Questions Asked on
December 6, 2012

math,algerbra
find circumference and area of circle use 3.14 for unknown round to nearest tenths. 2) r=11.5 3)d=3.5 show steps to solve
asked by Anonymous 
algebra
the formula d=(square root)12,800+h^2 gives the distance d in kilometers to the horizon from a satellite h kilometers above Earth.Find the distance to the horizon to the horizon from a satellite 4200 km above Earth. Round to the nearest kilometer. PLEASE
asked by alexis 
Physics
A runaway truck lane heads uphill at 30◦ to the horizontal. If an out of control 15000 kg truck enters the lane going at 30 m/s , how far along the ramp does it go? The acceleration due to gravity is 10 m/s2.
asked by Anonymous 
Child day care
12. Which of the following is a factor that's very important to highquality child care, but not often covered in state licensing regulations? A. The group size B. A fire safety clearance C. The stafftochild ratio D. An annual visit by a representative
asked by Molly 
physics
A 5.7 kg block attached to a spring executes simple harmonic motion on a frictionless horizontal surface. At time t = 0 s, the block has a displacement of 0.70 m, a velocity of 0.80 m/s, and an acceleration of +2.7 m/s2. The amplitude of the motion is
asked by quaviz 
Chemistry
Concentration 15.8 mg/L Final Volume 100.0 mL What is the concentration of phosphate in the original lake water sample if the unknown lake water sample in the option has been diluted by taking 25.0 mL of lake water and diluting it to the indicated final
asked by Anon 
Chemistry
Suppose that absorbances of several solutions were measured at 545 nm. What is the frequency of this wavelength? What is the energy of this wavelength? (h=6.626 times 10^34J*S)
asked by Anon 
statistics
Answer the following: (A) Find the binomial probability P(x = 5), where n = 12 and p = 0.70. (B) Set up, without solving, the binomial probability P(x is at most 5) using probability notation. (C) How would you find the normal approximation to the binomial
asked by Huffette 
ACC305 Accounting for Decision Making
I am trying to get my research paper done, but I am having some trouble find the information that I am looking for on the company Bausch & Lomb. Here are the question that I am having trouble finding information for. 1. Who within the organization has the
asked by Yolanda 
mathsprobability
From the word HINDUSTAN ===== (a) In how many of these anagrams none of the vowels come together. (b) In how many of these anagrams do the vowels and the consonants occupy the same relative positions as in HINDUSTAN?
asked by Anamika 
physics
A 0.255kg rock is thrown with a speed of 12.0m/s.How much energy does it initally passess?
asked by Anonymous 
physics
A 1.56kg seagull dives through the air and gains 4495 of energy.What is the birds speed?
asked by Anonymous 
Geometry
Write the ifthen statement that follows from that pair of true statement. If the doorbell rings, then the dog barks.
asked by Leslie 
Geometry
What can you conclude from the given true statements? If there is a full moon tonight, the dog will howl. The moon is full tonight.
asked by Leslie 
statistics
An organization sends a random sample of surveys to 100,000 people and received 4,781 responses. A) Give a 95% confidence interval for the true proportion of those from their entire mailing list who may donate.
asked by Shane 
algebra
The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 165 and a variance of 9. The material is considered defective if the breaking strength is less than 156 pounds. What is the probability that a single,
asked by Anonymous 
statistics
The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 165 and a variance of 9. The material is considered defective if the breaking strength is less than 156 pounds. What is the probability that a single,
asked by Anonymous 
ssct
(phyics) question: calculate the final temperature of the water if 400grams of water at 80degress Celsius is poured into a 100grams pot at 30dgrees Celsius .
asked by arjet 
math
determine the radius of convergence of the power series: Σ(n=1 to inf) [(2^n * n! * x^n)/ n^n]
asked by bobby 
Microeconomics
1. Complete Table1 (Joseph Farms, Inc., Cost and Revenue Data), either as a Microsoft Excel spreadsheet, or as a Microsoft Word table. Assume that the price is $165 and the fixed costs are $125, at an output level of 1. Also assume that the data
asked by Sherry 
english
i need help writing an annotated bibliography, and cite the work. and i don't know how to get started on datamy topic is "why are so many black young mens killing each other. or should i write about sucide commited by yong people
asked by edna 
Math Statistics
If the range of a set of scores is 14 and the lowest score is 7, what is the highest score? Is it also 7 since 14 7 = 7? Just asking.
