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  1. physics

    Each tire of an automobile has an area of 0.026 m^2 in contact with the ground. The weight of the automobile is 26,000 N. What is the pressure in the tires?

  2. Physics

    The four tires of an automobile are inflated to an absolute pressure of 2.0*10^5 Pa. Each tire has an area of 0.024m^2 in contact with the ground. Determine the weight of the automobile. Pressure*area= force. There are four tires.

  3. physics

    The heels on a pair of women's shoes have a radius of 5 cm at the bottom. if 30% of the weight of a woman 480N is supported by each heel, find the stress on each hee.

  5. physics

    a car starts from rest at constant acceleration of 2m/s2 at the same instant, a truck travelling at a constant speed of 10m/s overtakes and passes the car i) how far beyond the starting point will the car overtake the truck ii) after what time will this

  6. English-change the sentences into passive voice

    1.Rita is writing a story. 2.I was buying vegetables. 3.seema was eating apples. 4. The family was watching a cricket match.

  7. physics

    An ant walks on a piece of graph paper straight along the x axis a distance of 10.0 cm in 2.20 s. It then turns left 30.0 degrees and walks in a straight line another 10.0 cm in 1.90 s. Finally, it turns another 70.0 degrees to the left and walks another

  8. Trigonometry

    Three ships are situated as follows: A is 225 miles west of C while B, due south of C, bears S25*10'E from A. a. How far is B from A? b. How far is B from C? c. what is the bearing of A from B? PLEASE EXPLAIN

  10. chemistry

    A 15.27 g sample of Mo2O3(s) is converted completely to another molybdenum oxide by adding oxygen. The new oxide has a mass of 18.33 g. Add subscripts below to correctly identify the empirical formula of the new oxide.

  11. Chemistry

    According to the Star Trek "Fifth Interstellar Geophysical Conference Standard" version of the periodic table, there are 140 known elements. In what group of the periodic table would you place element 117, "topaline" which is reported to have been

  12. Math

    By default, your numerical entry is scored as correct if it is within 1% of the correct answer. A rule of thumb is always to enter at least 3 digits for numerical questions. If the correct answer is 7.48809, which of the following entries would be counted

  13. English

    1. The committee were divided in their opinions. 2. The committee was divided in its opinions. 3. The committee was divided in their opinions. [Which senteces are grammatical?]

  15. Physics

    What is the escape speed of an electron launched from the surface of a 1.5 cm diameter glass sphere that has been charged to 10 nC? Which equation(s) would I use?

  16. salag national high school

    If a ship has only 5 flags and 2 of them are alike w/ which to send signals,how many different signals can be sent if all flags are used?

  17. MATHS

    Two different schools (A and B) have the same number of pupils. The ratio of the boys in school A and the boys in school B is 2:1 and the ratio of the girls in school A and the girls in school B is 4:5. Find the ratio of the boys in school A to the girls

  18. calculus

    Find an interval of length 0.1 in [1, 2] containing a root of the equation. (Enter your answer using interval notation.) x7 + 7x − 10 = 0

  20. Physics

    Calculate The Value Of g At 1000m Above The Surface Of The Earth.The radius Of The Earth Is 6378.1km.

  21. Chemistry

    What volume of oxygen at NTP is required to oxydize 100gram of glucose ?

  22. English

    Choose the mood of the underlined verb. 1. (Look) out of the window and tell me what you see. (1 point) indicative imperative*** subjunctive 2. Yosemite National Park (is) a national treasure. (1 point) indicative*** imperative subjunctive 3. If I (were)

  23. PHYSICS

    if force acts on body WHOSE ACTION LINE does not Passes through its center of gravity then body will experience A ANGULAR ACCELERATION b linear acceleration C ZERO ACCELERATION D ZERO ACCELERATION

  25. CALCULUS

    Sketch the region enclosed by the given curves. y = 4/X y = 16x, y = 1X/16 x > 0 and the area between the curves

  26. math

    1. Which angles are adjacent angles? (1 point) ∠GBM and ∠FBC ∠CBX and ∠FBC ∠XBG and ∠FBC ∠MBY and ∠FBC 2. The measure of ∠3 is 101°. Find the measure of ∠1. (1 point) 101° 106° 74° 79° 3. Is line l parallel to line m? Explain.

