Popular questions and responses by E
  1. English

    The relative pronoun "that" is used with an essential clause and the relative pronoun "which" is used with a nonessential clause. In three to five sentences, explain when to use each pronoun and the difference between the two relative clauses. (2 points)

    asked on September 15, 2020
  2. Physics

    A particle of mass m, initially at rest at x = 0, is accelerated by a force that increases in time as F=Ct^2. a) Determine its velocity v as a function of time. b) Determine its position x as a function of time. Express your answers in terms of the given

    asked on October 10, 2019
  3. Physics

    The position of a particular particle as a function of time is given by r = ( 9.60ti + 8.85j - 1.00t^2 k)m, where t is in seconds. a) Determine the particle's velocity as a function of time. b) Determine the particle's acceleration as a function of time.

    asked on October 3, 2019
  4. math

    Mr. Flores opened an account with a deposit of $5,000 The account earned annual simple interest. He did not make any additional deposits or withdrawals. At the end of 4 years, the balance of the account was $6,500. What is the annual interest rate on this

    asked on April 5, 2019
  5. science

    Which of the following demonstrates the central dogma of molecular biologists?(1 point) DNA and RNA mutate into either harmful or helpful effects on the human body. DNA and RNA hold the code to create proteins that are the key to gene expression. Gene

    asked on September 9, 2020
  6. Science

    In a drawing that represents a scale model of the solar system, the sun is placed at the center and the planets are shown orbiting in circles around it. While in reality Mars is 1.5 AU away from the sun, in the model Mars appears at 30 cm from it. Neptune

    asked on September 10, 2020
  7. trig

    Observers at P and Q are located on the side of a hill that is inclined 32° to the horizontal, as shown. The observer at P determines the angle of elevation to a hot-air balloon to be 56°. At the same instant the observer at Q measures the angle of

    asked on December 5, 2019
  8. Chemistry

    What is the bond enthalpy of N2(g)+2H2(g) --> N2H4(g)?

    asked on October 27, 2015
  9. SS

    Early West African kingdoms grew wealthy by exporting what resource?

    asked on August 14, 2019
  10. algebra

    Suppose that y varies directly with x, and y=10 when x=5. What direct variation equation relates x and y? What is the value of y when x=2? A. y=2x; 4 B. y= 1/2x; 1 C. y=-2x; -4 D. y= 1/10x; 1/5

    asked on January 15, 2019
  11. Calculus-Math

    Delta Cephei is one of the most visible stars in the night sky. Its brightness has periods of 5.4 days, the average brightness is 4.0 and its brightness varies by plus-or-minus 0.35. Find a formula that models the brightness, b, of Delta Cephei as a

    asked on September 22, 2017
  12. math

    How do I rename as a fraction and decimal: 55 5/9%?

    asked on September 16, 2008
  13. Algebra

    Which set of ordered pairs represents a function? A {(22, 5), (23, 10), (22, 7), (23, 5)} B {(22, 5), (26, 10), (23, 7), (23, 5)} C {(22, 10), (23, 10), (24, 7), (25, 5)} D {(24, 10), (23, 6), (22, 7), (24, 5)}

    asked on March 28, 2019
  14. Fourth grade math

    (1) Courtney has 36 photos to arrange on a gallery walk. Part A How many arrays can Courtney make with the 36 photos? List all the possible arrays. Part B How many factors are there for 36? Write them. What do you notice about the number of factors of 36

    asked on January 20, 2016
  15. C programming

    Question: Write a program that reads integers from the keyboard until the user enters the sentinel value -999. The program should then print the minimum integer read, the maximum integer read and the average of all the integers. (Excluding the sentinel

    asked on October 2, 2010
  16. Physics

    A 28.0 kg block is connected to an empty 2.10 kg bucket by a cord running over a frictionless pulley. The coefficient of static friction between the table and the block is 0.44 and the coefficient of kinetic friction between the table and the block is

    asked on October 22, 2019
  17. Physics

    A couch with a mass of 100 kg is placed on an adjustable ramp connected to a truck. When one end of the ramp is raised, the couch begins to move downward. If the couch slides down the ramp with an acceleration of .7 meters per second when the ramps angle

    asked on November 19, 2012
  18. Physics

    A force vector points at an angle of 43.4 ° above the +x axis. It has a y component of +133 newtons (N). Find (a) the magnitude and (b) the x component of the force vector

    asked on September 3, 2020
  19. Physics

    The same voltage is applied between the plates of two different capacitors. When used with capacitor A, this voltage causes the capacitor to store 17 μC of charge and 5.7 x 10^-5 J of energy. When used with capacitor B, which has a capacitance of 6.9 μF,

    asked on February 21, 2015
  20. Chemistry

    How much heat is necessary to change a 52.0 g sample of water at 33.0 C into steam at 110.0 C?

