Questions Asked on
May 18, 2012

physics
An airplane with a mass of 1.2 x 10^4 kg tows a glider with a mass of .60 x 10^4 kg. If the airplane propellers provide a net forward thrust of 3.6 x10^4 N, what is the acceleration of the glider?
asked by Anonymous 
chemistryy
The reaction between 34.0 g of NH3 and excess oxygen gas produces 45.9 g of NO gas and some water. Determine the percent yield.
asked by bri 
Chemistry
The pH of a solution is 1. Which of the following statements are also true for the solution? (Select all that apply.) It will change the color of red litmus to blue. The concentration of hydronium ion is equal to the concentration of hydroxide ion. The
asked by Cody 
database management
2. 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 by Maureen 
ENGLISH 11
Identify which of the following events was NOT a major influence of the Modernist writers. *Great Depression *World War I *World War II (i thought it would be the Harlem renaissance but its not a answer choice.)
asked by Anonymous 
math
the division of a whole number N by 13 gives a quotient of 15 and a remainder of 2. Find N.
asked by alandra 
Science
Ethene gas (C2Ha) reacts with oxygen to form carbon monoxide and water. Write a balanced equation for this reaction, then find the mole ratios of substances on each side of the equation.
asked by Latice 
chemistryy
The reaction between 34.0 g of NH3 and excess oxygen gas produces 45.9 g of NO gas and some water. Determine the percent yield.
asked by bri 
physics
An airfilled capacitor consists of two parallel plates, each with an area of 7.60 cm2, separated by a distance of 1.70 mm. If a 19.2V potential difference is applied to these plates, calculate the following: (a) the electric field between the plates,
asked by andrew 
c++
Write a program that asks the user to input a grade that he or she received on an exam. The grade is an integer from 0 to 100 inclusive. The program should convert the numeric grade into the equivalent letter grade. Do the conversion by using a function
asked by jermaine 
AlgebraB
I have somemultiple choice questions that I need help with. Question 1 Find the measure of
asked by Anna64 
Math
If a family has 4 children, in how many ways could the parents have 2 boys and 2 girls as children?
asked by KeKe 
Chemistry
in a blast furnace, iron(III) oxide is used to produce iron by the following (unbalanced) reaction: Fe2O3 + CO = Fe + CO2 a. if 4 kg Fe2O3 are available to react, how many moles of CO are needed?
asked by RS 
Physics!!!!
A 78 kg trampoline artist jumps vertically upward from the top of a platform with a speed of 4.4m/s. v=7.7m/s If the trampoline behaves like a spring of spring constant 5.6×104 N/m , how far does he depress it?
asked by Daisy 
ALGEBRA
Find the APR for the following loan (monthly payments). (Round your answer to the nearest full percent.) Purchase a refrigerator for $2,100 at 20% addon interest for 3 years.
asked by Monic 
chemistry
A 150mL sample of a .600mol/L calcium nitrate solution is mixed with a 1.00L of .500mol/L NaOH(aq). Calculate the mass of precipitate produced in this reacton.
asked by Lizzy 
Statistics
Which of the following statements best describes the uncertainty associated with a 95% confidence interval for a population proportion, computed from a simple random sample? A. We don't know whether the particular confidence interval is successful or not,
asked by Mary 
Math
A bag contains 4 green marbles, 6 red marbles, and 2 white marbles. Three marbles are drawn at random with replacement. With replacement means that after a marble is drawn, it is replaced before the next one is drawn. Find the probability of all three
asked by Junior 
World History
Important major achievements of the sumerians civilization? Anyone Could Help Me Please
asked by Mary Jane 
algebra
The product of the page numbers on two facing pages of a book is 110. Find the page numbers. the page numbers are:
asked by rr 
English
"I have but one lamp by which my feet are guided; and that is the lamp of experience." This is an example of a. an appeal to authority b. allusion c. conceit d. logic C? Thanks
asked by mysterychicken 
chemistry
KMnO4 + H2SO4 + KNO2> MnO2 + KNO3 + K2SO4 + H2O
asked by ashia4 
English
Which technique of speeches does Franklin use in this passage? From such an assembly can a perfect production be expected? A. restatement B. repetition C. rhetorical question D. parallelism
asked by Anonymous 
math
The base of a triangle is 5cm greater than the height. The area is 52cm^2. Find the height and length of the base.