  27. Chemistry

    The standard internal energy change for a reaction can be symbolized as ΔU°rxn or ΔE°rxn. For the following reaction equations, calculate the energy change of the reaction at 25 °C and 1.00 bar. Sn(s) + 2Cl2(g) --> SnCl4(l) ΔH°rxn = -511.3 kJ/mol

  28. Chemistry

    The vapor pressure of pure acetone (propanone) is 266 torr. When a non-volatile solute is added, the vapor pressure of acetone above the solution falls to 232 torr. What is the mole fraction of acetone in the solution? Show work. A) 0.69 B) 0.32 C) 0.13 D)

  30. Math

    An eastbound train and a westbound train meet each other on parallel tracks heading in opposite directions. The eastbound train travels 12 miles per hour faster than the westbound train. After 1.5 hours, they are 174 miles apart. At what speeds are the two

  31. Math

    Three ducks and two ducklings weigh 32 kg. Four ducks and three ducklings weigh 44kg. All ducks weigh the same and all ducklings weigh the same. What is the weight of two ducks and one duckling? 20kgs?

  32. Maths: Partial Differentiation

    1) If x = rcos theta and y = r sin theta, show that partial r / partial x = cos theta and find partial theta / partial x. 2) If z = sin theta.sin phi.sin gamma, and z is calculated for the values theta = 30degrees, phi = 45 degrees and gamma = 60degrees,

  33. Science

    The “Great Lakes” border two regions and two countries what are they?

  35. Language Arts

    Central Idea and Theme Quick Check What is a main idea? (1 point) an action that leads to the main event in a text a lesson that is not stated in a text a concept introduced in the middle of a text a short statement of the main events of a text XXX What is

  36. Language Arts

    What does explicit mean?(1 point) information stated directly xxx information understood from context information that is inferred information that is somewhat vague What is an inference? (1 point) a detail the author provides in a text a conclusion based

  37. Language Arts

    1. Which of the following best describes text evidence?(1 point) A. ideas or conclusions about details that are hinted at but not stated B. information or details from a text that support an idea or analysis*** C. data on the amount of time it takes to

  38. Math

    Jennifer made an initial investment of $14,000 in a mutual fund. She invests an additional $300 each month to the mutual fund. What are the possible totals of her investment in the mutual fund? Select all that apply. $23,700 $18,600 $27,600 $21,800 $20,600

  40. social studies

    What is the significance of Siddhartha Gautama to Buddhism? A. An important Hindu, he taught that self-denial is the best spiritual path. B. An important Indian king, he supported the spread of Buddhism. C. Known as a missionary, he spread Buddhism to

  41. math

    Find the exact area of the region that lies beneath the curve y = 3(x^[1/3]) 0 ≤ x ≤ 27

  42. Math

    Express the function in the form f ∘ g ∘ h. (Use non-identity functions for f, g, and h.) H(x) = 9 - 5^x^2 {f(x), g(x), h(x)} =

  43. Math

    On a baseball diamond, the distance from first base to third base is approximately 127 feet. How many inches is the distance form first base to thrid base? A 381 inches B 1, 524 In. C 42 1/3 inches d 13, 716 inches Can you help me?

  45. world history

    What impact did the Silk Road have on Marco Polo’s expeditions to the Mongolian Empire? Marco Polo traveled the Silk Road to reach Mongolia but the path was too treacherous and led to Polo’s death. Macro Polo used the Silk Road to reach the Mongolian

  46. Social Studies

    1. why did sugar plantations produce such high profits a. sugar can was easy and cheap to grow b. the colonial governors placed a high tax on sugar c. europe had a high demand for sugar, molasses, and rum*** d. spanish plantation owners sold tons of sugar

  47. math

    3.the total amount Jurene paid for 5 kilos of rice and 2 kilos of fish is less than php 600 a.what mathematical statement represents the total amount Jurene paid?Define the variables used. b.suppose a kilo of rice costs php 35.what could be the greatest

  48. history

    How was the Roman Empire’s system of government similar to many of today’s Western European governments? Roman rulers were appointed based on their heredity and noble blood lines. Only the free, adult Roman male citizens were allowed to vote. Rome

  50. Social Studies

    What was the purpose of washington’s neutrality proclamation?

