Is it A,B,C or D?

    Rodney flips a fair coin and chooses a letter tile A, E, I, O AND U. He performs this experiment 50 times to determine the experimental probability that heads is tossed and the letter A is chosen. Which of the following is most likely to be the

    asked by Katie Please help me :( on May 23, 2016
  42. physics

    what equation would i use if i wanted to find the magnitude for this problem A box of mass 32.0 kg is subject to an applied force (FA) with an elevation angle of 39.9°, and it accelerates to the right at 6.31 m/s2. The horizontal surface has a coefficient

    asked by Jessica on December 5, 2010
  43. Psychology

    • Write a 200- to 300-word response to the following: Identify and explain the scientific process (unsystematic observation, building theories, and evaluating propositions) as applied to personality psychology.

    asked by Stacy on June 29, 2011
  44. Social Studies

    The passage implies that Plessey vs. Ferguson. 1. called for intergration. 2. stated that separtated facilities wer unequal. 3. was based on out bounded psychology. 4. was constitutional 5. applied only to private schools.

    asked by Arlena1998 on October 3, 2010
  45. Biology

    GENETICS PRACTICE PROBLEMS Worth 10 points each problem is either right or wrong 1. In humans, assume that brown eyes (B) are dominant over blue eyes (b). A blue eyed man, both of whose parents were brown eyed, marries a brown eyed woman whose father was

    asked by Vicky on April 17, 2012
  46. Mathematics

    A rare bacterial culture is being grown in a lab. As time passes, the cells multiply in a specific pattern.After 1 day, there is only 1 cell.After 2 days, there are 8 cells.After 3 days, there are 18 cells.After 4 days, there are 31 cells.How many cells

    asked by Lay on February 2, 2018
  47. Finite Math

    You deposit $300 each month into an account earning 8% interest compounded monthly. a) How much will you have in the account in 35 years? b) How much total money will you put into the account? c) How much total interest will you earn?

    asked by Anonymous on December 14, 2016
  48. maths

    In a netball competition, there are 9 teams. If each team plays each other twice, what is the total number of games played? The first round would be 9choose2 games, which is 9!/(7!2!) = 36 But you are playing two rounds, so the total number of games is 72

    asked by JaredN4 on August 13, 2007
  49. Calculus

    The marginal cost of a certain commodity is C'(x)= 3x^2 -36x + 120 If it costs 5 dollars to produce 1 unit, then find the total cost of producing x units is... Please how do I find the total cost?

    asked by Anonymous on December 13, 2011
  50. Algebra

    Micheal loaned two of his roommates a total of $4,000. He charged his first roommate 3% interest and his second roommate 4% interest. After six months he collected a total of $332 in interest. How much did he loan each friend?

    asked by Julissa on November 22, 2008
  51. Physics

    A toy train leaves a station at time t=0.0 and moves with constant acceleration. If the total mass of the train is 5.5 kg and its acceleration is 9.9 m/s2. What is the total work done on the train after 1.1 s? Express your answer in kJ.

    asked by Juicy on October 27, 2015
  52. Math Help

    You deposit $300 each month into an account earning 8% interest compounded monthly. a) How much will you have in the account in 35 years? b) How much total money will you put into the account? c) How much total interest will you earn?

    asked by jimi on December 14, 2016
  53. Physics

    A car moves with 60km/h in first one hour and with 80km/h in next half an hour. Find 1. Total distance travelled by the car. 2. average speed of car in total 1.5 hours.

