Questions Asked on
September 8, 2014

mechanics and fluids
a block of mass 6 kg resting on a horizontal surface is connected by a cord passing over a light, frictionless pulley to a hanging block of mass 4 kg. the coefficient of kinetic friction between the block and the horizontal surface is 0.5. after the block
asked by francis 
Physics
A boy jumps from rest, straight down from the top of a cliff. He falls halfway down to the water below in 0.620 s. How much time passes during his entire trip from the top down to the water? Ignore air resistance.
asked by Hoku 
government
Which statement BEST describes the philosophy of Sir Robert Filmer? A. Kings derive their power from the consent of their subjects. B. Kings have a divine right to absolute authority over their subjects. C. Government’s principle duty is to protect the
asked by sam 
math
Which property is shown by 2+0=2? A. Associative property of addition B. Commutative property of addition C. Distributive property D. Identity property of addition Is the answer B?
asked by gwen 
History
Which of the following tribes was particularly known for wanting more independence? A. Pawnee B. Sioux C. Osage D. Wichita
asked by Katt 
chemistry
The radius of a strontium atom is 215 pm. How many strontium atoms would have to be laid side by side to span a distance of 4.47 mm?
asked by Anonymous 
science
Three horizontal ropes pull on a large stone stuck in the ground, producing the vector forces and shown in the figure below. Find the magnitude and direction of a fourth force on the stone that will make the vector sum of the four forces zero. The
asked by Anonymous 
math
What units would you use to measure the length of a wall?
asked by Anonymous 
CHEMISTRY
lABEL THE VARIABLES IN THE EQUEATION BELOW WITH THE CORRECT UNIT RATE=k(A) UNITS: S1, M, M2 S1, M.S1, M.S, M1S1 WHAT IS RATE WHAT IS K WHAT IS A
asked by LENNON 
physics
A stone is thrown from the top of a building upward at an angle of 30.0∘to the horizontal and with an initial speed of 20.0 m/s. If the height of the building is 45.0 m, what is the speed in m/sec of the stone just before it strikes the ground ?
asked by Rachit agrawal 
math
write 2.18 as a mixed number in simplest form
asked by Anonymous 
math 2
explain how a venn diagram in this lesson shows that all integers and all whole numbers are rational numbers.
asked by STEFIE 
Chemistry
The standard free energy of activation of a reaction A is 73.4 kJ mol–1 (17.5 kcal mol–1) at 298 K. Reaction B is one million times faster than reaction A at the same temperature. The products of each reaction are 10.0 kJ mol–1 (2.39 kcal mol–1)
asked by Breauna 
Organic Chemistry
Rank the given compounds based on their relative Brønsted acidities. HCH3 HOH HCl HF HNH2
asked by Breauna 
Spanish: Check my Answers Please, Thank you!!
The question Answer choices what i know is incorrect what my answer is 1) ____________________ muchachas colombianas son bonitas. El, La, Los, Las Not La or El Los? 2) Ella ____________________ una alumna en el Colegio Martí. Soy, Eres, Es, Somos, Son Not
asked by Katt 
Biology
I have tried to look this up but can't find it... The basal metabolism rate can be measured by calculating the amounts of _______________ and ______________. (1 point) nitrogen and carbon dioxide nitrogen and oxygen oxygen and carbon dioxide  my guess
asked by Sandra 
chemistry
Express the rate of the reaction in terms of the change in concentration of each of the reactants and products. 2D(g)+3E(g)+F(g)>>>>2G(g) + H(g) when D is decreasing at 0.30 MOL/Ls, how fast is (H) increasing?
asked by andrew 
CHEMISTRY
LABLE THE VARIABLES IN THE EQUATION BELOW WITH THE CORRECT UNITS RATE=k(a)(b) UNITS M2S1, M, M.S1, M1S1, S1, M.S WHAT IS K WHAT IS A WHAT IS B
asked by LENNON 
math
Mario walks his dog once every 8 days in the park. Todd walks his dog once every 14 days. today, both Mario and Todd walked their dogs in the park. In how many more days will both boys walk their dogs in the park on the same day?
asked by Mario 
math
Determine the volume of a right trapezoidal cylinder whose bases are B = 13 m and b = 9 m, height is h = 5 m, and length is l = 19 m
asked by rajeh 
History
This society was matrilineal. Clan members could not marry each other because they were all blood related on the mother’s side of the family. Houses belonged to the oldest married woman in the family, and each household contained at least ten people.
asked by Katt 
Math  Very urgent.
Use prime factors to find the LCD for each pair of fractions. a) 1/4, 1/8 b)1/6, 1/18
asked by Sally 
Math
Convert this measurement to hundreth of a kilometre. 26 mi 385 yd. Could you please show formula on how you got this answer? I am stuck I keep getting the answer as 16 km but the answer is supposed to be 42.19 km Thank you
asked by Cherie 
Math
You have $9, one of your friends has $10, and two of your other friends each have $13. You combine your money to buy arcade tokens. You use a coupon to but 8 tokens for $1. The cost of the remaining token is four for $1. You and your friends share the
asked by Zero 
Math fractions
Nata spent $28 on 2 DVDs. At this rate, how much would 5 DVDs cost? At what rate did she spend her money?
asked by Alli 
Math
Shannon opens a savings account with $50. Each week after that she deposits $8 into her account. How many weeks does it take her to save $450? A. 56.25 weeks B. 62.5 weeks C. 52 weeks D. 50 weeks Is the answer A?
