1. Calculus

    A bright light on the ground illuminates a wall 12 meters away. A man walks from the light straight toward the building at a speed of 1.2 m/s. The man is 2 meters tall. When the man is 4 meters from the building, how fast is the length of his shadow on the
  2. English

    Here are the linguistic objectives which I'm going to vary as English should be the lingua franca. Is it correct to mention the objectives using the gerund??? They didn’t consider the pupils’ point of view. What do you think? 1) Linguistic objectives :
  3. Solar Energy

    Family Cartman has a small house in the country side which is not connected to the grid. The place enjoys 4 equivalent sun hours. Therefore, Mr Cartman has decided to install an off-grid PV system in the house to supply the required electicity in the
  4. physics

    A 975 N object is pulled at a constant velocity up an incline with a force of 327 n parallel to the incline as shown in the diagram. Assume that the difference between the work output and the work input is the work required to overcome friction. a) what is
  5. Physics

    a 975 N object is pulled at a constant velocity up an incline with a force of 327 n parallel to the incline as shown in the diagram. Assume that the difference between the work output and the work input is the work required to overcome friction. a) what is
  6. stats

    Anita's a fast food chain specializing in hotdogs and garlic fries, keeps track of the proportion of its customers who decide to eat in the restaurant so it can make decisions reguarding possible construction of the in-store play areas.the attendance of
  7. physics

    20.00 cm of space is available. How long a piece of brass at 20°C can be put there and still fit at 200°C? Brass has a linear expansion coefficient of 19 × 10^-6/C°. 1-19.93 cm 2-19.69 cm 3-19.50 cm 4-19.09 cm
  8. Physics

    What is the frequency of the electromagnetic radiation from outer space that reaches the earth with a wavelength of 1 x 105 m, and a velocity of 1 x 105 m/s?
  9. math

    a room is 30 ft long, 25 ft wide and 14 ft high. if 42 balloons are inside the room, how many cubic feet of space does this allow for each balloon?
  10. Itt-Tech

    How much space does the dining are take up for an airship assume the mass of the balloon is 1000kg and dining are for 100 quest
  11. Physics

    Two things infinite sheets have uniform surface density of charge+5 and _5 .electric field in space between two sheets is
  12. physics

    Two charges q = 3.0ì C are fixed in space a distance d = 4.5 cm apart. With V = 0 at infinity, What is the potential energy U of the three-charge configuration when the third charge is in place?
  13. hardware

    What percentage of the address space of IP4 do the network classes of A, B, and C represent? ( Hint: Think of the classes in terms of power of 2.)
  14. AP Biology

    With regards to photosynthesis, if the following problems occurred, how would photosynthesis be affected? 1.) a.) NADP+ is not present in the thylakoid space b.) CO2 is not available to the plant Thanks
  15. linear algebra urgent

    Use the Gram-Schmidt process to transform the basis 1 1 1 , 0 1 1 , 2 4 3 for the Euclidean space R3 into an orthonormal basis for R3.
  16. Physics

    the space shuttle is in a 250 mile high orbit. What are the shuttle's orbital period, in minutes, and it speed?
  17. math

    Please can you me What a linear inequality describes the graph of a dashed line passing through (0,3) and (6,0) with the space beneath the graph shaded?
  18. college math

    Some people feel that the ideal temperature for an office space is 72.0F. What is the temperature in C? The formula I used is F= 9 x 72 + 32 = 648 + 32 Is this correct so far
  19. Geography

    13. Distance - decay and Time-Space Compression represent the same thing within diffusion. True False True?
  20. Earth/Space Science

    Explain why scientific ideas that have been subject to many tests are still considered theories and not scientific laws.
  21. Marine Science

    Organisms on a rocky shore compete for all of the following except? 1) Affection 2) Nutrients 3) Space 4) Light I think the answer might be light but im not sure.
  22. statistics

    A lottery uses 4 urns containing chips 0 to 9. One chip is selected at random from each urn. How many sample points are in the sample space?
  23. math

    A pair of dice is rolled.What is the probability that the sum of the pips is either an even number on a multiple of 3? total number of space is 36.
  24. Statistics