asked by Frank 
Physics
What is the velocity at the midway point of a ball able to reach a height y when thrown with an initial velocity v0? (Assume the ball is thrown upward and that up is the positive direction. Use the following as necessary: y and g. ) Someone posted this
asked by James 
Statistics
From random sample of 200 college students, 40 students indicated that they smoke cigarettes. Use the information from the sample to calculate a 95% confidence interval for the population proportion of college students that smoke cigarettes (round to
asked by Mary 
Physics
A bullet is fired through a board 12.1 cm thick, with a line of motion perpendicular to the face of the board. If the bullet enters with a speed of 375 m/s and emerges with a speed of 205 m/s, what is its acceleration as it passes through the board? (Take
asked by James 
Physics
An electric drill operates at a potential difference of 120V and draws a current of 1.5 Amps. If it takes 50 seconds to drill a hole in a piece of steel,calculate the amount of electrical energy used by the drill in that time.
asked by Don 
Physics
An electric immersion heater is rated 5 A when connected to a 120V circuit. What is the resistance of the heater? If it takes 168 KJ to heat 500 ml of water from 20 deg C to boiling, how long does it take to heat the water?
asked by Don 
physics
1.)A radio station transmits waves of length 400m.if the speed of the waves is 3*10power8m/sec,find the frequency of the radio station. 2.)Audible range of frequencies is between 20Hz and 20KHz.Find the range of the wavelengths corresponding to these
asked by srikar 
CHEMISTRY
Consider the following cell: PtH2(g, 0.130 atm)H (aq, ? M)Ag (aq, 1.00 M)Ag(s) If the measured cell potential is 0.90 V at 25 °C and the standard reduction potential of the Ag /Ag halfreaction couple is 0.80 V, calculate the hydrogen ion
asked by Jematormal91 
economics
How can I determine if two goods are in the same market or market segment? I am not sure how to determine if they have the same demand curve. For example I need to determine if a movie rented from Redbox is or is not in the same market as a movie seen at a
asked by DM 
language arts
I need to do an essay in a language arts package titled noggin. I lost the essay part of it. I'm not asking for you to do an essay for me, but if you could put up the page so I know how to make the Picture look that the essay goes in. I need to have it in
asked by Michael 
Math
Question 2 For the function f(x) = 3x22x7, find f(2). Answer f(2) = 13 f(2) = 25 f(2) = 1 f(2) = 1/2 3 points Question 3 One day you work 3 hours and your boss gives you $22. Another day after working 4 hours your boss gives you $33. Yesterday after
asked by adam 
ALGEBRA
If $695 is invested in an account that earns 21.75%, compounded annually, what will the account balance be after 15 years? (Round your answer to the nearest c
asked by Monic 
Statistics
A researcher found a sample proportion of 0.94 for estimating the population proportion of freshmen at a university who had Facebook accounts. If the standard deviation of the sampling distribution of the sampling proportion is 0.02, what is a 95%
asked by Mary 
algebra 2
You and your friend are both knitting scarves for charity. You knit 8 rows each minute and already have knitted 10 rows.Your friend knits 5 rows each minute and has already knitted 19 rows. When will you both have knitted the same number of rows?
asked by tay 
Math
The circumference of the front tire is 6ft. How many complete turns does the front wheel make in 30 ft driveway?
asked by Hannah 
english
Which word is closest in meaning to “impediments”?
asked by bob 
math
find equivalent expression without using parentheses (7x6y+6z)
asked by jenece 
chemistry
calculate grams of potassium bromide dissolved in 50 grams of water at 0 celcius
asked by Anonymous 
English
Seven letter word fifth letter e and seventh letters s
asked by Anonymous 
english
A major difference between today’s Hispanic and past European immigrants is that— (1 point)for Hispanics, the old country is only two hours away. European immigrants were all lightskinned. Hispanics are willing to take jobs Americans don’t want.
