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2011
May

Questions Asked on May 1, 2011

) A batter hits a baseball so that it leaves the bat at speedVo = 37.0m/s at an angle ao = 53.1°, at a location where g = 9.80
1. 4 answers
2. asked by hehe
3. 27,308 views
let R be the region bounded by the x-axis, the graph of y=sqrt(x+1), and the line x=3.Find the area of the region R
1. 1 answer
2. asked by paul
3. 5,308 views
The force exerted by the wind on the sails of a sailboat is 500 N north. The water exerts a force of 150 N east. If the boat
1. 1 answer
2. asked by polo Q
3. 5,039 views
Calculate the solubility of AgCl in:Ksp = 1.6x10^-10 a) 100 ml of 4.00 x 10^-3 M Calcium chloride b) 100 ml of 4.00 x 10^-3 M
1. 3 answers
2. asked by Raf
3. 4,419 views
OF2(g) + H2O(g) -> O2(g) +2HF(g) ΔH°rxn = -318 kJUsing bond energies, calculate the bond dissociation energy of the O-F bond,
1. 2 answers
2. asked by Kat
3. 3,990 views
A typical soap molecule consists of a polyatomic anion associated with a cation. The polyatomic anion containd hydrogen, carbon
1. 3 answers
2. asked by celina
3. 3,350 views
NaOH(aq)+H3PO4(aq)�¨Na3PO4(pq)+H2O(l)Please help.
1. 3 answers
2. asked by Diana
3. 3,050 views
The value of a new car purchased for $28,000 decreases 8% per year. Write an exponential decay model for the value of the car.
1. 1 answer
2. asked by Benjamin
3. 2,909 views
The cloth shroud from around a mummy is found to have a carbon-14 activity of 8.1 disintegrations per minute per gram of carbon
1. 3 answers
2. asked by Anonymous
3. 2,832 views
Express as a single logarithmln(a)+1/2ln(b) 2ln4-ln2
1. 5 answers
2. asked by Jan
3. 2,758 views
The half-life of phosphorus-32 is 14.26 days. The decay constant is k=4.86×10−2/days. If you accidentally spill phosphorus-32
1. 3 answers
2. asked by Anonymous
3. 2,411 views
An airplane is 34 ground miles from the end of the runway and 6 miles high when it begins its approach to the airport. To the
1. 4 answers
2. asked by sara
3. 2,197 views
I am doing Unit Analysis and I can not fugure out how to set the promble up on these 3. I just need to know how to set it up I
1. 1 answer
2. asked by Shawn L
3. 2,043 views
a 20 foot ladder leaning against a building makes and angle of 60 degrees with the ground. How far from the base of the building
1. 3 answers
2. asked by sara
3. 1,961 views
how many calories to change 100 grams of water at 100 degrees C. to 100 grams of steam at 100 degrees C.?
1. 2 answers
2. asked by Crystal
3. 1,918 views
4 NH3(g) + 5 O2(g) 4 NO(g) + 6 H2O(g)If standard enthalpy change is -906.2 kJ, what quantity of heat is evolved or absorbed in
1. 2 answers
2. asked by Kat
3. 1,913 views
a bootlenose dolphin jumps out of the water. the path the dolphin travels can be modeled by h=-0.2d^2+2d, where h represents the
1. 1 answer
2. asked by bob HELP NEEDED HELP NEEDED HELP NEEDED
3. 1,796 views
OF2(g) + H2O(g) -> O2(g) +2HF(g) ΔH°rxn = -318 kJUsing bond energies, calculate the bond dissociation energy of the O-F bond,
1. 1 answer
2. asked by Kat
3. 1,734 views
Due to a storm, a pilot flying at an altitude of 528 feet has to land early. If he has a horizontal distance of 2000 feet to
1. 12 answers
2. asked by A.J
3. 1,732 views
How do you use a Lewis Structure to find the oxidation state of an element. I have this question using the oxidation rule i got
1. 3 answers
2. asked by Farah
3. 1,697 views
at the instant shown, the 50 lb bar rotates clockwise 2 rad/s. The spring attached to its end always remains vertical due to the
1. 1 answer
2. asked by Anthony
3. 1,605 views
Three 75.0-g samples of copper, silver, and gold are available. Each of these samples is intially at 24.0 degrees C, and 2.00 kJ
1. 1 answer
2. asked by Joe Schmo
3. 1,574 views
(c) Tube (c) is again filled with water. A1 and A2 are the same as in part (b). Two pistons apply different forces to the water
1. 3 answers
2. asked by d
3. 1,524 views
A $1.2 million state lottery pays $5,000 at the beginning of each month for 20 years. How much money must the state actually
1. 1 answer
2. asked by help plzzz
3. 1,522 views
A gneral having formed his soldiers numbering 15400,into a solider square,found he had 24 men left over,how many soliders did