  51. Social studies

    What were some issues on which Hamilton and Jefferson disagreed? Select all that apply □ the role of the federal government □ how to structure judiciary □ imposition of taxes □ how to structure a banking system

  52. Math

    Tickets for a play cost Php 250 for adults and Php 200 for children.The sponsor of the show collected a total amount of not more than lhp 44,000 from more than 150 adults and children who watched the play. A. What mathematical statements represents the

  53. math

    Three numbers form a geometric progression. If the second term is increased by 2, then the progression will become arithmetic and if, after this, the last term is increased by 9, then the progression will again become geometric. Find these three numbers.

  55. math

    A lighthouse flashes its light every 12 minutes.Another lighthouse flashes every 18 mins. If the two lighhouses flash together at 12:00 noon,at what time will they next flash together?

  56. Ed Tech

    1. The _____________ of a story describes the events that take place as well as the conflict or problem that must be resolved. (1 point) characters setting plot timeline 2. The _____________ of a story describes the time and location of a story. (1 point)

  57. Calculus

    If f(x) and g(x) are continuous on [a, b], which one of the following statements is true? ~the integral from a to b of the difference of f of x and g of x, dx equals the integral from a to b of f of x, dx minus the integral from a to b of g of x dx ~the

  58. math

    Mr. Smith buys pencils at Rs 250 per hundred and sells each at Rs 1.75.Findd his loss or profit. David bought 2 dozen eggs for Rs 56. Since 6 of them broke, he incurred a loss of Rs 20 on selling them. What was the selling g price of one egg? Pls help me !

  60. Algebra plz help

    1.Identify the domain and range of the following relation. {(3,7),(3,8),(3,-2),(3,4),(3,1)} A.Domain:{3} Range:{-2,1,4,7,8}**** B.Domain:{-2,1,4,7,8} Range:{3} C.Domain:{all real numbers} Range:{all real numbers} D.Domain:O/ Range:O/ 2.Determain whether

  61. science

    when an electric current is passed through water during the process of electrolysis, two gases are formed. One gas has a boiling point of -183C degree and the other has a boiling point of -253C degree. Has a physical or chemical change occurred?

  62. Chemistry Please Help Thanks!

    Calculate the volume of solution that has a vapour pressure of 25.8 mbar and contains 200.3 g of galactose, C6H12O6, at a temperature of 22.0 °C. The vapour pressure of pure water at 22 °C is 26.40 mbar, the density of water is 1.00 g mL-1, and assume no

  63. Algebra

    A pizza chef made and sold a total of 100 pizzas that were either cheese or pepperoni. The cheese pizza's were $9 each and the pepperoni pizzas sold for $11 each. If the total receipts were $1026, how many pepperoni pizzas did he sell?

  65. calculus 1

    A rock is dropped off the edge of a cliff its distance S (in feet) from the top of the cliff after T seconds is S(T) = 16t^2. Assumme the distance from the top of the water below is 96ft. When will the rock strike the water? T=16t^2 -96 96=16t^2 80=t^2 4

  66. math

    A set is known to have 255 proper subsets. How many distinct elements does this set have?

  67. Precalc 2

    At a state fair truck pull, two pickup trucks are attached to the back end of a monster truck as illustrated in the figure. One of the pickups pulls with a force of 1600 pounds and the other pulls with a force of 3200 pounds with an angle of 45° between

  68. math

    d2y/dx2+9y=cos2x+sin2x

  70. CALCULUS PLEASE HELP!!!

    SHOW WORK PLEASE!!! The displacement (in centimeters) of a particle moving back and forth along a straight line is given by the equation of motion s = 2 sin πt + 3 cos πt, where t is measured in seconds. (Round your answers to two decimal places.) (a)

  71. Science

    1. Which of the following traits is acquired A. the number of petals that grow in a plant's flowers B. the wing shape of a wild bird C. the ability of some gorillas to use sign language D. a cheetah's ability to run faster than any other animal 2. The

  72. Trigonometric Functions! (Ferris Wheel)

    The Ferris wheel at a carnival has a diameter of 18m and descends to 2m above the ground at its lowest point. Assume that a rider enters a car at this point and rides the wheel for two revolutions My main problem is how to get the phase shift. (The answer

  73. maths

    Insert three geometric means between 1 and 81.

  75. maths

    prove that : 3^-3 * 6^2 * root 98 / 5^2 * cube root 1/25 * 15^-4/3 *3^1/3 is equal to 28 root 2

  76. AP Chem

    The electron-domain geometry and molecular geometry of iodine trichloride are __________ and __________, respectively. The answer is trigonal bipyramidal, T-shaped, respectively- I do not understand the approach PLEASE EXPLAIN HOW YOU GOT THE ANSWER!!!

