Questions Asked on
January 29, 2015

  1. Chemistry

    consider the following reaction at 298K 4Al(s)+3O2(g) yields 2Al2O3(s) delta H= -3351.4 Kj find delta S sys find delta S surr find delta S unvi

    asked by Jake
  2. Science

    2. why is gas able to flow? a) Its particles have melted and can move around b) Its particles have high viscosity and can move around c) Its particles have enough energy to move around d) Its particles have enough pressure to move around 3. Which of the

    asked by Kennabug
  3. URGET!!

    DOING A 20 QUESTION MATH TEST AND GOT STUCK ON THESE PROBLEMS!!:( 1.find the three terms in the sequence 30,22,14,6,.... 2.write a rule for the sequence 4,8,16,32 3.find the first-four terms of the sequence represented by the expressed sequence 3n + 5. 4.a

  4. Algebra 2

    what is the inverse of the given relation? y=3x+12 help explain the steps??

    asked by Jasmine
  5. calculus

    A trough is 9 feet long and 1 foot high. The vertical cross-section of the trough parallel to an end is shaped like the graph of y=x4 from x=−1 to x=1 . The trough is full of water. Find the amount of work in foot-pounds required to empty the trough by

    asked by Catherine
  6. Math

    The perimeters of a kitchen is 528 inches.If the width of the kitchen is 120 inches,what is the length of the kitchen?

    asked by Anonymous
  7. EdTech

    1.what contributes to your passive digital footprint? A)entering your address into a website to sign up for a contest B) cookies that track your online habits**** C) uploading a profile picture to a social media site D) posting information on your personal

    asked by Ziggy
  8. Social Studies did northern and southern responses to the fugitive slave law affect their relationship? deepened fear and anger between the north and south deepened the commitment to compromise encoraged northern commitment to end plantation life

    asked by i am awesome
  9. Math

    Which is NOT an appropriate classification for a triangle? A. Right Equilateral B. Acute Scalene. C. Obtuse Isosceles D. Right Scalene Is the answer D? Thank you

    asked by Callie
  10. Physics

    A 50 cm diameter wheel rotates through 25 radians. How do I figure out the amount of distance it will move?

    asked by Anna
  11. math

    Homeroom 101 and Homeroom 102 share a hallway bulletin board. If Homeroom 101 uses 3/5 of their half to display artwork, what fraction of the board is used to display to display Homeroom 101's artwork? Which is correct-3/5 x 1/2 , 3/5 divided by 1/2. or

    asked by Angel
  12. LA

    Can you help me with this question? What is the secret to reaching someone with words??

    asked by Anonymous
  13. Math

    Hi everyone! I am extremely struggling with this questions and was hoping someone would go over them with me. Thank you! 1. Which of the following expressions is written in scientific notation? a. 73.4 x 10^5 b. 0.09 × 10^7 c. 80 x 10^3 d. 4.22 x 10^–3

    asked by Tia
  14. Maths

    Two observers P and Q 15m apart observe a kite in the same vertical plane and from the same side of the kite.The angle of elevation of the kite from P and Q are 35 degree and 45 degree respectively.Find the height of the kite to the nearest metre.

    asked by Debbie
  15. Social Studies

    1.Mark the statement if it is a reason that Rome was a good site for a city. A. Rome was located on a large river.** B. Rome was built on seven hills, which offered natural protection from invaders. C. Rome had an ideal seaport.** D. The climate of Rome

    asked by Anonymous
  16. math

    find the unit price for each option shown below. round to the nearest cent if nessicary indicate which option is better to buy?

    asked by lilly
  17. Chemistry

    Assuming equal concentrations and complete dissociation, rank these aqueous solutions by their freezing points. CoCl3 K2CO3 KNO3

    asked by Megan
  18. Art

    Ancient native americans chose willow strips to make baskets because they were easy to bend and 1.easy to find. 2.rare and valuable. 3.multi-colored. 4.waterproof. Please help :-(

    asked by Helper
  19. Art

    What is synthetic resin preferable to natural resin? A. synthetic resin will not yellow, crack, or dissolve in liduid. B. synthetic resin will not yellow, obscure, or damage in paint. C. synthetic resin will not destroy paint pigment, crack, or yellow the

    asked by Anonymous
  20. chemistry

    Rank the following species according to the increasing energy needed to raise the temperature of 10.0 g of the substance by 25.0 ∘C. Aluminum-.897J/g water- 4.184J/g Stainless steel - .500J/g cast iron- .460J/g copper-.385J/g Can someone please show me

    asked by Court
  21. Spanish

    Which of the following is usally included in Gabriel Garcia Marquez's writings? 1. travels abroad during war,food,politcs,and conflicts in south america 3.magic superstition about food in La Candelaris Please Help :-(

    asked by Helper
  22. Math Help!!

