Popular questions and responses by nate
  1. physics

    A gray kangaroo can bound across a flat stretch of ground with each jump carrying it 9.3 m from the takeoff point. If the kangaroo leaves the ground at a 17.6 degree angle, what is its takeoff speed?

    asked on September 8, 2012
  2. algebra

    A model rocket is launched upward with an initial velocity of 200 feet per second. The height, in feet, of the rocket t seconds after the launch is given by h = −16t2 + 200t. How many seconds after the launch will the rocket be 380 feet above the ground?

    asked on September 14, 2014
  3. algebra

    The light intensity of a light bulb varies inversely as the square of the distance from the light bulb. The function I(d) = k/d^2 models this situation, where I is the light intensity, d is the distance from a light source, and k is a constant. If the

    asked on February 5, 2018
  4. Physical Chemistry

    A mole of air (80% Nitrogen, and 20% Oxygen by volume) at 298.15K is brought into contact with liquid water which has a vapor pressure of 3168Pa at this temperature. a) what is the volume of the dry air if the pressure is 1 bar? b) what is the final volume

    asked on February 6, 2012
  5. calculus

    If a snowball melts so that its surface area decreases at a rate of 3 cm2/min, find the rate at which the diameter decreases when the diameter is 9 cm. (Give your answer correct to 4 decimal places.)

    asked on November 29, 2011
  6. Physics

    A small sphere X of mass M is placed a distance d from a point mass. The gravitational force on the sphere X is 90 N. Sphere X is removed and a second sphere Y of mass 4M is placed a distance 3d from the same point mass. What is the gravitational force on

    asked on May 3, 2018
  7. Finance

    When purchasing the rights to a royalty, depending on the seller’s desired cash flows, Royalty Pharma can provide different types of payment schedules, such as an accelerated royalty or a synthetic royalty. In an accelerated royalty investment, Royalty

    asked on March 6, 2020
  8. physics-energy

    A toy gun uses a spring to project a 5.3 g soft rubber sphere vertically. The spring constant is 8.0 N/m, the barrel of the gun is 15 cm long, and a constant frictional force of 0.032 N exists between barrel and projectile. How high does the projectile go

    asked on February 19, 2010
  9. Algebra 2

    Describe the transformation to the parent function in order to graph the following function, then write the equations of the Vertical and Horizontal Asymptote. Y = _-2___ + 4 x

    asked on February 15, 2018
  10. Math

    A model of A car has a scale of 3 cm : 2m the length of the actual hood of the car is 1m what is the length of the hood of the model

    asked on September 11, 2016
  11. Calculus

    y = tan^-1(sqrt(5x^2-1)) find dy/dx

    asked on October 21, 2013
  12. Calculus

    A rocket fired straight in the air is being tracked by a radar station 3 miles from the launching pad. If the rocket is travelling at 2 miles per second, how fast is the distance between the rocket and the tracking station changing at the moment when the

    asked on April 9, 2014
  13. physics

    You are part of a team to help design the atrium of a new building. Your boss, the manager of the project, wants to suspend a 16.0 kg sculpture high over the room by hanging it from the ceiling using thin, clear fishing line (string) so that it will be

    asked on September 27, 2012
  14. algebra

    The sum of the length l and the width w of a rectangular area is 220 meters. (a) Write w as a function of l. w = (b) Write the area A as a function of l. A = (c) Find the dimensions that produce the greatest area. l = w =

    asked on November 4, 2014
  15. phsycis

    A tight-rope walker walks across a 30.0 m long wire tied between two poles. The center of the wire is displaced vertically downward by 1.0 m when he is half-way across. If the tension in both halves of the wire at this point is 3675 N, what is the mass of

    asked on September 20, 2012
  16. Mathematics

    What is the least positive angle measure that is coterminal with theta = -59pi/6?

    asked on August 31, 2020
  17. algebra

    A truck costs $60,000. It depreciates in value $6,000 per year. Write a linear model in the form v(t)=mt+b, where v(t) represents the current value of the truck after t years of ownership

    asked on February 17, 2020
  18. English

    The day we found the sharks' teeth was foggy and cool. Moisture hung in the air so thick you could almost see it sparkling in the dim sunlight. There were days, early in the summer like this one, where it seemed there was more water in the air than in the

    asked on August 16, 2019
  19. Algebra 2

    Describe the transformation to the parent function in order to graph the following function, then write the equations of the Vertical and Horizontal Asymptote. Y = _1__ + 5 x- 3

    asked on February 15, 2018
  20. Chemistry

    How many grams of phosgenite can be obtained from 14.0 g of PbO and 14.0 g of NaCl in the presence of excess water and carbon dioxide?

