Questions Asked on
November 16, 2010

chemistry
can someone please help me with this question: mass of ferrous ammonium sulfate = 4g mass of k3(fe(c204)3)*3h2o = 4.25 g 1) using the above mass of ferrous ammonium sulfate calculate the theoretical yield of k3(fe(c204)3)*3h2o? 2) the percent yeild of it?
asked by eddy 
algebra
how do I find the vertex of y = x^2  18? I got 9, 81 but that seems impossible I think I'm missing something
asked by pat 
statistics
The average time to sew a pair of pants is 4.2 hours with a standard deviation of 30 minutes and if the distribution is normal then the probability of a worker finishing the pants in less than 3 hours is.
asked by bill 
Biology
4.0 g of ferrous ammmonium sulphate, FeSO4(NH4)2SO4 6H2O, is used. Since the oxalate is in excess, calculate the theoretical yield of the iron complex. Please help with this question. Thank you.
asked by Serena 
Physics
Starting from rest, a 98kg firefighter slides down a fire pole. The average frictional force everted on him by the pole has a magnitude of 720 N, and his speed at the bottom of the pole is 3.8 m/s. How far did he slide down the pole?
asked by Shannon 
Physics
A 58 kg bungee jumper jumps from a bridge. She is tied to a bungee cord whose unstretched length is 15 m, and falls a total of 36 m. Calculate the spring stiffness constant k of the bungee cord, assuming Hooke's law applies. Calculate the maximum
asked by Linda 
algebra
6x(2x3)=31
asked by elizabeth 
physics
A stone tied to the end of a string, 80 cm long, is whirled in a horizontal circle with a constant speed. If the stone makes 14 revolutions in 25 seconds what is the magnitude and direction of the acceleration of the stone?
asked by stacy 
9th grade algebra
solve.(polynomials) 3(x5)=45
asked by elizabeth 
finance
What is the relationship between an interest rate and a discount rate in time value of money calculations?
asked by Anonymous 
adult education
Did i correct all the mistakes in this article? Why are many students choosing to pursue their college degrees using their home computers? Benjamin Franklin said “A penny saved is a penny earned.” This principle applies to the American and foreign
asked by Max 
Math
solve 3x+ 4 = x  5
asked by Nekoda 
Multivariable Calculus  Green's Theorem
Compute the line integral of F = along the path from A to B. The path from A to B is not closed, it starts at A which has coordinates (1,0) goes to (1,0) then goes up to (1,1) then left to (2,1) then down to (2,1) and finally stops at B at (1,1).
asked by Calvin 
physics please help
A 8.6 kg board is wedged into a corner and held by a spring at a 50.0° angle, as the drawing shows. The spring has a spring constant of 186 N/m and is parallel to the floor. Find the amount by which the spring is stretched from its unstrained length.
asked by tim 
physics help me
A spring is hung from the ceiling. A 0.300 kg block is then attached to the free end of the spring. When released from rest, the block drops 0.170 m before momentarily coming to rest. (a) What is the spring constant of the spring? (b) Find the angular
asked by steve 
help me physics
The femur is a bone in the leg whose minium crosssectional area is about 3.60 E4 m2. A compressional force in excess of 6.90 E4 N will fracture this bone. (a) Find the maximum stress that this bone can withstand. 1 N/m2 (b) What is the strain that exists
asked by william 
physics
A novice skier, starting from rest, slides down a frictionless 33.0° incline whose vertical height is 127 m. How fast is she going when she reaches the bottom?
asked by carol 
physics
A cowboy at a ranch fills a water trough that is 1.1 m long, 62 cm wide, and 48 cm deep. He uses a hose having a diameter of 2.4 cm, and the water emerges from the hose at 2.4 m/s. How long does it take the cowboy to fill the trough? Answer in units of s.
asked by Jon 
chemistry
if you mixed 7 grams of iodine pentafloride with 2 grams of water which substance would be the limiting reactant?
asked by ty 
social studies
write a pamplet against the government of charles 1 that you imagine walter prynne might have written
asked by navdeep 
7grade math
using ratio 1:2 find the perimeter of rectangle that has a width of 6 inches and a length of 8 inches? need answer asap
asked by sandra 
chemistry
how many equivalents of sulfuric acid are in 20mL of 0.35 N H2SO4 solution? How many grams?
asked by Dricka 
Physics
A cyclist intends to cycle up a 7.5 degree hill whose vertical height is 170 m. Assuming the mass of bicycle plus cyclist is 95 kg, calculate how much work must be done against gravity. If each complete revolution of the pedals moves the bike 5.6 m along
asked by Linda 
Physics
A 21.0 kg child descends a slide 3.4 m high and reaches the bottom with a speed of 2.0 m/s. How much thermal energy due to friction was generated in this process?
asked by Linda 
Calculus
The limit from x> infinity of x^(3/x) i keep getting 3/infinity, which is infinity and this answer is incorrect.
asked by Adam 
Calculus
First make a substitution and then use integration by parts to evaluate. The integral of (x^9)(cos(x^5))dx What do you substitute first? I do not understand what they are asking for. Please help. thanks!
asked by Adam 
Calculus
Evaluate. The integral of (e^5x)(sin6x)dx
asked by Kristina 
math
Use the formulas for lowering powers to rewrite the expression in terms of the first power of cosine. sin^6(x) Answer=__________ ~Thank you.
asked by Shaun 
Maths
I'm after understanding more than an answer but an answer would be greatly appreciated. The question reads as "On the answer sheet for this question is shown an xy graph of the function [y(x)=x^2cos(3x)] Add to that same picture a rough sketch of the
asked by Jack 
chemistry
Use the thermochemical equations: 1/2 H2(g)+1/2 I2(g) ...............> HI(g) delta H = 1.1 k cal 1/2 H2(g).......> H2 (g) delta H = 104.2 k cal 1/2 I2 (g)..............> I (g) delta H = +18.1 k cal To present for the formation of hydrogen iodide gas from
asked by miss 
computer science
. Investigate the values of and such that the system of equations x + y + z = 6 x + 2y + 3z = 10 x + 2y + z = , may have (i) Unique solution
asked by sonia 
Physics
Solve the equation. 2 sinx = 0.8. 0< x < 360 degrees
asked by Heena 
Business Organization
What is the difference between a manager and a leader;
asked by Maryan 
physics
the small body of mass m slides on a frictionless loop the height above the bottom path of the circular loop is three times the radius of the circular loop.DETERMINE THE VELOCITY OF THE MASS BEFORE IT REACHES TH BOTTOM PATH OF THE LOOP
asked by ERIC 
Business Organization
What are the main or different types of a leader or leadership; Discuss their main functions and state whether anyone can become a leader.
asked by Maryan 
Commercial Law
What are the main requirements for a valid contract;
asked by Maryan 
English
i need an urgen help with my eulogy can someone please help me, please. i cant do some parts properly,and am not sure of some parts. so really need help. This is a hard moment. It’s the moment we must say farewell to the to the brave young man, Callum
asked by Trace 
Commercial Law
What is the difference between an offer and an invitation to treat and why is the difference important;
asked by Maryan 
Economics
Using a diagram, analyse the production possibilities frontier.
asked by Maryan 
Economics
Using examples explain how the Production Possibilities Frontier illustrates the main economic concepts. You should include a detailed explanation of these economic concepts.
asked by Maryan 
physics
a proton starting from rest falls through a potential difference of 10^6v what is its final KE and final velocity?
asked by gull 
math
How would I setup the equation for the perimeter and area of a similar (6inch width, and 8 inch length)rectangle that is increased by a ratio of 1:n?
asked by sandra 
English
(Question) Chickens include chicks, hens, and roosters. Then, what includs, cows, bulls, and calves?
asked by rfvv 
material science
how can we achive nano size in tio2 powders
asked by prade 
English
"A friend in need is a friend indeed!" is the life lesson that my father taught me. I learned from him that we should try hard to help others. He always wanted me to be a good friend who can help friends in need. (Is this passage grammatical? Would you
asked by rfvv 
chemistry
what happens when iron is reacted with iodine
asked by syed 
English
1. Ask a question at a time. (What are other expressions which are similar to 'at a time'?) 2. John is in his room at the moment. (What other expressions are similar to 'at the moment'?)
