Most popular questions and responses by Adam
1. Language Arts

wet with dew straggly branches slapped and scratched at my legs and hid uneven ground so that several times tumbling and sliding downward which type of conflict best characterizes the event in the passage? a character vs self b character vs nature c

asked on May 10, 2016

Page # D-74 How Would You Describe a Dead Skunk? A skunked skunk. no What kind of answers do you have for the ones you have correct? exstankt extinct

asked on December 17, 2006

page # D-76 What Relation Is a Doorstep to a Doormat? Both are stepped on. no You didn't put any parameters on this and I think its a great answer. How bout the relation being a stepson (steps on) I got astearther.... No wait it's A Step Farther eh....??

asked on December 17, 2006
4. math

china population is 1.33 billion and continues to grow at the same rate,how many years until the population reaches 1.5 billion people?

asked on May 18, 2017
5. math

A stick of length 1 is broken into two pieces of length Y and 1−Y respectively, where Y is uniformly distributed on [0,1] . Let R be the ratio of the length of the shorter to the length of the longer piece. Find the PDF fR(r) of R . Hint:. What is the

asked on August 4, 2019

what lines are foreshadowing I fear, too early: for my mind misgives Some consequence yet hanging in the stars Shall bitterly begin his fearful date With this night's revels and expire the term Of a despised life closed in my breast By some vile forfeit of

asked on December 15, 2011
7. phsycs

A person shouts in a canyon. 3 s later they hear the echo. How far away is the canyon wall from which the sound wave was reflected? how do i do this problem?

asked on July 19, 2012
8. math

Conditioned on the result of an unbiased coin flip, the random variables T1,T2,…,Tn are independent and identically distributed, each drawn from a common normal distribution with mean zero. If the result of the coin flip is Heads, this normal

asked on July 13, 2019
9. Physics

an adult 68 kg cheetah can accelerate from rest to 20.1 m/s (45 mph) in 2.0 s. Assuming constant acceleration, (a) find the net external force causing this acceleration. (b) where does the force come from? that is, what exerts the force on the cheetah?

asked on October 4, 2009

Elemental mercury was first discovered when a mercury oxide was decomposed with heat, forming mercury metal and oxygen gas. When a 0.204-g sample of the mercury oxide is heated, 0.189 g of mercury metal remains. a)what is mole ratio of mercury to oxygen in

asked on February 15, 2012
11. Chemistry

Pure phosgene gas (COCl2), .03mole, was placed in a 1.5 L container. It was heated to 800k, and at equilibrium the pressure of CO was found to be .497 atm. Calculate the equilibrium constant Kp for the reaction CO(g) + Cl2(g) = COCL2(g)

asked on April 25, 2010
12. Chemistry

An aqueous KNO3 solution is made using 72.5 grams of KNO3 diluted to a total solution volume of 2.00 liters. If the molarity of the solution is .359 M and the molality of the solution is .354, what is the mass percent of the solution?

asked on February 19, 2012
13. Chemistry

a) A sprinter must average 24.0 mi/h to win a 100-m dash in 9.30 s. What is his wavelength at this speed if his mass is 84.5 kg? b) For potassium metal, the work function W (the minimum energy needed to eject an electron from the metal surface) is 3.68 ×

asked on October 5, 2014
14. geography

Why is a federal system of government more complex than a unitary system? A. Power is divided into many levels. B. The people get to make laws for the country. C. Decisions are made by a group of people rather than one person. D. Laws are made for the

asked on August 28, 2019
15. chemistry

What is the molarity of a saline solution that contains 0.900 g NaCl (58.44 g/mol) dissolved in 100.0 ml of a solution?

asked on June 24, 2012
16. Physics

A skier goes down a slope inclined at 25 degrees. Her mass including equipment is 60.0kg. a. What is her acceleration if friction is negligible? b. What is her acceleration if friction is 45.0 N?

