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  1. Physics

    Two sound waves are traveling through a container of unknown gas. Wave A has a wavelength of 1.2 m. Wave B has a wavelength of 3.6 m. The frequency of wave B must be __________ the frequency of wave A. a. one-ninth b. one-third c. the same as d. three

  2. math

    The value p varies directly with q^-1. If p=1/6 when q=5/8, what is the value of p when q=18? A)864/5 B)7/24 C)5/864 D)-8/135 I did the p=kq, and found p to be 24/5 but that's not a choice. Help!!

  3. Math

    Find the value of an odd natural number x if LCM(x, 40)=1400

  4. Physics

    A ball is allowed to fall freely from certain heightn. What distance it covers in 1st second?

  5. math

    in a department store, there were a certain number of red t-shirts, blue t-shirts and yellow t-shirts. 3/7 of the t-shirts were red, 1/3 of them were blue, and the rest were yellow. If there were 20 more red t-shirts than blue t-shirts, how many yellow

  6. Physics

    Water flows into a house at a velocity of 15 m/s through a pipe that has a radius of 0.40 m. The water then flows through a smaller pipe at a velocity of 45 m/s. What is the radius of the smaller pipe?

  7. General Chemistry

    At STP, a 5.00L flask filled with air has a mass of 543.251g. The air in the flask is replaced with another gas and the mass of the flask is 566.107g. The density of air is 1.29g/L. What is the gas that replaced the air?

  8. Physics

    which of the following is NOT true about the path of a cannon ball launched horizontally from the earth's surface if air resistance is neglected? a. the cannnonball has a uniform horizontal velocity b.the total velocity of the cannon ball increases as a

  9. Calculus

    A ladder 25 feet long is leaning against a vertical wall. If the bottom of the ladder is pulled horizontally away from the wall so that the top of the ladder is sliding down at 3ft/sec, how fast is the measure of the measure of the acute angle between the

  10. Math

    Derek wants to determine the height of the top of the backboard on the basketball goal at the playground. He places a standard 12-inch ruler next to the goal post and measures the shadow of the ruler and the backboard. If the ruler has a shadow of 10

  11. mathematics--Please help!

    Which of the following pairs of variables is likely to have a negative correlation? Check all that apply. Years of education and salary The number of miles run and the number of calories burned A person's height and their favorite color The speed of a car

  12. Anthropology

    Lecture, desks, class hours, and writing boards are all part of the class: a)stratification b)rank C)social situation d)status e)role The term mana is best defined as: a)a member of hierarchy of priests b)the implements used in magical ceremonies c)a

  13. physics

    A soccer ball of diameter 32 cm rolls without slipping at a linear speed of 2.4 m/s. Through how many revolutions has the soccer ball turned as it moves a linear distance of 16 m?

  14. math

    If I make 9 brownies with 2 cups of cocoa and ! cup of sugar, how many cups of sugar do I need for 81 brownies?

  15. Physics

    an empty rd bottle weighs 60 grams but weighs 120 gram when completely filled with water when the bottle is completely with an unknown liquid it weighs 90 gram what will be the volume of the rd bottle

  16. Physics

    A tension of 6000 newtons is experienced by the elevator cable of an elevator moving upward with an acceleration of 2m/s^2. what is the mass of the elevator

  17. Calculus

    An open box is formed from a piece of cardboard 12 inches square by cutting equal squares out of the corners and turning up the sides, find the dimensions of the largest box that can be made in this way.

  18. fluid mechanics

    a block has a mass of 400kg in air when submerged in seawater it weighs 2943N. what is the specific gravity of the block?

  19. Math

    GCF of 2 natural numbers is 3 and their LCM is 180 if one of the numbers is 45 then find second number

  20. Physics

    Two 6.0 μF capacitors, two 2.2 kΩ resistors, and a 14.5 V source are connected in series. Starting from the uncharged state, how long does it take for the current to drop from its initial value to 1.40 mA

  21. programming

    Design a flowchart or pseudocode for a program that accepts three numbers from a user and displays a message if the sum of any two numbers equals the third.

  22. physics

    a 50 kg box sits on a scale in an elevator. the scale reads 400N. what is the acceleration of the elevator? (magnitude and direction)

  23. advanced functions

    =the height in metres of a weather ballon above the ground after t seconds can be modelled by the function h(t)=-2t^3+3t^2+149, for 0

  24. maths

    the gcf of two numbers is 3 and lcm is 180.if one of the numbers is 45,what is the other number?

  25. Language Arts

    Please help me with the following: Myths often function as a connection to __________, or the customs and beliefs of a group of people. I think the answer is phenomena, but I don't even know if that is correct. Please help me, any help will be appreciated.

