Questions Asked on
March 5, 2016

Chemistry
When perturbing the equilibrium with heating and cooling, how many times do you think the equilibrium can be shifted before it stops working? Why? How about modification of the equilibrium through changes in concentration?
asked by Anonymous 
English
I want some of you to come up here and talk about your/their worries to your classmates. The other students should give some tips on the problems/worries/matters. Then they/you should add the expression "Everything will be okay." After that the student who
asked by rfvv 
calculus
a) Let f(z) = z^2 and γ(t) = 1 + it^3, t ∈ [0,1]. i) Write out the contour integral ∫γ f(z)dz as an integral with respect to t. You do not need to evaluate this integral. ii) Evaluate the integral ∫0,1+i z^2dz iii) What is the relationship between
asked by jack 
algebra or algebra1
What is the set of all values of x for which the expression x + 6 /x2 −2x−8 is not deﬁned? A) {−6,−4,2} B) {−6,−2,4} C) {−4,2} D) {−2,4} E) {−6}
asked by amy 
algebra or algebra1
A rectangle has length 21 inches and width 16 inches. What is the length of a diagonal from one corner to the opposite corner, rounded to the nearest inch
asked by amy 
algebra or algebra1
If f (x) = 2x + 9, and f(a) = 7, then a =?
asked by amy 
Physics
A 55.3 kg skier is moving at 14.9 m/s on a frictionless horizontal, snow covered plateau when she encounters a rough patch 1.7 m long. The coefficient of kinetic friction between this patch and her skis is 0.27. After crossing the rough patch, what is the
asked by Desperate Student 
Physics
A soccer ball of mass 550g is at rest on the ground. The soccer ball is kicked with a force of 108N. The player shoes is in contact with the ball for 0.3m. What is KE of the ball? What is the ball's velocity at the moment it loses contact with the soccer
asked by Sam 
Physics
An elastic cord can be stretched to its elastic limit by a load of 2N. If a 35cm length of the cord is extende 0.6cm by a force of the cord when the stretching force is 2.5N
asked by Cryptic 
algebra or algebra1
x−8/7=yt/5 solve for x
asked by amy 
Science
What is the charge on 500 mg of electron?
asked by Shahkar 
chemistry
In the red cabbage lab, we just took the cabbage juice and in 5 separate cups mixed it with 5 different liquids, ex: coke, milk, cleaning agent, etc, and matched the color to a ph chart to tell if it was a base or an acid. Simple lab. The question needs a
asked by lulu 
algebra or algebra1
If x and y are positive numbers, then (20)(x^3y^4)^3
asked by amy 
algebra or algebra1
If x and y are positive numbers, then√20(x^3y^4)^3
asked by amy 
physics
calculate the debroglie wvelenth of the electron orbitting in the n=2 of hydrogen atom
asked by sajid 
parabola
Architechture A modern building has an entry in the shape 24.2.ft wide at the base. Find an equation for the parabola case (see the figure) if the vertex is put at the origin of the coordinate sytem. Height is 32.5 ft.
asked by erwin 
English
I¡¯m worried about my height. 1. Why don¡¯t you buy a jump rope and jump rope from time to time? 2. Why don¡¯t you play basketball with others in the gym? 3. Why don¡¯t you do gymnastics on a regular basis? 4. Why don¡¯t you do yoga at home? 5.
asked by rfvv 
chemistry
Calcium carbonate, CaCO3, when heated decomposes to calcium oxide and carbon dioxide. Calculate the mass of calcium oxide formed when 2.0 grams of CaCO3 is decomposed.
asked by Unknown 
trigonometry
A plane flew 50 km on a bearing 63° 20', and then flew on a bearing of 153°20' for 120 km. Find the distance between the starting and ending point.
asked by ymme 
Algebra
find the 12th term of the arithmetic progression 1/2, 1/6, 1/10
asked by cici 
Algebra
The first and second term of a progression are "a" and "b" respectively. What is the third term if the progression is harmonic?