    asked on November 4, 2013
  21. physical science

    a 1.0 kg sample of metal with a specific heat of 0.50KJ/kgCis heated to 100.0C and then placed in a 50.0g sample of water at 20.0C. What is the final temperature of the metal and the water? I can't figure this out. Is the answer room temperature???

    asked on November 7, 2007
  22. algebra

    The height in feet of a projectile with an initial velocity of 32 feet per second and an initial height of 240 feet is a function of time in seconds given by h(t) = −16t^2 + 32t + 240. (a) Find the maximum height of the projectile. ______ ft (b) Find the

    asked on November 4, 2014
  23. Calculus

    Answer the following questions for the function f(x)=(x^3-9x^2+27x-27)/(x^2-6x+8) defined on the interval [-14, 22]. Enter points, such as inflection points in ascending order. A. The function f(x) has vertical asymptotes at _______ and ________. B. f(x)

    asked on November 5, 2013
  24. physics

    Two particles are in a uniform electric field whose value is +4000 N/C. The mass and charge of particle 1 are m1 = 1.0x10-5 kg and q1 = -15 µC, while the corresponding values for particle 2 are m2 = 3.0 x10-5 kg and q2 = +35.0 µC. Initially the particles

    asked on October 4, 2010
  25. physics

    A 6.6 nC charge is located 2 m from a 4 nC charge. Find the magnitude of the electrostatic force that one charge exerts on the other.

    asked on September 30, 2010
  26. physics

    A tennis player standing 11.5 m from the net hits the ball at 2.60° above the horizontal. To clear the net, the ball must rise at least 0.252 m. If the ball just clears the net at the apex of its trajectory, how fast was the ball moving when it left the

    asked on September 19, 2010
  27. Physics

    A communications satellite is moving at a constant speed in a circular orbit around Earth. At any given instant in time, what is the resultant force on the satellite? A. zero B. equal to the gravitational force on the satellite C. equal to the vector sum

    asked on May 3, 2018
  28. algebra

    According to Boyle’s law, the volume V of a gas varies inversely to the pressure P exerted by the gas. The volume of a given gas under a pressure of 32 kg per cm2 is 200 cm3. What will be the volume of this gas when the pressure exerted is 40 kg per cm2?

    asked on February 5, 2018
  29. Math

    Tim is mixing blue and white paint to make pale blue paint. He uses 2 quarts of blue for every 3 quarts white. How many quarts of each color would he need to make 35 quarts of pale blue? Is the answer 14 quarts of blue and 21 quarts of white?

    asked on February 29, 2016
  30. physics

    A construction worker is carrying a load of 40 kilograms over his head and is walking at a constant velocity. If he travels a distance of 50 meters, how much work is being done?

    asked on October 8, 2014
  31. Calculus

    Use continuity to evaluate. as x approaches 2, lim arctan((2x^2-8)/(3x^2-6x))

    asked on October 22, 2013
  32. chemistry

    what is the density of an object with a mass of 125g and a volume of 176ml?

    asked on September 17, 2013
  33. physics

    The engine of a 1250 kg car provides a forward directed force of 3,560 N. If the car accelerates at a rate of 2.60 m/s2, what is the total resistive force (wind resistance, friction, etc.) acting on the car?

    asked on September 13, 2012
  34. Chemistry

    An ideal gas with an initial volume of 2.30L is cooled to 12.00 Celsius where its final volume is 1.85L. What was the temperature initially?

    asked on February 7, 2011
  35. Pre Calc

    find the magnitude and direction angle of the vector v, v=-2i+5j please help i have no idea how to do this. could you show me step by step?

    asked on June 2, 2010
  36. Physics

    I got all but this problem. A 0.145-kg baseball is pitched at 42.0 m/s. The batter hits it horizontally to the pitcher at 58 m/s. A. Find change in momentum? Is it =.145*58-(-.145*42)=1.45-kg m/s? B. If bat and ball are in contact for 4.6 x 10-4 s, what is

    asked on February 14, 2010
  37. Math

    Divide. Round to the nearest tenth. 17/6 How do you divide 17 into 6??

    asked on November 12, 2008
  38. Math

    Let A , B , and C be events associated with the same probabilistic model (i.e., subsets of a common sample space), and assume that P(C)>0 . For each one of the following statements, decide whether the statement is True (always true), or False (not always

    asked on March 3, 2020
  39. English

    Which of the following describes a theme and not a topic? Bravery and being afraid Struggle and endurance Obstacles make us stronger Winning became Sam's goal I think it is D

    asked on August 16, 2019
  40. algebra

    A pump can be adjusted to empty a 1000-liter pool at different rates. When operated at a rate of R liters per minute, the pump takes T minutes to empty the pool. Which equation below relates R and T correctly?