    asked by Sakshi on September 7, 2016
  54. math

    a band held a concert in it's hometown a total of 15000 people attended the tickets cost 8.50 per student and 12.50 per adult the concert took in a total of $162500 how many adult came to the concert

    asked by ty on November 8, 2012
  55. Physics

    An electron with a kinetic energy of 0.8 keV is fired normal to the lines of a field of magnitude 50 G. Find: a)the radius of the path b)its acceleration c)its period

    asked by Sabrina on July 12, 2016
  56. Statistics

    Random samples of size n = 90 were selected from a binomial population with p = 0.4. Use the normal distribution to approximate the following probabilities. (Round your answers to four decimal places.) (a) P(p̂ ≤ 0.49) = (b) P(0.37 ≤ p̂ ≤ 0.49) =

    asked by Tyler on November 4, 2014
  57. MATH

    Can anyone help me with this question.? What term is being described? Choose from these answers: (A)Central Limit Theorem (B)Normal distribution (C)Standard Error (D)Z-score (E)Transformation rules

    asked by Anonymous on April 24, 2015
  58. Statistics

    The z-scores that bound the middle 35 % under the standard normal curve are z = -a and z = a. Find the value of a. Write only a positive number as your answer. Round to two decimal places (for example: 0.81).

    asked by Obi on October 13, 2015
  59. Health/ Basic Clinical Procedures

    please check my anser thanks An infant's respiratory rate is 45 beats per minute, which is considered A normal B abnormal C a breath sound D irregular I picked B

    asked by Helana on April 22, 2008
  60. statistics

    sample size needed with a mean of 100,standard deviation of 20 for the the population of normal adults an iq range to fall between 2 iq points with 95% confidence interval

    asked by krissy on December 1, 2012
  61. Biology

    A 50 year old male who is not overweight and has normal blood cholesterol levels suffers a heart attack. Propose a possible explanation i think the answer would be genetics...

    asked by Sam on October 1, 2014
  62. economics (game theory)

    Consider the normal tick tack toe game, but this time you have to AVOID getting 3 in a row in any line. Is there any strategy you can tell me that will make sure the first mover doesnt lose. Thanks

    asked by david on November 9, 2010
  63. stats

    Suppose x has a normal distribution with sigma = 1.2. Find the minimal sample size required so that for a 95% confidence interval, the maximal margin of error E = 0.5.

    asked by Anonymous on March 6, 2016
  64. P.E. ASAP PLZ

    Which of the following are signs of drug abuse? (Select all that apply) Joining a club Denial of any problems Gaining weight *** Withdrawal from normal activities *** Thanks:)

    asked by Anonymous on May 29, 2015
  65. distribution

    In a school, the IQ scores of the students have a normal distribution with a mean value of 100, and a standard deviation of 10. What is the probability that the IQ score of a randomly selected student is at least 120? (10 p)

    asked by ABDULA YUSUF on April 16, 2016
  66. chemistry

    What am I doing wrong? Estimate the normal boiling point of liquid mercury Hg(l) Hg(g) Hf 0.0 61.4 S 75.9 174.97 DH = 61.4 kJ DS = .09907 T = DH/DS = 619.76 - 273 = 346. 76 degrees celsius

    asked by Kalen on April 6, 2008
  67. Statistics

    Assume x is normally distributed with mean µ= 15 and standard deviation α= 3-. Use the approximate areas beneath the normal curve, as discussed in this section, to answer the following questions. Find P (X ≥15)- A) 0.50 B) 0.16 C) 0.34 D) 0.84

    asked by Stuart on February 22, 2009
  68. Business statistics

    1. Suppose the estimate of a proportion of a normal population is to be within 0.05 using the 95% confidence level. How large a sample is required if: a. It is known from previous studies that p = 0.3? b. There is no prior knowledge of p?

    asked by Lizzie on March 25, 2015
  69. chem

    The normal boiling point of Ta is 5425°C. What is its vapor pressure in mm Hg at 4384°C, if its heat of vaporization is 781.0 kJ/mol? Do I use the Clausius-clapeyron equation?

    asked by anonymous on May 11, 2014
  70. Algebra, Trig

    Question: A wind turbine has a total height of 50m, with 3 equally spaced blades that are 16m in diameter. 1) Create equations modelling the height of points on the tips of blades One, Two and Three. Graph these three curves on one graph. [Answers: Blade

    asked by Helena on October 20, 2017
  71. Math

    1. The length of a rectangle is 6 inches longer than thrice its width. The area of the rectangle is 57 square inches. Write a quadratic equation for the area of the floor in terms of x. Find the length and width of the rectangle. 2. If 1,500 ft of fencing

    asked by Annabeth on August 17, 2014
  72. Physics

    A 4.0 kg block is stacked on top of a 12.0 kg block, whcih is accelerating along a horizontal table at a = 5.2 s^-2 m. Let Mu k = Mu s = Mu. (a) What mininum coefficent of friction Mu between the two blocks will prevent the 4.0 kg block from sliding off?