asked by Gwen 
chemistry
at a temperature of 5 celsius, 21.5 mg of a non electrolyte is dissolved in enough water to make a 150.0 ml solution. the osmotic pressure of the solution is 0.200 atm. what is the molar mass of the substance dissolved
asked by amelia 
ethics
According to John Arthur, a reasonable moral code would require us to: a. Give money to famine relief when there is no significant reduction in our own happiness, or the happiness of our family. b. Give food to our own children first, because they have a
asked by anna 
English 11
Not sure: Which of the following phrases best defines rhythm? (1 point) Repeated sounds across lines of poetry my answer a poem's cadence, pace, or ongoing momentum A collection of lines in a poem The regular of irregular rhyme scheme in a poem
asked by Sandra 
Chemistry
1.630 g of iron ore is dissolved in an acidic solution. This solution is titrated to a pink endpoint with 27.15 mL of a 0.020 M KMnO4 solution. a. How many moles of MnO4 ions were consumed? b. How many moles of Fe2+ were in the iron ore sample? c. What is
asked by Ray 
english
"Tonight I Can Write" 1. Read the following lines from "Tonight I Can Write." Write, for example, The night is starry and the stars are blue and shiver in the distance. The night wind revolves in the sky and sings. Which of the following words is used to
asked by stacey 
SCIENCE
A flask weights 46.8 g when it is empty and 121.6 g when filled with water. When the same flask is filled with another liquid, the mass is 91.2 g. What is the density of the second liquid?
asked by LISA 
Math
The density, d, of an object is given by the following formula, where m represents the mass of the object and V represents the volume of the object. Heather was asked to find the density of a brick given the mass in kilograms and the dimensions of the
asked by Josh 
math 1 question
Simplify the following expression: 5^2  4 / 5 +2 is it 3 or 26.2, i don't know which one, im confused.
asked by SkatingDJ 
Math
You borrow bookcases like the one shown to display 943 books at a book sale. You plan to put 22 books on each shelf. No books on top of the bookcases. A. How many bookcases must you borrow to display all the books? I got 8 book cases so far. B you fill the
asked by Zero 
science
Describe a fourth scenario in which either the Law of Conservation of Matter or the Law of Conservation of Energy could be observed. Using as many sentences as needed, describe how an experiment could be set up to further explore your recorded observation.
asked by LISA 
chemistry1411
calculate the boiling point of water if the atmospheric is 630 mm hg
asked by maryjohn 
math
Consider the following system of equations. y = 2x  2 y  2x = 7 What can you conclude about the system of equations? The system of equations is inconsistent. The system of equations is dependent. The system of equations is independent. none of these
asked by robert 
ethics
What are some ethical issues that a warden faces with the correctional officers and inmates
asked by joanna 
Science
Can one organism be a consumer, omnivore, predator and prey? Give an example that completely explains answer.
asked by Hayden 
Precalculus
The angle of depression From the top of a 75foot lighthouse to a ship out in the ocean is 40'. How far is the ship From the lighthous?
asked by Karen 
Chemistry
A reaction has a standard freeenergy change of –12.40 kJ mol–1 (–2.964 kcal mol–1). Calculate the equilibrium constant for the reaction at 25 °C.
asked by Breauna 
Math
Ernesto loses 14.5 pounds in 7 months. Now he weighs 156.5 pounds. Which equation can be used to find out how much he weighed before? A. x+14.5=156.5 B. x14.5=156.5 C. 7x+14.5=156.5 D. 7x14.5=156.5 Is the answer B?
asked by Gwen 
Geology
Question: A tectonic plate that is being subducted along much of its boundary tends to move _________ a tectonic plate that is not being subducted. a) slower than b) faster than c) the same rate as d) over
asked by lea 
ethics
According to James Shikwati, which of the following is a reason given in support of the conclusion that we must stop providing aid to underdeveloped nations? a. Development aid strengthens the local markets. b. Development aid encourages free trade. c.
asked by anna 
History
European exploration was inspired by popular books, including those written by __________. A.Sir John Mandeville and Marco Polo B.Marco Polo and Leif Ericson C.Bartolomeu Dias and Vasco da Gama D.Sir John Mandeville and Bartolomeu Dias Help please!!
asked by Katt 
statistics
At a local college, 81 of the male students are smokers and 729 are nonsmokers. Of the female students, 350 are smokers and 350 are nonsmokers. A male student and a female student from the college are randomly selected for a survey. What is the
asked by Tracey 
Physicsl Science
A cart on a linear track has a uniform acceleration of 0.172 m/s^2. What is the velocity of the cart 4.00 s after it is released from rest?
asked by Barbara 
math
Which set of numbers is ordered correctly from least to greatest? A. 0,3,[4],[5],8 B. 8,[5],[4],3,0 C. [4],3,0,[5],8 D, [5],[4],3,0,8 Is the answer A?
asked by gwen 
Calculus
"Three hundred books sell for $40 each, resulting in a revenue of $12,000. For each $5 increase in price, 25 fewer books are sold. Write revenue R as a function of the number x of $5 increases." How would you get this problem started?
asked by Lynn 
math
Identify the solution(s) of the system of equations, if any. x + 3y = 7 6x  9y = 6
asked by robert 
math
Which property is shown by 5x(6+7)=5x6+(5)x7? A. Commutative property of addition B. Identity property of addition C. Distributive property D. Associative property of addition Is the answer D?
asked by gwen 
Biology please help!