asked by cici 
Allgebra
The geometric and arithmetic mean of the two numbers are 8 and 17 respectively. 1. Find the bigger number. 2. Find the smaller number. 3. Find the harmonic mean.
asked by cici 
chemistry12
Calcium carbonate, CaCO3, when heated decomposes to calcium oxide and carbon dioxide. Calulate the mass of clacium oxide formed when 2.0 grams of CaCO3 is decomposed.
asked by Anonymous666 
chemistry12_2016
Calcium carbonate, CaCO3, when heated decomposes to calcium oxide and carbon dioxide. Calulate the mass of clacium oxide formed when 2.0 grams of CaCO3 is decomposed.
asked by Anonymous666 
Math
If a pie was cut into sixths and one cut into eighths how many pieces are there altogether?
asked by Scott 
vrije universiteit
Harley Davidson has its engine assembly plant in Milwaukee and its motorcycle assembly plant in Pennsylvania. Engines are transported between the two plants using trucks. Each truck trip costs $1,800. The motorcycle plant assembles and sells 3200
asked by emal 
maths
Q Two samples of sizes 8 and 10 are drawn from two normally distributed population having variance 20 and 36 respectively. Find the probability that the variance of the first sample is more than twice the variance of the second sample.
asked by ashok yadav 
English
My shoes are the same as yours. ================ What is the part of speech of 'same' in the sentence? Is 'same' an adjective or an pronoun?
asked by rfvv 
english
provide the correct singular /plural form of the verbs in brackets in the below . sandra (do).......not believe in the new year resolution.she (think) ......we (need)....... new day resolution instead .sandraa (have).....had many failed attempts to live up
asked by job 
Life orientation
3 corses or study fields you are interested in following after grade 12
asked by William 
Math
Two numbers are in the ratio of 3 to 4. If the smaller number is increased by 10 and the bigger number is decreased by 10, the results are equal. Find the numbers?
asked by Anonymous 
MATH
The moon's distance from the earth is 360000 km and its diameter subtends an angle of 31 minute at the of the observer on the earth . Find the radius of the moon.
asked by Pankaj 
maths
Akalya bought two pumpkins. the larger was 3 kg. the smaller pumpkin was only onethird the weight of the larger pumpkin. what is the weight of the smaller pumpkin
asked by ellya 
college algebra
there are three consecutive even integers such that twice the first is 20 more than the second. find the largest integer
asked by ashley 
Physics
If the sky diver releases her chute and an upward force of 800 Newtons is developed due to wind resistance, what will be the net force acting on her?
asked by Jamie 
English
1. I don't know anyone in my class. 2. In my class, I don't know anyone. ============================= In #1, what is the part of speech of 'in my class'? Does 'in my class' modify 'anyone' or 'know'? In #2, 'In my class' is an adverbial phrase, right?
asked by rfvv 
School subject mathe
7x+5x+10x=
asked by Algebra 
trigonometry
verify sinx/secx = 1/tanx+cotx
asked by Anonymous 
english
Stereotyping is a threepart procedure. In the first stage, we identify a group to which we believe another person belongs. For example, if a man is wearing a turban, one might assume he is a Muslim. In the next stage, we recall a generalization other
asked by help 
math
A jet A is flying above 2 ships B and C which are 18km apart. If the angles of depression of B and C from are 60 and 32 degrees respectively, find the height of the jet above the sea level, correct to the nearest m.