    When the owner of a gas station sets the price of 1 gallon of unleaded gasoline at 2$, he can seek approximately 20,000 gallons per day. When he sets the price of gas at 5$ per gallon, he can sell approximately 14,000 gallons per day. Let G(x) denote the

    asked by Victoria
  23. Science

    1. Which of the following best summarizes the function of the respiratory system? A. to transport oxygen to cells and wastes away from cells. B. to protect the organs in the chest cavity C. to move oxygen from the air into the body and carbon dioxide from

    asked by Anonymous
  24. tech cheack answers plz

    1.) Which of the following is the best strategy for studying test? a) Sitting alone in a chair in a quiet room, looking over your textbook. b) Working in pairs and exchanging practice questions. c) Developing a personal method that is right for you and

    asked by techr
  25. business math

    A second hand furniture store buys sofas with a list price of $9,500. If the wholesaler offers trade discounts of 10/20/30, find the single equivalent discount.

    asked by tia
  26. economics,english,mathslit,accounting,business,zul

    Iam in matric Nd would like to be in the university in JHB,PTA i am doing maths lit accounting economics business studies english and isizulu

    asked by siyabonga mhlanga
  27. Technology

    Which of the following is benefit that education simulations do NOT provide? A.They use real objects that can physically be touched. B. They allow you to manipulate the objects by turning them around virtually. C. They can use 3-D movement and objects. D.

    asked by Tia
  28. physics

    An owl is carrying a mouse to the chicks in its nest. Its position at that time is 4.00 m west and 12.0 m above the center of the 30.0 cm diameter nest. The owl is flying east at 3.50 m/s at an angle 30.0º below the horizontal when it accidentally drops

    asked by kaval
  29. Chemistry

    A chemical company claims that they are able to produce a certain product through thermodynamically favored process. Explain how this is possible?

    asked by Anonymous
  30. math

    explain the error Janine tells her friend that ordered pairs have an x coordinate of 0 lie on the x axis. She uses the origin as an example. Describe Janine's error. Use a counterexample to explain why Janine statement is false.

    asked by camryn
  31. Social studies

    how did northern and southern responses to the fugitive slave law affect their relationship? deepened on fear and anger deepened the commitment to compromise encouraged northern commitment to end plantation life encourage southern

    asked by Alyssa
  32. math

    Which property is NOT a characteristic of a parallelogram? a) Opposite sides are congruent b) All angles are congruent c) Opposite sides are parallel d) Opposite angles are congruent

    asked by Skylar
  33. Chemistry

    Suppose you tired to carry out a double-replacement reaction by mixing together equal volumes of a solution that contained dissolved NaF and a solution that contained dissolved NaCl. Would you expect a reaction, if so write the balanced chemical equation?

    asked by Keely
  34. chemistry

    if you burn 20.2g of hydrogen and produce 1.80x10^2g of water, how much oxygen reacted?

    asked by mohamed
  35. Science

    According to the theory of plate tectonics, how do two plates interact to form coastal volcanic ranges? A. A continental plate slides along an oceanic plate at a convergent boundary. B. A continental plate collides with another continental plate at a

    asked by Anonymous
  36. Statistics Helps

    Carter has a large marble collection. Carter knows that he has exactly 20 blue marbles in his collection, but does not know how many marbles he has in all. Carter mixes up his marbles and randomly selects 40 marbles. Of the 40 marbles that he chose, 4 were

    asked by Desmond
  37. Science!!

    **PLEASE HELP FAST** how is newton's second and third law of motion important to your everyday life?? **PLEASE HELP**

    asked by Sophiaa
  38. physics

    A ball rolls off a 1.40 m high table with an initial horizontal speed of 0.600 m/s. How far will it land?

    asked by axel
  39. Art

    What is synthetic resin preferable to natural resin? A. synthetic resin will not yellow, crack, or dissolve in liduid. B. synthetic resin will not yellow, obscure, or damage in paint. C. synthetic resin will not destroy paint pigment, crack, or yellow the

    asked by Kayleigh
  40. chemistry

    4FeS (s) + 7O2 (g) --> 2Fe2O3 (s) + 4SO2 (g) Entropy value for iron (II) sulfide is 67 J/K mol I don't understand how to find entropy

    asked by baehji
  41. English

    In "One Day, Now Broken in Two," what group of people does Quindlen decide are “correct” in their views? A. the optimists B. the pessimists C. the realists I think it's A

    asked by Emi
  42. georgia state history

    One of the reasons given for the colonization of Georgia was to serve as a "buffer" colony. This meant that Georgia was

    asked by jam
  43. chemistry

    What is the mass (in kilograms) of a cube of silver that measures 0.26m on each side

    asked by felicia
  44. Physics

    A hollow metal sphere has inner and outer radii of 20.0 cm and 30.0 cm, respectively. As shown in the figure, a solid metal sphere of radius 10.0 cm is located at the center of the hollow sphere. The electric field at a point P, a distance of 15.0 cm from