1. 1 answer
2. asked by rehmanullah
3. 1,499 views
Can you please check my work. Adjectives, adverbs ad comparisons. Use 5 adverbs and 5 adjectives to write a review. Compare an
1. 31 answers
2. asked by icelocsgirl
3. 1,492 views
Calculate the solubility of silver chloride in 10.0 M ammonia given the following information:Ksp (AgCl) = 1.6 x 10^–10 Ag+ +
1. 2 answers
2. asked by Raf
3. 1,453 views
A simple dartboard has three areas…the main board has a radius of 8 inches, there is a circle with a radius of 6 inches, and
1. 2 answers
2. asked by Rodney
3. 1,432 views
Mark has 28 10-cent and 20-cent pieces. How many of each coin does he have if their total value is $4.30?In a class of 26
1. 1 answer
2. asked by Maria
3. 1,412 views
What are the benefits and challenges of one technologically based communication modality—e-mail, a web-based forum, and so
1. 6 answers
2. asked by bobbi
3. 1,359 views
Use at least five adverbs and five adjectives to write a brief review of a movie, sporting envent, musical performance, or
1. 4 answers
2. asked by Tracy
3. 1,354 views
3x^2+9x+4=0 the discriminant is 33, using the discriminant to determine the number of real solutions
1. 1 answer
2. asked by kim
3. 1,324 views
he question is:A spherical capacitor contains a solid spherical conductor of radius 0.5mm with a charge of 7.4 micro coulombs,
1. 0 answers
2. asked by Josh
3. 1,316 views
I think this should be easy but im stuck. Please help:Suppose a compound could point in any of two directions in the solid and
1. 1 answer
2. asked by Jude
3. 1,306 views
The revolt in Hungary (1956), the demonstrations in Czechoslovakia(1968), and the formation of Solidarity in Poland (1980's) are
1. 3 answers
2. asked by Molly
3. 1,285 views
A debt of $6000 is to be amortized with 8 equal semiannual payments. If the interest rate is 5%, compounded semiannually, what
1. 1 answer
2. asked by ronald
3. 1,274 views
An observer in a hot air balloon some distance away from the aqueduct determines that the angle of each depression to each end
1. 1 answer
2. asked by Anonymous
3. 1,265 views
How would you solve this differential equation?dy/dx=1/2x+y-1
1. 2 answers
2. asked by Joe Schmo
3. 1,256 views
The number 4641 can be expressed as the product of two 2-digit whole numbers. What is the sum of these two numbers?
1. 1 answer
2. asked by Troy
3. 1,233 views
I just wanted to know if the following alternatives are possible. Thank you.1) An actor plays the part of a character in a film
1. 1 answer
2. asked by Henry1
3. 1,222 views
Find the exponential function of the form y=ax^b whose graph passes through the points (-3, 1/27) and (0,1).I don't know where
1. 7 answers
2. asked by Anonymous
3. 1,196 views
Hello, I have a question for the question to solve, hope your company can help ....A wife has been carrying out fasakh the in
1. 0 answers
2. asked by syah
3. 1,193 views
The Call of the Wild by Jack London"He was preeminently cunning, and could bide his time with a patience that was nothing less
1. 4 answers
2. asked by Misty
3. 1,173 views
Which of the following is true for the transition of electrons from a higher energy to a lower energy state?Choose one answer.
1. 1 answer
2. asked by ashley --- HELP PLEASEE!!!
3. 1,168 views
How to determine which of the compounds will have the lowest boiling point vs the highest boiling point?
1. 5 answers
2. asked by Sarah (C)
3. 1,154 views
The terms of a single parent's will indicate that a child will receive an ordinary annuity of $20,000 per year from age 18 to
1. 1 answer
2. asked by stuck on this one ?
3. 1,153 views
A couple purchasing a home budget $1700 per month for their loan payment. If they have $15,000 available for a down payment and
1. 1 answer
2. asked by ryan
3. 1,126 views
I wrote 5 phrases and several alternatives. Can you please check tif they are grammatical? Thank you. I urgently need them. I
1. 1 answer
2. asked by Henry1
3. 1,110 views
Of 29 college juniors at State University, 13 preferred pepperoni pizza, 11 preferred supreme, and 5 preferred cheese. If we
1. 5 answers
2. asked by Rodney
3. 1,100 views
Is it in the interest of high-income countries to promote the development of poor countries? Why or why not?