    asked on February 6, 2018
  41. algebra

    Assume that y varies inversely as x. If y is 2.4 when x = 5, which is an equation that relates x and y?

    asked on February 5, 2018
  42. algebra

    A pump can be adjusted to empty a 1000-liter pool at different rates. When operated at a rate of liters per minute, the pump takes minutes to empty the pool. Which equation below relates and correctly?

    asked on February 5, 2018
  43. algebra

    The force, F, needed to break a board in a martial arts class varies inversely with the length, L, of the board. If it takes 24 pounds of pressure to break a board 2.5 feet long, how many pounds of pressure would it take to break a board that is 18 inches

    asked on February 5, 2018
  44. Math

    The denominator of a fraction exceeds the numerator by 7. If 3 is added to the numerator and 1 is subtracted from the denominator, the resulting fraction is equal to 4/5 . Find the original fraction. PLZ SHOW ALL WORK AND HURRY!!!

    asked on April 27, 2017
  45. Chemistry

    What is the subshell designation for an electron with the following set quantum numbers? 1) n = 1; l = 0 2) n = 3; l = 2; mi = -1 3) n = 4; l = 3 3) n = 2; l = 0; mi = 0

    asked on April 9, 2017
  46. Analytic Geometry

    what is the radius of the circle circumscribing an isosceles right triangle having an area of 162 sq. cm? Show your solutions pls. Thank you!

    asked on June 29, 2016
  47. math

    An executive traveling at 60 km hr would arrive 10 minutes early for an appointment, whereas at a speed of 45 km hr the executive would arrive 5 minutes much time is there until the appointment?

    asked on March 23, 2016
  48. Chemistry

    1). Calculate the initial and final pH when 5.0, 10.0, and 100mL of 0.100M HCL is added to (a) 100mL of water (b) 100mL of a buffer which is 1.50M acetic acid and 1.20M sodium acetate 2). Develop a recipe for making this buffer from acetic acid, sodium

    asked on March 6, 2016
  49. physics

    A stone is thrown straight up from the ground with an initial speed of 26.6 m/s. At the same instant, a stone is dropped from a height of "h" (a variable) meters above ground level. The two stones strike the ground simultaneously. Find the height "h" (a

    asked on August 23, 2015
  50. math

    A reading list contains 3 historical books and 4 science-fiction books. What is the probability that Tena will randomly choose a historical book for her first report and a science-fiction book for her second?

    asked on July 2, 2015
  51. algera

    The fuel efficiency for a certain midsize car is given by E(v) = −0.018v^2 + 1.440v + 3.9 where E(v)is the fuel efficiency in miles per gallon for a car traveling v miles per hour. (a) What speed will yield the maximum fuel efficiency? Round to the

    asked on November 4, 2014
  52. algebra

    A company has determined that the profit, in dollars, it can expect from the manufacture and sale of tennis racquets is given by P = −0.01x^2 + 130x − 180,000. How many racquets should the company manufacture and sell to earn a profit of $174,900?

    asked on September 14, 2014
  53. Calculus

    A Norman window has the shape of a rectangle surmounted by a semicircle. (Thus, the diameter of the semicircle is equal to the width of the rectangle.) If the perimeter of the window is 25 ft, find the dimensions of the window so that the greatest possible

    asked on November 18, 2013
  54. chemistry

    what is the density of an object with a mass of 125g and a volume of 176ml?

    asked on September 17, 2013
  55. Physics

    in a childrens soccer game, one of the children kicks the ball from the ground, giving it an itial velocity of 22m/s a) what height and range does the ball reach? b) How high is the ball 2.25s into flight?

    asked on March 24, 2013
  56. Calculus

    Find the limit lim x->2 (2x^2 +1)/(x^2 + 6x -4)

    asked on November 30, 2012
  57. physics

    You are planning to build a log cabin in northern Minnesota. You will pull the logs up a long, smooth hill to the building site by means of a rope attached to a winch. You need to buy a rope for this purpose, so you need to know how strong the rope must

    asked on September 27, 2012
  58. phsyics

    To move a large crate across a rough floor, you push on it with a force F at an angle of 21¨¬ below the horizontal. The mass of the crate is 31 kg, ¥ìs is 0.57, and ¥ìk is 0.45. Find the force necessary to start the crate moving