Is respiratory control more sensitive to small changes in arterial PO2 or in arterial PCO2
asked by Dan 
Chemistry
Name the property that each change depends on. Then classify the property as either chemical or physical. a) You separate a mixture of gravel and road salt by adding water to it b) Carbon dioxide gas freezes at a temperature of 78C
asked by Jill 
please help
Donna opens a certificate of deposit (CD) with $2,000. The bank offers a 3% interest rate. If the account compounds quarterly, which of the following equations represents the future value of the account, after 1 year?
asked by jeannie 
math
Belle had the choice of taking out a four year car loan at 8.5% simple interest or a Five year loan at 7.75% simple interest. If she borrows $15,000, how much interest would she pay for each loan? Which option requires less interest?
asked by Ali 
Physics
You serve a tennis ball from a height of 2.1 m above the ground. The ball leaves your racket with a speed of 19.2 m/s at an angle of 5.3° above the horizontal. The horizontal distance from the court's baseline to the net is 11.83 m, and the net is 1.07 m
asked by Derek 
Math Proof
Prove that square root of 12 is irrational. **I don't know if I did this correctly PF: By contrapositive, assume sqrt(12) is rational. Then there exist an a,b as integers such that a/b is written in the lowest terms, and sqrt(12)=a/b. Then by squaring both
asked by Ashley 
math proportions
What is 1000/x = 25/64
asked by brittney 
Physics
Calculate the average speed (in km/h)of Larry, who runs to the store 3.6 kilometers away in 40 minutes.
asked by Mia 
math 2
da marcus says the number 24/6 belongs only to the set of rational numbers. explain his error.
asked by STEFIE 
chem
the volume of a certain bacterial cell is 1.39um^3. what is its volume in mm^3? what is the volume of exactly 1e4 cells in liters
asked by jasmine 
Social Studies
In the Mid1800's, grasslands covered the Great Plains in the United States. would this be Location, Place Or Movement? I am thinking Location
asked by Mia 
math
In class 5 /7 of the class is girls are there more girls then boys?
asked by damiya 
Social Studies
The Great Lakes form a part of the border between the United States and Canada. I think this would be Place not Location
asked by Mia 
algerbra
Which set of points are on the line y = 6x  1? {(0, 1), (29, 5)} {(0, 1), (5, 29)} {(1, 0), (29, 5)} {(1, 0), (5, 29)}
asked by robert 
English
i need a summary of the book
asked by Anonymous 
algebra
43 Pictures are taken and ther is 32,680kilobytes of memory still available ,how many more pictures can they take ?
asked by ray 
statistics
It is time to go shopping for new clothes for school! You have found a catalog for new clothes. You decide that you will buy ve di erent shirts, four di erent pants, two di erent jackets, and three di erent shorts. The catalog has twelve di erent types of
asked by Linda 
Geometry
Given that R is between S and T, find each missing measure. RS=6, TR=4.5, TS=?
asked by Melanie 
please help urgent
Which of the following is the best estimate of the correlation coefficient for the data shown below? (1, 18), (2, 12), (3, 20), (4, 16), (5, 22), (6, 30), (7, 28), (8, 40), (9, 34), (10, 29), (11, 33), (12, 39), (13, 44), (14, 39), (15, 28) A 0.1 B. 0.3 C.
asked by jeannie 
Math
What is the parent function for h from h(x) = 4x?
asked by Anonymous 
pharmacy
How much clindamycin powder is in 3% Clindagel 30 g?
asked by cham 
speech
What is a good title for an anti abortion speech?
asked by May Ann 
math
Order of Magnitude (I'm not quite understanding it) 1) trying to 0.0000000734 estimated as the product with a single digit power of 10.*No multiple choice* 2) Trying to find the numbers that a greater than 7 x 10^4 (Choose more than one answer type
asked by Anonymous 
CORRECTIONAL PRACTICE AND POLICY
It is __________ privatesector correctional providers, especially of prison facilities, are more effective than publicsector providers. A. doubtful that B. untrue that C. unknown at this time whether D. true that I think it's B Or A
asked by Sonoko 
Math
What is a rational number
asked by Coleson 
Speech
I have all my information on my speech about abortion i just don't have an opening can anyone help?
asked by May Ann 
Science
Does more humidity make plants grow faster?
asked by Anonymous 
statistics
The average oneway commute time for a random sample of 256 area residents of a city is 90 minutes, with a standard deviation of 24 minutes. Construct a 90% confidence interval for the mean commute time of all residents. Construct a 98% confidence interval
asked by tee jay 
physic
a car travels east at 89 km/h for 1 hour.it then travels 26 east of north at 141 km/h for another 1 hour. a)what is the average speed for the trip? b)what is the average velocity for the trip?
asked by siti 
physics
In our country and in most of other countries ,the Celsius scale is more commonly used . Can you think of a reason for this?
asked by sandra 
Science
Would the climate/weather count as the physical geography of a region?
asked by Anonymous 
chemistry
The specific heat of a certain type of metal is 0.128 J/(g·°C). What is the final temperature if 305 J of heat is added to 57.2 g of this metal initially at 20.0 °C?
asked by Nashiram 
math
In a triangle ABC a:b:c =4:5:6 then 3A+B=?
asked by akansha 
4th grade math
128,955 . Round each number to the place of the underllined digit. 8 is the underlined digit
asked by K 
ethics
Which of the following is the analogy employed by Peter Singer in his argument contained in Famine, Affluence, and Morality? a. The drowning child. b. The starving child. c. The sleeping child. d. The comatose child.
asked by anna 
economics
what are the consequences of providing welfare and subsidies in South Africa?