    asked on February 12, 2013
  21. physics

    A certain car can accelerate from rest to the speed v in time T seconds. (a) If the power output of the car remains constant, how long does it take for the car to accelerate from v to 3v, in terms of T? (b) How fast is the car moving 9T after starting, in

    asked on October 17, 2012
  22. Math

    Find the missing coefficient. (5d-7)(5d-6)=25d^2+__d+42 A.65 B.5 C.-5 D.-65

    asked on February 25, 2020
  23. science

    According to Newton's Second Law of Motion, in which of these situation is the object accelerating. A) A book on a shelf B) A rock hitting the ground C) a helium balloon tied to a lamp post D) a ball that has been thrown upward

    asked on May 13, 2019
  24. Algebra

    The cone shown has a height of 5 inches and a radius of 1.5 inches. What is the approximate volume of the cone? A. Between 11 and 12 cubic inches B. Between 15 and 16 cubic inches C. Between 35 and 36 cubic inches D. Between 39 and 40 cubic inches From

    asked on March 1, 2019
  25. statistics

    As a manager for an advertising company, you must plan a campaign designed to increase Twitter usage. A recent survey suggests that 85% of adults know what Twitter is. How many adults should you survey in order to be 90% confident that your estimate is

    asked on November 13, 2016
  26. Algebra

    Two trains are 450 miles apart, and are traveling toward each other at the same time. They meet 6 hrs later. The speed of the first train is 25 mph faster than that of the second train. What is the speed of each train?

    asked on November 30, 2015
  27. physics

    a child holds a sled at rest on a frictionless snow covered hill. if the sled weighs 77newtons. find the force exerted on the rope by the child and the force on the rope exerted by the sled by the hill?

    asked on August 30, 2013
  28. History

    Why did the expansion of the Gupta Empire create a golden age in india?

    asked on November 22, 2017
  29. history

    Concerning the land bridge theory, which of the following statements are true? Select all that apply. A. It is a native American theory B. it is a scientific theory C. It tells the story of coyote, the trickster D. It offers an explanation of how

    asked on March 18, 2020
  30. Calculus

    The rate of change of the population of a small town is dP/dt=kP Where P is the population, t is the time in years and k is the growth rate. If P=20000 when t=3 and P=30000 when t=5, what is the population when t=10? Round your answer to the nearest

    asked on December 4, 2015
  31. math algebra

    a diver dives from a cliff .when her centre of gravity is 46 ft above the surface of the water. her initial vertical velocity leaving the water is 9 ft per second. after how many secs does she hit the water? solve

    asked on March 7, 2013
  32. english

    In A tale of Two Cities how does Dickens depict Jarvis Lorry as emotionally imprisoned?

    asked on October 22, 2008
  33. math

    similar polygons are .... different shapes. A. always B. sometimes C. never *** someone help me please

    asked on March 17, 2020
  34. science

    explain how our circulatory system completes the work of our digestive and respioratory system

    asked on October 30, 2018
  35. statistics

    The mean rent of a 3-bedroom apartment in Orlando is $1200. You randomly select 12 apartments around town. The rents are normally distributed with a standard deviation of $75. What is the probability that the mean rent is more than $1000?

    asked on November 13, 2016
  36. Fourth grade math - math book PearsonRealize

    Homework 6-3 (1) Kareem has 216 role-playing game cards. His goal is to collect all 15 sets of cards. There are 72 cards in a set. How many more cards dose Kareem need to reach his goal? (2) Nichole has $9 to spend on cards. She finds friends with the same

    asked on January 25, 2016
  37. algebra

    A submarine kept a constant rate of ascent upon rising after a dive. After 5 minutes it was 360 feet below the surface of the water, and after 25 minutes it was 140 feet below. How long after starting its ascent was the submarine 250 feet below the

    asked on June 16, 2013
  38. biology

    In rabbits, there are four different versions of the gene for coat color. What pattern of inheritance is this?