  26. chemistry

    Automotive antifreeze consists of ethylene glycol, C2H6O2, a nonvolatile electrolyte. Calculate the boiling point and freezing point of a 25.0 mass percent of ethylene glycol in solution.

  27. Find an odd natural number x such that LCM (x, 40)

    Find an odd natural number x such that LCM (x, 40) = 1400.

  28. Biology

    Compared with a smaller cell, a larger cell of the same shape has a. the same surface-to-volume ratio. b. a smaller cytoplasm-to-nucleus ratio. c. less surface area. d. a smaller average distance between its mitochondria and the nucleus. e. less surface

  29. chemistry

    A vinegar contains acetic acid, CH3COOH. Titration of 5.000g of vinegar with 0.100, NaOH requires 33.0 ml to reach equivalent point. What is the weight percentage of CH3COOH in vinegar?

  30. physics

    a tire inflated to a gauge pressure of 2 bars has a nail 3mm in diameter embedded in it. what is the force tending to push the nail out of the tire?

  31. Physics

    A package is dropped from a helicopter moving upward at 15 m/s. If it takes 16.0 s before the package strikes the ground, how high above the ground was the package when it was realeased?

  32. physics

    An elevator is moving upward with a speed of 11 m/s. Three seconds later, the elevator is still moving upward, but its speed has been reduced to 5.0 m/s. What is the average acceleration of the elevator during the 3.0 s interval? a.5.3 m/s2, upward b.2.0

  33. Physics

    How much pressure is exerted on a submarine at a depth of 8.50 km in the Pacific Ocean? (density of sea water = 1.025 x 10^3 kg/m3, P0 = 1.01 x 10^5 Pa)

  34. Math

    Paul is 20 years older than joy four years ago; the ratio of their ages was 7:3 find the present age of Paul

  35. Calculus

    Find the largest volume V of the circular cone that can be inscribed in a sphere of radius = 10 cm

  36. physics

    A load of 100 lb is hung from the middle of a rope, which is stretched between two rigid walls 30 ft apart. Due to the load, the rope sags 4 feet in the middle. Determine the tension on the rope.

  37. Chemistry

    Calculate the standard free energy change at 25°c the following reaction 3Cu+2NO3+8H->3Cu+2NO+4H2O

  38. English

    As a school prefect of your school write a speech on what your school needs

  39. math

    A Ferris wheel has a maximum height of 245 feet and a wheel diameter of 230 feet. Find an equation for the wheel if the center of the wheel is on the​ y-axis and y represents the height above the ground. equation is ?

  40. Computer Science

    Answer the following question without running the code. The procedure isMyNumber is used to hide a secret number (integer). It takes an integer x as a parameter and compares it to the secret number. It returns: -1 if the parameter x is less than the secret

  41. MATH

    1. Terre Haute to Indianapolis to Bloomington measures 3 cm on the map. What is the actual distance? 100 km 150 km 200 km 250 km 2. Fort Wayne to Richmond to New Albany measures 6 cm on the map. What is the actual distance? (1 point) 300 km 250 km 350 km

  42. Physics

    A 3.00 - µF and a 4.00 - µF capacitor are connected in series, and this combination is connected in parallel with a 2.00 - µF capacitor (see the figure ). What is the net capacitance? 3.00 - µF 4.00 - µF 2.00 - µF 26.0 V

  43. math

    find the slope of the following graphs. x -1,0,1,2 y 4,2,1,-2 a.1 over 2 b.2 c.-2* d.- 1 over 2 find the slope of the following graphs. x -2,2 y 5,1 a.3 over 2 b.1 c.-1* d.- 3 over 2 find the slope of the following graphs. x 0,3 y 0,2 a.2 over 3* b.3 over

  44. math

    1. Which graph might show the temperature during a 24-hour period? (1 point) A B C D 2. Which graph might show the amount of money in a bank account if money is never taken out? (1 point) A B C D 3. Which graph might show the amount of money in a bank

  45. Chemistry

    What volume does 3.01 x 10^21 molecules of N2 occupy at STP?

  46. algebra

    A total of $12,000 is invested in two funds paying 9% and 11% simple interest. If the yearly interest is $1,180, how much of the $12,000 is invested at each rate? We have two unknowns: the amount of money invested at 9% and the amount of money invested at

  47. English

    Poetry is the journal of a sea animal living on land, wanting to fly the air. i not understand what he mean

  48. Chemistry

    1)How many protons and electrons are in a sulfate ion SO4^2- ? I know the answer is 48 protons and 50 electrons but i do not know how to get this from the ion. 2) What is the charge on a sulfide ion? The answer is -2 but im not sure why. Is sulfide always

  49. math

    Pat deposits $600.00 in a saving accounts at a simple interest rate of 6% per year for five years. How much money will pat have earned in interest at the end of five years?

