You are a secret agent and find that you have been pushed out of an airplane without a parachute. Fortunately, you are wearing a large overcoat (as secret agents often do). Thinking quickly, you are able to spread out and

99,837 results

  1. chem

    2H2(g)+ O2(g) --> 2H2O(L) I know the oxidizing agent is oxygen and the reducing agent is hydrogen. what are the number of electrons transferred in the balanced chemical equation? (I put 2 and tried -2 but it didn't seem right)

  2. math

    From the top of the control tower 250 m tall, an airplane is sighted on the ground below. If the airplane is 170 m from the base of the tower, find the angle of depression of the airplane from the top of the control tower.

  3. Physics

    A 75.0kg bobsled is pushed along a horizontal surface by two athletes. After the bobsled is pushed a distance of 4.5m starting from the rest, its speed is 6.0m/s. Find the magnitude of the net force on the bobsled.

  5. trig

    An aifplane is flying on a compass heading (bearing) of 170* at 460 mph. A wind is blowing with the bearing 200* at 80mph. a) Find the component form of the velocity of the airplane. b) Find the actual ground speed and direction of the airplane.

  6. Chemistry

    7. 2Sr + O2  2SrO a) Determine what is oxidized and what is reduced b) Identify the oxidizing agent and the reducing agent 8. 2Cs + Br2  2CsBr a) Determine what is oxidized and what is reduced b) Identify the oxidizing agent and the reducing agent

  7. Physics

    A model airplane with a mass of 0.748 kg is tethered by a wire so that it flies in a circle 30.2 m in radius. The airplane engine provides a net thrust of 0.806 N perpendicular to the tethering wire. (a) Find the torque the net thrust produces about the

  8. Chem Check Please!!!

    1) Assuming the following reaction proceeds in the forward direction, 3 Sn4+(aq) + 2 Cr(s) ---> 3 Sn2+(aq) + 2 Cr3+(aq) a.Sn4+(aq) is the reducing agent and Cr(s) is the oxidizing agent. b.Cr(s) is the reducing agent and Sn2+(aq) is the oxidizing agent.

  10. chemistry

    In the following half equation, which is the oxidizing agent? NO3–(aq) + 4H+(aq) + 3e– NO(g) + 2H2O a. NO3– b. H+ c. e– d. NO e. H2O An oxidizing agent is a chemical compound that readily transfers oxygen atoms, or is a substance that gains

  11. chemistry

    Identify the species oxidized, the species reduced, the oxidizing agent and the reducing agent in the following electron transfer reaction. 2Fe3+ + Sn2Fe2+ + Sn2+ species oxidized species reduced oxidizing agent reducing agent As the reaction proceeds,

  12. math

    an airplane is flying at 550 km/h on a heading of 080. the wind is blowing at 60 km/h from a bearing of 120. Find the ground velocity of the airplane. Please Help! Thanks in advance.

  13. Physics

    A 276-kg glider is being pulled by a 1 950-kg airplane along a hori zontal runway with an acceleration of vec a =2.20 m/s^ 2 to the right as in Figure P4.33. Find (a) the thrust provided by the airplane's propellers and (b) the magnitude of the tensicn in

  15. Chemistry

    Choose and best oxidizing agent and the best reducing agent: Ni2+, Al, H+, and I- ??? I'm so confused, please help! I know the oxidizing agent is being reduced and the reducing agent is getting oxidized. But how do I use the standard reduction potential

  16. CHEMISTRY HELP !!!!

    Assuming the following reaction proceeds in the forward direction, 3 Sn4+(aq) + 2 Cr(s)  3 Sn2+(aq) + 2 Cr3+(aq) a. Sn4+(aq) is the reducing agent and Cr(s) is the oxidizing agent. b. Cr(s) is the reducing agent and Sn2+(aq) is the oxidizing agent. c.