asked on October 23, 2010
17. Math

1. The random variables X and Y are distributed according to the joint PDF fX,Y(x,y) = {ax2,0,if 1≤x≤2 and 0≤y≤x,otherwise. Find the constant a. 2. Determine the marginal PDF fY(y) . (Your answer can be either numerical or an algebraic function of

asked on July 3, 2019
18. math

The value of 4x^3-x/(2x+1)(6x-3) when x=9999 If 7 men working 7 hrs a day for each of 7 days produce 7 units of work, then the units of work produced by 5 men working 5 hrs a day for each of 5 days is? Pls help***

asked on November 19, 2015
19. CALC

Use Newton's method to approximate a root of the equation x3+x+3=0 as follows. Let x1=–1 be the initial approximation. The second approximation x2 is _____? and the third approximation x3 is _____?

asked on May 29, 2010

Mrs. Scott decided that she would spend no more than \$120 to buy a jacket and a skirt.f the price of the jacket was \$20 more than 3 times the price of the skirt, find the highest possible price of the skirt. How to set up this

asked on October 27, 2011
21. math

Alice has two coins. The probability of Heads for the first coin is 1/4, and the probability of Heads for the second is 3/4. Other than this difference, the coins are indistinguishable. Alice chooses one of the coins at random and sends it to Bob. The

asked on July 14, 2019
22. Math

For traffic that flows on a highway, the headway is the average time between vehicles. On four-lane highways, the probability P (as a decimal) that the headway is at least t seconds when there are 500 vehicles per hour traveling one way is given is P =

asked on March 12, 2017
23. math

By your cell phone contract, you pay a monthly fee plus some money for each minute you use the phone during the month. In one month, you spent 200 minutes on the phone, and paid \$22.45. In another month, you spent 350 minutes on the phone, and paid \$29.65.

asked on September 30, 2016
24. Probability

Let X and Y be two normal random variables, with means 0 and 3 , respectively, and variances 1 and 16 , respectively. Find the following, using the standard normal table. Express your answers to an accuracy of 3 decimal places. 1. P(X>−1)= 2. P(X≤−2)

asked on July 3, 2019
25. Math

Evan type 72 pages of notes one day. He typed one half of the pages in the morning and one third of the pages in the afternoon. He type the rest of the pages in the evening. How many pages of notes that he typed in the morning and afternoon

asked on November 19, 2015
26. physics

Runner A is initially 6.0 km west of a flagpole and is running with a constant velocity of 7.8 km/h due east. Runner B is initially 4.2 km east of the flagpole and is running with a constant velocity of 7.6 km/h due west. What will be the distance of the

asked on August 29, 2016
27. math

in a relationship between variable called that changes in response to another variable? function input function independent variable dependent variable (my choice)

asked on September 5, 2019
28. English

Which of the following is an example of a narrative poem? A. The Bridegroom by Alexander Pushkin B. The Fish by Elizabeth Bishop C. Danny Deever by Rudyard Kipling D. All of the above

asked on July 6, 2016
29. Chemistry

The solubility product constant of Calcium hydroxide is 6.5 * 10^-6 . If 0.10 mo of sodium hydroxide is added to 1 L of 0.0001 M Ca(OH)2, what is the final concentration of the calcium ion? SHOW your work. Again, I have no idea where to start

asked on May 17, 2016
30. history

What did Simón Bolívar promise Alexandre Pétion in exchange for weapons and Haitian troops? A.to promote international trade with Haiti B.to end slavery in Venezuela C.to support Pétion’s bid for reelection in Haiti D.to invade the Dominican Republic

asked on January 20, 2018
31. Science

Caluculating Mass! You push yourself on a skateboard with a force of 30 N and accelerate at 0.5m/s 2. Find the mass of the skateboard if your mass is 58 kg.

asked on October 12, 2010
32. mathematics

true or false questions Help Please! 1. A person selecting a bank will consider how convenient it is, how safe it is, and how secure their return is. 2. Wills and estate planning services are available at the bank, but financial counseling is not. 3.