  50. statistics

    Three cards are drawn from a deck without replacement. Find these probabilities. a)all are jacks b)all are clubs c)all are red cards

  51. Math

    What are Fractions less than 1/2

  52. Mathematics

    An aeroplane leaves an airport A and flies on a bearing 035°for 1.5 hours at 600km/hr to airport B It then flies on a bearing 130° for 1.5hours at 400km per hour to an airport C calculate the distance from C to A and the bearing of C from A with the

  53. chemistry

    The approximate concentration of hydrochloric acid. HCL in the stomach (stomach acid) is 0.17M. Calculate the mass of the following antacids required to neutralize 50cm3 of the acid. (a) bicarbonate of soda. NaHCO3 (b) Aluminum hydroxide Al (OH)3

  54. physics

    A 5-kg block lies on a smooth table top. A horizontal string connected to the block is passed over a small pulley at the edge of the table, and a body of mass 8 kg is hung from the other end of the string. Find the tension in the string and the

  55. science

    The graph below shows your speed at different times while riding a bicycle. For how many minutes did your speed remain constant?

  56. MATH

    Add the following vectors using trigonometry (i.e. cosine and sine laws). 9 N on a heading of [S2°W] and 11 N on a heading of [N31°W].

  57. chemistry

    commercially available concentrated Hydrochloric acid is 37.0% w/w Hcl.its density is 1.18g/ml.using this information calculate (a)the molarity of concentrated Hcl,and (b)the mass and volume (in ml)of solution containing 0.315 mol of Hcl?

  58. home work

    A framed picture has length 50 cm and width 40 cm . The picture itself has area 1344 cm^2. How far is it from the edge of the picture to the edge of the frame if thid didtance is uniform around the picture ?

  59. Physics

    Train A starts at 4 miles South of a bridge and heads North at a constant speed of 30 miles per hour. Train B starts 6 miles North of the bridge. a. What velocity must Train B have so that the two trains cross the bridge at the same time? b. If Train B

  60. AP Physics

    your doctor's scale has arms on which weights slide to counter your weight. these weights are much lighter than you are. explain how this works. does this relate to stress/strain?

  61. Physics

    A rifle is fired in a valley with parallel vertical walls. The echo from one wall is heard 1.0s after the rifle was fired. The echo from the other wall is heard 1.0s after the first echo. How wide is the valley?

  62. Life orientation

    3 ways how social media platforms are abused

  63. physics

    A 10uf capacitor is charged from a 30v supply and then connected across an uncharged 50uf capacitor.Calculate a. The final potential difference across the combination b. The final and initial energies

  64. chem

    When ionic salt is dissolved in water the ions CO3 and K+ are formed? KCO3 K2CO3 K(CO3)2 K3CO2 I think its the second one but I don't know where the 2 comes from?

  65. Math (check answer plz)

    13. A true-false test has 12 questions. What is the probability of guessing the correct answers to all of the questions? (1 point) A: 1 over 4096*******? B: 1 over 144 C: 1 over 24 D: 1 over 14

  66. physics

    A driver drives 2.5 hours at an average speed of 48MPH. What distance does she travel in this time?

  67. ALGERBRA,PLEASE HELP!!!!!!

    Given a scale factor of 2, find the coordinates for the dilation of the line segment with endpoints (–1, 2) and (3, –3). (1 point) A) (–2, 4) and (6, 6) B) (2, 4) and (6, 6) C)(–2, 4) and (6, –6) D)(2, –1) and (–3, 3) 2. Given a scale factor

  68. Essay

    Essay: How I surprised my friend on her birthday part. A birthday party is the one day a year, which is very special and unique to everyone in their life. It is a day that should be celebrated with lots of joys and some surprises. Basically, I thought I

  69. statics

    I don't understand what this question ask for. I think it want me to take 7.2*10^-3 and rewrite it as 0.00072. Am i right? The momentum of an object is determined to be 7.2×10-3 kg⋅m/s. Express this quantity as provided or use any equivalent unit.

  70. maths

    there are between 50 and 60 number of eggs in a basket. when loza counts by 3's there are 2 eggs left over, when she counts by 5's there are 4 eggs left over. How many eggs are there in the basket?

  71. Math

    In a department store there were a certain number of red tshirts, blue tshirts, and yellow tshirts. 3/7 of the tshirts were red, 1/3 of them were blue, and the rest were yellow. If there were 20 more red tshirts than bake tshirts, how many yellow tshirts

  72. math

    Write a ratio in simplified form of the vertical length to the horizontal length for the red triangle. A. 2 : 3 B. 3 : 2 C. 1 : 1 D. none of the above

  73. Algebra

    The athletic department bought a total of 29 basketballs and footballs at a cost of $1000. If basketballs cost $30 each and footballs cost $40 each, how many footballs were bought?