    asked on May 24, 2012
  39. math

    joshua is raising fruit flies for science project at the begining of the first day he had 4fruit flies his fruit flies double in number each day how many fruit flies does he have at the end of three days

    asked on September 23, 2010
  40. Geometry

    If BC = 2x + 1, CD = 3x - 4 and BD = 22, find the value of x. b. Using the value of x, find BC and CD

    asked on June 27, 2010
  41. college physics

    A 215 g sample of a substance is heated to 330 degrees C and then plunged into a 105 g aluminum calorimeter cup containing 165 g of water and a 17 g glass thermometer at 12.5 degrees C. The final temp is 35.0 degrees C. What is the specific heat of the

    asked on May 6, 2010
  42. com150

    Read the following sentences, and focus on the grammar area specified in the left column. Then, complete Appendix H by selecting the correct sentence (a or b) for each number and providing an explanation of why you made that choice.

    asked on September 26, 2008
  43. math

    Joe's mother had 1/3 of an apple pie left. Joe cut the remaining pie into 4 equal pieces and ate one piece. What fraction of the whole pie did that one piece equal?

    asked on May 4, 2020
  44. History

    What message did the Rosenberg Trial send to many Americans? A) No one was safe from communism. B) The Soviets had the upper hand in the Cold War. C) All immigrants were under suspicion of communism. D) There might be other Soviet spies in the United

    asked on April 10, 2020
  45. Algebra 1

    What is the factored form of k^2+kf-2f A. (k-2)(k+f) B. (k+2f)(k-!@#$%^&+2f)(k+f) D. (k-2)(k-f) I have no idea because I used my calculator and it said it is not factorable so I’m confused

    asked on March 2, 2020
  46. English

    What are some examples of parallel syntax in the novel, "In Cold Blood"? I can't seem to find any. Any help would be appreciated, thanks!

    asked on February 25, 2020
  47. Civics

    Which role is a president filling by appointing an attorney general?

    asked on February 19, 2020
  48. math

    A baker mixes 2 1/4 pounds of sugar for every 3/8 pound of butter to begin making frosting. The baker uses 357 pounds of butter and sugar to start the frosting. How much sugar does the baker use?

    asked on February 4, 2020
  49. World history

    Sorry ik its alot Why did the policy of isolationism no longer work for new American leaders? 2. Why did Mahan suggest establishing a network of bases to support the expanding navy? 3. What were the economic reasons for expanding American territory? 4.

    asked on October 17, 2019
  50. English

    Which of the following is and example of jeopardy help idk

    asked on October 11, 2019
  51. Physics

    Salmon often jump waterfalls to reach their breeding grounds. Starting downstream, 3.34 m away from a waterfall 0.634 m in height, at what minimum speed must a salmon jumping at an angle of 26.7 ◦ leave the water to continue upstream? The acceleration

    asked on October 10, 2019
  52. English

    Hello, I am doing a project on JFK’s Inaugural speech. I have to find the components of SOAPSTone, and also exigence. I am having a hard time finding the exigence of this speech. Any help with this would be appreciated!

    asked on October 2, 2019
  53. English

    Which word best defines the word diminish? One would think his anxiety would diminish, not increase, once his name was called. Need help please

    asked on May 23, 2019
  54. social studies

    After the civil war the Freedman's Bureau was primarily used by the Radical Republicans in congress as a way to- a) train the freedmen to take positions as workers in northern factories b) help freed slaves by providing them with food, clothing, and

    asked on May 7, 2019
  55. social studies

    "When Andrew Johnson took upon himself the duties of his high office he swore to obey the Constitution and take care that the laws be faithfully executed. The, indeed, is and has always been the chief duty of the President of the United States. The duties

    asked on May 5, 2019
  56. Science

    A certain type of laser emits light that has a frequency of 4.0 × 1014 Hz. The light, however, occurs as a series of short pulses, each lasting for a time of 2.3 × 10-11 s. (a) How many wavelengths are there in one pulse? (b) The light enters a pool of

    asked on April 30, 2019
  57. Algebra

    The back-to-back stem-and-leaf plot below shows the ages of patients seen by two doctors in a family clinic in one day. Compare the ages of the patients of doctor 1 and doctor 2 using the mean and the median of each data set. Doctor 1 Doctor 2 | 3 | 5 9 2

    asked on March 29, 2019
  58. Anatomy and Physiology

    I have a science project on Dystonia. I have to explain how Dystonia changes normal muscle function, but I can't seem to find anything online. Any help with this question is greatly appreciated!