  77. Please help with 5 math questions

    1. 7r – 7 = 2r + 18 r = –5 r = 5 r = 2.2 r = 1.2 2. 2x + 12 = 18 – x x = 3 x = 10 x = 6 x = 2 3. 8x – 3 = 15x + 18 x = –3 x = 3 x = 2.1 x = .9 4. 6y – 6 = 4y + 16 y = 2.2 y = –2.2 y = 11 y = 5 5. 3(x – 4) = 5(x + 2) x = 11 x = –11 x = 1 x

  78. physics

    Dry saturated steam at 100 degree C is passed into 250 gm of a mixture of ice and water contained in a calorimeter of thermal capacity 45J/K.When all the ice has just melted,the mass of the content has increased by 10 gm due to condensed steam.Assuming no

  80. algebra

    write each problem in form ax^p +bx^q p and q are rational numbers [x^2-4x^(1/2)]/2x^(1/3) the answer is 1/2x^(5/3)-2x^(1/6)

  81. Statistics

    If mean of 1, 2, 3, --------- n is 6n/11, then n is

  82. calculus

    Let f be a differentiable function such that f(3) = 2 and f'(3) = 5. If the tangent line to the graph of f at x = 3 is used to find an approximation to a zero of f, that approximation is? So confused

  83. math

    A recipe that makes 18 cookies calls for 3/4 cup of sugar. How much sugar is needed to make 24 cookies using this recipe?

  85. CHEMISTRY- vant hoff

    a 0.100m k2so4 solution has a freezing point of -0.43 degrees. what is the van hoff factors for this solution? kf=1.86degree/m? 0.77 3.0 1.0 2.3 i have used the equation dT=iKfm and get -2.3?

  86. physics honors

    You are given a vector in the xy plane that has a magnitude of 100.0 units and a y component of -50.0 units (b) Assuming the x component is known to be positive, specify the vector which, if you add it to the original one would give a resultant vector that

  87. Microeconomics

    Larry, Moe, and Jo run the only saloon in town. Larry wants to sell as many drinks as possible without losing money. Jo wants the saloon to bring in as much revenue as possible. Moe wamts to make the largest possible profits. Using a single diagram of the

  88. Language Arts

    Read the trailer for Wonder. The first day of a new school can be scary for anyone, but imagine you had never attended school before . . . anywhere . . . at all. Electives? Homeroom? Clubs? It was all gibberish to August when he entered Beecher Prep for

  90. Math

    A regular hexagon (ABCDEF) shape of city center in Egypt with sides all of lenght 4 km and with center at 0 (letter). The interior angles of the hexagon are all equal. The interior angles of a polygon with n equal sides and n equal angles (regular polygon)

  91. statics /physics

    Suppose that F1 = 850 N and F2 = 425 N . Determine the magnitude of the resultant force. session.masteringengineering.com/problemAsset/2086561/6/Hibbeler14.ch2.p43.jpg I think i need to draw a line from F1 to F2 on the figure and work out the problem. Not

  92. Chemistry

    I just took my quiz and I'm confused because I got it wrong. It asked which one is not a pure substance? A. Ammonia B. Steam C. Gasoline D. Iodine Crystals I was running out of time and I chose Ammonia and I see it was a pure substance but I see the other

  93. physics

    A 0.41kg football that is initially at rest acquires a velocity of 35m/s when it is kicked. If the kicker's boot remains in contact with the ball for 0.08s, what is the average force of the kick?

  95. science

    Earthquakes can be recorded on a seismograph. This device produces a piece of paper with a long flat line, along with scribbles drawn with a needle that represent times when there has been an earthquake. How is energy transmitted to the seismograph?(1

  96. english

    SHARKS' TEETH Langston Carter 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

  97. algebra

    when ur given ordered pairs, how do you determine if the relations is a function

  98. Equations and Inequalities Test Part 2

    Note: Enter your answer and show all the steps that you use to solve this problem in the space provided. You are a member of your local movie theater’s club. Every time you see a movie at the theater, you earn 2 advantage points. When you earn 100

  100. language

    When you review a text to evaluate its argument, what is the first thing you must do? write the author’s claim trace the author’s claim agree with the author’s claim identify the author’s claim

  101. science

    The motion of a vibrating system is described by the function y(x, t) = A0e^(-at)sin(kx-ωt). If t refers to time in seconds and x refers to distance in meters, what must the units of k be? 1/s s 1/m unitless m/s m