    asked by Matt
  45. LA

    Good Morning Ms. Sue. Can you look over my answer. Thank you :) Which of the following describes the word dew? A) What happens when you don’t get enough sleep for a few nights? B) What happens to your teeth when you get too much candy? C) What happens to

    asked by Anonymous
  46. physics

    What potential difference is needed to stop an electron having an initial speed of 3.70x 105 m/s? Answer in volts

    asked by Allie
  47. Chem

    I just need to know if I did the problem correctly. The decomposition of phosphine, a very toxic gas, forms phosphorus and hydrogen in the following reaction: 4PH3(g) → P4(g) + 6H2(g) If the instantaneous rate of the reaction with respect to PH3 is -0.41

    asked by Anonymous
  48. social studies

    Regarding the Electoral College, which of the following statements is false? A. Electors vote on the first Monday after the second Wednesday in December. B. The electoral vote results are transmitted to the Secretary of State. C. The electoral college is

    asked by tamijah23
  49. Math

    Name the quadrilateral with exactly one pair of parallel sides. A. Kite B. Parallelogram C. Rhombus D. Trapezoid Is the answer D? Thanks

    asked by Callie
  50. physicss

    A 0.145 kg baseball pitched at 44.0 m/s is hit on a horizontal line drive straight back toward the pitcher at 52.0 m/s. If the contact time between bat and ball is 3.00 ✕ 10-3 s, calculate the average force between the ball and bat during contact.

    asked by Bob
  51. College Algebra

    Allison drove home at 65 mph, but her brother Austin, who left at the same time, could drive at only 41 mph. When Allison arrived, Austin still had 144 miles to go. How far did Allison drive?

    asked by Sierra
  52. english

    In this discussion, you will post issues related to motivation and learning. Refer to the texts in this section, other texts you have read, and your personal experience and knowledge to support your ideas. Begin your discussion by addressing the following

    asked by jacky
  53. physics

    Two point charges are placed at two of the corners of a triangle (Take q1 = -10.2 µC, and q2 = 16.3 µC.) Find the magnitude and the direction of the electric field at the third corner of the triangle.

    asked by Sam
  54. physics

    With an average acceleration of −1.3 m/s2 , how long will it take a cyclist to bring a bicycle with an initial speed of 13.7 m/s to a complete stop? Answer in units of s.

    asked by Anna
  55. Programming Logic and Design

    The Romance World Cruise Line provides special gifts and celebrations for passengers who are newlyweds, as well as for those who have been married more than 40 years. Design a flowchart and pseudocode for a program that accepts a couple's last name, ship

    asked by Wayne
  56. Science

    Which type of climate receives the most intense solar energy? A. grasslands climate B. tropical climate** C. polar climate D. temperate climate

    asked by Anonymous
  57. personal finance

    As a college senior, Jessica was offered a new credit card that allowed her to take a 10% discount on the first month's purchases. She accepted the offer and made purchases that totaled $156.19. How much did she owe after the discount was deducted from the

    asked by star
  58. Physics

    A man in search of his dog drives first 13.3 mi northeast, then 17.3 mi straight south, and finally 6.85 mi in a direction 30.3° north of west. a) What is the magnitude of his resultant displacement? b) What is the direction of his resultant displacement?

    asked by Stacy
  59. physics

    An aircraft has a lift off speed of 130 km/h. What minimum uniform acceleration does this require if the aircraft is to be airborne after a takeoff run of 350 m? Answer in units of m/s2

    asked by Mark
  60. physics

    A +1.4-nC point charge is placed at one corner of a square (1.8 m on a side), and a -2.5-nC charge is placed on the corner diagonally opposite. What is the magnitude of the electric field at either of the other two corners?

    asked by Matt
  61. Chemistry

    I am having some chemistry problems. 3. The graph compares the 1s orbital energies for the F atom (Z = 9), the Ne+ ion (Z = 10), and the Na++ ion (Z = 11). (the graph shows F having an Orbital Energy of 692.45, Ne+ with 47.74, and Na++ with 33.52) a. How

    asked by Morgan
  62. physics

    A dragster is speeding down the track at 150m/s. its rear wheels are 2m in diameter, and its front wheels are 40cm in diameter. What are the angular velocities of the front and rear wheels, respectively?

    asked by Rico
  63. physics

    An electron moving parallel to x axis has an initial speed of 2.51x106 m/s at the origin.Its speed is reduced to 1.76x105 m/s at the point x=3.12 cm. Calculate the potential difference, in Volts, between the origin and that point.

    asked by Amy
  64. Math

    Wendy earns $2 for every table she serves plus 20% of the total customer order. Define a variable and write an expression to represent the amount of money she earns for one table.

    asked by Isa
  65. georgia state history

    What effect did Hernando de Soto’s expedition in Georgia have on Native Americans there?