asked by Jillian 
PreCalculus/Trigonometry
Help me please, just explain. How would I find f(1)? f(1)= x; 3, 2, 1, 0, 1, 2 f(x); 3.4, 0, 1.2, 0.4, 1.3, 1.7
asked by Haila 
math
Rainfall for September in Fiji averages 11" according to World Travel Guide. This year it rained 3% less. How many inches did it rain this year? (Round to the nearest tenth.)
asked by Tracy 
Biology  very urgent
Is respiratory control more sensitive to small changes in arterial PO2 or in arterial PCO2?
asked by Rachel 
Math 4th grade
9,924 9 is the underline digit round each digit... I think it's 10,000
asked by L 
math
Consider the equations:f(x)=6x1 and g(x)=4x^2 Select the solution for .(fg)(x)
asked by hpe 
jnv belpada
a shell going vertically breaks into 2 equal parts when its speed is 53.9 m/s. one piece rises to afurther height of 122.5m .then the other piece rises to height
asked by ranjan 
math
How much clindamycin powder is in 3% Clindagel 30 g?
asked by cham 
math
Determine the surface area of a right circular cylinder shown below whose radius r is 7 feet and height h is 21 feet. Use π = 3.14. Round off your answer to two decimal places.
asked by rajeh 
algebra
The length of a rectangle is twice the width more than five. If the perimeter is 46 cm, what is the length of each side?
asked by hope cress 
Calculus
Determine the exact values of the six trigonometric functions of the angle.(5,2)
asked by Ashley 
ethics
According to James Shikwati, the most effective course of action that America and Europe can engage in to help Africa is: a. Earmark funds for a specific objective. b. Halt all development aid. c. Encourage aid organizations to employ Africans. d. None of
asked by anna 
math
Russell planted a flower bed that is 1.6 square meters. Jackie planted a flower bed that is 16 tenths square meters. Draw a quick picture to model the two areas
asked by syl 
please check see if im correct
A cereal manufacturer claims to include 18.7 ounces of cereal in each box, with a standard deviation of 0.2 ounces. A random sample of 25 boxes shows an average of 18.5 ounces. Which of the following statements is correct? A. The claim is likely untrue,
asked by Angie 
Physics
An object starts from rest an under a constant acceleration has traveled a displacement of 30.5 meters when it reaches a certain final velocity. The same object starts from rest, but has an acceleration which is a factor of 3.3 times smaller than the
asked by Sam 
social studies
Climate change studies suggest the worst impacts will be felt by the wealthiest people. T or F
asked by Jackie Botton 
ethics
mmanuel Kant argues that we have _______moral duties to animals. a. No. b. Direct. c. Indirect. d. Innumera
asked by anna 
Spanish 2
Please answer the following question positively, Se ponen sombreros los turistas cuando van a la playa?
asked by Marianne 
ethics please help
Which of the following claims does Michael Pollan advance? a. Eating animal meat is never ethical. b. Eating animal meat is sometimes ethical. c. Animal liberation is a fringe idea. d. Animals do not possess a "characteristic form of life."
asked by anna 
science
It takes stu, a slimy slug, 20 minutes to travel from his favorite bush to the local trach can (a trip of 30 meters), how far can he travel in 1 hour (60 minutes)?
asked by Anonymous 
ethics please help
Advocates of animal rights claim that it is ________ to discriminate against animals merely because they are not human. a. Racist. b. Speciesist. c. Trivial. d. Moral.
asked by anna 
maths
what are real numbers
asked by Evans 
ethics please help
Which one of the following philosophers believes that animals do not feel pain because they do not possess souls? a. Descartes. b. Pollan. c. Pollan. d. Leopold.
asked by anna 
MODERN HISTORY/WORLD
Here is my ANSWER for the first part of the question .please tell me what do you think of it? did i do it correctly? question: 1. As industry spread, the British government initiated reforms to improve workers’ lives. What motivated reforms in Britain?
asked by Rachael Maggie 
Chemistry
Ca(OH)2 + SO2 > CaSO3 + H2O Assuming that this process is only 80 % efficient, how much Ca(OH)2 would be required to remove 1000 grams of SO2?
asked by Anonymous 
Physics
You have three balls, one is thrown upward at 30m/s, on is dropped, and one is thrown toward the ground at 20m/s. what is the acceleration of the dropped ball? Vf=0m/s + (10m/s^2)(1) =0m/s 10m?s^2 = 10m/s a= 10m/s * 0 /1 = 0 am i on the right
asked by Keisha H 
SS
Could an example of relative location be that my apartment is an 8minute drive away from the community center?
asked by Anonymous 
ethics please help
According to Kant, we have no direct duties to animals because they lack personal attributes such as___________. a. Rationality. b. Selfconsciousness. c. Free will. d. All of the above.
asked by anna 
economics (7)
An electronics company advertises that the battery life of its new smart phone with normal usage averages 72 hours. The company says this is one of the desirable characteristics of the phone which makes the phone a better choice compared to competitor
asked by miguel 
economics 6
Annual per capita consumption of milk is 21.6 gallons (Statistical Abstract of the United States: 2006). Being from the Midwest, you believe milk consumption is higher there and wish to support your opinion. A sample of 16 individuals from the mid western
asked by miguel 
ethics please help
Peter Singer argues that giving money to famine relief is: a. Morally permissible. b. Morally forbidden. c. Morally required. d. Supererogatory.
asked by anna 
English
Should "street" be capitalized in this sentence? I live on 109th street.