asked by rfvv 
physics
A rocket is launched at an angle of 56.0° above the horizontal with an initial speed of 101 m/s. The rocket moves for 3.00 s along its initial line of motion with an acceleration of 29.0 m/s2. At this time, its engines fail and the rocket proceeds to move
asked by kayla 
physics
A rocket is launched at an angle of 56.0° above the horizontal with an initial speed of 101 m/s. The rocket moves for 3.00 s along its initial line of motion with an acceleration of 29.0 m/s2. At this time, its engines fail and the rocket proceeds to move
asked by kayla 
Statistics
Assume a population of any 4 numbers(suppose: 4,8,15,19). Select a random sample of size 2 with replacement from the population. List all the possible samples and their corresponding values of x̄ “xbar” and then find the probability distribution of
asked by Ali 
english grammar
"stop the accident" The Children are doing something wrong in each of these places. predict and describe what should they done instead? Jane and fred are running round the corner. and crash to each other. what should they do?
asked by ricky chieng 
Math
Using Netwon Law of Cool, the graph of T(t)=S+(T subscript S)e^kt approaches a horizontal asymptote.What does the asymtote describe? a) intial temperature of the heated object b) temperature of the surrounding environment c) the difference in the
asked by Frank 
cmo155
Students are often confused about the use of the words good and well in their writing. Write a 100word passage to Susan Anker, the author of the course’s textbook, in which you describe five details from her book that are good and five details about the
asked by brad 
english
Erica P. com/155interest rates • In a total of 200 words, write two paragraphs with about how interest rates affect our purchasing decisions. • Identify the topic sentence in each by underlining it. I need to know if I underlined all of the topic
asked by erica 
Chemistry
If the relative humidity of the air is 45% and its temperature is 23 degrees C, how many molecules of water are present in a room measureing 14m by 9m by 8.6m
asked by William Crook 
ENGLISH
WHAT IS CENSORSHIP AND RESEARCH PAPER
asked by jopse 
physical
give brief explanation of the origin of both football and soccer
asked by mildred 
physics help
The femur is a bone in the leg whose minimum crosssectional area is about 3.60 104 m2. A compressional force in excess of 6.90 104 N will fracture this bone. (a) Find the maximum stress that this bone can withstand. (b) What is the strain that exists
asked by yoni 
confidentiality of health information
comp;are and contrast contributory negligence with comparative negligence
asked by jan 
AlgebraPlease check
Write y = 10^(x) as a logarithmic function Choices are log(x)10 = y log(y)x = 10 log(10)y = x log(x)y = 10 I think it is log (10)y = x
asked by Annie 
vb programing
I need help to create a project for vb auto center from Programming in Visual Basic 2008 Chapter 11 pg 468. Write a project to store vehicle information including model, manufacturer, year, and VIN number. Create a second project that load the data from
asked by Geri 
math
if i invested $1000.00 at 5% per year for the next 20years how much will i have
asked by lilly 
english
Free verse is poetry that has no rhythm true?
asked by danny 
english
Poetry that is not artistic in form or meaning is didactic.
asked by danny 
Chemistry
A laser emitting light with a wavelength of 480 nm is directed toward the surface of rubidium metal. The work function for rubidium metal is 2.16 eV (1 eV = 1.602 x 1019 J)
asked by Charles 
math
A snail begins climbing from the bottom of a well that is 10 feet deep. Each day it climbs 3 feet, and each night it slips down 2 feet. How many days does it take the snail to reach the top of the well?
asked by Jansi 
Chemistry
If 0.117 mol of argon gas occupies 2.15 L at 725 mmHg, what is the temperature in degrees Celsius? please explain step by step. Thank you so much
asked by Jessica 
maths
the thickness of a metallic tube is 1 cm and the inner diameter of tube is 12 cm . Find the weight of 1 meter tube long, if the density of metal be 7.8 gram/cm^3
asked by sona 
Economics
Do government statisticians calculate GDP by simply adding up the total sales of all business firms in one year? Explain..
asked by sammie 
world issues amazon deforestation
Hi. I was assigned an essay that I have to get done by 2morrow. It is about Amazon rainforest deforestation. I have to sum everything up into 3 paragraphs. 1st paragraph tell what's happening here; I already did this. 2nd & 3rd paragraphs describe how
asked by Abby 
chemistry
The volume of a flask is 300.0 mL, the pressure in the room is 770 mmHg and the temperature is 22.0°C. How many moles of CO2 are in the flask?
asked by Anonymous 
chemisrty
as a system increases in volume it absorbs 52.5 j of energy in the form of heat form the surroundings. the piston is working against a pressure of 5.00 atm. The final volume of the system is 58,0 L. What is the initial volume of the system if the internal
asked by Jay 
Trig
Simplify: (cosx + cos2x + cos3x + cos4x + cos5x + cos6x) / (sinx + sin2x + sin3x + sin4x + sin5x + sin6x) into a single Cotangent function. Using the sumtoproducts, I was able to get remove some of the addition in attempts to get full multiplication, but
asked by Jeff 
maths
kanyadoon express runs between dehradun and kanyakumari. for up & down train journey, kanyadoon express starts at 0900 hours everyday at both ends and reaches the destination at 0930 hours after three days. rahul travelled by kanyadoon express from
asked by sona 
Physics
Question contains pictures: h t t p : / / g o o . g l / M H k y 1 (delete the spaces between the characters for the URL)
asked by Phillip 
statistics
the number of vehicle passing through an intersection during each 15minute period was recorded. the results are shown below. construct a frequency distribution (and a relative frequency distribution) for the vehicles passing through the intersection in a
asked by Anonymous 
statistics
A random variable X has a Gamma distribution with (alpha = a, beta = b). Show that P(X > 2ab) < (2/e)^a. hint: X > c is equivalent to e^Xt > e^ct
asked by Daniel M C 
maths
the thickness of a metallic tube is 1 cm and the inner diameter of tube is 12 cm . Find the weight of 1 meter tube long, if the density of metal be 7.8 gram/cm^3
asked by sona 
N/A
In the domains od development, why is it important to consider each domain in the study of adult development?
asked by Gloria 
ENGLISH
I need to know if MY SENTENCES focus on one key point, The topic sentence relates to the paragraph as a whole, The content is comprehensive, accurate, and effective, Major points are stated clearly; are supported by specific details, examples, or analysis;
asked by erica 
physics
A ray of light passes from air into water. The incident angle is 30o. Find the index of refraction of water if the angle of refraction is 22o. Ans. 1.333
asked by Yesenia 
chem
let's say that an average egg has a mass of 48 g. What mass would a mole of eggs have?
asked by bob 
physics
In the latest Indian Jones film, Indy is supposed to throw a grenade from his car, which is going 79.0 km/h, to his enemy's car, which is going 102 km/h. The enemy's car is 14.3 m in front of the Indy's when he lets go of the grenade. If Indy throws the
asked by bobjahng2 
Physics  momentum
Two hockey pucks approach each other as shown in the figure below. Puck 1 has an initial speed of 22 m/s, and puck 2 has an initial speed of 14 m/s. They collide and stick together. Find the components along x and y of the initial velocities of both
asked by J Velji 
physics
How far from the origin is the puck after 5 seconds (m)? Since I cant post internet sites, The vx graph starts at the origin and has a slope of +8. The vy graph has a slope of 0 and starts at 30. The y axis is in cm/s and I am looking for total distance in
asked by bobjahng2 
physics
Two 2.3 kg balls are attached to the ends of a thin rod of negligible mass, 65 cm in length. The rod is free to rotate in a vertical plane about a horizontal axis through its center. With the rod initially horizontal as shown, a 44 gm wad of wet putty
asked by Putty wad 
elc
Select the item that does not belong. a) Amino acid b) Carbon c) Heredity d) Nucleic acid e) Controls the cell activities
asked by john 
calculus
A car braked at a constant deceleration of 45 ft / s2, producing a skid mark measuring 115 feet before coming to a stop. How fast was the car travelling when the brakes were first applied?
asked by Joey 
Managerial Economics
Suppose the two rival office supply companies Office Depot and Staples both adopt price matching policies. If consumers can find lower advertised prices on any items they sell, then Office Depot and Staples guarantee they will match the lower prices.