asked by Oi 
Physics
An object is thrown vertically and has an upward velocity of 5 m/s when it reaches three fourths of its maximum height above its launch point. What is the initial (launch) speed of the object?
asked by James 
Physics
A runner of mass 51.5 kg starts from rest and accelerates with a constant acceleration of 1.35 m/s2 until she reaches a velocity of 5.7 m/s. She then continues running with this constant velocity. (Take the direction the runner is going to be the positive
asked by James 
E&M Physics
Hello, I have this number where I don't understand why there's a negative sign to it. Consider a closed triangular box resting withing a horizontal electric field of magnitude E = 7.8 x 104 N/C as shown here. Calculate the electric flux through (a) the
asked by Robert 
math
Adrienne had a pizza party at a local arcade. She spent for pizza and per person for games. Let c be the total cost of pizza and games, and let p be the number of people at her party. Write an equation to represent the problem. Which is the dependent
asked by le 
algebra.
A rectangular is six times as long as it is wide. If the area is 54 ft^2, find the length and the width of the table.
asked by rr 
math
square ABCD has the centers of 4 equal circles as its vertics. Find the shaded area
asked by alandra 
Trig
Find the radian measure of the central angle of a circle of radius r that intercepts an arc of length s.? Radius, r=16 ft Arc length, s=10 ft
asked by Sue 
Statistics
A Gallup Poll reported the percentage of Americans who approve of the President's job performance was 47% with a margin of error of 2 percentage points. What is a 95% confidence interval for the population percentage? A. 41% to 53% B. 45% to 49% C. 46% to
asked by Mary 
math
A cone shaped container with its vertex at the top and its circular base on the ground is filled to 3/4 of its height with water. What fractional part of the container is filled with water?
asked by ... 
English
1. I would be glad to go with you. 2. I would be glad if I could go with you. 3. I would be glad if I went with you. (Does #1 mean #2 or #3?) 4. To watch him play basketball, you would think him a pro player. 5. If you could watch him play basketball, you
asked by rfvv 
rate of change
Joe is investigating the rate of change of the function y=cos x on the interval xE[0,2π]. He notices that the graph of y=cos x passes through the xaxis at 45°. He also determines the instantaneous rate of change at x = 0, π, and 2π by inspection.
asked by Kjd 
Moanalua Middle School
One box contains six color cards: two blue, three yellow, and one orange. Another box contains four number cards, numbered 1, 2, 3, and 4. One card is picked at random from each box with replacement. find the probability of blue, then 1.
asked by Fred 
math
Records from buzz's sawmill show that workers have a 0.02 probability of losing an arm and a 0.03 probability of losing a leg in a year. What is the probability that a worker does not lose an arm? What is the probability that worker does not lose and arm
asked by Matt 
Math
A bag contains 4 green marbles, 6 red marbles, and 2 white marbles. Three marbles are drawn at random with replacement. With replacement means that after a marble is drawn, it is replaced before the next one is drawn. What is the probability of not green,
asked by Junior 
life orientation
descibe 10 factors that contribute to the hiv & aids.
asked by sibonelo 
physics
a 12 Volt car battery supplies 1.0 x 10^3 C of charge to the starter. How much energy is used to start the car? ( it's not 10 cubed, but 10 to the third power)
asked by Don 
graphing trig functions
for graphing basic trig functions such as y=2sinx or y=1/3cosx, how do you know what the points are to graph with out using a calculator?
asked by bkue 
math
Five years ago, you bought a house for $151,000, with a downpayment of $30,000 which meant you took out a $121,000 loan. Your interest rate was 5.75% fixed. You would like to pay more on your loan. You check your bank statement and find the following
asked by TAMMY 
physics
An ideal gas with r(Gama) = 1.5 occupies a volume of 2.0 L. The gas expands isothermally to a volume of 3.0 L. Alternatively, the gas reaches the same final state by first adiabatically expanding to the final volume then heating isochorically to the final
asked by sand 
Chemistry
How many moles of methanol are dissolved in 1.5 L of water to make a 2.0 m solution?