    A lottery uses 4 urns containing chips 0 to 9. One chip is selected at random from each urn. How many sample points are in the sample space?
  25. physics

    An electron is traveling through a region of space in which the electric field is along the +x direction and has a magnitude of 1560 N/C. What is the acceleration of the electron?
  26. Calculus

    The position vector r(t) = <7t, 6cost, 6sint> describes the path of a particle in space. What is the particle's speed? A. 3√7 B. √93 C. √85 D. 149 E. 21
  27. statistics

    what is the sample space for this experiment: select two cards from a deck of 52 cards and observe the color of each card drawn.
  28. math

    A 6-sided die is rolled. The sides contain the numbers 1, 2, 3, 4, 5, 6. List the sample space of rolling one die. 9) _______ A) {6} B) {36} C) {1, 2, 3, 4, 5, 6} D) None of these
  29. CALCULLUS

    Question 2: If is the position of a particle in space at time .Find the angle between the velocity and acceleration vectors at time
  30. science

    imagine you are in a spaceship flying from the earth - describe what you see from the space and how you feel as it moves out of the gravitation pull of earth?
  31. Physics

    20.00 cm of space is available. How long a piece of brass at 20°C can be put there and still fit at 200°C? Brass has a linear expansion coefficient of 19 × 10^-6/C°. 19.93 cm 19.69 cm 19.50 cm 19.09 cm
  32. science

    imagine you are in a spaceship flying from the earth - describe what you see from the space and how you feel as it moves out of the gravitation pull of earth?
  33. MATH Prob.

    A 6-sided die is rolled. The sides contain the numbers 1,2,3,4,5,6. List the sample space of rolling one die.
  34. bio

    How are the various types of blood vessels different in structure? How do these structural differences relate to their functions? Consider the presence of valves, muscular control of constriction and dilation, and the presence or absence of multiple tissue
  35. Bio(its urgent!)

    according to cell theory, the cell is the basic unit of structure and function in the body. in two or more sentences, explain how this fact relates to the need for digestion. please i help! i have searched the sites but cannot find a answer...... plz help!
  36. statistics

    Assume that you own a small factory. A critical piece of machinery in your factory will need to be replacedin 180 days. If the machinery does not show up on time, you will need to shut down until it arrives. This might cause you to permanately lose
  37. Statistics

    A Youth Correction Center completed a study to explore the proportion of delinquent behaviour, according to birth order, among two groups of teenagers (males and females, age 12-17). The data are given in the table below. Determine whether there is a
  38. Stats

    Hello, I need help determining what x and y are in this question.inoder to answer this question:What is the correlation between the rankings of the two psychiatrists? A psychologist has constructed a paper and pencil test purported to measure depression.
  39. stats

    Hello, I need help determining what x and y are in this question.inoder to answer this question:What is the correlation between the rankings of the two psychiatrists? A psychologist has constructed a paper and pencil test purported to measure depression.
  40. Chemistry

    Calcium fluoride is the well-known mineral fluorite. It is known that each unit cell contains four Ca2+ ions and eight F- ions and that the Ca2+ are arranged in a face-centered cubic lattice. The F- ions fill all the tetrahedral holes. The edge of the CaF2
  41. Algebra 2

    I am trying to factor a 4th degree polynomial that does not have any rational roots. I need to somehow get it factored into two quadratics. Anyone know of a method to use. 3x^4 - 8x^3 - 5x^2 + 16x - 5 Two of the irrational roots are 1.135.. and 0.382.. but
  42. Flotation machine can meet the performance require

    Flotation Machine can be used to separate nonferrous metal, ferrous metal, heavy metal, nonmetallic mine, chemical material and recycling minerals. Each chute can inhale gas, sink magma, separate. No assiting equipments are required, and Flotation Machine
  43. Chemistry

    Predict the order of increasing vapor pressure (at a given temperature) for the following compounds: FCH2CH2F and FCH2CH2OH and HOCH2CH2OH. Explain your decision briefly. ANSWER: I suppose the order is FCH2CH2F and FCH2CH2OH and HOCH2CH2OH (increasing from
  44. Finance

    In an amortized loan, the principal portion: increases with every payment and is zero with the last payment. increases with every payment and completely repays the loan with the last payment. increases with every payment but at a decreasing rate. does not
  45. Organic Chemistry