    asked by jam
  66. Science

    A mineral breaks into flat sheets when struck with a rock hammer. Which property of a mineral is being measured? A. hardness B. cleavage** C. streak D. color

    asked by Anonymous
  67. math

    Adam drew two same size rectangles and divided them into the same number of equal parts.He shaded one third of one rectangle and one forth of the other rectangle.What is the least number of parts into which both rectangles could be divided?

    asked by Emily
  68. Chemistry

    In the process of separating pb2+ ions from cu+2 ions as sparingly soluble iodates, what is Pb2+ concentration when Cu+2 begins to precipitate as sodium iodate is added to a solution that is initially 0.0010M Pb(NO3)2 (aq) and 0.0010M Cu(NO3)2 (aq)? I know

    asked by Anonymous
  69. physics

    A skier of mass 74.6 kg is pulled up a slope by a motor-driven cable. How much work is required to pull the skier 63.3 m up a 39.0◦ slope (assumed to be frictionless) at a constant speed of 2.0 m/s? The acceleration of gravity is 9.81 m/s 2 . Answer in

    asked by paula
  70. marh

    Martina and Charlotte are sharing a pizza. The pizza is cut into eight pieces. Martina ate a quarter of the pizza. Charlotte ate three pieces. How many pieces are left?

    asked by perrywood
  71. physics

    Each vertical steel column of an office building supports a weight of 1.30 x 10^5 N and is compressed to 5.90 x 10^-3 A) Find the compression in each column if a wegith of 5.50 x 10^5 N is supported. B)If the compression of each steel column is 0.0710 cm,

    asked by Jonathan Camper
  72. physics

    boy throws a penny into an empty well with an initial velocity of –2 m/s. He hears it hit the bottom 8 seconds later. About how far did the penny fall?

    asked by Anonymous
  73. Phsyics

    A skier is gliding along at 2.5m/s on horizontal, frictionless snow. He suddenly starts down a 10∘ incline. His speed at the bottom is 13m/s . What is the length of the incline? How long does it take him to reach the bottom?

    asked by John


    asked by elise
  75. english

    Snow was quickly piling up on the ground. Wind howled through the trees. Karen wrapped a blanket around her and sighed as she watched the snow through her bedroom window. 15. In this passage, you can best infer that A. Karen is at home during a snowstorm.

    asked by Anonymous
  76. Need Help Physics

    The captain of a boat wants to travel directly across a river that flows due east with a speed of 1.09 m/s. He starts from the south bank of the river and wants to reach the north bank by travelling straight across the river. The boat has a speed of 6.44

    asked by Anonymous
  77. Science

    A geologist finds a layer of rock that is made of medium-grained sands and is porous. What type of rock did the geologist find? A. sandstone** B. conglomerate C. coquina D. limestone

    asked by Anonymous
  78. advanced algerbra

    Write the first four terms of the sequence that begins with 5000 and decays 15% with each term. What is the common ratio? I found that that common ratio is .85 but I'm confused on how yyou would get that?

    asked by andie
  79. Organic chemistry

    What kind of reaction is occurring between potassium permanganate and cyclohexene? (I.e. Combination, double displacement, etc.

    asked by Hannah
  80. Chemistry

    A 2.75 kg block of ice is heated until it completely melts. It is then heated again until it completely changes to water vapor. Is more energy required to melt the ice or to vaporize the liquid water.

    asked by Morgan
  81. math

    the product of two mixed numbers that are each between 4 and 5 is between 16 and 25. I think that is false. am I correct

    asked by Missy
  82. Science

    Which explains the greenhouse effect? A. Greenhouse gases like water vapor and carbon dioxide trap heat in the atmosphere, thereby radiating heat energy back into space. B. Greenhouse gases like water vapor and carbon dioxide release heat in the

    asked by Anonymous
  83. Science

    How do plants produce chemical weathering? A. They secrete carbon dioxide that combines with water on the rocks and dissolves the minerals in the rocks. B. They secrete chemicals that freeze the water within the cracks of the rocks and break down the

    asked by Anonymous
  84. Science

    Which type of weather is most likely produced by a cold front? A. light to moderate precipitation B. moderate to heavy precipitation C. no precipitation** D. heavy precipitation and thunderstorms

    asked by Anonymous
  85. Physics

    A spring of negligible mass stretches 3.00 cm from its relaxed length when a force of 7.10 N is applied. A 0.440-kg particle rests on a frictionless horizontal surface and is attached to the free end of the spring. The particle is displaced from the origin

    asked by Anonymous
  86. History

    What was Hammurabi's most important achievement as the ruler of Babylon? He built extensive canals, which carried water to many parts of his kingdom. He established permanent armies, which he used to control his empire. He appointed governors to rule over

    asked by Britney
  87. math

    THe area of a parallelogram is 594, and the lengths of its sides are 32 and 46. Determine, to the nearest tenth of a degree, the measure of the acute angle of the parallelogram

    asked by Sue
  88. physics

    A block and tackle with a velocity of 5 is used to raise a mass of 25kg through a vertical distance of 40cm at a steady rate,if the effort is equal to 60N,determine the distance moved by effort, work done by the effort in lifting the load and the loss of

    asked by happiness
  89. physics

    A juggler tosses a ball h = 2 m into the air with one hand and catches it with the other hand at the same level. Neglecting air resistance, how long is the ball in the air?