asked by Dede 
Managerial Economics
Recently one of the nation’s largest consumer electronics retailers began a nationwide television advertising campaign kicking off its “Take It Home Today” program, which is designed to encourage electronics consumers to buy today rather than
asked by Dede 
physics
You are watching an archery tournament when you start wondering how fast an arrow is shot from the bow. Remembering your physics, you ask one of the archers to shoot an arrow parallel to the ground. Unfortunately the archer stands on an elevated platform
asked by bobjahng2 
english
who does buck replace as a leader?
asked by paul white 
business information systems
list the alternative methods and tools for system development. How do they differ from SDLC?
asked by shannon 
4th grade algebra
What is 16  10  2  3 = ? What is 8  2  2  2 = ? What is 10  3  3  4 = ? What is 8  5  5  5 = ? What is 7  7  7  7 = ? What is 12  15  10  8 = ? What is 3  7  4  2 = ? What is 9  3  6  5 = ? What is 11  9  6  6 = ? What is 6  5 
asked by Judy 
math
5/6 + 1 2/3 divided by 8/9 help!
asked by Kory 
english
In the story Call of the Wild.Why did "Black" Burton punch John Thorton?
asked by paul white 
math
the sum of 3 consecutive integers is the same value as twice the greatest of the integers. Find the 3 integers.
asked by Kory 
Chemistry
I just have a quick question for you. Do I use Charles' Law to solve the following problem, if not, how should I approach this? If a 5.0 sample of a gas undergoes an increase in temperature under constant pressure,what is a possible new volume? Thanks for
asked by Cliff 
physics
a 1.10 x 10 cubed kg car accelerates from rest for a time period of 5.0 sec. The magnitude of the acceleration is 4.60 m/s squared. determine the average power generated by the force that accelerates the vehicle
asked by Derick 
math
carter jogs around a rectangular park that is 3/5 mi long and .25mi wide. How many miles will he travel if he jogs 5 times around?
asked by Kory 
consumer math
If you used 648 KWH and the power company charges 0.05954/KWH with a customer charge of $2.85, how much will you pay?
asked by Anonymous 
life science
Select the item the does not belong. a)Amino acid b)Carbon c)Heredity d)Nucleic acid e)Controls the cells activities
asked by john 
Psychology
In the 3 domains of development, why is it important to consider each domain in the study of adult development?
asked by Gloria 
math
6(3+6x)4=230
asked by dawn 
Statistics/Math Please Help
The company offers two types of sales: 1. Internet sales; 2. Store sales. The marketing research manager believes that the Internet sales are more than 10% higher than store sales. The null hypothesis would be: A. Pinternet–Pstore >.10 B.
asked by Todd 
4th grade algebra
7  7  7  7 = ? 12  15  10  8 = ? 3  7  4  2 = ? 11  9  6  6 = ? 6  5  4  2 = ? 8  5  5  5 = ? 12  7  5  4 = ? 13  3  6  1 = ? 16  10  2  3 = ? 8  2  2  2 = ? I am not understanding how to help figure these problems out? I
asked by Judy 
organic chem
convert butane to 3pentanol using any reagents and organometalics.
asked by josh 
physic
A gymnast of mass 68.0 {\rm kg} hangs from a vertical rope attached to the ceiling. You can ignore the weight of the rope and assume that the rope does not stretch. Use the value 9.81 {\rm m/s^2} for the acceleration of gravity.
asked by mas 
heatlh care
You're The New Director Of A Hospital Health Information Management Department. The Chief Financial Officer Has Hired You For Your Expertise In Health Care Reimbursement And Needs To Know How Your Department can help with reimbursement.list the most
asked by Anonymous 
business ethics
CONFLICT OF INTEREST Big Company is a large manufacturer of healthcare products that is under fire from the government to lower costs. Big Company has an excellent reputation and is widely acknowledged as one of the best managed companies in the country.
asked by shannon 
Journalism
How did the Indian education movement affect young Native Americans?
asked by Attalah:) 
English
what news of julilet does Romeos servant Balthasar bring?
asked by Jaz 
math
Let π denote the proportion of grocery store customers that use the store's club card. For a large sample z test of H0: π = .5 versus Ha: π > .5, find the Pvalue associated with each of the given below values of the test statistic.
asked by Jennifer 
algebra 1
8x(2x+7)=23
asked by Cynthia 
algebra 1
8x(2x+7)=23I am completely drawing a blank as to how I am suppose to solve this. Can someone offer the first step?
asked by Cynthia 
Qestion bout WH
how can i get a better gradfe wen i cant remember all the stuff only bits and pieces
asked by Angel 
statistics
14) You wish to compare the average GPA of students from one department to another. It is assumed that the distributions of GPA in both departments are normally distributed and that the overall standard deviation of GPA is the same in both departments. If
asked by ronaldo 
9th grade algebra math hw, help?(:
The table below shows the cost of renting a bike for a given amount of time, find the rate of change in cost with respect to time. Table: Time: 1.75, 4, 7. Cost( Dollars)4.375, 10, 17.5 Could one of the tutors please explain to me how to this? Thanks :)
asked by Allyson 
Computer ScienceJavascript
Can you check my code and tell me why the prompts are not showing up on the webpage: Homework 8 I like the color purple.
asked by Anonymous 
Chemistry
A student did the Synthesis of Salicylic Acid experiment starting with 3.89 g of methyl salicylate (C8H8O3) and using 40 mL of 6.0 M NaOH. To evaluate her success she needs to determine the limiting reagent. The reaction goes as follows: C8H8O3 + H2O ==>
asked by Lena 
math
Herman is making a small triangular table. If two of the sides will measure about 25 inches each, how many inches should the longest side (c) measure? Use the appropriate formula and round your answer to the nearest tenth. I don't know how to do this cuz
asked by Andrew 
Chemistry
student did the Synthesis of Salicylic Acid experiment using 3.93 g of methyl salicylate. This was the limiting reagent for his experiment. What is the theoretical yield of salicylic acid for his experiment? The theoretical yield is:
asked by Lena 
Abraham Lincoln's adult hood
I need information on Abraham Lincoln's adult hood. Can anyone give me a site that is not the wiki please? Thanks
asked by Erin 
5th math
If in a data set, all numbers appear just once, what is the mode?
asked by sueann 
english
Odipus Rex/Odipus the king Identify an important question about the text that the film had to address. Evaluate the question. Setting,costume, eliminating a speech or character, music..
asked by Anton 
Statistics
Suppose x is a uniform random variable with c=10 and d=90. Find the probability that a randomly selected observation exceeds26.
asked by Nancy 
English Literature
"But it was for I would have lived to have loved God better and longer time, that I might by the grace of that living have the more knowing and loving of God in the bless of heaven." Can you tell me what this quote from Julian of Norwich, "The book of
asked by Twin 
Science
Is sugar a covalent or ionic compound?
asked by Emily 
12th grade
The trem hierarchy refers to
asked by Sam 
12th grade
If you consider The Call of the Wild to be an allegory, which one of the following statements would be true?
asked by Anonymous 
statistics
The amount of time spent by North American adults watching television per day is normally distributed with a mean of 6 hours and a standard deviation of 1.5 hours. What is the probability that in a random sample of five North American adult at least two of
asked by Anonymous 
math 12
Find the number of seating arrangements of eight basketball players on a bench if either the one centre or both of the two forwards must sit at the end where the coach always sits.
asked by kitkat 
algebra 2
can you answer this question? a store is offering a discount of 30% on a suit. There is a sales tax of 6%. A) using a composition of function, represent this situatio in which the discount is taken before the sales tax is applied. B) using a composition of
asked by rachel 
math 12
The six members of the yearbook staff sit around the circular table in their office. How many different seating arrangements are there of this group of people?
asked by kitkat 
recreational math, music
How would you go about listing all of the integer ratios, preferably in a spreadsheet? I would like to have them listed in ascending order by the product of the numerator and the denominator, because in music, more "complex" ratios produce more dissonance.
asked by Gray 
Accelerated Physics
An 18.0 kg box is released on a 35.0° incline and accelerates down the incline at 0.269 m/s2. Find the friction force impeding its motion. How large is the coefficient of friction?
asked by Jamie 
11th grade
A 40kg skater is standing still in front of a wall. By pushing against the wall she propels herself backward with a velocity of 1.8 m/s. Her hands are in contact with the wall for 0.80 s. Ignore friction and wind resistance. Find the magnitude and
asked by fgh 
math
3/4 + 11/15 X 3/22 not sure if I use order of operations on this kind of problem???