asked by someonestupid 
maths
useful websites for maths that are free.by the way im doing gsce soon
asked by help 
LA
1. It shall flash through doing ages, 2.It shall light the distant years; 3.And eyes now dim with sorrow 4. Shall be brighter through their tears 5. It shall flush the mountain ranges, 6. And the valleys shall grow bright; 7. It shall battle the hills in
asked by Anonymous (Help ASAP) 
Math
22.6 is an outlier for which of the following sets of data? A. 22.6, 21.5, 23.7, 22.6, 28.9, 22.6, 20.9 B. 2.4, 5.3, 3.5, 22.6, 1.8, 2.1, 4.6, 1.9 C. 20.5, 20.8, 21.6, 22.6, 23.7, 24.5, 25.1 D. 13.6, 31.7, 25.8, 22.6, 18.9, 21.6, 30.5
asked by jai 
science
Calculate the wavelength of a wave of frequency 40 MHz propagating in a medium Speed of light(3*10to the power 5. )
asked by Anonymous 
Maxima, Stationary Points
Long shot but does anyone have experience of using Maxima (maths program) for finding stationary points. My user guide offers no help, ive tried to manipulate the following derivative to find the stationary points however its not proving helpful.
asked by Mat 
Functions, graphs
f(x)=(x+1)/(1+x^2) a) explain why the graph lies above the x axis on the interval x=0 and x=sqrt(3) b)write an expression using the indefinite integral that gives the area between the graph f and the x axis between the values x=0 and x=sqrt(3). c)use
asked by Matthew 
physics
Force charges +q,q,+q,q placed at 4 corners of a square of sides 'a' calculate the resultant force on +Q charge at the intersection of 2 diagonals
asked by chandan 
good mornin i need some help on Texas history
1.until 1954,all jurors in texas were male t or f ***i thing is f**** 2.after brown v. board of education all texas schools immediately complied t or f **i don't know this one at least help me understand thnks*** plz help me on num two and check num 1
asked by coolguy321 
sciencemath
A pharmacist has an 18% alcohol solution. How much of this solution and how much water must be mixed together to make 10 liters of a 12% alcohol solution?
asked by wonka 
math
A confectioner has 300 pounds of a chocolate that is 1 part cocoa butter to 7 parts caramel. How much chocolate that is 1 part cocoa butter to 15 parts caramel should be combined with the first in order to create a new chocolate that is 1 part cocoa butter
asked by john 
Math
Factor the expression 5x^2 + 26x + 5 express in factored form.
asked by Kaashif 
Business study
4.1.Describe the factors that Darren &Anathi should be considering when choosing their form of ownership?4.2. Dareen&Anathi cannot decide between a partnership & private company as the best form ownership.discuss how division of profit ,liability&taxation
asked by Rosina 
Mathematics
The coordinates of point A and B are (2,3) and (4,3) respectively,find the length of AB
asked by Daniella 
science
How can we measure the Gravitational field intensity of any place on earth ?
asked by Sabbu.. 
LA
which of the following sentences includes a predicate noun? A. Justin and Meg are the winners of the contest B. the winners of the contest are they C. the winners of the contest are Justin and Meg D. the winners of the contest are excited. i think D?
asked by nobaody 
LA
which sentences has a proper subject verb agreement? A. Grandma and Aunt Louise gets you a present. B. Grandma and Aunt Louise bought you a present. C. Grandma and Aunt Louise buys you a present. D. Grandma and Aunt Louise getting you a present. i think B
asked by hello help 
Algebra
Did I get the right answer for this problem as an Integer or Decimal? 5.75  (7.84)= 13.59
asked by Dee365 
History
Describe the functions of the three different branches of the United States government. In your description, be sure to identify the purpose of each branch and provide examples of how each branch can check the power of the other two branches of government.
asked by Anonymous 
maths
A contractor supplied some items to a school. The contractor's bill is shown below. If each amount includes 5% VAT calculate how much the government receives as VAT. Electrical fittings = #52 500.
asked by Charles 
LA
whats 15/18 like there is 18 questions and you got three wrong what percent is it.
asked by hello help 
maths
A contractor supplied some items to a school. The contractor's bill is shown below. If each amount includes 5% VAT calculate how much the government receives as VAT. Electrical fittings = #52 500.Stationery #84 000 ;sports equipments #262 000;computers
asked by Frank ch 
Math
in a recent survey of middle school students about pizza toppings, it was found that 25 students like pepperoni pizza, 31 like banana peppers pizza, and 5 likes both pepperoni and banana peppers on their pizza. if 66 students were surveyed, how many
asked by jai 
TX history
10.a committee may take all of the following actions Except passing a bill into law recommending a bill for further consideration not recommending the bill******* listening to testimony about a bill 5.the leader of the house of representatives is the?