asked on January 26, 2010
33. Physics (As Level) 12 Grade

2) An aircraft lands on a runway at a speed of 40 meters per second (ms^-1) and brakes to a halt in a distance of 860m. Calculate a) The Braking time. B) The deceleration of the aircraft.

asked on January 30, 2013
34. CHEMISTRY

find the concentrations of H+, HCO3-, CO3 2- in a 0.025M in H2CO3 solutions

asked on February 22, 2016
35. physics

Suppose the stone is thrown at an angle of 30.0 degrees below the horizontal. If it strikes the ground 57.0 m away, find (a) the time of flight, (b) the initial speed, and (c) the speed and the angle of the velocity vector with respect to the horizontal

asked on October 14, 2015
36. math

If a bicycle wheel has traveled f/π feet after n complete revolutions, what is the length in feet of the diameter of the bicycle wheel? A. f/nπ^2 B. π^2/fn C. nf/π^2 D. nf/π^2 E. f/n

asked on August 15, 2014
37. algebra

Write the polynomial in standard form. Then name the polynomial based on its degree and number of terms. 2 – 11x^2 – 8x + 6x^2 A. –5x^2 – 8x + 2; quadratic trinomial B. –5x^2 – 8x; quadratic binomial C. –6x^2 – 8x – 2; cubic polynomial D.

asked on October 2, 2016
38. Physics

A 70 kg person stands on a 30 kg platform and pulls on a massless rope with a force of 400 N. The rope passes around a pulley attached to a support (roof), and then around a second pulley attached to the platform before being anchored to the support

asked on January 22, 2013
39. CHM

Some of the cyclohexane solvent vaporized during the temperature versus time measurement. Will this loss of cyclohexane result in its freezing point being recorded as too high, too low or unaffected? Explain. Please someone explain this to me I don't

asked on October 10, 2012
40. geography

One way in which the European Union encourages trade among countries is through the use of A. tariffs. B. a common currency. ******* (I think) C. export limits. D. military alliances.

asked on September 4, 2019
41. socials 9

. What was the Reign of Terror? If you asked Robespierre how he, a man once opposed to the death penalty, could then approve of the Reign of terror, what would he say? Write a short speech that Robespierre might have given to the committee of Public Safety

asked on April 21, 2010
42. Chemistry

A 45.0 g piece of copper wire is heated. And the temperature of the wire changes from 21.0 degrees C to 88.0 degrees C. The amount of heat absorbed is 280.6 cal. Find the specific heat of Copper. SHOW your work. Please help! I have no Idea where to start

asked on May 17, 2016
43. English 12

Which theme from Macbeth do these lines support? "This supernatural soliciting Cannot be ill, cannot be good. If ill, Why hath it given me earnest of success, Commencing in a truth?" A) Those without convictions are easily manipulated. B) Darkness is

asked on September 13, 2014
44. 3rd grade math

If you multiply me by 2, I become a number greater than 20 and less than 40. If you multiply me by 6, I end in 8 Multiply me by 4, I end in 2

asked on May 11, 2010
45. Chemistry 2

we make a solution of water and ethylene glycol c2h4(oh)2 which contains 24 g of the glycol for each 74 g of water. What is the boiling point of ethylene?

asked on October 11, 2016
46. math

A vendor bought 10 dozen eggs at the rate of Rs 22 per dozen. Six of the eggs were rotten. He sold the remaining eggs at the rate of Rs 2.50 per egg. Find his profit or loss. Ans-65 profit Pls help me

asked on November 19, 2015
47. math

A fair coin is flipped independently until the first Heads is observed. Let the random variable K be the number of tosses until the first Heads is observed plus 1. For example, if we see TTTHTH, then K=5 . For k=1,2,…,K , let Xk be a continuous random

asked on July 12, 2019
48. math

Sohini bought 400 eggs at Rs 8.40 a dozen. At what price per hundred must she sell them so as to earn a profit of 15 percent? Give me the solution of it. Urgent**

asked on November 18, 2015
49. math

Alice has two coins. The probability of Heads for the first coin is 1/4, and the probability of Heads for the second is 3/4. Other than this difference, the coins are indistinguishable. Alice chooses one of the coins at random and sends it to Bob. The