asked by Anonymous 
Astronomy
Venus is 0.72 AU from the Sun and Neptune is 30.06 AU from the Sun. Both have similar orbital eccentricities, 0.7 and 1.0 respectively. Predict how long it will take Venus to make one revolution around the sun compared to Neptune. Also predict the orbital
asked by Dena 
english
2. In “Tonight I Can Write,” the poet personifies each of the following except (1 point) the sky. the heart. the soul. the voice
asked by stacey 
Math
What benchmark would you use to estimate the number of people that can ride on a bus?
asked by Lauren 
geometry
If two lines are perpendicular, then the two lines form right angles. If lines Imported Asset and Imported Asset are perpendicular, then they form right angles. If two lines are perpendicular, then the two lines form right angles. Therefore, since lines
asked by Anonymous 
Physics
Vector A has a magnitude of 13.0 units and points due west. Vector B points due north. (a) what is the magnitude of B if A+B has a magnitude of 16.8 units? (b) What is the direction of A+B relative to due west? (c) What is the magnitude of B if AB has a
asked by Sarah 
math
Al's Rental's charges $25 per hour to rent a sailboard and a wet suit. Wendy's rentals charges $20 per hour plus $15 for a wet suit. Find the number of hours for which the total charges for both companies would be the same.
asked by peyton 
physics
A blue ball is thrown upward with an initial speed of 22.8 m/s, from a height of 0.8 meters above the ground. 2.8 seconds after the blue ball is thrown, a red ball is thrown down with an initial speed of 10.9 m/s from a height of 29.3 meters above the
asked by jerry 
Physics
A wind is blowing with a speed of 50 mph is a direction 40 degrees west of north. What is the westerly component of the wind's velocity? What is the northerly component of this velocity?
asked by Samuel 
Math
There are 18 students in the classroom. There ate 2 students in each group. How many groups of students are there?
asked by Raquel 
Math
A media company divides 1 million copies of a new music CD into 100 equal groups before sipping the CD to 100 stores .how many CDs is the company shippi ng to each store? Please help me , i don't know the answer. Write the value of the underlined digit.
asked by Nnn 
Science!
Which of the following is not a process of a stream load? A. Suspension B. Bed Load C. Materials in solution D. Divide Im thinking D but also C?
asked by Morgan 
AP CAlc. AB Please helppp!!
f(x)=x+1 Let A(r) be the enclosed by the x axis, the line x=2, the graph of the function f, and the line x=r for any r=>2 A) Write A(r) as a piecewise function with its joints at r=0 Please walk me through each step i am really confused!!
asked by Lily 
English Check
In the discussion, answer the question: Which of the following characters served as the antagonist in "The Cold Equations"? •Barton •Marilyn •Commander Delhart •Records •Gerry Use evidence from the text in the form of examples and explanations to
asked by School Lover 
Math
1. What is the sale price of a music CD that is sold in a retail store for 25% off of the original price of $16? A. $4 B. $12 C. $16 D. $13 My answer is A. 2. What is the percentage markup on the cost of a drill bit set if the cost is $75 and the set is
asked by Meghan 
SS
Does being close to a water body increase humidity?
asked by Anonymous 
math
How is the sentence "9 less than x is 1" written as an equation? A. 9x=1 B. x9=1 C. x9=1 D. x1=9 Is the answer B?
asked by gwen 
Calculus
Suppose the area under the curve y=xe^(mx) from 0 to 1 is 0.4. Find m.
asked by Ryan 
math
a drop of water is 0.00005 liter. write this number in scientific notation.
asked by Anonymous 
Biology
Is respiratory control more sensitive to small changes in arterial PO2 or in arterial PCO2?
asked by Rachel 
phycis
59. A simple lever is used to lift a heavy load. When a 60N force pushes one end of the lever down 1.2 m, the load rises 0.2 m. Show that the weight of the load is 360 N.
asked by denise 
P.E
The way in which your emotions affect your physical and overall health is part of? A. setting goals B. heredity C. the mindbody connection. D. your cultural environment. I think its c
asked by chris 
To Matt
What did you decide on for #10? 10. Which word is not derived from the Latin verb meaning "to place"? A. compound B. exposition C. extraneous D. imposter
asked by Writeacher 
Physics
A helicopter is ascending vertically with a speed of 5.66m/s. At a height of 106m above the Earth, a package is dropped from the helicopter. How much time does it take the package the package to reach the ground? (Ignore air resistance) I would like to
asked by Taylor 
science
Two im not sure on, please check? What is the true work of all scientists? Scientists ask testable questions and devise ways to answer those questions through experimentation or observation.*** Scientists research other scientists' discoveries and present
asked by SkatingDJ 
phyhics
Show that 480 W of power is expended by a weightlifter when lifting a 60kg barbell a vertical distance of 1.2 m in a time interval of 1.5 s.
asked by denise 
Physical Science 8th grade
A balloon filled with air does not rise as a balloon filled with helium. What does this tell you about the density of helium? A. Helium is more dense than air B. Helium is less dense than air C. The two gases have the same density D. When heated, helium
asked by Brittany 
English
If you are a nonsmoker what are some biases you can have towards a smoker?
asked by Kelly 
P.E
in order to make healthy choice, you must learn to_________risks. A. ignore B. advocate for C. evaluate D. take more. i think its B
asked by chris 
SS
Would getting tap water from a water body be an example of humanenv. interaction?
asked by Anonymous 
math
What is the function rule for input x 1,2,3,4,5,6 and output 0,1,3,6,10,15? Thanks
asked by Tony 
algerbra
Identify the solution(s) of the system of equations, if any. 4x  4y = 4 12y = 12x  12 no solution (0, 1) (1, 0) infinitely many solutions
asked by robert 
Science
Does Earth rotate or orbit each day?