    asked by QUESTION on August 20, 2009
  73. Chemistry

    Iron(III) oxide can be reduced by carbon monoxide. Fe2O3(s) + 3CO(g) 2Fe(s) + 3CO2(g) Use the following thermodynamic data at 298 K to determine the equilibrium constant at this temperature. Substance: Fe2O3(s) CO(g) Fe(s) CO2(g) ΔH° f (kJ/mol): -824.2

    asked by Bea on March 31, 2011
  74. Math--Algebra 1

    I really need help on this problem. I'm unable to concentrate because I have to memorize a whole play script today too, so I'm kind of stressing a bit too much for this one problem. The problem is "Marcy has a total of 100 dimes and quarters. If the total

    asked by Marie on April 7, 2012
  75. Chemistry

    I have no idea where to even start with this. It seems like it should be simple, but I have no clue. The question is... "In serum, about 55% of total serum calcium is bound. The measurement of ionized (free) calcium with an ISE is 1.10 mM. What is an

    asked by Maranda on April 9, 2013
  76. Physics

    A large statue in a crate is being moved. The mass of the statue and the crate is 150 kg. As the statue slides down a ramp inclined at 40.0°, the curator pushes up, parallel to the ramp’s surface, so that the crate does not accelerate. If the statue

    asked by Maddy on December 6, 2015
  77. Chemistry

    High-pressure liquid chromatography (HPLC) is a method used in chemistry and biochemistry to purify chemical substances. The pressures used in this procedure range from around 500 kilopascals (500,000 Pa ) to about 60,000 kPa (60,000,000 Pa ). It is often

    asked by dakota on March 11, 2015
  78. chemistry

    High-pressure liquid chromatography (HPLC) is a method used in chemistry and biochemistry to purify chemical substances. The pressures used in this procedure range from around 500 kilopascals (500,000 Pa ) to about 60,000 kPa (60,000,000 Pa ). It is often

    asked by dakota on March 18, 2015
  79. Trigonometry

    Find these quantities: i. Find all angles in the unit circle with secx=2.1754 . Give your answers in radians to 4 decimal places. ii. Find sec(arcsin(2x))

    asked by Rebekah on November 7, 2014
  80. Math Unit 3

    1. Complete the paragraph proof Given: ∠A and ∠B are complementary, and ∠B and ∠C are complementary Prove: ∠A ≌ ∠C By definition of complementary angles, m∠A + _____ = 90° and m∠B + m∠C+ _______. Then, m∠A + m∠B = m∠B + m∠C by

    asked by Anon on November 14, 2017
  81. physics

    A bag of cement of weight 300 N hangs from three wires. Two of the wires make angles θ1 = 50.0° and θ2 = 28.0° with the horizontal. Assuming the system is in equilibrium, find the tensions in the wires.

    asked by Ashley on January 7, 2010
  82. Pre Calculus

    Approximate, to the nearest 0.01 radian, all angles theta in the interval [0,2pi) that satisfy the equation. a.) sin theta=-0.0135 b.) cot theta=-2.731 Thank you for helping! I appreciate it!