asked on July 15, 2019
50. Finance

A firm has forecasted sales of \$3,000 in April, \$4,500 in May and \$6,500 in June. All sales are on credit. 30% is collected the month of sale and the remainder the following month. What will be the balance in accounts receivable at the beginning of July

asked on March 21, 2011
51. college physics

A 55 kg engineer leaves her office on the 33rd floor of a skyscraper and takes an elevator to the 59th floor. Later she descends to street level. If the engineer takes her office as the zero for potential energy and if the distance from one floor to the

asked on May 14, 2010
52. Algebra 2

Suppose you did a survey of male shoes size and the mean of that survey was size 10 with a standard deviation of 1.5. What is the z-score of a size of 7.5?

asked on June 7, 2011
53. Physics

A basketball player who is 2.00 m tall is standing on the floor 8 m from the basket. If he shoots the ball at a 390 angle with the horizontal, what initial speed must he shoot the ball so that it goes through the hoop without striking the blackboard. The

asked on June 7, 2017
54. chemistry

1) Rank the elements, aluminum, sodium and phosphorus, in order of decreasing conductivity. 2) Rank the elements aluminum, gallium, and boron in order of decreasing conductivity

asked on November 15, 2009
55. geography

Which was an effect of the establishment of the European Union? Select the two correct answers. A. Member countries trade freely without trade barriers. B. Citizens can move among nation states to work and study. C. National borders have been erased. D.

asked on September 9, 2019
56. Chemistry

what volume of oxygen at 423.0K and a pressure of 127.4kPa will be produced by the decomposition of 129.7g barium peroxide to form barium oxide and oxygen gas? Thank you

asked on November 27, 2015
57. data

Given the following business scenario, create a Crow’s Foot ERD using a specialization hierarchy if appropriate. Tiny Hospital keeps information on patients and hospital rooms. The system assigns each patient a patient ID number. In addition, the

asked on May 8, 2015
58. math

Let X be a continuous random variable. We know that it takes values between 0 and 6 , but we do not know its distribution or its mean and variance, although we know that its variance is at most 4 . We are interested in estimating the mean of X , which we

asked on August 15, 2019
59. chemistry

How many isomers are there of the complex ion [CoCl2(en)(NH3)2]+

asked on November 20, 2009
60. Chemistry

For the following reaction, identify the substance oxidized, reduced and the oxidizing and reducing agents. 2SO2 + O2 ----> 2SO3

asked on October 30, 2013
61. Mathematics Ms Sue help

You want to estimate the height of the Empire State Building. You start at its base and walk 15 m away. Then you approximate the angle from the ground at that point to the top to be 88 degrees. How tall do you estimate the Empire State Building to be?

asked on May 20, 2013
62. Math

A box of cereal cost \$3.59 for 30 oz. Find the unit rate.

asked on November 3, 2011
63. college physics

A popular daredevil trick is to complete a vertical loop on a motorcycle. This trick is dangerous, however, because if the motorcycle does not travel with enough speed, the rider falls off the track before reaching the top of the loop. What is the minimum

asked on May 14, 2010
64. Physics

The center of a 1.10km diameter spherical pocket of oil is 1.10km beneath the Earth's surface. Estimate by what percentage directly above the pocket of oil would differ from the expected value of for a uniform Earth? Assume the density of oil is . Express

asked on April 5, 2010
65. Chemistry

A few drops of AgNO3 is added to a sample of the unknown. A white precipitate appears. Which ion is present?