1. 3 answers
2. asked by Jon
3. 1,091 views
in the reaction between sodium and water, hydrogen gas is given off and sodium hydroxide is formed. The gas is collected and
1. 1 answer
2. asked by Anonymous
3. 1,082 views
Use standard heats of formation in Appendix L to calculate standard enthalpy changes for the following reactions.1.45 x 10-2 mol
1. 2 answers
2. asked by Kat
3. 1,071 views
1) evaluate: integral of(3x^2 + 5x - 1 + 3/x) dx x^3/3 + x^2/5 - x Is this correct? 2) evaluate: integral of (5e^7x + srqtx) dx
1. 2 answers
2. asked by Hannah
3. 1,037 views
I last doubt on the same sentence.I just want to summarize the use of "leave". We are leaving Turin at ... We are leaving for
1. 1 answer
2. asked by Henry1
3. 1,035 views
Suppose an individual makes an initial investment of $1100 in an account that earns 7.5%, compounded monthly, and makes
1. 1 answer
2. asked by help me i'm stuck
3. 1,023 views
I left out a few more doubts. Thank you very much.1)Can you use the plural form with the word family? Example: When my family
1. 1 answer
2. asked by Henry1
3. 1,013 views
A train is moving with a speed of 50 miles per hour. A man standing in the rear of a train car throws a ball toward the front of
1. 1 answer
2. asked by ashley --- HELP PLEASEE!!!
3. 1,012 views
1) Science is the ______ of temperature2) a ________ is used to measure temperature. 3) ice is ____ dense than water 4) adding
1. 1 answer
2. asked by Crystal
3. 1,008 views
A rectangle park measures 300 ft by 400 ft. A sidewalk runs diagonally from one corner to the opposite corner. Find the length
1. 3 answers
2. asked by Steph
3. 1,004 views
a bootlenose dolphin jumps out of the water. the path the dolphin travels can be modeled by h=-0.2d^2+2d, where h represents the
1. 1 answer
2. asked by bob
3. 998 views
I am hoping that someone who is good at and likes Spanish grammar can check over my "if-then" (subjunctive-conditional) clauses
1. 2 answers
2. asked by Jacqueline
3. 991 views
I still have the following doubts. I really hope you can help me this time, too.1) She asked: "Have you done your homework yet?
1. 1 answer
2. asked by Henry1
3. 980 views
Since 1991, trends seem to indicate improvement with factors involving teenagers in the United States which could translate into
1. 0 answers
2. asked by ada
3. 959 views
Youare riding a sled across frictionless ice. It has been given an initial push and is now traveling at a constant velocity, in
1. 2 answers
2. asked by SUZY
3. 953 views
A recent graduate's student loans total $13,000. If these loans are at 4.1%, compounded quarterly, for 9 years, what are the
1. 1 answer
2. asked by meg
3. 953 views
Law of Gravitation- Find an expression for the magnitude of the initial velocity that a projectile must possess in order to
1. 2 answers
2. asked by Dwayne
3. 953 views
Balance the following equation in basic mediaCLO3 (-1) +I (-1) --------->CLO2 +I2 please i need the final answer too
1. 4 answers
2. asked by Liz frank
3. 952 views
use the product rule to find the derivatives of the given functiony=(3x^2-8)^2
1. 2 answers
2. asked by ash
3. 942 views
If $86,000 is invested in an annuity that earns 5.2%, compounded quarterly, what payments will it provide at the end of each
1. 3 answers
2. asked by ughh help
3. 932 views
Parents brought a four year old adopted daughter to see a psychiarist. The child was polite i greeting but did not smile and
1. 1 answer
2. asked by deb
3. 931 views
1. Blue light and yellow light combine to produce white light because they constructively interfere. Explain why2. You shine
1. 4 answers
2. asked by Quinten
3. 928 views
I have an urgent question:I have to mention only the countries two tourists went through. I want to be sure that they are
1. 1 answer
2. asked by Henry1
3. 911 views
What is the number of "UNBOUND" electrons in H2O...its not 0 or 2....is it 1??