  17. Trigonometry

    An airplane is sighted at the same time by two ground observers who are 2 miles apart and both directly west of the airplane. They report the angles of elevation as 11˚ and 20˚. How high is the airplane? Round to the nearest hundredth of a mile.

  18. Chem

    In the reaction 2HNO3(aq) + Cu(s) + 2H+(aq) �¨ 2NO2(g) + Cu2+(g) + 2H2O(l) Which of the following statements is correct? A.HNO3 is the reducing agent, and Cu is the oxidizing agent B.HNO3 is the reducing agent, and H+ is the oxidizing agent C.Cu is the

  20. History

    What happened to airplane manufacturing after World War II? 1 Airplane manufacturers began producing goods for the oil industry. 2 Airplane manufacturing rebounded and produced airplanes, parts, and equipment. 3 Airplane manufacturing decreased in Texas as

  21. Chemistry

    How do I find the answer to this?? Cu metal displaces Ag+(aq) from an aqueous solution. Which of the following is correct? Ag is easier to oxidize than Cu Ag is a better reducing agent than Cu Cu2+ is a better oxidizing agent than Ag+ Ag+ is easier to

  22. Math

    An airplane has a speed of 400 km/h with no wind. The airplane flies 2140 km with the wind. The airplane can only fly 1860 km against the wind in the same time. If w equals the speed of the wind, make an equation that can be used to find w?

  23. Math (Pre-Calc)

    An airplane is flying east at a constant altitude of 28,000 meters. When first seen to the east of an observer, the angle of elevation to the airplane is 71.5 degrees. After 73 seconds, the angle of elevation is 51.6 degrees. Find the speed of the

  25. physics

    Consider an airplane with a total wing surface of 90 m^2. At a certain speed the difference in air pressure below and above the wings is 4.2% of atmospheric pressure. Find the lift on the airplane.

  26. chemistry

    In the reaction 2HNO3(aq) + Cu(s) + 2H+(aq) ¨ 2NO2(g) + Cu2+(g) + 2H2O(l) Which of the following statements is correct? A.HNO3 is the reducing agent, and Cu is the oxidizing agent B.HNO3 is the reducing agent, and H+ is the oxidizing agent C.Cu is the

  27. physics

    The same type of engine is placed in two different airplanes. The first airplane is twice as heavy as the second airplane. Which statement is correct about the mass of the airplane and its acceleration, assuming a constant net force? Increasing the

  28. Geometry

    an airplane flying at an altitude of 10,000ft or 1.89 miles. The airport at which it is schooled to land is 50 mi away. Find the average angle at which the airplane must descent for landing round your answer to the nearest degree.

  30. Chemistry

    Consider the following reaction and select the false statement below. NaI + 3HOCl → NaIO3 + 3HCl A. HOCl is the oxidizing agent B. Cl is reduced C. NaI is the reducing agent D. If ΔG° for the reaction is < 0, then NaI is a stronger reducing agent than

  31. math

    an airplane is flying at a constant altitude of 28000 meters. when first seen to the east of the observer, the angle to the airplane is 71.5 degrees. after 73 seconds, the angle of elevation is 51.6 degrees. find the speed of the airplane.

  32. Chem

    am having trouble understanding this redox rxn.....tell me if i classify it correctly... 2K + Cl2---> 2KCl oxidized is Cl is the recducing agent reduced is K is the oxidizing agent

  33. chemistry

    identify the oxidizing agent and the reducing agent in the following reaction: C + 2Clsub2 > CClsub4

  35. Calculus

    An airplane is flying at 550 km/h on a heading of 080 degrees: The wind is blowing at 60 km/h from a bearing of 120 degrees. Find the ground velocity of the airplane.

  36. chemistry

    Rank these species by their ability to act as an oxidizing agent. Na^+ I2 Cr^3+ F2 Put best oxidizing agent first and continue to have best reducing agent last.