    Order the following in order of increasing bond vibration frequency: O-H, sp3 C-H, sp C-H, sp2 C-H A. O-H < sp3 C-H < sp C-H < sp2 C-H B. sp3 C-H < O-H < sp2 C-H < sp C-H C. sp2 C-H < sp3 C-H < sp C-H < O-H D. sp3 C-H < sp2
  46. geometry

    Xenia is ordering a cake for her friend’s wedding. She knows that there will be 110 guests at the wedding, and she is trying to decide how large a cake to order. She has been told that each guest should get a piece of cake that is 4 inches by 4 inches.
  47. geometry

    Xenia is ordering a cake for her friend’s wedding. She knows that there will be 110 guests at the wedding, and she is trying to decide how large a cake to order. She has been told that each guest should get a piece of cake that is 4 inches by 4 inches.
  48. geometry 2

    Xenia is ordering a cake for her friend’s wedding. She knows that there will be 110 guests at the wedding, and she is trying to decide how large a cake to order. She has been told that each guest should get a piece of cake that is 4 inches by 4 inches.
  49. Physics

    Hey, have a question in Physics From a power magazine released 300,000 gallons of water pr.sekund into a pipeline leading to a turbine plant. Height difference between the magazine and the turbines are 300meter. The turbines provide 0.7 GW power. How large
  50. chm

    The Lewis dot structure of ammonia, NH3, reveals that it has one lone pair of electrons and three bonds (each to a hydrogen) around the central nitrogen atom. According to VSEPR theory, what molecular shape will it have? i thought it was tetrahedral but
  51. Basic English

    9. Which of the following sentences contains a comma splice? A. Our friend, who travelled from Tennessee, was quite tired when he arrived. B. The kitten climbed the drapes, it couldn't figure out how to get down. C. The cruise ship docked on Oahu, then
  52. physical science

    The exact question how are the following terms related - subatomic particels and atomic mass unit. The heading on the page is review and reinforcement structure of an atom - the three main subtomic particles are the proton, the nuetron and the electron.
  53. Biology II

    Discuss the biological importance of each of the following organiz compounds in relation to cellular structure and function in plants and animals A) Carbohydrates B) Proteins C) Lipids D) nucleic acid Like my problem is I don't really get what it is asking
  54. english literature

    What is the best way to structure and answer an essay with a question that has more than one question in a question
  55. Physics

    A solar panel (an assemblage of solar cells) measures 58 cm x 53 cm. When facing the Sun, this panel generates 2.7 A at 14 V. Sunlight delivers an energy of 1.0×10^3 W/m^2 to an area facing it. What is the efficiency of this panel, that is, what fraction
  56. Electricity

    when an electron is displaced in a semiconductor, the hole that's left behind is? A)attracted to the negative terminal of the voltage source. B)incapable of carrying a charge. C)attracted to the anode of the voltage source. D)considered an impurity in the
  57. science

    A researcher wants to develop a new pharmaceutical compound to treat pain. Which of the following strategies will likely be the most effective process? A. Test extracts from newly discovered plants for pain-killing substances. B. Read anthropological
  58. Government

    With regard to public opinion,the Supreme Court: A.ignores it completely in order to make decisions that are based on enduring values rather than the public's passing whims. B.remains uninformed about it because justices stay on the bench for life and
  59. Chem

    Define isoelectronic series. Put the K+, Ca2+, Cl-, and Ar ions and atoms in order of increasing size and explain the trends. Count the number of electrons for each atom Then, explain the (column) size trend for Mg2+ versus Ca2+ ions Is the order cl k ca
  60. World history; Check:P

    Write a one paragraph essay on how developments in technology influenced the rise and decline of the Assyrian Empire. The Assyrians were the first to use iron in their weapon works. They used it in spears, swords, shields and armor. They had the most
  61. Program planning

    Developmentally appropriate curriculum A. teaches children about development. B. provides easy activities. C. allows children to choose the structure for their own experiences. D. requires children to learn academic content.
  62. English

    Which of the following best defines parallelism? A. the use of symbols and figures of speech B. the repetition of a grammatical structure or arrangement of words C. the use of words or phrases with emotional associations D. the expression of the same idea
  63. English (quick Sentence)