1. 1 answer
2. asked by CHEMISTRY
3. 908 views
The problem describes a debt to be amortized.A man buys a house for $350,000. He makes a $150,000 down payment and amortizes the
1. 0 answers
2. asked by angela
3. 902 views
find the height of an image formed in a concave mirror with a 4.0cm focal length if the height of the objact is 2.5cm and it is
1. 0 answers
2. asked by Anonymous
3. 893 views
You are standing on the beach and you notice 4 waves travel over your feet in 8 seconds. Your friend is 4 meteres from you in
1. 2 answers
2. asked by conner
3. 881 views
You are driving your race car around a circular test track. Which would have a greater effect on the magnitude of your
1. 1 answer
2. asked by john
3. 861 views
Solve the equation.2log3 y = log3 4+ log3 (y+8) Here's what ive got take out the logs and say y^2= 4+ y +8 which simplifies to
1. 2 answers
2. asked by Kenya
3. 848 views
A worker in an automobile assembly line who chooses this type of work because of the job security it entails is said to be
1. 3 answers
2. asked by Juan
3. 847 views
The period of a simple pendulum is measured to be 4.0 seconds in a frame of reference. Which of the following is correct when
1. 1 answer
2. asked by ashley --- HELP PLEASEE!!!
3. 844 views
Which of the following summarizes Rutherford's model of the atom?Choose one answer. a. Electrons are embedded in a positive
1. 1 answer
2. asked by ashley --- HELP PLEASEE!!!
3. 838 views
Put these facts in your only words*Metacomet is an indian cheif who hated christianity. * He would always turn down offers to
1. 5 answers
2. asked by Frances
3. 833 views
Find the area of the region bounded by the graphs of the algebraic functions:f(y)=y^2+12 g(y)=0 y=-12 y=13
1. 0 answers
2. asked by Climothy
3. 831 views
Given the quadratic function f(x) = 16x2 – 64x + 64, find a value of x such that f(x) = 16.
1. 1 answer
2. asked by kozy
3. 828 views
Find the inverse of the function y=log8 x
1. 1 answer
2. asked by Marta
3. 820 views
what is the output by each psuedocode segments ?1. a=1 b=2 c=5 while a<c a = a+1 b = b+c endwhile output a, b, c 2. d=4 e=6 f=7
1. 1 answer
2. asked by michael
3. 812 views
How a person respond to this type of statement? I am not sure how I would respond to this statement. Do you have any suggestions
1. 3 answers
2. asked by Sharon
3. 810 views
Which of the following is correct according to Rutherford's atom model?Choose one answer. a. Atomic spectra should be line
1. 0 answers
2. asked by ashley --- HELP PLEASEE!!!
3. 810 views
A) a 100 gram ice cube is at -10 degrees celcius. how many calories needed to raise it to 0 degrees C.?B) once its at 0 degrees,
1. 2 answers
2. asked by Crystal
3. 806 views
How do you find the inverse of functions? for example how would you find the inverse of y= log8 x
1. 6 answers
2. asked by Kenya
3. 792 views
You deposit $800 in an account that pays 5.5% annual interest compunded continuously. Find the balance at the end of 5 years.Am
1. 1 answer
2. asked by Webber
3. 777 views
Find the vertices, center, asymptotes, and foci of the ellipse and sketch its graph: 9x^2-4y^2-18x+8y+41=0
1. 3 answers
2. asked by Jim
3. 770 views
The temperature at 1:00 p.m. was 88 degrees farenheight. This was 12degrees warmer then at 8:00 a.m. Earlier on the same day,
1. 4 answers
2. asked by cassandra
3. 758 views
Please help me with these factorise algebra questions!!!1. 9c squared + 30c + 25 - 4d squared 2. 12 + 89 - 4a squared 3. -5x
1. 2 answers
2. asked by Jason
3. 756 views
10a^2 + 25a - 15factor out the GCF.
1. 1 answer
2. asked by carol
3. 747 views
in kinglear act 2: who is curan and what position does he hold in society.2) edgar decide to disguie himself as what? 3) Regan
1. 4 answers
2. asked by reem
3. 742 views
couple finances a house valued at $150,000. They make a $10,000 down payment and finance the remainder for 30 years at 6.8%.
1. 3 answers
2. asked by lucy
3. 739 views
Suppose a state lottery prize of $2 million is to be paid in 20 payments of $100,000 each at the end of each of the next 20
1. 0 answers
2. asked by janet
3. 738 views
A homeowner planning a kitchen remodeling can afford a $200 monthly payment. How much can the homeowner borrow for 3 years at
1. 0 answers
2. asked by nicole
3. 733 views
Each year the value of a car decreases by 25% of its value the previous year. After 5 years, what is the value of a car
1. 2 answers
2. asked by Joe
3. 723 views

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