asked by Max 
WOLRD GEOGRAPHY
9. Australian vegetation is dominated by various species of acacia and A. cacti. B. marsupials. C. ores. D. eucalyptus. Student Answer: B Answer: Incorrect Reference: 10. According to the World Health Organization (WHO), AIDS is listed as the _______ main
asked by SARAH 
P.E
in order to make healthy choice, you must learn to_________risks. A. ignore B. advocate for C. evaluate D. take more. i think A
asked by chris H 
MATH
what is th lomgest multiplication combination you found for each of these numbers
asked by KEVIN 
physics
Two point charges 0.600 m apart experience a repulsive force of 0.400 N. The sum of the two charges equals 1.00*10^5 C. Find the values of the two charges.
asked by Anonymous 
P.E
which of these items is not an example of culture? A. Family trations B. Foods you eat C. holiday celbrations D. an action plan I think its C
asked by chris H 
algebra
how need help with this question subtract 7y^2 3y from 4y^2 + 2y isthe answer 3y^2  5y thank you
asked by kevin 
Biochemistry
If you make up a solution of 100mL of 0.1 M Hepes in the basic form, what will be the pH? pKa = 7.55
asked by Megan 
algebra plz check answer
How many real zeros does y = 3x 4  2x 2 + x  3 have? A. 5 B. 4 C. 3 D. 2 my answer is d
asked by Angie 
math
How is the sentence '4 more than q is 4" written as a equation? A. 44+q=0 B. q=4+(4) C. q+4=4 D. q4=4 Is the answer C?
asked by gwen 
math
if 4x³ + 8x²  x  2 = 0 then the value of (2x + 3) is given by
asked by Nithin 
math
the rational root of the equation 2x³  x²  4x + 2 = 0 is
asked by Nithin 
math
Identify the solution(s) of the system of equations, if any. 6x + 4y = 0 y = 3  3x
asked by robert 
Math  Urgent
I'm sorry I need 1 more question to be asked. Use the LCD to write equivalent fractions. 5/6 , 2/9
asked by Sally 
Hi, spanish help available?
Hi, so I need some help in spanish, but I need it soon because I am about to have to go. Anyways, if there isn't someone who can help with spanish available, I can try and find another site, no harm done. Well, if you can thanks, and if you can't, thanks
asked by Katt 
math
Prepare 180 g of Lotrimin 0.05% cream. In stock, you have 200 g each of Lotrimin 0.025% cream and Lotrimin 0.1% cream
asked by ski 
math  please help
f(x)=2x; 1(is less than or equal to) x (less than or equal to) 5 Find the domain of the function.
asked by Kimmie 
algerbra
Identify the solution(s) of the system of equations, if any. 6x + 4y = 0 y = 3  3x (–3, –2) (–3, 2) (–2, –3) (2, –3)
asked by robert 
World History
I have two questions: What does Semitic mean and Who are the Semitic people? Thank you!
asked by H.A. 
math
You can sell 170 pet chias per week if they are marked at $1 each, but only 160 each week if they are marked at $2/chia. Your chia supplier is prepared to sell you 80 chias each week if they are marked at $1/chia, and 170 each week if they are marked at $2
asked by Anonymous 
rela
you will develop a project that communicates to people something about your world. i don't mean planet earth i mean the circumstances in which you find yourself on a daily basis your project should include information about many different parts of your
asked by reina 
physics
if a electricity genreter move with the speed of 60km/h how much electricity they generate in 1 minute in volt
asked by rahul 
Biology Help
Enzymes: a. increase the amount of energy release in a reaction b. decrease the amount of energy release in a reaction c. catalyze only redox reactions d. reduce the activation energy needed to for a reaction I think its d. or a. Help Please
asked by Stephine 
math
Evaluate. 8 • [5 + (18 – 7)] ÷ 4
asked by mona 
social studies
How did the Protestant Reformation in Europe influence the settlement of North America? A. European settlers of different religions choose to establish new colonies in order to spread their faith and practice their beliefs. B. religious thinker John Calvin
asked by Daisy 
math
There are 40 students. 16 students missed class. What % of students attended class
asked by brittney 
Math7
You download 12 new songs to ur MP3 player then u delete 5 old songs write each amount as an integer
asked by Ana 
chemistry
calculate the molality, molarity, and mole fraction of NH3 in an 12.80 mass % aqueous solution (d=0.9651 g/ml)
asked by maria 
chemistry
What mass of cesium bromine must be added to a 0.500 liter of water (d=1.00 g/ml) to produce a 0.981m solution? what are the mole fraction and mass percent of CsBr?