    asked by chris
  90. Math

    Find the exact value: cos(pi/16)cos(3pi/16)-sin(pi/16)sin(3pi/16)

    asked by Lala
  91. anthropology

    What are the differences between lineages, clans, moieties, and phratries are all types of decent groups.

    asked by jimmy
  92. Albebra

    Ociel has designed a square mural that measures 10 feet on each side. Bill has also designed a square mural, but his measures y feet shorter on each side. Write an expression to represent the area of Bills mural.

    asked by Anonymous
  93. Science

    In terms of density and humidity, which conditions characterize a high-pressure area? A. low density, low humidity B. high density, high humidity C. high density, low humidity** D. low density, high humidity

    asked by Anonymous
  94. Math 20-1

    A boundary line that is dashed is represented by the inequality symbol: ?

    asked by Alex
  95. Physics

    A lobsterman’s buoy is a solid wooden cylinder of radius r and mass M. It is weighted at one end so that it floats upright in calm sea water, having density. A passing shark tugs on the slack rope mooring the buoy to a lobster trap, pulling the buoy down

    asked by Rachel
  96. physics

    Heather and Matthew walk eastward with a speed of 0.90 m/s east. If it takes them 31 min to walk to the store, how far have they walked? Answer in units of km.

    asked by Alex
  97. Algebra 2

    Bugs made the trip at 40 miles per hour during the first hiatus.joan made the same trip at 50 miles per hour during the second hiatus how long was the trip if it took buggs 2 hours longer than it took joan

    asked by Jesslyn
  98. Physics

    Mark launches a projectile 65 degrees from the horizontal and it strikes the ground a certain distance away. For what other angle of launch at the same speed would the projectile land just as far away?

    asked by Kari
  99. physics

    Two forces of equal magnitude act on the same object. Which of the following must be true? a. The object is moving. b. The object is accelerating. c. If the object is initially at rest, it cannot remain at rest. d. The two forces form a third-law pair. e.

    asked by Anonymous
  100. physics

    At the instant the traffic light turns green, an automobile that has been waiting at an intersection starts ahead with a constant acceleration of 2.10m/s2 . At the same instant, a truck, traveling with a constant speed of 15.1m/s , overtakes and passes the

    asked by david
  101. english

    What Asthma Is 2 We know that family history contributes to susceptibility, but in most cases we don’t know what causes asthma to develop, and we don’t know how to cure asthma. You can control your asthma by knowing the warning signs of an attack,

    asked by Robb4301
  102. chemistry

    calculate the amount of carbon dioxide that could produced when the one mole of carbon is burnt in 8gms of dry oxygen

    asked by dambaru
  103. physics

    CRITICAL THINKING: The term ”weight” in physics has the following very specific meaning: “The weight of an object is the name given to a particular force: the gravitational force exerted by the earth on the object, giving it an acceleration of 9.8

    asked by Anonymous
  104. Science

    Which explains how climate data were used as evidence to develop the theory of continental drift? A. Similar glacial deposits and sediments were found on areas of the same continent that are now thousands of miles apart. B. Different glacial deposits and

    asked by Anonymous
  105. Science

    Earthquakes occur on the earth today, so we can assume they occurred in the past. Which important geologic principle does this sentence support? A. original horizontality B. faunal succession C. superposition D. uniformitarianism**

    asked by Anonymous
  106. Science

    How would a geologist identify an igneous rock as intrusive? A. An intrusive rock has coarse grains because it cooled more slowly on the surface of the earth. B. An intrusive rock has coarse grains because it cooled more slowly beneath the surface of the

    asked by Anonymous
  107. math

    In a recent survey 5/8 of pet owners say they allow their pet to go outside. Of these, 1/3 allow their pet outside without supervision. Does 5/8*1/3 express the fraction of the pet owners surveyed that allow their pet outside without supervision? My answer

    asked by Mel
  108. 7th grade science

    Can you help me with genetics questions? Directions: In each set, tell which word does not fit with the others. Then explain why you think it does not. You must mention all words. 1. Aa, Heterozygous, Hybrid, Homozygous Ans: Homozygous doesn't belong

    asked by Alexis (re-post)
  109. physics

    Suppose a car is traveling at +25.0 m/s, and the driver sees a traffic light turn red. After 0.564 s has elapsed (the reaction time), the driver applies the brakes, and the car decelerates at 4.00 m/s2. What is the stopping distance of the car, as measured

    asked by Anonymous
  110. S.S. Check please

    2. Why were Native Americans forced to leave their lands during the 1830s? a.) settlers wanted to settle the land b.) U.S. citizens settled the land first c.) the Supreme Court ordered their removal d.) their new lands were better for farming. ****** 4.