    Hi Teachers, I wrote a sentence in which i think has a wrong sentence structure. Will you correct me with it, please? When his daughter told us of what he said we promised that we will all be in part of helping him and making him feel like family.
  64. English

    Replace the underlined portion or leave it. 1. The study of Kenya's history as a colony will help you see how colonialism works and thus understand how destructive it was to the people were colonized. Underlined portion: people were a. no change b. people
  65. stemplot one more question

    No, I don't think you should round the data. The stems should probably be the numbers 13,14,15,...,19 Line them up like this with the leafs to the right S L 13 |9 14 |8,9 15 |2,8 . . . You can finish it. Starting the stems with 1 would accomplish nothing
  66. CENE

    A primary sedimentation tank that has a removal efficiency of 65% and settles out solids from a wastewater that has a SS concentration of 220 mg/L. The wastewater flows into the sedimentation tank at a rate of 2.35 million gallons per day (MGD). How many
  67. Math

    The cost of an order of 10 computer disks and 3 packages of paper was $27. The next order was for 30 disks and 5 packages, and the cost was $65. Find the cost of a single disk and a single package of paper.
  68. Math statistisc

    I have a 6 sided dice with numbers 1 to 6 written on faces. What number(s) would have to show up if you rolled the die five times in order to have the smallest possible standard deviation? What number(s) would have to show up if you rolled the die 5 times
  69. Math statistisc

    I have a 6 sided dice with numbers 1 to 6 written on faces. What number(s) would have to show up if you rolled the die five times in order to have the smallest possible standard deviation? What number(s) would have to show up if you rolled the die 5 times
  70. Chemistry

    1) The order of the boiling points for the hydrogen halides, except for HF, is HI > HBr > HCl. The reason for this order can be attributed to a) the relative covalent bond strengths. b) differences in hydrogen bonding. c) differences in dipole-dipole
  71. computer science(Algorithm)

    An m X n YOUNG TABLEAU is an m X n matrix such that the entries of each row are in sorted order from left to right and the entries of each column are in sorted order from top to bottom. Some of the entries of YOUNG TABLEAU maybe ¡Þ, which we treat as
  72. Math statistisc

    I have a 6 sided dice with numbers 1 to 6 written on faces. What number(s) would have to show up if you rolled the die five times in order to have the smallest possible standard deviation? What number(s) would have to show up if you rolled the die 5 times
  73. calculus

    A bright light on the ground illuminates a wall 12 meters away. A man walks from the light straight toward the building at a speed of 1.1 m/s. The man is 2 meters tall. When the man is 4 meters from the building, how fast is the length of his shadow on the
  74. i need help completing this MATH question!

    ORDER OF OPERATIONS step 1. first do operations that accur within_____________. step 2. then evaluate_________. step 3. then do_________and_______from left to right. step 4. finally, do______and_______from left to right. here are your choices in
  75. chemistry

    three compounds A,B and C all have the formula C5H8. All three compounds will decolorize bromine in CCl4. Compound A reacts with NaNH2. Compounds A and B both yield pentane when they are treated with excess H2 with the pt catalyst. Under the same
  76. Chemistry

    1. The decomposition of acetaldehyde is a second order reaction with a rate constant of 4.71 × 10^−8 L/mol/s. What is the instantaneous rate of decomposition of acetaldehyde in a solution with a concentration of 5.55 × 10^−4 M? 2. The rate constant
  77. Calculus

    1.At noon of a certain day,ship A is ^0 km due north of ship B. If A sails east at 12 km/hr and B sails north 9 km/hr,determine how rapidly the distance between them is changing 2 hrs later. Is it increasing or decreasing? 2.At a given instant the legs of
  78. Math

    Arrange these in order from least to greatest: arctan(-sqrt3), arctan 0, arctan(1/2) So far I got the first two values, arctan(-sqrt3), and that's 150 degrees. Arctan 0 would be zero degrees. I'll use just one answer for now, but I know there's more than
  79. calc

    Consider the function below. (Round the answers to two decimal places. f(x) = 2x tan(x) -p/2 < x < p/2 (a) Find the interval where the function is increasing. Find the interval where the function is decreasing. (b) Find the local minimum value. (c)
  80. Math

    Redo problem 13 from section 1.8 of your textbook (page 62), but use the functions in the questions below rather than the functions in your textbook: (a) In order to express the function y = 1311 x − 4, as a composition of two functions the outer of
  81. electrical engineering

    A 3-ph., 4-pole, 60Hz induction motor is supplied by a 660-V source. At a particular loading, the total power consumed is 65KW and the current drawn from supply is 70A (assume star connection). The rotor speed is 1760rpm. The stator iron losses are 1.2KW,
  82. chemistry ASAP please!!