asked by sabrina 
Chemistry 2
Pure nitrosyl bromide, NOBr at 0.762 M is placed into a sealed vessel and heated up to 400 K. When the system reaches equilibrium, it is found that 65.1% of the nitrosyl bromide has decomposed to nitrogen monoxide and bromine. Determine Kc for this
asked by Matt 
chemistry
Archeologists can determine the age of artifacts made of wood or bone by measuring the amount of the radioactive slope 14C present in the object. The amount of isolope decreases in a firstordrr process. If 12.8% of the original amount of 14C is present in
asked by esme 
math
Simplify. (6x)2
asked by robert 
Algebra two
An empty 5gal water jug weighs 0.75lb. With 3c of water inside, the jug weighs 2.25lb. Predict the weight of the jug with 5c of water inside
asked by Lesley 
physics
A ball is tossed with enough speed straight up so that it is in the air several seconds. Assume upward direction is positive and downward is negative.What is the acceleration of the ball during any of these time intervals? What is the acceleration of the
asked by Mia 
economics
Annual per capita consumption of milk is 21.6 gallons (Statistical Abstract of the United States: 2006). Being from the Midwest, you believe milk consumption is higher there and wish to support your opinion. A sample of 16 individuals from the mid western
asked by miguel 
Math
297x^2  167x  100 Can someone help me find the roots of this
asked by Brian 
economics
An electronics company advertises that the battery life of its new smart phone with normal usage averages 72 hours. The company says this is one of the desirable characteristics of the phone which makes the phone a better choice compared to competitor
asked by miguel 
math problem solving
a warehouse has 46 truckloads of recycled plastic. they use 8 truckloads each day. when there are a fewer than 16 truckloads, more needs to be ordered. figure out how many truckloads will be left after 2 days.. after 3 days when will more need to be
asked by KellyLynn 
Algebra
Given f(x)=(x)/(x+1) Find.... (f(x+h)f(x))/h
asked by Anonymous 
statistics
A study was conducted in which the teachers were asked to rate students for a particular trait on a ten point scale. With the help of data given below find out whether significant difference exists in the rating of the students by the teachers. Teachers
asked by shimali 
Math
George has coins in his pocket. He has 7 more quarters than he has dimes. How many dimes does he have?
asked by Tori 
Math Proof
If c is rational, c does not = 0, and x is irrational, then cx and c+x are irrational.
asked by Ashley 
math
Identify the solution(s) of the system of equations, if any. 6x + 4y = 0 y = 3  3x (–3, –2) (–3, 2) (–2, –3) (2, –3)
asked by robert 
math
Which set of points are on the line y = 6x  1? {(0, 1), (29, 5)} {(0, 1), (5, 29)} {(1, 0), (29, 5)} {(1, 0), (5, 29)}
asked by robert 
English
Who is your hero? I need 10 people and I only need 2 more people to ask.
asked by Anonymous 
English
Not sure about this... In the play A Sad Vaudeville, The flagman tells the man it is not his job to ____ answer questions. my answer give directions. issue tickets. give advice.
asked by Sandra 
social studies
The nations of the Pacific Rim include Japan, Taiwam, Korea and China. Five Themes of Geography what would it be Location, Place, Interaction between people and enviroment. Movement or Region
asked by Mia 
criminal justice
How does a warden address ethical issues between the correctional officers and the inmates?
asked by Bryan 
Quick English check
The sentences below have transitive verbs so each verb has a direct object. Read each sentences and underline its direct object. (Underline the subject once, and double underline the action verb and circle the do. please correct me if I'm wrong! 1. He
asked by Anonymous 
statistics
Is 28.065 more or less than 28.506
asked by Anonymous 
English
Can someone please help me proof read my paper and help me to know where my errors are and how I can better this paper? Is this good for a descriptive essay? Is their something I should elaborate more or less on? Are my paragraphs ok or do I need to
asked by Sandy 
Urgent English help
The sentences below have transitive verbs so each verb has a direct object. Read each sentences and underline its direct object. (Underline the subject once, and double underline the action verb and circle the do.) *** Some may not have DO*** please
asked by Anonymous 
MATH HELP
a warehouse has 46 truckloads of recycled plastic. they use 8 truckloads each day. when there are a fewer than 16 truckloads, more needs to be ordered. figure out how many truckloads will be left after 2 days.. after 3 days when will more need to be
asked by Kelly 
programming
write a C++ program to read the data from a file and put in a 2d array. This data contains the details of each sales person records. After the details are read and inserted, now calculate the grand total of each sales person and find out the sales person
asked by koneru 
math
How many liters of a 2.5% bleach solution must be mixed with a 10% bleach solution to produce 600 ml of a 5% bleach solution?
asked by Ali 
arithmetic
Amy is building a house .the basement floor is at 15feet. the roof of the house is above the ground 25 feet. express the comparison of heights as an equality . explain the meaning of the inequality
asked by ray 
PHYSICS
A car moves around a 4.5 km circular track at a rate of 40.0 m/s. What is the magnitude of the force that keeps a 1000kg car in circular motion?
asked by DULCE ALERIA 
Math
What will be the total deduction for social security and Medicare taxes on Lily's next monthly paycheck of $3,260 if she has already earned $29,340 this year? Social security tax is 6.2% of wages up to $106,800. Medicare tax is 1.45% of all wages.
asked by Shai 
Math
in 1626 peter minuit purchase manhattan island for $24. Assuming an exponential rate of inflation of 6% per year, how much will manhattan be worth in 2013 ?
asked by Lall 
algebra
a boy ran a distance of 5.8 kilometres.how many metres did he run?what is the solution for this question?
asked by honey 
Physics
On a distant planet, a freely falling object has an acceleration of 17m/s2m/s^2 . Calculate the speed that an object dropped from rest on this planet acquires in 2.0ss .
asked by Mia 
physics
The position of a particle as it moves along the x axis is given by x = 15eƒ{2t m, where t is in s. What is the acceleration of the particle at t = 1.0 s? 4.
asked by Anonymous 
Bus
Please help! Which is not a component of basic public relations practice? counseling employee relations fundraising networking
asked by Jay 
Math
The exponential is Y= 800(2(^0.25x) rearrange the equation for x
asked by prash 
BUS
Please Help! 3. According to the text, today’s public relations firms offer all the following services EXCEPT: executive speech training. research and evaluation. advertising placement. events management. Question 4. 4. All of the following are examples
asked by Jay 
Calculus
How do I solve for the investment of 20,000 with an interest rate of 7.5 compounded annually for 10 years? This is what I have so far and I don't know if I'm using the right formula. n=10 and I=r=0.075 A=P(1+i)n =20,000(1+0.075)10 This is where I'm stuck
asked by Sheila 
Biology
Is respiratory control sensitive to small changes in arterial PO2 or in arterial PCO2?