  102. Math

    Veronica has a current checking account balance of $469. In the next month she deposits $120, pays her annual online banking fee of $25, and makes withdrawals of $200 and $160 from an ATM that charges a $2 fee per transaction. What is her account balance

  103. World History

    What was Eurocentrism? A) the belief that manufacturing centers should be located in Europe B) the belief that European civilization was superior to other cultures C) the belief that European languages were superior to other languages D) the belief that

  105. Math/Finance

    Jose started a small business and wants to determine when the business will become profitable. His operating costs can be expressed as y=$10,000+$3,000x, where x is the number of months he stays in business. His sales revenues can be expressed as

  106. MATH

    Jasmine is taking out a small business loan for her floral shop. She plans to apply for a $30,000 loan with a 5-year term and a 3.75% interest rate. She is unsure of her expected monthly profits, so she wants to know the benefit of a smaller loan. Using

  107. chem

    Consider the following reaction. CaC2(s) + 2 H2O(l) ⇌ Ca(OH)2(aq) + C2H2(g) Which of the following represents the thermodynamic equilibrium constant, K ? K=[H2O]2[CaC2]PC2H2[Ca(OH)2] K=PC2H2[Ca(OH)2][CaC2] K=[C2H2][Ca(OH)2][H2O]2[CaC2] K=PC2H2[Ca(OH)2]

  108. history

    Which accurately defines heresy? a) religious opinion opposing established views or doctrine b) type of love that is spiritual and not physical c) philosophy that idealized the human mind d) forbidding someone to participate in practices of the church I

  110. calculus

    A tank is full of water. Find the work required to pump the water out of the spout. Use the fact that water weighs 62.5 lb/ft3. (Assume r = 4 ft, R = 8 ft, and h = 15 ft.)

  111. Chemistry

    Iron (III) Nitrate reacts with sodium carbonate to form a precipitate. Be sure to indicate oxidation states and the precipitate. Skeletal Equation: Ionic Equation: NET Ionic Equation: Balanced Equation: Spectator Ions: I got the skeletal equation, but I

  112. Chemistry

    In Part C, you determined that the proper ratio of packages of buns, packages of patties, and jars of pickles is 3:2:4. If you want to feed at least 540 people, but also maintain the proper ratio, what minimum number of packages of buns, packages of

  113. History

    Which option accurately describes Anton van Leeuwenhoek’s impact on the scientific community during the Scientific Revolution? He improved the microscope, which enabled him to discover bacteria and red blood cells. He invented the seed drill, which

  115. Ap chemistry

    Write the balanced net ionic equation for the following chemical reaction: A solution of sodium dichromate, Na2Cr2O7, is added to an acidic solution containing Fe2+ ions.

  116. stats

    In a particular game, a fair die is tossed. If the number of spots showing is either 4 or 5 you win $1, if the number of spots showing is 6 you win $4, and if the number of spots showing is 1, 2, or 3 you win nothing. Let X be the amount that you win. What

  117. Math

    A radio antenna is stabilized by two guy wires. One guy wire is 100 m in length and is attached to the top of the antenna. The wire makes an angle of 60° with the ground. One end of the second guy wire is attached to the ground at the same point as the

  118. Math

    Write a measurement division story problem for 5/12 divided by 1/6

  120. chemistry

    In Europe, gasoline efficiency is measured in km/L. If your car's gas mileage is 21.0 mi/gal , how many liters of gasoline would you need to buy to complete a 142-km trip in Europe? Use the following conversions: 1km=0.6214mi and 1gal=3.78L.

  121. history

    How did the agricultural revolution affect American Indian cultures in Texas A. it helped american indians establish more permanent settlements***** B. it forced some american indians to become more nomadic C. it increased contact between american indians

  122. Math

    Pooja is twice as efficient as Aarti and takes 90 days less than Aarti to complete the job. Find the time in which they can finish the job together.

  123. World History

    Which helped the Jamestown colony continue? *The acquisition of gold held by the Powhatan tribe provided the viability of the colony *The production of tobacco as a cash crop led to the successful support of the colony *The creation of a textile mill in

  125. world history

    Which option most accurately explains the impact of the First Agricultural Revolution? Early humans ate more foods high in protein and low in starch and grains. Early humans created new social cultures, including laws and inventions. Early humans began to