    asked by Hannah
  111. math

    water tower with a 20 ft. sphere at top to store water. how many gallons does it hold?

    asked by yOLANDA
  112. physics

    A speeder passes a parked police car at a constant speed of 20.1 m/s. At that instant, the police car starts from rest with a uniform acceleration of 2.65 m/s 2 . How much time passes before the speeder is overtaken by the police car? Answer in units of s.

    asked by Jesus
  113. logic and design

    algorithm for waking in the morning, making and eating breakfast, I don't feel this is enough for my teacher can you help me. start get up while not awake drink coffee endwhile if temperature < 65 then wear sweater else wear t-shirt endif if hungry then

    asked by Jan
  114. math

    A pool drains water at a rate of 3% every 5 minutes how many gallons of water are left after 50 minutes? How long will it take to have less then 1,000 gallons?

    asked by Sarah B
  115. Math

    true or false- the product of two fractions that are each between 0 and 1 is also between 0 and 1

    asked by Mel
  116. Science

    Please could someone check these for me. 1In a series of rock layers, a geologist finds fossils of a lizard-like dinosaur and a fern-like tree in layers that are 1.0 m and 1.5 m deep. However, in a layer that is 2.0 m deep, he finds fossils of bony fish

    asked by Anonymous
  117. math

    Adam used the three fractions to make a circle graph and colored each a different color. What fraction of the graph is not colored?

    asked by Tommy Rose
  118. physics

    Consider a case in which a 60 kg diver takes off from a diving board located at a height of 10 m above the water level and enters the water at a horizontal distance of 5 m from the end of the board. If the total time that the diver remains in the air is

    asked by Anonymous
  119. Physics

    Suppose you have a 3 C charge at (1,0) m and a -3 C charge at (-1,0) m. Find (a) the electric field at the point (0,3), and (b) the electric force on a charge of 3 nC placed at (0,3).

    asked by Macy
  120. physics

    A baseball is hit and moves initially at an angle of 35.0 to the horizontal ground with a velocity of 25.0 m/s. (a) What are the vertical and horizontal components of the initial velocity? (b) How long will the ball be in the air? (c) What is the range?

    asked by axel
  121. Calculus

    A hot air ballon lifts off the earth 300m away from an observer and rises straight up at a rate of 80m/min. At what rate is the angle of inclination of the observers line of sight increasing at the time the balloon is 300, above the ground?

    asked by Chris
  122. Algebra

    I had a question on a quiz that I just finished and I wanted to know if my answer was right. Is 4x-y^=0 a function. If so, what is the domain and range? If not, name two points that prove it. I wrote that it was a function with -5 and lower as a

    asked by Hutch
  123. physics

    CRITICAL THINKING: The term ”weight” in physics has the following very specific meaning: “The weight of an object is the name given to a particular force: the gravitational force exerted by the earth on the object, giving it an acceleration of 9.8

    asked by Anonymous
  124. Physics Help

    During a long airport layover, a physicist father and his 8-year-old daughter try a game that involves a moving walkway. They have measured the walkway to be 41.5 m long. The father has a stopwatch and times his daughter. First, the daughter walks with a

    asked by Anonymous
  125. college chemistry

    A sample of gas has an initial volume of 5.9L at a pressure of 759mmHg. If the volume of the gas is increased to 8.4L , what will the pressure be?

    asked by Daywana
  126. chemistry

    what hybrid orbitals would be expected for the central atom for the followings a) BrF5 b) BeCl2 c) CH3Cl

    asked by saima
  127. physics

    A ball of mass M1 moves with a velocity U1, collides perfectly elastically with a stationary ball of mass M2 . After the collision, M1 and M2 move with velocities V1 and V2 respectively. Show that : V1 =(M1-M2) / (M1 + M2 ) * U1 .

    asked by Albert
  128. math

    Miss Sue, is the answer that psydag give to Angel at 4:53 today correct? doesn't seem to add up

    asked by Missy

    Consider a case in which a 60 kg diver takes off from a diving board located at a height of 10 m above the water level and enters the water at a horizontal distance of 5 m from the end of the board. If the total time that the diver remains in the air is

    asked by Anonymous
  130. Poetry

    Can anyone tell me what kind of poem is "A Barred Owl"? Ex. is it a villanelle or a sonnet...? Thank you!!