asked by coolguy321 
math
Juan will rent a car for the weekend. He can choose one of two plans. The first plan has an initial fee of $57.98 and costs an additional $0.09 per mile driven. The second plan has an initial fee of $49.98 and costs an additional $0.14 per mile driven. How
asked by unknown 
Statistics
TRUE or FALSE: The pvalue of a hypothesis test is the probability that the null hypothesisis true given the sample statistic obtained.
asked by Sara 
Math
Short answer The backtoback stemandleaf 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
asked by jai 
Statistics
he level of nitrogen oxides (NOX) in the exhaust of a particular car model varies with mean 0.7 grams per mile and standard deviation 0.19 grams per mile . (a) What sample size is needed so that the standard deviation of the sampling distribution is 0.01
asked by zoolo 
History
Did France intended to export its revolution to the other countries?
asked by Tinashe chiwaka 
Business math
I have a loan made april 5th, face value 8500 length 90 days, simple interest 8%, discount May 3. what is the discount?
asked by sue 
Climate Physics
Find the insolation in Wm^2 at summer solstice for a low obliquity of 22 degrees? I used the following: h_0=cos^1(tan(phi)* tan(delta)) cos(theta)=[sin(phi)*sin(delta)+cos(phi)*cos(delta)*cos(h_0)] Result was 397 Wm^2 This looked like an easy problem,
asked by Alice 
math
verify for sqrt(1cosx)= sin/sqrt(1+cosx). I multiplied the right side by sqrt(1cosx) and got sqrt(1cosx)= sin*sqrt(1cosx), but I don't know what to do with the sin.
asked by unknown 
math
A pair of shoes that normally costs $75 is on sale for $55. What is the percent decrease in the price, to the nearest whole percent? THANK YOU!
asked by Tim 
English
Which one of the following sentences contains an incorrect usage of the singular possessive? A. Icarus's fate was sealed when he approached the sun.B. The north forty has always been my family's land.C. Mary was dominant among Jesus'
asked by tanesha 
Algebra
Using the equation, y=2/3x2, find the equation of the line that is parallel and has the ordered pair (3,3). Write the answer in standard form.
asked by Grant 
math
A farmer is using a random sample to predict the number of broken eggs in a shipment of 3,000 eggs. Using a calculator, the farmer generates the following random numbers. The numbers 1250 represent broken eggs. 477, 2116, 1044, 81, 619, 755, 2704, 900,
asked by Tim 
Math
Michele wanted to measure the height of her school’s flagpole. She placed a mirror on the ground 48 feet from the flagpole, then walked backwards until she was able to see the top of the pole in the mirror. Her eyes were 5 feet above the ground and she
asked by Anonymous 
math ples help
Please help.. How to answer if.. 2log8/6 + 2^2log3  2log12 Thank you so much
asked by darren 
Calc Derivatives
Find the critical points of (4x3)/(3x^(1/2))
asked by Isabella 
math help pls pls
The correlation coefficient for poor health and not exercising in a group of people is 0.67. Analyze the following statement: Poor health is caused by not exercising. Is this a reasonable conclusion? Yes; everyone who doesn't exercise is by definition
asked by Oscar 
math
3 girls share a number of apples in the ratio 5:3:2. if the highest share is 40 apples, find the smallest share
asked by josephine 
math help pls pls
Analyze the following statement: Marcus notices that he runs faster in the mornings rather than the evenings. Is the statement an example of correlation or causation? Correlation, because time of day doesn't cause a person to run faster or slower
asked by Oscar 
math
Please I just cant figure out how to get the discount, thank you I have a loan made april 5th, face value 8500 length 90 days, simple interest 8%, discount May 3. what is the discount?I have the answer just cant figure out how to get it
asked by sue 
math help pls pls
You suspect that the spiciness of food served in a restaurant is positively correlated with number of soft drinks ordered. You have gathered several observations of people ordering food of different spicelevels and the number of soft drinks they ordered.