    The reaction of CO(g) + NO(g) is second-order in NO2 and zero-order in CO at temperatures less than 500K. (a) Write the rate law for the reaction. (b) How will the reaction rate change if the NO2 concentration is halved? (c) How will the reaction rate
  83. Science

    The Millennium Force is the highest roller coaster in North America. It reached a maximum height to 94.5 m. The total mass of the roller coaster car and its passengers is 1380 kg. The speed of the roller coaster is 41.1 m/s at its lowest point on the
  84. pharmaceutical calculations

    1. A chemical crystal weighs 3.630 grams in air and 1.820 grams when immersed in an oil. If the specific gravity of the oil is 0.837, what is the specific gravity of the chemical? 2. A piece of wax weighs 42.65 grams in air, and a sinker weighs 38.42 grams
  85. Government

    Use what you've learned about the structure of Russia's government and the power of its branches to describe how public policy is created in Russia today
  86. Chemistry

    The network parameter of molybdenum 0.314 Valley nm and its density to 20° C 10.22 Valley g/cm3. Determine the crystalline structure of the molybdenum
  87. physics

    The Eiffel Tower is a steel structure whose height increases by 19.5 cm when the temperature changes from -9 to +41 oC. What is the approximate height (in meters) at the lower temperature?
  88. finance

    What makes up a company's capital structure? Explain the purpose of determining the weighted average cost of capital for a company.
  89. physics

    The Eiffel Tower is a steel structure whose height increases by 19.0 cm when the temperature changes from -9 to +41 oC. What is the approximate height (in meters) at the lower temperature?
  90. Chemistry

    Draw the lewis dot structure showing what happens during the reaction Lithium and Chlorine produce Lithium Chloride. how do you draw this, please help .
  91. art history

    Which of the following structure is indigenous in China? >pagodas >obelisks >mastabas or >totem poles? I think the answer is totem poles.
  92. English

    In Hermann Hesse's Siddhartha, describe the sentence structure--simple, compound, complex, compound-complex or a mix
  93. physics

    The Eiffel Tower is a steel structure whose height increases by 19.7 cm when the temperature changes from -9 to +40 oC. What is the approximate height (in meters) at the lower temperature?
  94. Science-Universe and Stars

    It says that I have to develop a concept map about the milky way. What is that? Is it like a web or something? It says that I have to develop it to understand the milky way's structure and composition.
  95. government

    the federal bureaucracy is a. all the agencies, people, and procedures through which the federal government operates b. hierarchical in structure c. headed by the president d. all of the above d
  96. American Government, Lesson 1 Unit 3

    When the Framers created the legislative branch of government, why did they decide that this branch would have a bicameral structure?
  97. English

    Hello. I wanted to ask if it is possible to use the progressive form of "expect" in the following structure: "he is expecting his brother to arrive before Friday" or is it "he expects his brother to arrive"? Thank you very much for your help.
  98. Math

    Hi, I am doing a practice exam, and I came across this problem and I am have difficultly starting it. A UFO flies horizontally at a constant speed at an altitude of 15 km and passes directly over a tracking telescope on the ground. When the angle of
  99. math

    Two players play a game on the Cartesian plane. The game starts by placing a token at a lattice point in the first quadrant. The players alternate turns, with player one going first. On her turn, player 1 can move the token 2 units to the left or 1 unit
  100. Physics

    An army of armadillios is attacking Cosine Castle where the coyotes reside. If an army must clear the 45 meter walls by 5 meters, at what angle must they set their cannons (from the horizontal) in order to fire inside the castle walls? The cannons fire