    asked by Anonymous on January 24, 2015
  83. Physic

    A fan at a rock concert is 30 m from the edge of the stage. The sound intensity level at the edge of the stage is 110 dB. The fan's eardrums have a diameter of 8.4mm. How much energy is transferred to each eardrum in one second? (Hint: It may help to asume

    asked by Jimmy on November 8, 2009
  84. Managerial Econ

    The following schedule shows demand and total cost. Price Quanity Total cost $30 10 $200 29 11 208 28 12 217 27 13 227 26 14 238 25 15 250 24 16 263 To maximize profit firm should produce _____units of output and charge a price of $______

    asked by Genie on May 18, 2010
  85. Programming

    Language - PYTHON Design a program that calculates the total amount of a meal purchased at a restaurant. The program should ask the user to enter the charge for the food, and then calculate the amount of a 15% tip and 7% sales tax. Display each of these

    asked by Jane on January 6, 2012
  86. statistics

    The data listed below shows the number of hospitals in each state, using the data, complete a frequency table using 8 classes. all the data has been ordered from smallest to largest.

    asked by Justin on February 23, 2012
  87. statistics

    The data listed below shows the number of hospitals in each state, using the data, complete a frequency table using 8 classes. all the data has been ordered from smallest to largest.

    asked by Justin on February 23, 2012
  88. math

    HELP PLEASE!!!! The question is: Carmella works 37.5 h per week for Century Home selling electronics equipment. She earns a base salary of $12/h and receives a commission of 5 cents for every dollar of sales she make. Her chart goes like:

    asked by Y on December 3, 2012
  89. Statistics

    In Professor White’s statistics course the correlation between the students’ total scores before the final examination and their final examination scores is r = 0.9. The pre-exam totals for all students in the course have mean 275 and standard

    asked by Kevin on October 22, 2012
  90. Grde 12 math

    Angle D is 110 degree.Angle A and B has (5y+10).What is the value for y and the measures of angle C and angle A?

    asked by Anthony on January 24, 2016
  91. Math

    Does 1 - (tan 25 degs)(tan 110 degs) equal 1? If so, how?

    asked by Anonymous on October 24, 2015
  92. Math Time

    1:30pm - 2:30pm Is 110 minutes, correct? If not, how many minutes is it?

    asked by Qiayamah on March 7, 2014
  93. Chemistry

    I need help solving these. I don’t know what formula to use for them. There’s the (Boyle’s law, Kevin’s law, Charles law, and Gays law). Can someone help me figure out which law I’m supposed to use?

    asked by Samantha on April 9, 2018
  94. physics

    If a scuba diver descends too quickly into the sea, the internal pressure on each eardrum remains at atmospheric pressure while the external pressure increases due to the increased water depth. At sufficient depths, the difference between the external and

    asked by kate on August 29, 2015
  95. Economics

    The chapter states that the elderly population in the United States is growing more rapidly than the total population. In particular, the number of workers is rising slowly, while the number of retirees is rising quickly. Concerned about the future of

    asked by Mariah on November 17, 2006
  96. Math

    Determine whether it is possible to draw a triangle given each set of information. Sketch all possible triangles where appropriate. Calculate then label all side lengths to the nearest tenth of a centimetre and all angles to the nearest degree. A) b= 3.0

    asked by Mimi on April 7, 2015
  97. Trigonometry

    Without using the Calculator, solve the ff: (show solution) a. Cos 18° b. Tan 18° c. Cot 18° d. Sin 9° e. Cos 9° [Hint: Using any of the formulas for Half- Angle, Double Angles, Reduction] Good Day!!! Thank you for the time. :)

    asked by Fern Angel on April 29, 2016
  98. math

    Determine whether it is possible to draw a triangle given each set of information. Sketch all possible triangles where appropriate. Calculate then label all side lengths to the nearest tenth of a centimetre and all angles to the nearest degree. A) b= 3.0

    asked by Mimi on April 7, 2015
  99. physics

    Consider the system shown in the figure with = 9.5 and = 15.0 . The angles = 59 and = 32. 1)In the absence of friction, what force would be required to pull the masses at a constant velocity up the fixed inclines? the force is now removed. What is the

    asked by Austin on September 29, 2010
  100. Health

    The skeletal system is created to ____________ internal organs. (1 point) a.protect**** b.maintain c.support d.hide 2. Your elbow and knee are examples of (1 point) a.ligaments. b.joints.**** c.cartilage. d.angles

    asked by PLZ... CHECK MY WOK~Health on February 13, 2015