asked by Kory 
9th grade algebra
A campsite charges 8$ per day, for the site rental and 4$ for parking. The total campsite charge C( in dollars) is given by C=8d+4 where d is the number of days that the site is rented. complete the table and graph the equation. *Table: D= 0 1 23 C(d)=
asked by Allyson 
math
find the missing number and landmarks for the set of numbers below
asked by Anonymous 
Science
With a magnetic field of 3.0 mT at the center of a 0.60 diameter loop, what is the current in the loop?
asked by Adrienne 
geometry
What does it mean by a line being unique?
asked by Alyssa 
English
1. What is your name? (Is 'what' a subject or a subjective complement?)
asked by rfvv 
chem
The rock in a lead ore deposit contains 84% PbS by mass. How many kilograms of the rock must be processed to obtain 1.1 kg of Pb? i need to know what the conversion factors look like and how u did it
asked by hannah 
Physics
A uniform beam of length 1.0 m and mass 16 kg is attached to a wall by a cable that makes an angle of 30 degrees with the end of the beam, as shown in the figure. The beam is free to pivot at the point where it attaches to the wall. What is the tension in
asked by Sam 
Physics
A sturdy wooden board, 4.0 meters long and with a mass of 32 kg, rests on two supports (labeled L and R) placed 1.2 m from each end as shown in the figure below. (a) Suppose that a man with a mass of 60 kg stands at the center of the board (point a). What
asked by Sam 
math
48 divided by 3796
asked by josh 
trig
sin(pi/3)
asked by Abby 
Chemistry
A 0.23 M solution of a weak acid has a pH of 2.89. What is the Ka(acid ionization constant)for this acid?
asked by Sarah 
math
a basketball player made 24 out of 75 free throws. what percent is this?
asked by Anonymous 
geometry
Twice the measure of the supplement of an angle is 39 degrees less than five times the complement of the angle. What is the measure of the angle? (Hint: Let 180 – x represent the supplement and 90 – x represent the complement.)
asked by saddie 
Ethics
What is speciesism? I have already defined it on google but could simply the definition?
asked by Hannah 
math
Name some different ways in which these numbers can be classified. 11,4.5,50,8,16,3/5,100,20,9,8.6,141/2
asked by Megan 
math (linear programing problem)
Please help this question is from my unit on linear programing and I'm having trouble completing it. A company manufactures bicycles and tricycles. The total number of frames the company manufactures cannot exceed 80 per month. It takes the company 1 hour
asked by Maddy 
Calculus
Knowing the time a ball hits the ground after throwing it up in the air and its intial postion, how would you calculate its initial velocity?
asked by John 
Math
A rectangular swimming pool is 7 meters longer then it is wide. It is surrounded by a concrete walkway 1.5 meters wide. The area of the walkway is 120 meters squared. What are the dimensions of the pool?
asked by Jim 
chemistry
Deserts are very hot during the day and cold at night. Why is there such a large nocturnal temperature drop
asked by Adrienne 
Chemistry
What causes the displays of lights called auroras?
asked by Adrienne 
Chemistry
Deserts are very hot during the day and cold at night. Why is there such a large nocturnal temperature drop?
asked by Adrienne 
Chemistry
On a day when the air temperature is 75°F, the relative humidity is measured to be 86%. How many degrees would the air temperature have to be lowered for the relative humidity to be 100%?
asked by Adrienne 
8th grade
(18  (4))divide (11) (4) + 2
asked by gavin 
math
waht is the percent and decimal of 9 out of 50
asked by T.L.C 
2nd grade
spatial thinking which number comes 10 after 76 on the 100 chart? a 77 b 85 c86 d 87
asked by rose 
English
1.Camels stamped and bellowed in annoyance when packs were put on them. 2.Aloe plants, which originated in Africa, are now widely available in the US. 3.As far as scientists can tell, there is no connection between these two events. 4.If you adjust the
asked by Chris 
4th grade math
31 X 19 in expanded algorithm
asked by bob 
math 12
Ryan reaches into his gym bag for a pair of running shoes. If there are seven different pairs of shoes loose in the bag, how many ways can he pick two shoes that do not match?
asked by kitkat 
algebra 2
Find the rule for the quadratic. The h =24ft. The pumpkin retuerns to the ground after 6 seconds. Hint: wat is the height when it hits the ground? Use h +vt16t^2
asked by Karen 
math 12
A man bought two vanilla ice cream cones, three chocolate cones, four strawberry cones and one pistachio cone for his ten children. In how many ways can he distribute the flavors among the children?
asked by kitkat 
french
Can you please check these thanks. Part 1: Complétez 12. On peut acheter des tickets de métro au  ou au . Answer 1: guichet Answer 2: un distributeur automatique 3. Il faut  son ticket dans le tourniquet. Answer: valider 4.
asked by miami 
math 12
A soap company will give away a million dollars to everyone who guesses the order into which they have arranged the letters of the word SUPERCLEANER. Each entry must be in a separate envelope. How much would it cost you in postage to submit all possible
asked by kitkat 
true/false US history
Please help, thanks :) Racial segregation in public accommodations was upheld by the Supreme Court as long as the separate accommodations were of "equal welfare". I know it's false but I'm not sure what the term is. A deep, long term economic downturn is
asked by anthony 
Computer Science
What mechanism would you implement in the process scheduler to automate the termination of a job that Is in a infinite loop?
asked by Shelly H 
crt/205
Letter to the editor: “I would like to express my feelings on the recent conflict between county supervisor Blanche Wilder and Murdock County Sheriff Al Peters over the county budget“I have listened to sheriffs’ radio broadcasts. Many times there
asked by judy 
Math
nick has 1 3/4 gallon of milk how many pints does nick have. I think it is 14.
asked by Melissa 
Physics
A 2.60kg block is attached to a horizontal spring that has a spring constant of 160. N/m. At the instant when the displacement of the spring from its unstrained length is 0.115 m, what is the acceleration a of the object?
asked by Kevin 
Calculus
Find the xcoordinates of all points on the graph of y=x^3  4x^2 + 5x at which the tangent line is horizontal.
asked by Drew 
math
I have the first few words:did you hear about the water polo player who... whats the rest?
asked by Eli 
English
1. He is my boss. (What is the meaning of 'boss'? My senior in a department or the president of a company?)
asked by rfvv 
Calculus
Find the xcoordinates of all points on the graph of y = x^3  4x^2 + 5x at which the tangent line is parallel to 2y  10x  7 = 0
asked by Drew 
college
What is the molarity of a 1.4% HCOOH solution
asked by Calli 
Chemistry
Identify the principle conjugate acid/base pair and calculate the ratio between them in a solution that is buffered to pH 9.00 and contains a. H2S b. ethylenediamine dihydrochloride c. H3AsO4 d. H2CO3
asked by SS 
English
Can you please check if my sentences are possible? Thank you 1)When she was born,the doctors noticed that she had a problem with her feet. 2)She was operated on her feet (?)/(She underwent an operation) and the doctors amputated her feet and part of her
asked by Franco 
math
Write the equation of the perpendicular bisector of the line segment AB with endpoints A(1,1) and B(7,5). Write your answer in slope intercept form.
asked by Marissa 
algebra
what is (9,7) with a slope of 3 be in pointslope form?
asked by sara 
English
I forgot to include a few other sentences on the comparatives of adverbs. 1) He lives the farthest from the school. He has the least money among us. He is the friendliest among my classmates. He has made the fewest mistakes. 2) He wears the most expensive
asked by Franco 
help
I'm trying to find old newspaper articles from the 1940's about the mergence of day care and nurseries but I cannot find any. Help please!v
asked by Anonymous 
math
rachel is ranked 72 out of 451 students. whats her class rank percentile?
asked by alex 
math
a quadrilateral with angles that mesure: 10x25, 10x, 3x to the second power, and 2x to the second power. solve for x.
asked by miguel 
Government
a report on two different ways that you, as a young citizen, can become active in politics that would help promote causes that you believe in.
asked by Anonymous 
math
a quadrilateral with angles that mesure: 10x25, 10x, 3x to the second power, and 2x to the second power. solve for x.
asked by miguel 
history
what was the duties of the pharaohs in the old kingdom
asked by abygail 
Memorial university,chemistry
What is the total number of sigma and pi bonds in the molecule {CH}_3{NCO}?