    asked by Jen
  131. 7th grade science

    Can you help me with genetics questions? Directions: In each set, tell which word does not fit with the others. Then explain why you think it does not. You must mention all words. 1. Aa, Heterozygous, Hybrid, Homozygous Ans: Homozygous doesn't belong

    asked by Alexis
  132. calculus

    lim x->0 (Sin^3 3x - 3x^3)/(x^3) (x^4)

    asked by Francis
  133. algebra

    Help!! I am a home-school mom who did horrible in Honors Algebra2. My daughter has done her work and I am stumped on two questions. Simplify. 6/x-6+3x/x+5-1/(x-6)(x+5) A) 3x+5/x^2-x-30 B) 3x^2-12x+29/x^2-x-30 C) 3x^2+6x+5/x^2-x-30 D) 3x^2+5/x-6 Simplify

    asked by Kristine
  134. Math

    1. Sara got 10 out of 13 questions right on a test. What will she probably make on her test? A. 76% B.60% C.70% D.85% 2. What will Sara make if she got a 5 extra points? Idk how to answer number 2.. I think it's.. A for number 2

    asked by Anonymous
  135. Science

    Which explains how plants can chemically weather a rock? A. Plant roots get into cracks and secrete water, which freezes and breaks apart the rocks. B. Plant roots get into cracks, grow, and break apart the rocks. C. Plant roots get into cracks and secrete

    asked by Anonymous
  136. 2nd grade math

    take a shape with 4 sides. draw a line between two vertices that do not share a side. how many shapes does that make? how many sides do they have

    asked by Mythreyee
  137. Math

    Solve the following systems of linear inequalities x+2y is less than or equal to 6 y is greater than -4x

    asked by M
  138. chemistry

    If 1500 mg of rubbing alcohol is spilled in abox that measures 4m x 2m x 3m, what is the concentration of alcohol in mg. per cubic meter if it evaporates into gas?

    asked by Leslie
  139. Math 20-1

    The length of a rectangle is 5 cm more than its width. What are the possible dimensions of the rectangle if the area must be at least 84 cm^2? (2 marks)

    asked by Alex
  140. physics

    A particular jet aircraft must reach a speed of 43 m/s in order to take-off. If the acceleration of the plane is 1329 m/s2, the minimum length of the runway is Answermeters

    asked by diana
  141. chemistry 116

    What is the specific heat capacity of aluminum if a 8.4 g sample increased 21.1 C upon the addition of 159.0 J? The units are J/(g ·K). q=cpxMxT is the equation my answer i got is 401.65 is that right bec i feel that's wrong

    asked by danny
  142. math

    Three pupils John, Daniel and David contributed a total of $400 for a party. John contributed $30 more than Daniel while, David contributed three times as much as John. If David contributed $x, which one of the equations below can be used to find David's

    asked by kudu
  143. Chemistry

    Which of the following is a balanced chemical equation H2O2 → H2O + O2 2 Fe2O3 + 3 C → 4Fe + 3CO2 SO2 + O2 + 2H2O →4H2SO4 2 Mg + HCl →MgCl2 + H2 not sure

    asked by stacyy09
  144. Algebra

    Find the number of decibels for the power of the sound given. Round to the nearest decibel. A rocket engine, 2.32 cross product 10−5 watts/cm2

    asked by LI
  145. Math

    Tension wants to build a soccer field for his team. The area of the field should be 125 square feet. The width is 1/5 of the length. What are the dimensions of the field?

    asked by Helen
  146. Math

    What's the difference between one solution and infinitely many solutions?

    asked by Humanoid
  147. English

    What is the difference between symbol and symbolism?

    asked by Anonymous
  148. algebra

    Graph the equation y = 4 x + 8. How do you solve For y and x so I can graph the equation?

    asked by Ruth
  149. Physical science

    Which property of aluminium makes it suitable to be used for overhead electricity cables

    asked by Rossy
  150. math

    Two station astronauts will each perform three 8-hour EVAs within 13 days to repair a damaged solar panel that was impacted by a micrometeoroid on the space station. What is the total amount of oxygen needed by the two astronauts to accomplish this? Please

    asked by math
  151. Physics

    By trial and error, a frog learns that it can leap a maximum horizontal distance of 1.26 m. If, in the course of an hour, the frog spends 27.5 % of the time resting and 72.5 % of the time performing identical jumps of that maximum length, in a straight

    asked by Brittany
  152. Math

    Using this graph, find the average lengths of cellular calls for the year 2013. Year:|Avg length (L) in minutes: 1999|2.38 2000|2.56 2001|2.74 2002|2.73 2003|2.87 2004|3.05 I think the answer is 4.08 minutes but I also got 3.97 so I'm not sure, can you

    asked by Alex
  153. Physics

    This deals with Projectile Motion and I would be glad if someone were to check if my answers are correct. 1. c 2. b 3. a 4. d If air resistance were to be ignored, 1.a projectile that has a horizontal velocity is a)zero b)constant c)increasing d)decreasing

    asked by Jenice
  154. Physics 201

    A person desires to reach a point that is 2.87 km from her present location and in a direction that is 47.5° north of east. However, she must travel along streets that are oriented either north-south or east-west. What is the minimum distance she could

    asked by Anonymous
  155. English close reading paper

    Is it appropriate to use the "we" form and "I" in the same paper?