asked by Bigfoot 
algebra
plz solve factor trinomial a^2+10a+16
asked by rr 
Physics
An object is thrown vertically and has an upward velocity of 5 m/s when it reaches three fourths of its maximum height above its launch point. What is the initial (launch) speed of the object?
asked by James 
Math
Mr Gopal left 3/10 of his fortune to his wife. Of the remainder, 1/10 was donated to charity and the rest was distributed among his 4 children , A , B , C and D in the ratio of 4:3:3:2 . If $63000 was given to charity, calculate (a)the amount received by A
asked by Jason 
Calculus AB
Find the derivative of f(x) = 1/x(27,000,000/pi + 6,750,000) + 20pix^2 Can someone help me with this? Thanks.
asked by Kira 
Statistics
In a poll of 1,000 adults, 57% believed that there was too much inappropriate content on TV. A 95% confidence interval for the proportion is given as 0.54 to 0.60. What is the margin of error of this poll? A. 0.54 B. 0.015 C 0.03 D. 0.57
asked by Mary 
English
Which of the following represents an appeal to the head? a. "We are apt to shut our eyes against a painful truth, and listen to the song of that siren, till she transforms us into beasts." b. "Has Great Britain any enemy, in this quarter of the world, to
asked by mysterychicken 
math
the new gymnasium being built at IS61 is a square with an area of 3,600 square feet. What are the dimensions of the gymnasium?
asked by alandra 
math
K bought some marbles and gave half of them to L. bought some stamps and gave half of them to K. K used 5 stamps and L gave away 11 marbles. The ratio of the number of stamps to the number of marbles K had left then became 1:7 and the ratio of the number
asked by Im 
math
M and N are the midpoints of the sides of a square. What is the ratio of the area of triangle AMN to the area of the complete square?
asked by alandra 
statistics
In a survey of 400 college students, 40 were lefthanded. Treating the sample as if it were random and using 0.015 as the standard deviation of the sampling distribution of the sample proportion, what is the lower bound of a 95% confidence interval for the
asked by D 
Math
Two sides of rectangle are 20 cm &10 cm. They are increased in ratio 2:3 & 3:7 . Find the percentage increase in its area?
asked by Alok 
chemistry
determine the amount in grams of H2SO4 required to make 3.0L of 1.15M Nacl
asked by ashia 
Physics
A circular shop sign of mass 10kg is to be hung from the wall of the shop. The sign hangs from a light, rigid horizontal support of length 0.48m that is hinged to the wall at one end A. The other end B of the support is attached by a model string to a
asked by Anonymous 
chemistry
what is reason for the different atomic masses of the isotopes of an element
asked by jollie 
ALGEBRA
Find the future value, using the future value formula and a calculator. (Give your answer to the nearest cent.) $44.01 at 6.5% compounded semiannually for 2 years
asked by Monic 
ALGEBRA
Calculate the monthly finance charge for the following credit card transaction. Assume that it takes 10 days for a payment to be received and recorded and that the month is 30 days long. Assume 365 days in a year. (Round your answer to the nearest cent.)
asked by Monic 
Physics
A bus goes over the crest of a hill at 10 m/s and the radius of curvature of the hill is 15 m. Determine the force exerted by the car seat for a man of 75 kg. At what speed would you become weightless
asked by Del 
geometry
find the perimeter and area of a right triangle if the shortest side is 20m and the longest side is 29m. Include correct units with your solution.
asked by angela 
critical thinking
utilizing the seven factors of the utilitarian calculus briewy evalute each factor comparing dropping the bombs on Japan versus invading Japan to end world war II
asked by Herstine 
Math
Factor the polynomial completely. 6x^3 + 36x^2  240x
asked by Maddie 
Physics
A runner of mass 51.5 kg starts from rest and accelerates with a constant acceleration of 1.35 m/s2 until she reaches a velocity of 5.7 m/s. She then continues running with this constant velocity. (Take the direction the runner is going to be the positive
asked by James 
life orientation
discuss 5 way in which the flood impact on the community.provide relevant sources to support you claim
asked by sibonelo 
algebra
factor trinomial w^215w+56
asked by rr 
science
in shell and tube type of condenser, the flue gas mixture of acetaldehyde,oxygen and nitrogen at 17391.17Kg/hr enters to the condenser at 75 degree celcius and leaves at 20 degree celcius,while the cooling water enters at 17 degree celcius and leaves at 37
asked by hagos 
algebra
help; factor with wrong answer s^2+10s+25
asked by rr 
accounting
What is included in the cost basis of a longlived asset? Explain for at least two types of such assets.