asked by Sneha 
english
i have to write an essay and this is the topic i chose: "Explain why you like or dislike something that has an effect on your life." i chose dislike: having no confident can i write about that or does it has to be a thing, an object? please help and thank
asked by unknown 
Math
Name 3 different ways in which these numbers can be classified. 11 4.5 50 8 16 3/5 100 20 9 8.6 14 1/2
asked by Megan 
7th grade health
how much energy you use when you workout?
asked by kyle 
math
Ryan reaches into his gym bag for a pair of running shoes. If there are seven different pairs of shoes loose in the bag, how many ways can he pick two shoes that do not match?
asked by kitkat 
math
The longest steel arch bridge is the new river gorge near fayetteville,west virginia. write an inequality that describes the length in feet ,1, of every other steel arch bridge. the new river gorge bridge is 1700 feet long.
asked by ali 
Biology
I need to make a food web based on the story "The Lorax" By Dr. Suess. It needs to include these characters: The Lorax The OnceLer The Barbaloots The Humming Fish The Swamme Swans The Truffula Trees The Grickle Grass Can you help me?
asked by Kelsie 
Language
Directions: circle the word that describes the subject of the sentence. The dance competition will be stiff. is the answer compitition?
asked by Cat 
Chemistry
How many milliliters of pure acetic acid (density = 1.05 g/mL) would be required to prepare 1.00 L of the solution?
asked by Devin 
true/false US History
A "tenant strike" occurs when labor refuses to work, but also refuses to leave its workplace to keep the company from using replacement workers. I put false and replaced it with sitdown strike. Before he left office, Eisenhower warned against the
asked by anthony 
algebra
Ryan Left The science Museum and drove south Gabriella left three hours later driving 42 km/h faster in an effort to catch up to him . after two hours Gabriella finally caught up find ryans average speed
asked by Evee 
history
how did the indian reeducation movement affect young Native Americans?
asked by cierra 
statistics
It is thought that prehistoric Indians did not take their best tools, pottery, and household items when they visited higher elevations for their summer camps. It is hypothesized that archaeological sites tend to lose their cultural identity and specific
asked by jaipreet 
Language
Directions: Circle the word that describes the subject of a sentence. Our teams are great. Would it be teams?
asked by Dog 
Chemistry
Write skeleton equations for these reactions. a. hydrogen iodide(g) > hydrogen(g) + iodine(g) b. aluminum(s)+iodine(s)> aluminum iodide(s) c. iron(II) oxide(s) + oxygen(g) > iron(III) oxide(s)
asked by Lola 
algebra
how do you graph a fraction?
asked by Elizabeth 
AccountingJournal Entry
Sales for the month were $650,000, 85% of sales were on account. Gross margin is 40% of sales.
asked by Thara 
algebra
2x + 4 = 9  y
asked by shan 
oomposition
how do I write an introduction on the eassy on The Inheritance of tools by Scott Russell Sander answering the points: consider how things serve as vessels for generation. Explore larger issues of memory and family connection. paper should base on finding
asked by Doran 
math
A square with an top as 100cm and a side with 1 m A= b x h A= 100 x1 A= 100 cm2 or m2?
asked by Dani 
math
Sevnetyeight players entered a single elimination tennis tournament.How many matches were played to determine the overall champ? please help me...and if u get the answer can you explain how you got it with a rule or a pattern
asked by Lesly 
Math
If B is the midpoint of line AC, D is the midpoint of line CE, and line AB is congruent to line DE, then AE equals 4AB
asked by Tara 
math
what is 1/4 plus 1/8 in simplest form.
asked by courtney smithey 
Chemistry
Write skeleton equations for these reactions. a. butane(l) + oxygen (g) > carbon dioxide(g) + water(l). b. aluminum carbonate(s)> aluminum oxide(s) + carbon dioxide(g) c. silver nitrate(aq) + sodium sulfide(aq) > silver sulfide(s) + sodium
asked by Lily 
math
If you borrow $1000.00 at 6% for one year, how much interest will you owe. how much will you have to pay back
asked by carolyn 
english
is shy is another word for lack of selfconfidence are they the same or different cause i think im getting mix up here please help and thank you
asked by unknown 
Physics
The drawing shows a block (m = 1.5 kg) and a spring (k = 300 N/m) on a frictionless incline. The spring is compressed by x0 = 0.34 m relative to its unstrained position at x = 0 m and then released. What is the speed of the block when the spring is still
asked by Katha Mayur 
chem 101
how can a calorimeter constant be determined experimentally?
asked by KT 
physics
With what minimum speed must Fran leave the ground in order to lift her center of mass 1.90 m and cross the bar with a speed of 0.80 m/s?
asked by yo yo 
math
If you borrow $500.00 at 4.5% for a nine month period, what is the interest amount and how much must you pay back
asked by carolyn 
MATH HELP ME 1st
5+0=5 tell which property i think it is assosciotive
asked by lily 
chem/some1 check my work plz.
2NH3(g)+3CuO(s)=N2(g)+3Cu(s)+3H2O(g) if 18.1grams of ammonia reacts with 90.4 grams of copper(II) oxide, which is the limitting reagent?? what is the theorectical yield of nitrogen gasd? if 8.52 g of N2 are formed, what is the % yield of nitrogn gas??
asked by julia 
language
replacing with possessove nouns ex the sister Miguel woke up him. Miguel's sister woke up him
asked by Stephanie 
english
does being shy effects my career path, communication, and... what to know does it effect my life i think it effect my life just want to make sure and aslo i need one more on how being shy can effect my life cause i need three and i got only two sorry for
asked by unknown 
Statistics/Math Please Help
The company offers two types of sales: 1. Internet sales; 2. Store sales. The marketing research manager believes that the Internet sales are more than 10% higher than store sales. The null hypothesis would be: A. Pinternet–Pstore >.10 B.
asked by Todd 
Algebra
Write the expression as a complex number in standard form. (23i)(65i)
asked by Lily 
vocabulary
homophone sentence
asked by Anonymous 
math
what is the x and y intercept of 4x+7y=8?
asked by erin 
math
Sevnetyeight players entered a single elimination tennis tournament.How many matches were played to determine the overall champ? please help me...and if u get the answer can you explain how you got it with a rule or a pattern
asked by Evelyn 
gr.12 data mangement
1.) How many bridge hands contain each of the following patterns: a.) Eight Spades and five Diamonds? b.) An 8card suit and a 5card suit? (this problem has to do with combination)
asked by lostt :( 
Science
why is sugar more soluble in water than in canola oil?
asked by Petra Q. 
Math
a piggy bank contains $8.80 in quarters, dimes and nickles. there are two more than five times as many nickles as quarters, and four less than twice as many dimes as quarters. how may of each coin are there
asked by Grace 
Algebra
A coast guard helicopter receives a distress signal from a boat. the units (15,80) (55,38)represent miles. to the nearest minute, how long will it take the helicopter to reach the boat if the helicopter travels at an average speed of 75 miles per hour?
asked by Loren 
MATH HELP ME 1st
what property would 4*1=4 be
asked by lily 
Chemistry
How many half lives will it take for a sample of a radioactive isotope containing 20000 radioactive nuclei to decay to 2000 radioactive nuclei
asked by Dianne 
calculus
With waht speed must a baseball be thrown upward from the ground in order to reach the top of the Washington Monment? (The top of the monument is 55o ft)
asked by Anonymous 
calculus
With waht speed must a baseball be thrown upward from the ground in order to reach the top of the Washington Monment? (The top of the monument is 55o ft)
asked by Anonymous 
Algebra
solve the equation by completing the square 3x^212x+1=0
asked by Lily 
statistics
The population mean and standard deviation are given. Find the required probability and determine whether the given sample mean would be considered unusual. For a sample of n=36, find the probability of a sample mean being less than 12.2 if M=12 and O=0.95
asked by Anonymous 
algebra
what did the baby porcupine say when it backed into a cactus?
asked by tina 
Accounting
A credit saleof $800.00 is made on April 25th, terms 2/10, n/30, on which return of $50.00 is granted on April 28th. What amount is received as payment in full on May 4th?
asked by Jenny 
data management
1.) How many bridge hands contain each of the following patterns: a.) Eight Spades and five Diamonds? b.) An 8card suit and a 5card suit? (this problem has to do with combination)
asked by Anonymous 
Chemistry
Magnesium has three naturally occurring isotopes: 24 Mg (23.985 amu) with 78.99% abundance, 25 Mg (24.986 amu) with 10.00% abundance, and a third with 11.01% abundance. Look up the atomic mass of magnesium, and then calculate the mass of the third isotope.