asked on June 6, 2011
66. Physics

Runner 1 is standing still on a straight running track. Runner 2 passes him, running with a constant speed of 1.5 m/s. Just as runner 2 passes, runner 1 accelerates with a constant acceleration of 0.73 m/s^2. How far down the track does runner 1 catch up

asked on September 8, 2019
67. Organic chem

Classify each as a lewis acid or lewis base... A)H20 B)O2- C)Cu2+ D)SO3 E)AlCl3 Lewis acids are electron pair acceptors. Lewis bases are electron pair donors. Look at H2O, for example. .. H:O: .. H This molecule has no "holes" to accept an electron. Would

asked on October 15, 2010
68. Math 1324

A manufacturer produces two models of elliptical cross-training exercise machines. The times for assembling, finishing, and packaging model A are 3 hours, 3 hours, and 0.8 hour, respectively. The times for model B are 4 hours, 2.5 hours, and 0.4 hour. The

asked on May 10, 2016
69. college

A 3.2 kg block is hanging stationary from the end of a vertical spring that is attached to the ceiling and has an elastic potential energy of 1.8 J. What is the elastic potential energy of the system when the 3.2 kg block is replaced by a 5.0 kg block?

asked on May 9, 2010
70. Physics

A proton is at the origin and an electron is at the point x = 0.37 nm, y = 0.39 nm Find the electric force on the proton? I don't even know where to start. Can someone help me?

asked on August 13, 2009
71. algebra 1

A theater group is having a carwash fundraiser.The group can only spend \$34 on soap, which is enough to wash 40 cars. Each car is charged \$5. If c represents the total number of cars washed and p represents the profit, which equation shows the relationship

asked on September 9, 2019
72. math

A defective coin minting machine produces coins whose probability of Heads is a random variable Q with PDF fQ(q)={5*q^4 if q∈[0,1] A coin produced by this machine is tossed repeatedly, with successive tosses assumed to be independent. Let A be the event

asked on July 13, 2019
73. Math

A bowl has red,green and blue marbles.There are 95 red marbles.the nuber of blue marbles is 5 timesthe number of green mables altogether red and green marbles are 189 less then blue marbles .how may marbles are there in total

asked on May 6, 2016
74. chemistry question

What mass of propane (C3H8) is needed to produce 346 g carbon dioxide in the following reaction? C3H8(g) + 5O2(g) -> 3CO2(g) + 4H2O(g) A. 346 g C3H8 B. 115 g C3H8 C. 5075 g C3H8 D. 1.86 g C3H8

asked on August 15, 2013
75. Organic Chem

Classify each as a lewis acid or lewis base... A)H20 B)O2- C)Cu2+ D)SO3 E)AlCl3

asked on October 15, 2010
76. Physics 11th Grade

A foam ball of a mass of 0.150 g carries a charge of -2.00 nC. The ball is in a uniform electric field, and is suspended against the force of gravity. What are the magnitude and direction of the electric field?

asked on April 15, 2010
77. math

A fair coin is flipped independently until the first Heads is observed. Let the random variable K be the number of tosses until the first Heads is observed plus 1. For example, if we see TTTHTH, then K=5 . For k=1,2,…,K , let Xk be a continuous random

asked on July 12, 2019
78. Chemistry

You need to prepare 100.0 mL of a pH=4.00 buffer solution using 0.100 M benzoic acid (pKa = 4.20) and 0.180 M sodium benzoate How much of each solution should be mixed to prepare this buffer?

asked on August 13, 2013
79. Physics

A sled rope is held at an angle of 45 degrees with the horizontal ground. A force of 60 N acting parallel to the ground is required to keep the sled in motion. How much force must be exerted on the rope?

asked on March 5, 2013
80. geography

Which describes a constitutional monarchy? A. a monarchy in which a king or queen has all the power B. a monarchy in which the people elect the king or queen*** C. a representative government with a mostly ceremonial ruler D. a representative government

asked on September 6, 2019
81. Physical Science

What element has 6 valence electrons and 6 energy levels?

asked on July 23, 2019
82. Chem

Express the concentration of a 0.0700 M aqueous solution of fluoride, F-, in mass percentage and in part per million. Assume the density of the solution is 1.00 g/mL.