asked by Oscar 
Physics
Does the total kinetic energy of an isolated system necessarily have to be conserved when its total momentum is conserved?
asked by Terry 
Math
Six friends share 4 apples equally. How much Apple does each friend get?
asked by Rina 
business math
Joanne and Ed Greenwood built a new barn with an attached arena. To finance the loan, they paid $1,261 interest on $52,600 at 5%. What was the time, using exact interest?
asked by aisha 
Math
Sally painted a picture that has an area of 480 square inches. The length of the painting is 1 1/5 its width. Which of the following could be the dimensions of Sally’s painting? A. 20 inches by 24 inches B. 12 inches by 40 inches C. 16 inches by 30
asked by Ilana 
Social Studies
What is Obama's last name?
asked by prisoner 
Math
A taxpayer is in the 28 percent tax bracket and invests it in a San Diego City Bond paying 7 percent. What taxable interest rate will provide the aftertax return? I don't understand the formula, so can you show me how it's calculated,please.
asked by Larry 
Geometry
I have a rectangle MNOP ~ rectangle STUV. What is the length of line TU?? First rectangle is MNOP with 10 on top and 4 on the side. Second rectangle is STUV. With the top marked X for the unknown number and n the side is 6. I need help solving this. Do you
asked by R 
math
Mike had a jar of nickels that had five more nickels than he originally thought. If the total amount of nickels was $4.35, how many nickels did Mike think he had originally?
asked by Michael 
ANALYTICAL CHEMISTRY
A sample weighing 1.25 mg containing a certain compound M (FW 292.16 g/mol) was dissolved in solvent in a 5.00 mL volumetric flask. A 1.00 mL aliquot was drawn up, placed in a 10.00 mL volumetric and diluted to the mark with solvent. The absorbance of this
asked by KAMBOYI K 
Algebra
One skier covered the distance of 20 km 20 minutes faster than the other skier. Find the speed of both skiers if one of them is travelling 2 km/hour faster than the other one.
asked by Anish Panda 
math
What is the largest integer n that 4n+1 is a multiple of n+1?
asked by Andre 
math
What is the largest integer n such that 1440/(n^21) is an integer?
asked by Andre 
Algebra
sqrt(83x)+sqrt(6x1)=7(2*(sqrt(9x24)))
asked by Anish Panda 
Math
Bank A pays 4.79% compounded monthly, while Bank B pays 4.8% compounded quarterly. Which bank pays more?
asked by Devin 
Math
A seed company claims that 90% of its bean seeds will germinate. If seven of these seeds are planted in warm, moist, soil, what is the probability that exactly 6 of them will germinate? Round answer to nearest tenthousandth (4 places after decimal)
asked by Greg 
Calculus
Integrate dx/(sqrt(x^2+16)). I have no idea how to start and which method to use. Thinking some sort of trig substitution? But it doesn't look like it. Step by step? Answer key says lnx+ sqrt(x^2+16).
asked by Cindy 
physics
At 20°C, a brass cube has an edge length of 34 cm. What is the increase in the cube's surface area when it is heated from 20°C to 67°C?
asked by Jim 
6th Grade Math  Ms. Sue plz
What is the formula for the area of a trapezoid? Thanks.