asked by Milen 
Chemistry
So my chem experiment asks us: What is the molarity of a 6.0 ppm solution (it's a 6.0 ppm chlorophyll solution, hexane is the solvent) Now, I've found a few ways to solve for it but they both give me different values. If it's possible, could you just tell
asked by Just One Stranger 
Linear Programming  Math
A small software company publishes computer games and educational and utility software. Their business strategy is to market a total of 36 new programs each year, at least four of these being games. The number of utility programs published is never more
asked by KIM 
Calculus
How many coefficients in the binomial series expansion of (1+x)^7 are divisible by 7?
asked by Kat 
Chem/ Calculating Lattice Energy, Vapor Pressure
How do you calculate lattice energy? I have to place the following in order of decreasing magnitude of lattice energy, but I don't know how to do it. KF MgS RbI Is there a formula or some simple way of knowing which has the greatest energy? 2. I also have
asked by Danya 
calculus
a bridge is 10 m. above a canal. A motorboat going 3 m/sec passes under the center of the bridge at the same instant that a woman walking 2 m/sec reaches that point. How rapidly are they separating 3 sec. later?
asked by Anonymous 
math
You have finally saved 10,000 and are ready to make your first investment. You have the three following alternatives for investing that money: 1) Captial cities ABC Inc. bonds with a par value of $1000 that pays an 8.75 percent on its par value in
asked by Anonymous 
pharmaceutical chemistry
when is a substance classified as pharmaceutical aid or necessity?PLEASE HELP ME :)THANKS A LOT.
asked by Ally 
mba
from a set of 1000 observations known to be normally distributed the mean is 534 cm and sd is 13.5 cm. how many observations are likely to exceed 561 cm, how many will be between 520.5 cm 547.5 cm, between what limits will the middle 50% of the
asked by subhash 
physics
Two particles A and B have velocities 3^i and v^j respectively (in m/s). (a) Find rBjA; the position of B relative to A for all t given that rBjA(t = 0) = 9^i + 6^j (in metres). (b) Find the value of v such that A and B collide. (c) If v = 1 m/s, nd the
asked by mary 
physics
A boy throws a ball at 5.5 m/s at an angle of 25.4° above the horizontal off a cliff which is 70.8 m high. What angle does the velocity of the ball make with the horizontal 0.78 s after the throw? (make the angle positive if the angle is above the
asked by vince 
Finance
An incomeproducing property is priced at $600,000 and is expected to generatethe following aftertax cash flows: Year 1: $42,000; Year 2: $44,000; Year 3:$45,000; Year 4: $50,000; and Year 5: $650,000. Would an investor with arequired aftertax rate of
asked by Francesca 
Physics
A mountaineer
asked by LALA 
trignometry
how to find the value of any standard angle ??? for example sin 60*??? without using table
asked by suraj 
science ocean
i need help. ms.sue espesually you.but give me wods that are for third graders.give me one paragragh.thanks
asked by bloom 
Surface area
if height and radius of frustum are h1 nad r1 respectively . if h2 and r2 are the heights and radius of the smaller base of frustum respectively and h2:h1 =1:2,then r2:r1 is equal to?
asked by sehgal 
French
Put in the correct order : nous , habitons. Voila , maison, ou ( where) , la
asked by Rim 
calculus
a lighthouse is 1 km from the shoreline and revolves at 10 pi radians a minute what is the speed of the light as it sweeps across the shore as it lights up at sand at 2 km from the light house
asked by Shelby 
Statistics
A quality control inspector wants to estimate the mean inside diameter of the washers produced by a certain machine. A preliminary sample indicates that the inside diameters have a standard deviation of 0.30 millimeters. What sample size does he need to
asked by Carolyn 
Physics  Heat Transfer
I am trying to calculate heat transfer between two objects. The units are as follows: m1: 100 g t1: 10 degrees C spec heat 1: 1.00 cal/g degree C m2: 200 g t2: 90 degrees C spec heat 2: 0.2 cal/gm degree C I set Q1 = Q2 m1 x spec heat 1 x delta T1 = m2 x
asked by Brenda 
Physics
A 700 KG horse is pulling a sled at a velocity of 3.5 m/s. If the horse's power output is 746 watts, the force exerted on the sled is?