asked by Quana 
accounting
What sources are reliably used to estimate an asset's useful life?
asked by Quana 
PreCalculus
Hello! I'm stuck on how to do this problem and would appreciate some help! Choose a nonzero complex number c for f(z) = z2+ c. Find a complex number v that is in the escape set. Find a complex number w that is in the prisoner set. Graph the first five
asked by Anonymous 
Statistics
1000 scientists create 95% confidence intervals for parameters of interest. If they all compute the confidence intervals correctly, how many of the intervals would we expect to contain the true population parameter? A. 950 B. 0 C. 95 D. 1000
asked by Mary 
Computer
On a laptop, how do you get the 10 to the 3rd power? ( make a small 3 after the 10?)
asked by Don 
social studies
what was the cause of the american revolution of 1776 the french revolution of 1789and the Russian revolution in 1917
asked by selena 
algebra
There are n teams in a league and the number of games played is given by the polynomial n^2n=N. A women's softball league has 12 teams. What is the total number of games to be played?
asked by rr 
physics
1.)A rock at the blank of a coast is struck by water waves.find the frequency of the waves striking the rock,if the distance between two consecutive crests or troughs is 100m.velocity of water wave is 150m/sec. 2.)the timeperiod of a vibrating body is
asked by srikar 
Find x in combine function
Given the functions f(x)=sqrt[x] and g(x)=x+1, determine all possible values of x for which f(g(x)) = g(f(x)). Show steps please, thanks a lot!
asked by Kjd 
gen chemistry
final volume obtained when a 1.5M KOH solution is dilued to 1.25M
asked by ashia2 
gen chemistry
calculate the percent m/v concentration of a 5L solution containing 500g NaCl
asked by ashia3 
business
How many 20kg bags of flour can a 20x8ft container accomodate?
asked by Oluwaseyi 
chemistry
the particles protons and neutrons present in atomic nucleus are known as......
asked by angelina 
physics
why is water tube produces the noise while pumping ground tank to upper tank at 6th flour ?
asked by ncharyk 
Moanalua Middle School
One box contains six color cards: two blue, three yellow, and one orange. Another box contains four number cards, numbered 1, 2, 3, and 4. One card is picked at random from each box with replacement. find the probability of yellow, then less than 4.
asked by Junior 
MATH
a parabola passes via the points (1.5,1) and (3,5). given that the vertex lies on the line 7x+3y4=0,find the focus and the equation of the parabola
asked by KEV 
ALGEBRA
Determine the comparable interest rate for a $80,000 loan when the quoted information is 12.1% + 0.5 pt + $300. (Round your answer to two decimal places.)
asked by Monic 
Calculus
HOw do I find the domain of f(x)= x^2+3x+5?
asked by Sam 
math
how many feet are in 96 inches
asked by Anonymous 
World History
What Are The Causes of The Renaissance?
asked by Hempsam 
geometry
a square has a diagonal with length 14 mm. Find the perimeter of the square.
asked by lola 
Chemistry
If a gas has a volume of 500 ml and pressure of 1.5 atm, what will the pressure be if the volume is reduced to 250 ml?
asked by Bob 
Math
How do you simplify the square root of c raised to the 15th (sqrt(c^15))?
asked by Carson 
science (physics)
A chairlift carries skiers to the top of a ski hill. If the chairlift does 180 kJ of work in 15s, what is the power of the chairlift?
asked by mona 
Physics
An object is thrown upward with a speed of 21.5 m/s. How high above the projection point is it after 2.06 s?
asked by James 
Geometry
Write 5x^106x^53 in quadratic form
asked by shae 
criminal justice
· Write a 700 to 1,050word paper in which you describe the issues facing police departments in today’s society. · Include a description of how local, state, and federal law enforcement agencies currently interact with the U.S. Department of Homeland
asked by asia