    asked on February 18, 2019
  59. Science

    Food passes from the crop of the bird into what organ where digestion begins to cure as the muscular walls of this organ contract. Gizzard? Proventriculus?

    asked on September 25, 2018
  60. Math

    Can someone check a few answers for me? Thank you. 1. Simplify. (-14x^3) / (x^3) - (5x^4) = -14/1-5x Where x is not equal to 1/5, 0 2. Simplify. x - 2 / (x^2) + (4x) - 12 = 1/x+6 Where x is not equal to -6

    asked on May 21, 2018
  61. History

    I'm writing an essay based on the question "to what extent did world war 2 shape the identity of Canada" I wrote the introductory paragraph (down below) but I was just wondering if someone could proofread it and let me know if there was anything else I

    asked on April 10, 2017
  62. finance

    the company offered you a 5000 bonus, which you may receive today or 100 shares of the companys stock which has a current stock price of 50 per share

    asked on December 20, 2016
  63. Math

    ella took a biology test of 54 question. She got 5/6 with a question correct how many questions did she get wrong on her biology test?

    asked on November 18, 2016
  64. Math check

    2. 184x210 round 200x200 = 40,000 3. 77x412 -) 80x400=32,000

    asked on November 15, 2016
  65. Algebra

    It says "there are x students trying out for a solo in a chorus concert. Only 6 will be chosen. How many students will not be chosen?"

    asked on November 15, 2016
  66. statistics

    Assume that men have IQ scores that are normally distributed with a mean of 99 and a standard deviation of 13. Find the IQ score that separated the lower 30% of the others. Round up to the nearest integer.

    asked on November 13, 2016
  67. chemistry

    What is the wavelength of radiation whose frequency is 5.93 x 10^14 s-1

    asked on October 25, 2016
  68. MATH

    I am new to this site. I am not sure if my last post went thru, with my calculations for review, so I will copy and paste my entire query. Thanks for your assistance. === Additional questions: this is for a form I need to fill out regarding my medications.

    asked on September 6, 2016
  69. Math

    Additional questions: this is for a form I need to fill out regarding my medications. Help please and thank you. If a bottle of 300 pills cost $17.40 … and you take 2 pills a day … - How much is the cost per pill? - How much is the cost per week? - How

    asked on September 4, 2016
  70. Math

    If a bottle of 300 pills cost $17.40 … and you take 2 pills a day … - How much is the cost per pill? - How much is the cost per week? - How much is the cost per month?

    asked on September 4, 2016
  71. math

    A rope is 25 1/2m long .how many pieces each of 1 1/2m long can be from it?

    asked on July 7, 2016
  72. Math

    need help!!!!!!

    asked on May 31, 2016
  73. Math fourth grade

    Dose all prime number have 2 factors

    asked on January 18, 2016
  74. Fourth grade math

    Is 1 pirme or composte

    asked on January 18, 2016
  75. math

    85 is 40% of what number

    asked on December 25, 2015
  76. math

    Two towns that are 52.5 km apart are 5 cm apart on a map. What is the scale of the map?

    asked on December 22, 2015
  77. math

    Los Angeles is about 385 miles from San Francisco. How far apart would the cities be on a map with a scale of 1 in. = 25 mi. ?

    asked on December 22, 2015
  78. math

    in the scale drawing, each side is .38cm long. What is the perimeter of the actual object?

    asked on December 22, 2015
  79. math

    a 12 foot basketball hoop has a shadow 9.6ft long.How long is the shadow of a 6ft adult standing next to the basketball hoop?