    asked on September 19, 2012
  59. Intermediate Algebra

    Find the x- y-intercepts and graph the function f(x)=5x-10

    asked on October 18, 2011
  60. Chemistry

    Alkali metals are so reactive that they react directly with water in the absence of acid. For Example... 2 K(s) + 2 H2O(l) ¨ 2 K+(aq) + 2 OH− (aq) + H2(g). How many milliliters of hydrogen will be evolved over water when 4.52 g K reacts with an excess

    asked on October 12, 2011
  61. Math Help

    a to the 9 power b to the 3 power / a to the 7 power b to the 8 power.( a^8b^8/ a^7b^8)

    asked on April 3, 2011
  62. physics

    A 25 kg chair initially at rest on a horizontal floor requires 393 N horizontal force to set it in motion. Once the chair is in motion, a 301 N horizontal force keeps it moving at a constant velocity. a) Find the coefficient of static friction between the

    asked on November 18, 2010
  63. physics

    A merry go round has a radius of 3.5 meters. How far does a child standing at the edge travel (path length) if the wheel is rotated 13.0 radians?

    asked on April 11, 2010
  64. physics

    A rocket is fired straight up through the atmosphere from the South Pole, burning out at an altitude of 208 km when traveling at 5.8 km/s. (a) What maximum distance from Earth's surface does it travel before falling back to Earth?

    asked on March 26, 2010
  65. english

    What happened to John Howland?

    asked on March 19, 2010
  66. physics

    A 755 N man stands in the middle of a frozen pond of radius 9.0 m. He is unable to get to the other side because of a lack of friction between his shoes and the ice. To overcome this difficulty, he throws his 1.2 kg physics textbook horizontally toward the

    asked on March 1, 2010
  67. Physice

    I got all but this problem, I A 0.145-kg baseball is pitched at 42.0 m/s. The batter hits it horizontally to the pitcher at 58 m/s. A. Find change in momentum? Is it =.145*58-(-.145*42)=1.45-kg m/s? B. If bat and ball are in contact for 4.6 x 10-4 s, what

    asked on February 14, 2010
  68. Algebra

    how to I find an equation of a line given two points on that line (not using a graph) example:(1,5)(2,7)

    asked on December 2, 2009
  69. Math

    Compute E(X) for the following random variable X : X=Number of tosses until getting 4 (including the last toss) by tossing a fair 10-sided die.

    asked on March 3, 2020
  70. Biology

    If these parents were to have 12 children, what number (not what %) would we anticipate to have round/small eyes?

    asked on February 25, 2020
  71. Math

    An artist wants to use silver wire to make a square that has a side length of 16 inches, then use copper wire to make the largest circle that can possibly fit in the square. At the local jewelry store, the artist can purchase silver wire for $8.75/ft and

    asked on November 22, 2019
  72. English

    f you were adjusting your reading rate to suit your purpose, how would you read this passage from Act II, Scene 5, of A Christmas Carol: Scrooge and Marley? SCROOGE. … I am light as a feather, I am happy as an angel, I am as merry as a schoolboy. [Yells

    asked on November 14, 2019
  73. Chemistry

    the balanced equation for magnesium chlorate = magnesium chloride + oxygen

    asked on October 5, 2019
  74. history

    why are people so negative toward you on this site

    asked on September 6, 2019
  75. Chemistry

    Calculate concentration of solutions: 2.86 g Sodium Carbonate crystals Na2CO3.10H2O dissolved in 250 cm^3 of solution

    asked on September 1, 2019
  76. computer science

    Suppose we are executing the DGIM algorithm for approximate counting of bits in a stream. Let the window size be 1000. (a) What is the largest possible bucket size in the representation of this stream? (b) Suppose each of the last 1000 bits is 1. What is

    asked on June 24, 2019
  77. Algebra

    Line m passes through points (4, 9) and (2, 2). Line n passes through points (2, 2) and (6, 7). Are line m and line n parallel or perpendicular?

    asked on April 8, 2019
  78. history

    how did the aztecs become so powerful

    asked on January 24, 2019
  79. Physics

    Identify the correct neutrino (Ve, Vµ, Vτ or their anti-particles) a) π+ —> p° + e+ + v b) π+ —> p° + µ+ + v c) τ+ —> e- + v + v Please explain why too...I'm really lost. I'd appreciate any help.

    asked on May 21, 2018
  80. Physics

    Identify the correct neutrino (Ve, Vµ, Vτ or their anti-particles) a) π+ —> p° + e+ + v b) π+ —> p° + µ+ + v c) τ+ —> e- + v + v Please explain why too...I'm really lost. I'd appreciate any help.