asked by Monika 
Economics
Which of the following is a characteristic of a traditional economy? A. It encourages innovation and change. B. It is usually based on light industrial production. C. It has a high standard of living. D. It revolves around the family unit.
asked by Ella 
us government
A person in Michigan applying for a job in Alabama can expect not to be discriminated against because of the ___________ Clause.
asked by ricky 
Maths
If tom got 200 euro for his birthday. He spent 1.0 how much did he spend?
asked by chloe 
math
0.5 kg of tea was purchased at Rs 80 per kg.if it was sold at a gain of 10%.find its selling price
asked by words problem 
Chemistry
Consider the reaction 3CH_4(g)rightarrow C_3H_8(g)+ 2H_2(g). Calculate delta G at 298 K if the reaction mixture consists of 40atm of CH_4, 0.015atm of C_3H_8, and 2.3×10^−2atm of H_2.
asked by Josh G. 
Science
How can a cup of water have more thermal energy than one pitcher of water?
asked by Anonymous 
Physics
1.A mass is moving in uniform circular motion under the effects of a centripetal force. If the force is doubled and the radius is cut in half, by what factor will the speed change?
asked by Antone 
Chemisty
if the pressue within a tire changes from 1.35 atm to .95 atm the temperture will?
asked by Anonymous 
chemistry
The standard free energy of activation of a reaction A is 78.2 kJ mol–1 (18.7 kcal mol–1) at 298 K. Reaction B is ten million times faster than reaction A at the same temperature. The products of each reaction are 10.0 kJ mol–1 (2.39 kcal mol–1)
asked by Deidra 
Algebra 2 Rational Equations
What is the solution set of the equation? I know the answer is {1} I just don't know how to get there. X^216 x3  =  1 (x+4)(x+2) (x+2)
asked by Josh 
Chemistry
The fictitious compound, arrhenium fluoride ( ), reacts with itself to form a dimer with the formula Ah2F2 . The reaction is second order in AhF. The value of the rate constant is 8.591x103 M1s1. What is the initial rate of reaction in a reactor filled
asked by T 
physics
A nearsighted person has a far point located only 200 cm from his eyes. Determine the focal length of contact lenses that will enable him to see distant objects clearly. does anyone have any suggestion on how to tackle this problem?
asked by Alex 
ACC305 Accounting for Decision Making
I am trying to get my research paper done, but I am having some trouble find the information that I am looking for on the company Bausch & Lomb. Here are the question that I am having trouble finding information for. 1. Who within the organization has the
asked by Anonymous 
Physics
How much heat is required to melt 50 grams of ice heat it to its boiling point and then turn it into vapor
asked by Anothony 
Chemistry
A 50 gram sample of liquid water at 25 degrees C is mixed with 29 grams of water at 45 degrees C. The final temperature of the water is...?
asked by Bree 
geometry
Define projection of a line
asked by umesh 
English
(1)It was December 7, 1941. (2) The freighter Florentine, 320 miles northeast of the Hawaiian Island of Hilo was lumbering along at about 15 knots when the garbled message came in over the radio: (3) “Attack on Pearl Harbor; This is not a drill!”
asked by Sandia 
Chemistry
The combustion of 1 mole of CO according to the reaction CO(g) + ½O2(g) → CO2(g) + 67.6 kcal gives off how much heat?
asked by Monica 
spanish
using preterite describe a normal morning routine until i get to class
asked by marlene 
airthmetic progression
If m, n are natural numbers, m > n, sum of mth and nth term of an increasing AP is 2m and their product is m^2– n^2, then what is the (m+n)th term of the A.P.?
asked by sunny 
History
Compare and contrast Christianity and Islam.