  37. Precalculus

    An airplane is flying due west at a velocity of 100 m/s. The wind is blowing south at 5 m/s. a. Draw a labeled diagram of the situation. b. Find the resulting ground speed and bearing of the airplane?

  38. chemistry

    Reaction 1: Cu (strongest reducing agent) I- Ag Br- (weakest reducing agent) Reaction 2: Zn(strongestreducing agent) Pb Cu Ag(weakest reducing agent) Reaction 3: Cl2 (strongest oxidizing agent) Br2 I2 (wekest oxidizing agent) Using these results, how am I

  40. Physics

    A woman in a car on a level road sees an airplane traveling in the same direction that is climbing at an angle of 30 degrees above the horizontal. By driving 110 km/h she is able to stay directly below the airplane. What is the airplane's velocity?

  41. physics

    An airplane starts from rest at the end of a runway and accelerates at a constant rate. In the first second, the airplane travels 1.11 m. What is the speed of the airplane at the end of the second second?

  42. chemistry

    what are the oxidatoin numbers in this chemical reaction Ni+H2SO4=H2+NiSO4? is it Reactants: Ni=0 H=1 SO4=-2? Products:H=1 Ni=2+ SO4=-2? what is being oxidized? reduced? what is the oxidizing agent? reducing agent? is Ni being oxidized and is reducing

  43. chemistry

    3PbO2 + 2Cr3++ 2H2O3Pb2+ + 2CrO42-+ 4H+ In the above redox reaction, use oxidation numbers to identify the element oxidized, the element reduced, the oxidizing agent and the reducing agent. 1.name of the element oxidized: 2.name of the element reduced:

  45. Math

    An airplane took off from Newark International airport. When traveling down the runway as it prepares to take off, the airplane travels about 180 meters in 3 seconds. What is the average speed of the airplane on the runway?

  46. math please hurry

    A secret code must consist of three capital letters followed by a digit. Letters cannot be repeated. How many secret codes are possible? A. 140,400 B. 156,000 C. 175,760 D. 358,800

  47. Calculus AB

    The rate at which people learn about a secret is directly proportional to the number of people who know the secret. If two people know the secret on day 0, and 20 people know it on day 2, how long will it take for the whole school (4000 people) to know?

  48. Math

    At an airport, a flight controller is in a tower 45m above the ground. She observes an airplane flying at a constant altitude at an angle of elevation of 14 degrees from her line of sight. Seven seconds later, the airplane flies directly overhead. If the

  50. chemistry

    SO42- + HAsO2+ 2H+H3AsO4 + SO2 In the above redox reaction, use oxidation numbers to identify the element oxidized, the element reduced, the oxidizing agent and the reducing agent. 1. name of the element oxidized: 2. name of the element reduced: 3. formula

  51. Chemistry - Oxidation, Reduction Reactions

    Fe^3+ + C204^-2 (oxalate) -> Fe^2+ + CO3 Which is the oxidizing agent and the reducing agent in the chemical equation above?

  52. Algebra 2. Please Help Someone!!

    an airplane's altitude is 100 feet as it descents for a landing on a runway whose touchdown is 5000 ft away. Let the x-axis represent the ground and the y-axis represent the airplane's altitude. What is the slope of the airplane's descent? What is the

  53. Physical Science

    an airplane is flying at 600km/h at an altitude of 2.0km. When the sound of the airplane's engines seems to someone on the ground to be coming from directly overhead, how far away is she from being directly below the airplane?

  55. Physics

    HELP!!! Consider an airplane with a total wing surface of 140 . At a certain speed the difference in air pressure below and above the wings is 3.0 of atmospheric pressure.Find the lift of the airplane

  56. English

    1. He kept a secret. 2. He broke a secret 3. He let out a secret. 4. He gave away a secret. 5. He betrayed a secret. ================= What is the opposite of #1? Can the others be used as the opposite? What is commonly used?