asked by Anonymous 
World History
what were the reasons rome fell? four facts about each :]
asked by Janet 
social studies
i need to find some info on kyoto how have people adapted to this environment? has the physical landscape/environment influenced human life in this place? how have humans modified this environment from its natural state can you send me the links where you
asked by anonymousss 
Chemistry
Write skeleton equations for these reactions. a. hydrogen iodide(g) > hydrogen(g) + iodine(g) b. aluminum(s)+iodine(s)> aluminum iodide(s) c. iron(II) oxide(s) + oxygen(g) > iron(III) oxide(s)
asked by Lily 
science
linda drove 450km from Indianapolis to Milwaukee at 1:00p.m. the next day. She got tired on the trip, so she stopped in Chicago to rest overnight. She arrived in Chicago at2:30p.m. and left for Milwaukee at 11 a.m. the next day what was her average speed
asked by destiney 
Chemistry
Write skeleton equations for these reactions. a. butane(l) + oxygen (g) > carbon dioxide(g) + water(l). b. aluminum carbonate(s)> aluminum oxide(s) + carbon dioxide(g) c. silver nitrate(aq) + sodium sulfide(aq) > silver sulfide(s) + sodium
asked by Lexie 
Accounting
How do I calculate the future value of the following? $5,000 compounded annually at 12% for 2 years $5,000 compounded semiannually at 12% for 2 years $5,000 compounded quarterly at 12% for 2 years $5,000 compounded monthly at 12% for 2 years
asked by Katherine 
9th grade Science
the longest distance in a field and track event is the 10km run. the record holder for the women's 10km run is Wang Junxia of china. Assuming that she ran a distance of 10.0 km with an average f 5.644 m/s, what was her time?
asked by Sebas 
algebra
how to find scale factor of fractions also with fractions in them
asked by north oaks middle 
math
A= 0.5 m x 20 cm
asked by Dani 
Science 8
why is sugar more soluble in water than in canola oil???? in english please ive asked this question and it didn't make sense
asked by Petra Q. 
english
okay i have 2 out of 3 supporting ideas for my essay but i need 3 so i need 1 more here is mine "does being shy effects my education" please help and thank you
asked by unknown 
Math
How would you estimate using fractions to find the percentage of a number. For example: 28% of 48.
asked by Nicole 
4th grade
why is 7 times 8 not a number sentance
asked by peter 
Physics
The angular speed of a propeller on a boat increases with constant acceleration from 11 rad/s to 26 rad/s in 2.4 seconds. Through what angle did the propeller turn during this time?
asked by Courtney 
math 7th
need help in "using similar figures"
asked by Anonymous 
Physics
A 74kg canoeist stands in the middle of her 18kg canoe. The canoe is 3.0 m long, and the end that is closest to land is 2.5 m from the shore. The canoeist now walks toward the shore until she comes to the end of the canoe. calculate the distance from the
asked by Evab 
ethics
How much of a part does ethics play in the development of organizational culture? Is it a big, important part? Why or why not?
asked by Anonymous 
Circuts
A wyeconnected load consists of three impedances of 12+j3 ohms each. The line voltage driving the load is 208V. What is the phase voltage? What is the phase current? What is the apparent power delivered to the load? What is the power factor? What is the
asked by Mary 
Physics
A 1.5 kg basketball is thrown to the floor. At the moment it first hits the floor, the basketball has a velocity of 6 m/s directed 45° below the horizontal. In contact with the ball for 0.1 seconds, the floor exerts upon the ball a force of 135 N directed
asked by Brandy 
Physics
Imagine you've finished this academic year and gone home to enjoy your summer vacation. During one of your days of relaxation and nonacademic bliss, however, you realize you need to run a few errands. After stopping at the gas station where you fill the
asked by Need Help 
AP Calculus
Use differentials (or a linear approximation) to estimate (2.001)^5
asked by cel 
College Algebra
Give the rational number that is the exact value for each of the following: 14) Log(9)((∛(3)/(ã(27))=
asked by Y0gi 
College Algebra
Write each of the following as a single logarithm: 8) ((5log x)/4) + 4log y =
asked by Y0gi 
Physics
A ceiling fan is rotating at 0.70 rev/s. When turned off, it slows uniformly to a stop in 2.9 s. (a) How many revolutions does it make in this time? (b)Using the result from part (a), find the number of revolutions the fan must make for its speed to
asked by Karen 
College Algebra
Write each of the following as a single logarithm (log (x+3))/(3) = 1
asked by Y0gi 
College Algebra
Give the real solution set for each of the following: 42) log(6)(x^2+11) + log(6)x = 1 + log (6)(x^2+1)
asked by Y0gi 
science
how far will 350 j raise a block weighing 7 N
asked by Myriel 
Trigonometry
How do you solve the equation 3x^2 + 3 = 0
asked by Elizabeth 
Calculus
Use implicit differentiation to find an equation of the tangent line to the curve y^2 = x^3 (26 − x) at the point (1, 5).
asked by Caleb 
math
A= 100 cm x 1 m A= 100 cm x 100 cm A=10000 cm2?
asked by Dani 
Physics
Two blocks of the same mass are raised up a height of 3m from the ground. One is raised straight up and placed on a pedestal and the other is pushed up an incline with friction to get there. In which case, if either is work more necessary? Which block
asked by Anonymous 
chem/some1 check my work plz.
air bags actived when a severe impact causes a steel ball to compress a spring and electrically ignite a detonator cap. this causes NaN3 to decompose explosively according to the following reaction: 2NaN3(s)=2Na(s)+3N2(g) what mas of NaN3 must be reacted
asked by julia 
Calculus
Use implicit differentiation to find an equation of the tangent line to the curve y^2 = x^3 (26 − x) at the point (1, 5).
asked by Caleb 
ethics
Consider the following scenario: You are aware of a problem that is costing your company productivity. This problem is caused by a fellow employee who refuses to use current technology. This employee has asked you to keep the situation to yourself, since
asked by Anonymous 
math
How do areas of two parallelgrams compare when the dimensions of one are three times the demensions of the other?
asked by Dani 
Math
What is 13y2x1215y
asked by Jasmine 
Math
If the length of a square garden is five and seven eighths long, then what is the perimeter?
asked by Michael 
math 11
Please help this question is from my unit on linear programing and I'm having trouble completing it. A company manufactures bicycles and tricycles. The total number of frames the company manufactures cannot exceed 80 per month. It takes the company 1 hour
asked by Maddy 
science
Chemical weathering takes place fastest in a ____________________ and ____________________ climate.
asked by kayla 
chemistry
What would happen if 50 grams of carbon fully reacted to oxygen?
asked by christine 
chem/some1 check my work plz.
nitrogen gas contained in a cylinder with a volume of 5.0x10^2 mL @ a temp of 30C and pressure of 710 torr. The gas is then compresse to a volume of 25mL and the temp. is reaised to 820C. what is the new pressure of the nitrogen gas?? Pf=p1*v1*t1/Tf*Vf
asked by julia 
Chemistry
I'm having a hard time with a question predicting the reaction (if any) of 1,2dichloroethane and sodium iodide, sodium iodate, and sulfuric acid. Any suggestions? Thanks!
asked by Becky 
science
do you where i can find a answer sheet to chapter 9 weathering and erosion? because i really want to ace the next test and i don't know the right answers to it thnx
asked by kayla 
Chemistry
You bubble ammonia in sulfuric acid solution. What is the result? (hint: remember, you start from NH3 (g))
asked by Anonymous 
Social studies
The region covering the area from the appalachians to the rockies and from the gulf of mexico to the great lakes in the 1600's was called ?
asked by Melysa 
Chemistry
You mix HCl with Na2CO3; the result is not exactly a precipitation, but it is related. Explain.
asked by Anonymous 
geometry
what is 8x+4y=16 in slop intercept form?
asked by Rose 
English
1.The castanets, which were quite old, had been Melanie's grandmother's. 2.You were always singing when you were little. 3.Three Indian elephants patiently towed the logs that had just been cut. 4.Stay with us as long as you want. 5.The Forbidden City,
asked by Chris 
chemistry
You want to measure the CaCo3 contents in chalk. To this end, you grind a piece of chalk, dissolve the slurry to make 10ml of solution and drive the carbonate out by adding 10 ml of 2M HCl. You titrate the remaining HCl back with 0.1M potassium hydroxide
asked by Anonymous 
science
What other applications can be used with MS Excel to exchange information and data?