  74. Algebra

    The perimeter of the rectangle below is 74 units. Find the length of side AB . Write your answer without variables. DC (top) 4z-1 CB (right side) 3z+3 AB (bottom) unknown

  75. calculus

    A rectangular field is to be fenced, one side of which is the edge of a straight river. It is given that the material for the two opposite side costs Php 3.00 per meter and the material for the side opposite the river costs Php 6.00 per meter. If an amount

  76. math

    Determine which function has the greater rate of change in questions 1−3 1. x y ------- -1 0 0 1 1 2 2 3 (1 point) The rates of change are equal. The graph has a greater rate of change.*** The table has a greater rate of change. none of the above 2. y =

  77. Algebra 2

    some investments in the stock market have earned 10% annually. At this rate, earning can be found using the formula A=p(1.10)n, where A is the total value of the investment, P is the initial value of the investment, and n is the number of years the money

  78. Ratios of Similar Figures

    1. Write the following ratio in simplest form: 32 min : 36 min a. 8 : 9 b. 8 : 36 c. 32 :9 d. 128 : 144 2. In a sports equipment locker, there are 81 balls and 45 baseball mitts. Write the ratio of balls to baseball mitts in simplest form. a. 9 : 5 b. 10 :

  79. English

    Write a debate on the topic;Boys should not help in the kitchen.Speak for or against the motion.

  80. physics

    ) A batter hits a baseball so that it leaves the bat at speed Vo = 37.0m/s at an angle ao = 53.1°, at a location where g = 9.80 m/S2. (a) Find the position of the ball, and the magnitude and direction of its velocity, at t = 2.00 s. (b) Find the time when

  81. Physics

    For an ideal fluid flowing through a horizontal pipe, Bernoulli's principle and the continuity equation state that the pressure within the pipe does which of the following? Pressure descreased pipe diameter increase?

  82. Science

    A ball rolls down an inclined track 2m long in 4s.find time taken to cover the second metre of the track

  83. Algebra

    The sum of 2 numbers is 1211 and their difference is 283. Find the numbers.

  84. math

    Team one had twice as many workers as team two. The number of workers in team one is reduced by 5 and the number of workers in team two is reduced by 2. How many workers are there in each team now if there are 7 more workers in team one?

  85. math

    Determine the rate per cent per annum if Rs 6,250 amounts to Rs 6760 in six months ,interest being compounded quarterly

  86. math

    the sum of two numbers exceeds their product by one. their differences is equal to their product less five . find the two numbers

  87. Physics

    Two cars are traveling along a straight road. Car A maintains a constant speed of 79 km/h and car B maintains a constant speed of 114 km/h. At t = 0, car B is 36 km behind car A. (a) How much farther will car A travel before car B overtakes it? ? km (b)

  88. fundamental to programing

    design an algorithm that reads three numbers and prints that smallest number.using pseudo code and flow chart

  89. ENGLISH

    SENTENCE PATTERN We painted the wall green yesterday

  90. algebra 2

    a flagpole casts a 60 foot shadow when the angle of elevation of the sun is 35 degrees. find the height of the flagpole

  91. Math help

    If a physician prescribed 4gm of aspirin to be taken daily, how many 5 grain tablets should the pt take each day?

  92. physics

    A string is wrapped around a uniform solid cylinder of radius r. The cylinder can rotate freely about its axis. The loose end of the string is attached to a block. The block and cylinder each have mass m. Note that the positive y direction is downward and

  93. math help

    Could someone tell me how to find the inverse of g(x)= x^2-5x-6

  94. geometry

    1. When the net is folded into the rectangular prism shown beside it, which letters will be on the front and left side of the rectangular prism? A. The letter on the front will be A. The letter on the left side will be D. B. The letter on the front will be

  95. Maths

    Between 2000 and 3000 Odd number Digit in the tens place is 6 Digits in the ones place and the hundreds place are the same

  96. Mathematics

    Kinyua spent 1/4 of his net January salary on school fees .He spent 1/4 of remainder on electricity and water bills .He spent 1/9 of what remained on transport .if he finally has 8400 calculate total January salary

  97. English

    1. A story in which the narrator is also a character uses (1 point) A. first-person point of view. B. second-person point of view. C. third-person limited point of view. D. third-person omniscient point of view. * 2. "This time they're really killing us,

  98. history

    PLEASE I NEED HELP!!!!!!!!!!!!!! I just need a general outline and I can write the actual essay Respond to one of the following prompts A. regionalism is a form of realism that emphasizes realistic settings using local dialect customs and other specific

  99. maths

    I am a four digit number.me and two times me together make the largest four digit number.who am i?

  100. geometry

    Two sides of a triangle have lengths 4 and 7. Which of the following can NOT be the length of the third side? A. 4 B. 7 C. 11 D. 5