  57. ethics and moraling reasoning

    According to John Stuart Mill, utilitarianism takes into account the happiness of: (Points : 1) only the agent. only the agent and those the agent cares about. everyone, but weights the happiness of the agent more heavily. everyone, and weights

  58. 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

  60. History

    1. what happened to airplane manufacturing companies after world war 1 A. Airplane manufacturing began producing goods for the oil industry B. Airplane manufacturing rebounded and produced airplanes, parts, and equipment*** C. Airplane manufacturing

  61. physics

    a woman on the ground sees an airplane climbing at an angle of 35o above the horizontal. she gets into her car and by driving 70.0 km/h is able to stay below the airplane. what is the airplane's velocity?

  62. Physics

    A man seeking to set a world record wants to tow a 110000-kg airplane along a runway by pulling horizontally on a cable attached to the airplane. The mass of the man is 70 kg, and the coefficient of static friction between his shoes and the runway is 0.76.

  63. Chemistry

    Can someone explain the difference between oxidation and reduction? ALso reducing agent and oxidizing agent?

  65. science

    A man seeking to set a world record wants to tow a 106,000-kg airplane along a runway by pulling horizontally on a cable attached to the airplane. The mass of the man is 77 kg, and the coefficient of static friction between his shoes and the runway is

  66. Math

    An airplane is flying from the west directly towards two forest fires that are east of the airplane. From the airplane, the angle of depression to one fire is 43 (degrees) and 20 (degrees) to the other fire. The airplane is flying at an altitude of 2500ft.

  67. Finance

    Agency theory deals with the issue of Answer when to hire an agent to represent the firm in negotiations. the legal liabilities of a firm if an employee, acting as the firm's agent, injures someone. the limitations placed on an employee acting as the

  68. chemistry

    balance these redox reactants & determine oxidator agent and reducing agent A. Zn + NO3- --> Zn+2 +NH4 + Acid B. Cr(OH)3 + H2O2 --> CrO4 -2 + H20 (Basic)

  70. chemistry

    this is a repost. Balance the following ionic equation for acidic conditions. Identify the oxidizing agent and the reducing agent. Show the steps. Hg(ℓ) + NO3^ (–1) (aq) + Cl^(–1) (aq) → HgCl4^(–2) (s) + NO2(g)

  71. physics

    A 20000 kg airplane takes off by traveling 300 m down a runway while the engines exert a continuous force of 4000 N.(a) Calculate the change in kinetic energy of the airplane during takeoff.(b) Determine the speed of the airplane as it leaves the runway.

  72. business

    a wholesaler or agent who markets products for companies wanting to do business abroad is called a a. licensing agent b. marketing agent c. foreign intermediary d. wholesaling agent

  73. Physics

    An airplane of mass 1.3 104 kg is moving at 64 m/s. The pilot then revs up the engine so that the forward thrust by the air around the propeller becomes 7.2 104 N. If the force exerted by air resistance on the body of the airplane has a magnitude of 4.0

  75. physics

    What physics is involved for a passenger feeling pushed backward into the seat of an airplane when it accelerates along the runway during takeoff?

  76. science

    (a) An airplane flies at constant speed along a straight line at an angle of 30' with the horizontal. The weight of the airplane is 80000 N and its engine provides a thrust of 100000 N in the direction of flight. Determine the lift force perpendicular to

  77. English

    1. She has a secret in growing vegetables. 2. Do you know how she grows vegetables well? 3. It is to talk and sing to the vegetables. 4. Why is she a good farmer? 5. Because she grows vegetables well by talking and singing to them. 6. What secret does she

  78. physics

    An airplane of mass 1.5x10^4kg is moving at 60m/s. The pilot then revs up the engine so that the forward thrust of the propeller becomes 7.5x10^4 N, find the speed of airplane after it has traveled 500m. Assume that the airplane is in level flight through

  80. physics

    An airplane is flying NW with a ground speed of 600 Km/h. If a 125 Km/h wind from the W suddenly hits the airplane, find the airplane's new speed and direction relative to the ground.