asked by Paul 
11th grade
Three different weights are suspended from three different springs. Each spring has an elasticity coefficient of 18.5. The equation for the vertical displacement is y= 1.5cosine(t times the square root of k/m), where t is time, k is the elasticity
asked by Matt 
Calculus
Evaluate the integral: the integral of [5e^(2t)]/[1+4e^(2t)]dt. I used u sub and let u=e^2t and got 5/2arctan(e^2t)+C. But this answer is incorrect. Please help. Thanks
asked by Adam 
Chemistry
A 0.23 M solution of a weak acid has a pH of 2.89. What is the Ka(acid ionization constant)for this acid?
asked by Sarah 
math
A= 5 m x 200 cm A= 500 cm x 200 cm A= 100000 cm2?
asked by Dani 
geometry
what is 2x+6y=6 and 3/4x1/2y=1/8 in slope intercept form?
asked by Rose 
us history
what did the europeans and the africans traded
asked by treis 
9th grad algebra
how do you solve y=5x8 and 5y=2x+6 using elmination? Thank you, Raina
asked by Raina 
biology
compare and contrast karyotype studies and pedigrees using a venn diagram
asked by dustin 
Honors PRE CALCULUS
Three different weights are suspended from three different springs. Each spring has an elasticity coefficient of 18.5. The equation for the vertical displacement is y= 1.5cosine(t times the square root of k/m), where t is time, k is the elasticity
asked by Matt 
Honors PRE CALCULUS
Three different weights are suspended from three different springs. Each spring has an elasticity coefficient of 18.5. The equation for the vertical displacement is y= 1.5cosine(t times the square root of k/m), where t is time, k is the elasticity
asked by Matt 
science
what is the removal of small loose particles of rock by the wind hint 9 letters
asked by kayla 
weathering and erosion
what is the wearing away and removal of rock material hint 7 letters
asked by kayla 
chem/some1 check my work plz.
air bags actived when a severe impact causes a steel ball to compress a spring and electrically ignite a detonator cap. this causes NaN3 to decompose explosively according to the following reaction: 2NaN3(s)=2Na(s)+3N2(g) what mas of NaN3 must be reacted
asked by julia 
weathering and erosion
what is the flow of water over earths surface hint 6 letters
asked by kayla 
physics
A rope attaches a tire to an overhanging tree limb. A girl swinging on the tire has a centripetal acceleration of 3.0 m/s^2. If the length of the rope is 2.1 m, what is the girl's tangential speed?
asked by helmuth 
7th grade Math
Find the next three numbers in this sequence and explain the reasoning; 2/3, 2/5, 6/25, 18/125,...
asked by Rebekah 
college
Doug Corporation purchased Leslie Company's entire business for $3,200,000. The fair market value of Leslie's net identifiable assets is $2,900,000.
asked by tom 
weathering and erosion
sandblasting of rock by wind blown particles hint 8 letters
asked by kayla 
weathering and erosion
gravity causing rock or sediment to move downhill hint 12 letters
asked by kayla 
Calc
A 100 inch piece of wire is divided into 2 pieces and each piece is bent into a square. How should this be done in order of minimize the sum of the areas of the 2 squares? a) express the sum of the areas of the squares in terms of the lengths of x and y of
asked by katie 
Math
Find the measures of two supplementary angles if the difference of their measures is 56 degrees I know supplementary angles are the sum of the measure if two angles is 180 degrees but then what is the question asking?
asked by Dani 
Physics
A stone is thrown vertically upwards from the top of a tower 50.0m high with an intial velocity of 20.0m/s. (a) whats the maximum height the stone reaches? (b) Whats the time it takes to reach the maximim height? (c) What is the total distance it covers?
asked by Jess 
4th grade
I am a number between 75 and 150, my tens is three times my ones, my sum is 5 and my hundreds and ones are the same.
asked by Sam 
organic chemistry
What is the product of reaction of triphenylmethanol heated up with 40% HI in glacial acetic acid and then treated with sodium bisulfite?
asked by Chris 
Physics
A ball is thrown upwards on the moon with an initial speed of 35m/s. Calculate (a)the time taken to reach the maximum height. (b) the maximum height reached by the ball (c) Its velocity 3seconds after it has been thrown. (g=1.6ms^2)
asked by Jess 
11th grade
Solve for x:9x^249=0
asked by Sam 
physics
As a young boy swings a yoyo parallel to the ground and above his head, the yoyo has a centripetal acceleration of 250m/s^2. If the yoyo's string is 0.50 m long, what is the yoyo's tangential speed?
asked by helmuth 
soc101
Of the different forms of social structure described by Durkheim, Tonnies, and Lenski, which comes closest to matching your social setting? Use the following terms in your explanation: status, role, primary group, and secondary group.
asked by yolanda 
english
How can a noun be misused?
asked by Max 
Physics
A cylinder with a piston is filled with ideal gas. The gas temperature is held at 450 K. The cylinder is heated by an oven through a square metal rod connected between the oven and the cylinder. The rod has sides d = 2 cm and length L = 2.3 m. (a) If the
asked by Help 
Statistics
Assume the body temperature of healthy adults are normally distributed with a mean of 98.2 degrees F and a standard deviation of .62 degrees F. If you have a temperature of 99.0 what is your percentile score?
asked by Lisa 
physics
a 0.180 kg ball falls 2.5m. How much work does the force of gravity do on the ball?
asked by pete 
English
How is Hamlet a tragic hero? I have these points 1. tragic flaws 2. he suffered throughout the play 3. ??? I need one more..I can't think of anything... someone help please.
asked by Jessica 
Math
A= 10,560 ft x 2 mi
asked by Dani 
Physics
Intravenous infusions are often made under gravity. At what height should the bottle be placed so the liquid pressure is 700 mmH2O?
asked by Eden 
Math
The 8th grade class is taking a field trip to a concert. Your bus averages 40 mph in the heavy traffic driving to the concert and 60 mph returning home. The total travel time is 2.5 hours. How far away is the concert? How long did it take to get to the
asked by Lady 
physics
An undersea research chamber is spherical with an external diameter of 3.70 m. The mass of the chamber, when occupied, is 26000 kg. It is anchored to the sea bottom by a cable. What is the tension in the cable?
asked by Anon 
physics
What is the total force on the bottom of a swimming pool 22.0 m by 8.9 m whose uniform depth is 1.6 m? What is the absolute pressure on the bottom of a swimming pool? What will be the pressure against the side of the pool near the bottom?
asked by Cory 
physics
An antelope is at a distance of 20.0 m from a converging lens of focal length 32.0 cm. The lens forms an image of the animal. If the antelope runs towards the lens at a speed of 5.50 m/s, what is the speed with which the image moves? 1/q= 1/32cm1/2000cm
asked by flame 
English
We just got done reading Animal Farm, by George Orwell. I cant come up with enough facts for the following questions. How does Napoloen and the other pigs control the animals through fear and intimidation? so far i have by 1)by killing other animals right
asked by Maria 
math
The lcm of two #s is 60. one of the #s is 20. other # is even & has only two prime factors. what is the other number?
asked by bell 
chemistry
what are the names of the following compounds: BF3 N2O4 P4S7?
asked by Nona 
Chemistry
how would you sent up aluminum carbonate > aluminum oxide + carbon dioxide. im guessing AlCo3 > AlO3+Co2 but i don't think that's right
asked by Lexie 
Englsih
1.who told us about computers 2.since the club meets in the afternoon 3.through the puddles. 4.before we ate dinner 5.toward us Use each phrase and clause in sentence then underline word that phrase/clause modifies. 1.The man who told us about computers
asked by Hayley 
Math
5/9 (98.6 F  32)=
asked by Nick 
Chemistry
Calculate the mass of air in an airfilled tire and the mass of helium in a heliumfilled tire. What is the mass difference between the two? Assume that the volume of the tire is 857 , that it is filled with a total pressure of 125 psi, and that the
asked by Amanda 
college;math
what is 7x+7y=21 in its slope intercept form?