    asked on December 22, 2015
  80. calculus

    The population of a culture of bacteria, P(t), where t is time in days, is growing at a rate that is proportional to the population itself and the growth rate is 0.3. The initial population is 40. (1) What is the population after 30 days? (2) How long does

    asked on December 4, 2015
  81. Calculus

    A company needs to make a cylindrical can that can hold precisely 1.5 liters of liquid. If the entire can is to be made out of the same material, find the dimensions (radius and height) of the can that will minimize the cost. Round your answer to the

    asked on November 5, 2015
  82. Calculus

    A box with a square base and no top is to be built with a volume of 4000 in3. Find the dimensions of the box (Length, Width, Height) that requires the least amount of material. How much material is required at the minimum?

    asked on November 4, 2015
  83. Vocabulary

    What dose instinct mean and photosynthesis , adaptation , and territory mean

    asked on October 21, 2015
  84. Trigonometry

    A golfer hits a ball off of the ground with an angle of elevation of 10 degrees and an initial velocity of 240 feet per second. There is an 80 foot tree 160 yards in front of her. Will she hit the ball over the tree?

    asked on April 4, 2015
  85. Physics

    Two identical capacitors store different amounts of energy: capacitor A stores 2.5 x 10^-3 J, and capacitor B stores 4.8 x 10^-4 J. The voltage across the plates of capacitor B is 12 V. Find the voltage across the plates of capacitor A.

    asked on February 21, 2015
  86. Physics

    What is the capacitance of a capacitor that stores 5.2 μC of charge on its plates when a voltage of 4.8 V is applied between them?

    asked on February 21, 2015
  87. English

    Love-Charm Song (Ojibway) I can make That man bashful I wonder What can be the matter That he is so bashful. Song of a Maiden Disappointed in Love (Blackfoot) My lover looked like an eagle from a distance, But alas! When he came nearer I saw that he was

    asked on January 23, 2015
  88. English

    I have misplaced my answers to Word Within the Word #6 Analogies. If someone knows the answers so that I do not have to redo the analogies, please post them here.

    asked on January 14, 2015
  89. Calculus III

    Find the moment of inertia about a diameter of s spherical shell of uniform density, D, bounded by two concentric spheres of radii a and b, where a

    asked on August 4, 2014
  90. statistics

    howdo i find the square root of -2

    asked on February 6, 2014
  91. Statistics

    In a large collection of real SMS text messages from particular cellphone users, 13.40% of messages are identified as spam. Of all spam messages 17.0% contain both the word "free" and the word "text" ("txt") For example, "Congrats!! You have been selected

    asked on November 5, 2013
  92. science

    urgent- A 2200kg truck accelerates at 15m/s2(squared). What is the net force on the truck? What is the acceleration of the truck?

    asked on October 28, 2013
  93. augusta state

    What is the final concentration of d at equilibrium if the initial concentrations are a = 1.00 and b = 2.00 ?

    asked on March 2, 2013
  94. Chemistry

    How much heat is necessary to change a 52.0 g sample of water at 33.0 C into steam at 110.0 C?

    asked on February 12, 2013
  95. physics

    An 800 N gorilla swings from vine to vine. As the gorilla grabs a new vine, both vines form an angle of 30o with the vertical. What is the net force on each vine?

    asked on October 10, 2012
  96. Math

    How do factor a binomial with cubed roots? cos^3+sin^3/cosx+sinx = 1-sinxcosx

    asked on March 8, 2012
  97. Math

    what is the unpaid balance at the end of the 10th year on a 30 year loan on 250000 loan

    asked on May 7, 2011
  98. Chemistry

    1. A cylinder of Xenon has a volume of 750. ml. At 25.0°C the cylinder has a pressure of 655 torr. How much Argon is present in the cylinder? a. 240. moles b. 0.0264 moles c. .315 moles d. 26.5 moles 2.If a 25 liter cylinder of gaseous ammonia at

    asked on March 4, 2011
  99. Chemistry

    Why is it desirable in the method of back-titration to have a considerable amount(more than 10mL) of acid added in excess?

    asked on February 27, 2011
  100. chemistry

    A 25 mL solution of .5M NaOH is titrated until neutralization into a 50mL sample of HCl. What was the concentration of HCl?

    asked on February 22, 2011


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