asked by Geek Girl 
political science
According to Justice William O. Douglas, where can zones of privacy (the right to privacy) be found in the Constitution? A. throughout the Constitution B. in the penumbras of the Bill of Rights C. in the First Amendment D. in the writings of the Founders
asked by Anonymous 
political science
Which of the following conditions was NOT a part of the Lemon Test, as established by the Supreme Court? A. They must not entangle the government exclusively with religion B. The primary effect must not be to advance or inhibit religion C. There must be a
asked by Anonymous 
political science
The former Soviet Union cannot be considered a democracy because A. it did not regularly hold elections B. it permitted no acts of conventional participation C. it had no legislature D. there was only one political party
asked by Anonymous 
History
A Story that contains little or no policy content and is not related to the days event but that commonly discussed popular personalities and is designed to draw greater viewer interest is what? I think is biased media coverage
asked by Sarah 
College history
Social order and norms of behavior are often learned in what era or school time? I think it's either college or adulthood
asked by Sarah 
physics
What is the final equilibrium temperature when 40.0 grams of ice at 0°C is mixed with 5.00 grams of steam at 120°C? The specific heat of ice is 2.10 kJ/kg °C, the heat of fusion for ice at 0°C is 333.7 kJ/kg, the specific heat of water 4.186 kJ/kg °C,
asked by athirah 
Physics
An Alaskan rescue plane traveling 38 m/s drops a package of emergency rations from a height of 105 m to a stranded party of explorers. The acceleration of gravity is 9.8 m/s2. Where does the package strike the ground relative to the point directly below
asked by Blake 
math
how many envelopes can be made out of a sheet of paper 3m 24cm by 1m 72cm,if each envelope requires a piece of paper of side 18cm by 12cm?
asked by vipin rawat 
Calculus Derivatives
Determine the concavity of f(x)=xlnx I end up with F''(x)=1/x, where it would be concave up when x>0 and concave down when x
asked by Isabella 
College history
The former Soviet Union cannot be considered a democracy because Of what? I have info on it already I just want someone else's option and thoughts on it so I can add it to my essay
asked by Farrah 
political science
The Lilly Ledbetter Fair Pay Act was passed by President Obama in 2007 in order to address what issue?
asked by sammie 
Biology
How do ATP and ADP function in capturing and releasing energy?
asked by Halle 
math
find two numbers such that one of them is five times the other and their difference is 132.
asked by bebo 
Social science
The Second Amendment continues to be a controversial issue. One of the main questions is whether it was meant as a _______ freedom or _______ freedom. Question 4 options: individual; group absolute; conditional temporary; permanent good; bad
asked by Gates 
Social science
According to Justice William O. Douglas, where can zones of privacy (the right to privacy) be found in the Constitution? Question 2 options: throughout the Constitution in the penumbras of the Bill of Rights in the First Amendment in the writings of the
asked by Gates 
Electronics
Is a circuit a bandpass filter only when it's a high pass filter followed by a low pass filter? Or can it ever be a low pass filter and then a high pass filter (cascaded together)? Does the order matter if it's then followed by a gain/amplifier stage?
asked by Jennifer 
Business
I wonder if someone can help me on question please , Analyse the impact of relevant legislation/regulations on any two types of part time &full time employment contract ?
asked by Sara 
geography, history, life science and maths literacy
what courses can I do at university( NWU )
asked by mpho 
Maths
if the radius of a sphere is increased by 10%, prove that its volume will be increased by33.1%.
asked by Manish 
Chemisrty
Assuming equal concentrations, rank these solutions by pH: hclo4 caoh2 NH3 koh hbro
asked by Carlos 
math
Here is bob's test score math 65 arts 86 science 84 social studies 78 if his average score is 80 ,how many marks did he make in gramma
asked by cherise 
chemistry
Dr Bob, Thanks for your help. Ihad googled for 3 hours before asking you. For future reference, if anyone asks this question again, 10th grade chemistry, I found a video on You Tube that makes it easy to understand. It is, The Sci Guys, Ph indicator,
asked by lulu 
chemistry
At 1500 °C, Kc = 5.67 for the reaction CH4(g) + H2O(g) CO(g) + 3H2(g) Calculated value of ΔG°1773 for the reaction at this temperature.
asked by Ann 
chemistry
Calculate the value of the thermodynamic equilibrium constant for the following reactions at 25.0 °C. (a) N2H4(g) + 2O2(g) 2NO(g) + 2H2O(g) Kp = H20=228.6 NO= 86.69 N2H4= 159.3 02 = 0
asked by Lia