asked by Greg 
statistics
there are 450 employee in an organization. using the method of random sampling numbers, select a sample of 20 employees
asked by Anonymous 
Biology
What happens to arterial PO2, PCO2, and H+ concentration during moderate excercise? How and why does this stimulate an increase in breathing rate?
asked by Krystal 
Math
A class is planning a party. A pizza restaurant cuts each pizza into 8 slices. There are 32 students. How many pizzas does the class need to order for each student to have a slice? Explain.
asked by Maribel 
Math  Very urgent.
Use multiples to find the LCD for each pair of fractions. a) 1/2, 1/3 b) 1/4, 1/5
asked by Sally 
Algebra
3x^2+5x=x^2 please help me solve for x.
asked by Melinda 
Statistics
Let's pretend the Work variable is normally distributed, with a mean/median/mode value of 22 and a standard deviation of 17. Based on these numbers, we can say that approximately 68 percent of SOC 390 students work between ______ and ______ hours per week.
asked by Chris 
Statistics
Let's pretend the Work variable is normally distributed, with a mean/median/mode value of 22 and a standard deviation of 17. Based on these numbers, we can say that approximately 50 percent of SOC 390 students work more than ____ hours per week (round
asked by Chris 
American History
The Whiskey Rebellion A. caused the formation of the Democratic Societies. B. unified northern merchants and southern farmers. C. led to the development of two distinct political groups. D. created a single party political system. C?
asked by John 
math
A) Use numerals to write a ten digit number using the following information:  digit 5 is in millions, thousands and ones place digit 7 is in hundred millions place digit 8 is in hundred thousand place digit 1 is in tens place digit 4 in in billions
asked by beni 
social studies
the mississppi river flows through the interior plains of the united states. Location Place Interaction between people and enviroment. Movement Region not sure what answer this would be
asked by Mia 
physics
Calculate the distance you will travel if you maintain an average speed of 12km/h for onehalf hour.
asked by Mia 
math check answers
1. If the price of a new digital media player is $249.99 and the cost to the store that sells it is $150, what is the markup of this electronic item? A. $100 B. $98.99 C. $99.99 D. $89.99 My answer C 2. What is the percentage markup of a digital media
asked by Meghan 
English
What is the thesis of the essay "A nonsmoker with a smoker" by Phillip Lopate?
asked by Shila 
algerbra
The temperature on one day in January for Phoenix, AZ, is 56 degrees Fahrenheit. On the same day in Barrow, AK, the temperature is 31 degrees Fahrenheit. What is the difference between these two temperatures?
asked by robert 
chemistry
You have a metal tank containing 74.0 moles of nitrogen gas at a pressure of 15.0 atm. If the pressure is measured at a temperature of 25.0 °C, then the volume of the tank must be ___ liters. (Round your answer to one decimal place and do not include
asked by Kala 
dynamics
example of every types of motion *translation *rotation *general plane motion
asked by aira 
math
the expression that is equivalent to 6(x  6).
asked by robert 
Math Proof
Prove: let alpha be a lower bound of a subset E of an ordered set S. If alpha exist in E, then alpha= infE(greatest lower bound of E). PF: Already have alpha is a lower bound of E. Let lambda be a different lower bound of E. If alpha precedes lambda, the
asked by Ashley 
math
A clothing store offers a 60% discount on all purchases. What is the discount in dollars (before tax) for an item originally costing $18.00 dollars?
asked by robert 
math 3
is it possible for a number to be a rational number that is not an integer but is a whole number? explain
asked by STEFIE 
physics
Assume a projectile is launched from ground height over a flat plane, at an angle of 50 degrees above the horizontal with an initial speed of 100 m/s. What is the initial velocity of the projectile parallel to the ground (in the x direction) and
asked by john 
physics
Calculate the acceleration of a ball that starts from rest, rolls down a ramp, and gains a speed of 24m/sm/s in 5.8 seconds.
asked by Mia 
living enviroment
write 8 ways you could apply science safety rules in your kitchen at home.
asked by tom 
History
So I was reviewing my online lecture for school, and I noticed something the teacher had said. The Plains Indians planted seeds in the Spring, hunted buffalo and small game in the summer, harvested crops and made sure there was a good food surplus for
asked by Katt 
world geography
Australian vegetation is dominated by various species of acacia and A. cacti. B. marsupials. C. ores. D. eucalyptus. Student Answer: B Answer: Incorrect Reference: 10. According to the World Health Organization (WHO), AIDS is listed as the _______ main
asked by jessica 
Chemistry help
I need help on these last three problems. do the following problems and express your answer in correct scientific notation. 1. (10x10^6)/(2x10^2) 2. (9x10^4)/(2x10^3) 3. (4x10^5)(7x10^3)/(1.4x10^6)
asked by Anonymous 
Math
17 0 4 33 11 24 Place the numbers from the list in the appropriate space in the second column and compute your score 1/4 point for each natural number 17, 33. Score:1/2 3 points for each odd integer 17,0,3,11. Score 12 1/2 point for each whole number
asked by Coleson 
calculus
Verify Clairaut's theorem for u=ln(x^(2)y^(2)).
asked by Shawn