asked on September 4, 2015

A small circular object with mass m and radius r has a moment of inertia given by I = cmr2. The object rolls without slipping along the track shown in the figure. The track ends with a ramp of height R = 3.0 m that launches the object vertically. The

asked on March 29, 2012
84. US History

2. Explain how trusts, pools, holding companies, and communities of interest work to reduce competition and to introduce 'economies of scale.'

asked on January 9, 2014
85. math

A movie store sells DVDs for \$11 each. What is the cost C of n DVDs? Identify the situation as discrete or continuous. a. C=11n;continuous*** b. C=11+n;discrete c. C=11+n;continuous d. C=11n;discrete

asked on September 5, 2019
86. physics

A wooden box, with a mass of 22 kg, is pulled at a constant speed with a rope that makes an angle of 25° with the wooden floor. What is the tension in the rope?

asked on December 6, 2016

1. The UV index on a sunny day can be modelled by the function y= -0.15(x-13)^2+7.6 , where x represents the time of day on a 24-h clock and f(x) represents the UV index. At what time(s) was the UV index 7? 2. Determine if each system has one, two, or no

asked on June 18, 2015
88. History

With which statement would BOTH FDR and Reagan agree? A. Government must protect freedom of speech. B. Government must resolve inequality of wealth. C. Government must hold businesses accountable. D. It is government’s role to resolve social problems.

asked on September 30, 2015
89. Trig

Suppose you would like to cross a 200-foot wide river in a boat. Assume that the boat can travel 35 mph relative to the water and that the current is flowing west at the rate of 5 mph. What bearing should be chosen so that the boat will land at a point

asked on November 18, 2012
90. Physics

Peggy drives from Cornwall to Atkins Glen in 52 min. Cornwall is 75 km from Illium in a direction 26° west of south. Atkins Glen is 27.1 km from Illium in a direction 16° south of west. Use Illium as your origin. (a) Draw the initial and final position

asked on May 20, 2012
91. CALC

A rancher wants to fence in an area of 1500000 square feet in a rectangular field and then divide it in half with a fence down the middle parallel to one side. What is the shortest length of fence that the rancher can use?

asked on May 29, 2010
92. Calc

If a ball is thrown vertically upward from the roof of 48 foot building with a velocity of 32 ft/sec, its height after t seconds is s(t)=48+32t–16t2. What is the maximum height the ball reaches?

asked on April 18, 2010
93. finance

You were hired as a consultant to Giambono Company, whose target capital structure is 40% debt, 15% preferred, and 45% common equity. The after-tax cost of debt is 6.00%, the cost of preferred is 7.50%, and the cost of retained earnings is 12.75%. The firm

asked on April 2, 2011
94. physics

A boulder with a mass of 2,500 kg on a ledge 200 m above the ground falls. If the boulder's mechanical energy is conserved, what is the speed of the boulder just before it hits the ground?

asked on November 9, 2010
95. physics

How far would you have to drill into the Earth, to reach a point where your weight is reduced by 8.0 ? Approximate the Earth as a uniform sphere.

asked on April 15, 2010
96. Physics

In outer space, a constat net force of magnitude 140 N is exerted on a 32.5 kg probe initially at rest. (a) what acceleration does thie force produce? (b) how far does the probe travel in 10.0 s?

asked on October 4, 2009
97. Algebra

the time t required to drive a certain distance varies inversely with the speed, r. If it takes 4 hours to drive the distance at 35 miles per hour, how long will it take to drive the same distance at 45 miles per hour? about 3.11 hours 140 hours about 5.14

asked on May 27, 2018
98. Math

Suppose that the height (in centimeters) of a candle is a linear function of the amount of time (in hours) it has been burning. After 11 hours of burning, a candle has a height of 18.6 centimeters. After 27 hours of burning, its height is 12.2 centimeters.

asked on February 5, 2011
99. Algebra II

A geyser sends a blast of boiling water high into the air. During the eruption, the height (h) (in feet) of the water (t)seconds after being forced out from the ground could be modeled by h = -16t*t + 70t. My question is how do you find the initial

asked on March 12, 2008
100. Math

Confused on this 8log8(19)=

asked on September 27, 2015