    asked by Tom
  156. physics

    Using the following number: 26,802 In 4 significant figures, this number would be Answer. In 3 significant figures, this number would be Answer. In 2 significant figures, this number would be Answer. In 1 significant figure, this number would b

    asked by diana
  157. math

    'the accountant charged $23 for the hour of work and $23 for each for each hour after that . He earned a total of $127. How many hours did he work'

    asked by Anonymous
  158. Chemistry

    27.31 mg of NH4Cl in 1.99 ✕ 10-2 L of solution cation ? And Anion ? (Molarity) I found the MW to be 62.48 and I converted Mg to 0.02731g idk what's wrong

    asked by Asher

    How is this so far? and what else should i add, i need two pages and i have only one done, due today. help? I'm doing like a journalist. I Josephine A. Walker was a slave for Harry Richardson. Every morning I had to serve him, I had to be up by 4am and was

    asked by Christina
  160. Math

    Two equilateral triangles are sitting side-by-side. The length of one side of Triangle A is 5 ft. The sides of Triangle B are 3 times as long as those of Triangle A. How long is the length of one side of Triangle B?

    asked by Patricia
  161. Algebra

    Find the following sum: 9 + 10 + 11 + ... + 87

    asked by Shelby
  162. 2nd grade math

    Can all 4 sided figures be made from triangle? why?

    asked by Mythreyee
  163. college mathematics 1

    describe the graph of g(x)=f(x)+1 relitave to f(x)

    asked by chris
  164. media

    what is a trade publication? examples.

    asked by k.o
  165. English

    Hi! I made an essay please tell me what I am missed or how I did. And how can I improve it. Also does it sound good enough for a University student? btw I have a request if you can delete this essay after giving feedback because it's personal and private

    asked by Marie
  166. algebra

    Calculate: -2/3 -4

    asked by sika
  167. Physic

    What is the maximum height above ground a projectile of mass 0.67 kg, launched from ground level, can achieve if you are able to give it an initial speed of 78.5 m/s?

    asked by Anonymous
  168. Algebra

    Please solve using substitution method. 2n-11=m/4 n=m/-3

    asked by Emily
  169. science

    In the below the results are given for the saprate mating of tomato plant what are the most probable genotype for the parents in each instance? 1.purple, cut¡Ágreen cut- cut purple-321, potato purple-101, cut green-310, potato green-107 2.purple,

    asked by Anonymous
  170. physics

    You fire a cannon ball from ground level at a speed of 20.0 m/s ∠30.0 Find the time taken for the ball to hit the earth. How far will it land?

    asked by axel
  171. college algebra

    x represent the unknown value eight more than one-sixth of a number

    asked by Meche
  172. calculus

    (cx)={X if 0 is less than or equal x less than or equal 10 and 0.9x if 10

    asked by john
  173. Chemistry

    Elements are constantly forming compounds, and the atoms of compounds are constantly being rearranged to form new combinations of atoms. True or false True

    asked by stacyy09
  174. math

    four friends want to equally share 2 2/3 feet of rope.What amount of rope should each friend get?Draw a picture to solve

    asked by tiggres
  175. Math

    Show each step to show how to verify the identity. cos(x + y) + cos(x - y) = 2 cos x cos y

    asked by Toni
  176. chem

    What is the specific heat capacity of aluminum if a 8.4 g sample increased 21.1 C upon the addition of 159.0 J? The units are J/(g ·K). q=cpxMxT is the equation my answer i got is 401.65 is that right bec i feel that's wrong

    asked by danny
  177. maths contant

    determine the angle of inclination 3-2y=9x

    asked by Anonymous
  178. Math 20-1

    What is the solution for 2x^2-7x>-3? (2 marks) (Show your work)

    asked by Alex
  179. SS

    How is this so far? and what else should i add, i need two pages and i have only one done, due today. help? I Josephine A. Walker was a slave for Harry Richardson. Every morning I had to serve him, I had to be up by 4am and was unable to go to bed till

    asked by Christina
  180. math

    i have tryed this like ten times but cant get the answer can u help. 58,00 times 7.40% after u get the answer between the two multiply by 3

    asked by robert
  181. Calc II

    1) Find the point on the graph of y=x^2 where the cube has slope 5/2 2) Find the point on the graph of y=x^2 where the tangent line is parallel to the line -4x+3y=3

    asked by Vince
  182. math

    given thatvABCD is a parallelogram where A(1,2),B(4,4), and C(6,2) determine the coordinates of D using vector?

    asked by peter
  183. Math

    3{radical symbol48/3 - 2} how would i solve this problem

    asked by Anonymous