  81. Chemistry

    Which of the following statements are false regarding using a solid drying agent? (select all that apply) a) Water can be present due to isolation and/or purification conditions b) A good drying agent must be soluble in organic solvent c) One type of

  82. Math

    An airplane is at an altitude of 10 km. You spot the airplane at an angle of 55 degrees . How far away Is the airplane directly from you? Give your answer to the nearest kilometre.

  83. more physics..

    find the kinetic energy of an airplane traveling at a speed of 648 km/h if the mass of the airplane is 5,000 kg.

  85. physics

    A woman on the ground sees an airplane climbing at an angle of 35o above the horizontal. She gets into her car and by driving at 70.0 km/h is able to stay directly below the airplane. What is the airplane’s velocity?

  86. Physics

    A man seeking to set a world record wants to tow a 122000-kg airplane along a runway by pulling horizontally on a cable attached to the airplane. The mass of the man is 95 kg, and the coefficient of static friction between his shoes and the runway is 0.74.

  87. Physics

    A man seeking to set a world record wants to tow a 122000-kg airplane along a runway by pulling horizontally on a cable attached to the airplane. The mass of the man is 95 kg, and the coefficient of static friction between his shoes and the runway is 0.74.

  88. Law

    In special circumstances is it possible for an agent to legally work for the interest of another agent or third party while representing a principle?

  90. physics

    A man seeking to set a world record wants to tow a 104,000-kg airplane along a runway by pulling horizontally on a cable attached to the airplane. The mass of the man is 93 kg, and the coefficient of static friction between his shoes and the runway is

  91. physics

    4. An airplane has an air velocity of 200 m/s [W]. The wind velocity relative to the ground is 60 m/s [N]. a. Determine the velocity of the airplane relative to the ground. b. The airplane now faces a headwind of 60 m/s [E]. Calculate how long it takes the

  92. Chemestry 095

    Complet and balance the following equation. F2 (g) + HCI (g) == ?? Which element or ion is oxidized and which one is reduced? Which one is the oxidizing agent and which is the reducing agent?

  93. Physics

    A 8.0×10−2- toy airplane is tied to the ceiling with a string. When the airplane's motor is started, it moves with a constant speed of 1.30 in a horizontal circle of radius 0.49 , as illustrated in the figure . Find the angle the string makes with the

  95. Biology/Chemistry

    During a “perm”, disulfide bonds can be broken and reformed using which treatments, respectively? I think the answer is a. but can someone confirm this? a. an oxidizing agent followed by a reducing agent b. a reducing agent followed by the use of water

  96. science

    Which of the following can be classified as a bacterial infectious agent? a)an agent that is transmitted by a non-living thing that uses cells to carry out its functions b)an agent that is transmitted by a single-celled organism that can be treated with

  97. physics

    An airplane of mass 1.6 x 10^4 kg is moving at 58 m/s. The pilot then revs up the engine so that the forward thrust by the air around the propeller becomes 7.0 x 10^4 N. If the force exerted by air resistance on the body of the airplane has a magnitude of

  98. Science(chem)

    This question relates to what someone posted below... It was explained to them that a reducing agent is oxidized when it reduces? I would like to get this concept straightened out in my head. I originally got this concept when I did gen chem but I have

  100. english

    In The Secret, the secret is found in a a conversation. b letter. c line of poetry. d newspaper column. I think a

  101. Math

    An airplane leaves an airport,flies due north for 2 hours at 500 km/h. It then flies on a bearing of 53 degree at 300 km/h for 90 minutes. Find the bearing of the plane from the airport. If it takes the airplane 150 minutes to fly back to the airport,find

  102. Physics

    A long straight horizontal segment of wire with 0.060 m traverses a west magnetic field with 2.0 T. If a south current with 4.0 A flows through the wire, which one of the following statements concerning the effect of the magnetic force on the wire is true.