asked by nichole 
college algebra
if i throw a ball up into the air it will not end up being 800 meters, in the air if it leaves my hand at 5 meters
asked by marlene 
Math
This irregular shape has 2m,2m,2m, 3m, 4m, 7m _2m_ _2m_  2m__3m_    ________ 4 m 7 m how would I find the area if you can't tell how it is so you can't answer it I understand
asked by Dani 
calculus
Rice production requires both labor and capital investments in equipment and land. Suppose that if x dollars per acre aer invested in labor and y dollars per acre are investd in equpiment and land, then the yield P of rice per acre is given by the formula
asked by dawn 
Calculus 151
At what point in the first quadrant on the parabola y=4x^2 does the tangent line, together with the coordinate axis, determine a triangle of minimum area?
asked by Presleigh 
Chemistry
I'm having a hard time with a question predicting the reaction (if any) of 1,2dichloroethane and sodium iodide, sodium iodate, and sulfuric acid. Any suggestions? Thanks!
asked by Becky 
language arts
is the a verb adjective or adverb for the word politics
asked by Courtney 
english please
does being shy can effect my education? please help and thank you
asked by unknown 
Science
What are the formulas for the following compounds? Nitrogen triiodide iodine monochloride tetraiodine nonaoxide
asked by Nona 
math
_______7m______ \ /   \ 2.8m 2.8m /   \ /   n \ /   / \ n   / \   / \  / 2.8m 2.8m \  ____________ \  Find the area of each shaded region( n not shaded). Assume that all angles that appear to be right angles are right angles.
asked by Dani 
Physics
When a carpenter shuts off his circular saw, the 10.0inch diameter blade slows from 4665 rpm to zero in 2.00 s. What is the distance traveled by a point on the rim of the blade during the deceleration? (in ft). What is the magnitude of the net
asked by Courtney 
english
how do you misuse pronouns, verbs, adjectives, adverbs, prepositions and conjunctions. Im trying to help my little brother but im lost.
asked by Chase 
grade 10 social studies
why was italy the forst to use indo arabic numerals?
asked by ruth 
Physics
Near the equator, the Earth's magnetic field point almost horizontally to the north and has a magnitude of B = 50 micro T. What should be the magnitude and direction for the velocity of an electron if its weight is to be exactly balanced by the magnetic
asked by Ri 
history
were did king george III hire mecenaries from in order to fight the colonists
asked by alyson 
Quick Question
If the sleeve of your clothing catches on fire. Should you stop, drop and roll? Thanks.
asked by John 
Chemistry
Hi there, I am doing some data calculations for my lab, but I'm having some trouble. Given: Mass of ferrous ammonium sulfate=4.0g Mass of K3[Fe(C204)3] 3H20 =4.53g 1. Using the above mass of ferrous ammonium sulfate, calculate the theoretical yield of the
asked by David 
American History
I have to create a story about a patriot; what are some characteristics of one? Names, jobs, etc.
asked by Baylee 
math
While on his way to school, Norman saw that the cost of gasoline was $2.50 per gallon. Write a direct variation equation to describe the cost y of x gallons of gas. Then graph.
asked by David 
Physics
A brass plug is to be placed in a ring made of iron. At 20 degrees Celsius, the diameter of the plug is 8.737 cm and that of the inside of the ring is 8.723 cm. They must both be brought to what common temperature in order to fit? (ANSWER: 210 degrees
asked by Phil 
physics Hplease help!!!!
Suppose a cord is a heavy rope of mass 1.0 kg. Calculate the acceleration of each box and the tension at each end of the cord, using the freebody diagrams. Assume the cord doesn't sag. (m1 = 8.5 kg , m2 = 12.5 kg and FP = 36.0 N)
asked by kavi 
5th math
560.1/3 0.1s,1s, 10s ,100s. How I estimated? Answer___________. please! help me i'm total lost with this.. thanks!I knew it's division.
asked by pat 
Visual Basic 2008 Programming
Help! I'm not sure how to start or how calculate. This is the project. Using For Next Loops.  When $1000 is deposited at 5 percent simple interest, the amount grows by $50 each year. When money is invented at 5 percent compound interest, then the amount
asked by Lee 
calculus
Find the volume of the solid region which lies inside the sphere x^2 + y^2 + z^2 = 2 and outside the cone z^2 = x^2 + y^2 Set up the integral in rectangular, spherical and cylindrical coordinates and solve using the easiest way. Any help would be greatly
asked by Chad 
algbra
According to some students, what is the true purpose of homework
asked by daniel 
chemistry
Earth's population is about 6.5 billion. Suppose that every person on Earth participates in a process of counting identical particles at the rate of two particles per second. How many years would it take to count 6.0 x 10^23 particles? Assume that there
asked by Anonymous 
mat116
Graph the system of inequalities: x+3y or= 0
asked by Suzanne 
C++ Programming
Where would I find a great video resource for learning Visual C++ for beginners? I'm a newbie and I'm looking in some code for a project on sourceforge that i'm interested in. however, I don't know C++ so i don't know how to contribute to this program.
asked by David 
math
8q+62p=0 39=pq what is the solution or ordered pair
asked by maria 
math
Suppose you have enough material for 60 feet of fencing. With this material you want to build the largest rectangular enclosure possible. What are the dimensions of the largest possible enclosure, and what is its area?
asked by Anonymous 
chemistry
How many grams of Au2S can be obtained from 1.17 mol?
asked by kim k 
chemistry
Express the approximate density of carbon dioxide gas at 0 degrees C and 2.00 atm pressure in grams per liter.
asked by Anonymous 
adult education
Present, in journal form, the adjustments that would be made on July 31, 2011, the end of the fiscal year, for each of the following. 1. The supplies inventory on August 1, 2010 was $7,350. Supplies costing $20,150 were acquired during the year and charged
asked by Anonymous 
math
At Smart Middle School students are required to take 7 classes each grading period. At the end of each grading period a student is assigned a final grade (A, B, C, D or F) for each class for the grading period. A student’s overall grade point average for
asked by Anonymous 
math
On the last school day of the first grading period Michael learns his final grade for each class. If order is not important and we know he has earned at least 1 of each of the 5 letter grades, what is the total number of combinations of 7 final grades (one
asked by Anonymous 
English
Define Socialism. George Orwell doesnt think Socialism can work. WHY? How does he prove that it doesnt work by the way Animal farm ends?
asked by Maria 
AP Chemistry
Microwave ovens emit microwave radiation that is absorbed by water as heat. Suppose that the wavelength of the radiation that is 12.5 cm in an oven that has a power rating of 900 watts. (1W = 1 J/s) a) How many moles of photons are released per minute b)
asked by qwerty123 
Calculus II
(a) Use differentiation to find power series representation for f(x)=1/(1+x)^2 What is the radius of convergence? (b) Use part (a) to find a power series for f(x)=1/(1+x)^3 (c) Use part (b) to find a power series for f(x)=x^2/(1+x)^3 I found part (a) which
asked by Anonymous 
operating systems
what are to real life examples of the concepts dealock, starvation and race?
asked by Teddy C 
calc 151
two fences, 16 ft apart, are to be constructed so that the first fence is 2 ft high and the second fence is higher then the first. what is the length of the shortest pole that has one end on the ground, passes over the first fence, and then reaches the
asked by Presleigh 
accounting
Why is it important for an professional accoutant to understand the ethical trends discussed in this chapter? pg.25 question 14 Acc/260
asked by yonsha 
5th math
how do you estimated 7.842/6? than divide it. or 9.48/4 ? you have to estimated than divide it or what else? 3.84/6 should I make it turn to 39/6?
asked by pat 
english
in the miracle worker what does it mean when helen touches her own cheeks
asked by tyler 
chemistry
Earth's population is about 6.5 billion. Suppose that every person on Earth participates in a process of counting identical particles at the rate of two particles per second. How many years would it take to count 6.0 x 10^23 particles? Assume that there
asked by Anonymous 
math
let’s say you have 4x feet of fencing, where x is any number. What, in terms of x, should the dimensions of the largest rectangular enclosure be, whose perimeter is 4x feet? What would the area be?
asked by Anonymous 
geometry
find AB if BD is a median of triangle ABC
asked by sue 
Calculus
Evaluate the integral: the integral of [5e^(2t)]/[1+4e^(2t)]dt. I used u sub and let u=e^2t and got 5/2arctan(e^2t)+C. But this answer is incorrect. Please help. Thanks
asked by Adam 
world history
describe the role of education in athens and sparta
asked by Samantha