    asked on May 17, 2018
  81. Algebra 2

    Jimmy is wanting to fence a rectangular area of his land along Elm Creek. He will only need to fence 3 sides. If Jimmy has 2000 ft of fencing and wants to enclose the largest possible area, determine the dimensions of the rectangular plot. Hint: Write an

    asked on February 15, 2018
  82. Algebra 2

    Find the A) Constant of Variation, B) the Equation of the Variation, and the C) the Solution The volume V of gas varies inversely to the pressure P. The volume of a gas is 200 cm^3 under pressure of 32 kg/cm^2. What will be its volume under pressure of 40

    asked on February 15, 2018
  83. Algebra 2

    Find the A) Constant of Variation, B) the Equation of the Variation, and the C) the Solution Y varies directly with x. If y = -4 when x = 2, find y when x = 6.

    asked on February 15, 2018
  84. Algebra 2

    Find the A) Constant of Variation, B) the Equation of the Variation, and the C) the Solution Suppose B varies directly with C and inversely with D and the cube root of A. B = 4 when A = 27, C = 2, and D = 5. Find B when C = 3, A = 64, and D = 6.

    asked on February 15, 2018
  85. algebra

    The time it takes to finish a job varies inversely as the number of workers helping with the job. If 8 workers require 12 hours to finish a job, how much time would 18 workers require to finish the same job?

    asked on February 5, 2018
  86. Math/Algebra

    Can anyone help me? An 85-year-old woman in Rotorua, New Zealand, won't have to pay her library fine. A book she borrowed from the local library in 1945 was found during a move. Based on the borrowing rules pasted inside the front cover of the book, the

    asked on October 13, 2017
  87. Math

    The length of a rectangle is 2ft less than tree times width the area is 60 square ft. Find the length of the rectangle.

    asked on August 16, 2017
  88. Algebra

    Is H=-4.9t²+vt+s the formula for a projectile motion, where h is height in meters t time in seconds and v velocity in meters per second and s start height in meters

    asked on June 13, 2017
  89. Math

    f(x)=g(x)−1, g(x)=5x+2. Find f(4)−g(2) PLZ ANSWER FAST (you dont have to show work as long as the answer is right)

    asked on May 21, 2017
  90. Chemistry

    A 17.7kg piece of zinc at 73 degrees celsius is placed in a container of water. The water has a mass of 23 kg and has a temperature of 13.4 degrees celsius before the zinc is added. what is the final temperature of water?

    asked on February 7, 2017
  91. Calculus

    A car traveling 96ft/s begins a negative acceleration at a constant rate of 12ft/s^2. After how many seconds does the car come to a stop? How far will the car have traveled before stopping? Anti-derivatives are involved somewhere in the 2nd part I believe.

    asked on December 16, 2016
  92. Math

    You arrive home to find that your 45 foot by 20 foot basement has 3 inches of water in it. A) If 1 cubic foot of water is about 7.48 gallons, how much water will you be pumping out of your basement? Express your answer rounded to the nearest tenth of a

    asked on October 4, 2016
  93. Math

    A round silo is 40 feet tall and has a 25 foot radius. How high would a load of 37000 cubic feet of grain fill the silo? Express your answer rounded to the nearest foot.

    asked on October 4, 2016
  94. Math

    Consider an account with an APR of 8.5%. Find the APY with daily compounding.

    asked on August 30, 2016
  95. Math

    A man 6 feet tall is standing 4 feet away from a 20 foot lamppost. How long is the lampposts shadow?

    asked on April 27, 2016
  96. Chemistry

    The chemistry problem is "How would you make 500.0 mL of a 3.00 M HCl solution form a stock solution that is 6.00 M?" I have no clue how to even approach this problem.

    asked on April 12, 2016
  97. Physics

    A uniform disk of radius 0.45 m is mounted on a frictionless, horizontal axis. A light cord wrapped around the disk supports a 1 kg object, as shown. When released from rest the object falls with a downward acceleration of 4.5 m/s^2. What is the moment of

    asked on February 16, 2016
  98. health

    Its important to choose foods that provide more A.carbohydrates B.potassium C.mercury D.cholesterol

    asked on April 11, 2015
  99. Physics

    A 1-kg ball initially moving with a speed of 3m/s strikes a stationary 2kg ball head-on. After the collision both balls stick together. What are the final velocities of the two balls?

    asked on April 6, 2015
  100. Physics

    A block is released from rest at the top of an incline which makes a 30 degree angle with the horizontal. The incline is 12m long and it takes the block 25 seconds to reach the bottom. What is the coefficient of kinetic friction, µk, between the block and

    asked on February 25, 2015


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