  103. physics 1 please help!

    A man seeking to set a world record wants to tow a 106000-kg airplane along a runway by pulling horizontally on a cable attached to the airplane. The mass of the man is 77 kg, and the coefficient of static friction between his shoes and the runway is 0.99.

  105. physics

    When an airplane is in level flight, its weight is balanced by a verticallift, which is a force exerted by the air. How large is the lift on an airplane in such flight if the mass ofthe airplane is 1.20 x 10 cubed kg.?

  106. Chem Lab

    Suggest another possible oxidising agent and reducing agent that can be used to replace potassium permanganate & iron (II) ammonium sulphate haxahydrate in experiment Redox Titration

  107. Phsics

    A woman in a car in a level ground sees an airplane travelling in the same direction but climbing an angle of 30 degrees above the horizontal.by driving at 110 km/h she is able to stay directly below the airplane.Find the airplanes velocity

  108. math :)

    1. A toy airplane is 10 inches long.If the actual airplane is 75 feet long, find the scale of the model. A. 2:14 ft B. 1:90 ft C. 4:25 ft D. 1:120 ft My answer is B ?

  110. physics

    4 Consider an airplane with a total wing surface of 90 m^2. At a certain speed the difference in air pressure below and above the wings is 4.2% of atmospheric pressure. Find the lift on the airplane.

  111. physics

    Consider an airplane with a total wing surface of 90 m^2. At a certain speed the difference in air pressure below and above the wings is 4.2% of atmospheric pressure. Find the lift on the airplane.

  112. physics!!

    You are a secret agent and find that you have been pushed out of an airplane without a parachute. Fortunately, you are wearing a large overcoat (as secret agents often do). Thinking quickly, you are able to spread out and hold the overcoat so that you

  113. English

    1. Don't tell anyone about it. It's a top secret. ----------------------- If we want to talk about the next valuable secret, what expression can we use? 2. It's a second top secret. 3. It's the next top secret. 4. It's a second class secret. (Do we have to

  115. english

    preview the following titles of novels,which one would you expect to be aboutthe adventures of a sled dog? A.the call of the wild B.sons and lovers C.a passage to india d.the secret agent

  116. physics

    Trying to escape his pursuers, a secret agent skis off a slope inclined at 30° below the horizontal at 60 km/h. To survive and land on the snow 100 m below, he must clear a gorge 60 m wide. Does he make it? Ignore air resistance.

  117. Algebra

    Agents J and K work in a long hallway with 4000 equally-spaced, consecutive offices. The agents decide to walk toward each other so they can meet and have lunch together. Agent J has recently been relocated from office 2013 to office 1. His former office

  118. English

    Can you please check these sentences and tell me which one are possible? Thank you. 1) He didn't let on the secret to anyone. He didn't let out the secret to anyone. 2) He didn't let on that he knew Mary's secret. He didn't let out that he knew Mary's

  120. physics 1 please help!

    A man seeking to set a world record wants to tow a 106000-kg airplane along a runway by pulling horizontally on a cable attached to the airplane. The mass of the man is 77 kg, and the coefficient of static friction between his shoes and the runway is 0.99.

  121. algebra

    Janet told a secret to 4 friends. The next day, each of Janet's friends told the secret to 3 more people. The process continues for multiple days. Which function represents the number of people who will know the secret on the nthnth day? A.

  122. Physics

    A 79.4 kg bobsled is pushed along a horizontal surface by two athletes. After the bobsled is pushed a distance of 7.1 starting from rest, its speed is 4.7 m/s. Find the magnitude of the net force on the bobsled. Answer in units of N.

  123. physics

    In the figure, a radar station detects an airplane approaching directly from the east. At first observation, the airplane is at distance d1 = 350 m from the station and at angle θ1 = 31° above the horizon. The airplane is tracked through an angular

  125. Chemistry

    Can anybody understand me about oxidising agent and reducing agent

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