asked by Britney 
diolouge
Can someone post or post a website of funny diolouges. The diolouge has to be at least 5 minutes long.
asked by Celest 
Physics
Andre at 60 kg, hits the trampoline after falling from 4 meters. The trampoline stretches 0.6 meters and andre stops in 0.3 seconds.What is the force constant of the trampoline?
asked by Jaden 
Physics
a child twirls a yoyo about in a horizontal circle. The yoyo has a mass of 0.20 kg and is attached to a string 0.8 m long. what is the velocity of the yoyo? thanks!
asked by Melissa 
Math
3. In the small country of Varia, a bill becomes law only if of the senators approve it. What percentage is ? (1 point) 53% 58% 68% 88% 4. Write the percent 96.55% as a decimal. (1 point) 9655 965.5 0.9655 9.655 5. Liam wants to buy a bicycle that costs
asked by Jane 
Science
1. __________ is one type of genetic engineering, in which a normal allele is placed into a virus. (1 point) A color blind test Down syndrome Gene therapy Polygenic inheritance 2. Human insulin can be produced by _______, which introduces DNA from one
asked by This Girl 
Mia Math
22miles/55miles=12miles/Mhours 48 30 45 22 i think its 22 Solve the proportion using cross products.
asked by Anonymous 
calculus
A ball is thrown vertically upwards from a height of 6 ft with an initial velocity of 60 ft per second. How high will the ball go? Note that the acceleration of the ball is given by a(t)= 32 feet per second per second.
asked by miranda 
chem
What is the pH of a 0.22 M solution of HClO4?
asked by val 
English
(1)It was December 7, 1941. (2) The freighter Florentine, 320 miles northeast of the Hawaiian Island of Hilo was lumbering along at about 15 knots when the garbled message came in over the radio: (3) “Attack on Pearl Harbor; This is not a drill!”
asked by Sandia 
chemistry
What concentration of the lead ion, Pb^{2+} , must be exceeded to precipitate PbCl2 from a solution that is 1.00 x 10^{2} M in the chloride ion, Cl^ ? Ksp for lead chloride is 1.17×10−5 .
asked by Anonymous 
MINE Math
16. Calculate the interest earned on a savings account with $800.00 that is invested at 5% annual simple interest for 5 years. (1 point)
asked by Milly 
Physics
What is the gravitational force between two runners standing 100 meters apart on a track, if their masses are 60 kg and 75 kg respectively?
asked by Justin 
MATHS
The population of town A increases from 1,346 to 1,500. In the same period, the population of town B increases from 1,546 to 1,800. a. Find the percent of increase in population for town A and for town B. b. Which town had the greater percent of increase?
asked by Lily 
statistic
A grain mill manufactures 100pound bags of flour for sale in restaurant supply warehouses. Historically, the weights of bags of flour manufactured at the mill were normally distributed with a mean of 100 pounds and a standard deviation of 15 pounds. a.
asked by anonymous 
analytical chem
What is the pH of a solution by dissolving 8.00 mmol of NaOAC in 200 mL of 0.100 m HOAC. (you need the pka for acetic acid)
asked by ak 
INTRODUCTION TO COMPUTERS
THE COMPUTER MOUSE IS USED TO
asked by datrel 
chemistry
A balloon is inflaed outdoors on a cold day in lowa at a temperature of 40 c to a volume of 2.00 l. If the pressure remains constant, what is the volume of the same balloon if taken indoors at a temperature of 25 c?
asked by Yolanda 
calculus
Use left endpoints and 9 rectangles to find the approximation of the area of the region between the graph of the function cos2x and the xaxis over the interval [0, pi/2] . Round your answer to four decimal places.
asked by Kayla 
Physics
16) A curve of radius 120 m is banked at an angle of 18°. At what speed can it be negotiated under icy conditions where friction is negligible? 2 m/s 12 m /s 20 m /s 5 m/s 11 m/s
asked by Jake 
College Physics
14) Given the following vectors, find the magnitude and direction: • A = 47 m and the angle is 0° • B = 62 m and the angle is 35° This is relative to the xaxis Magnitude: 401 m 140 m 104 m 0 m 503 m Direction: 20° 45° 55° 220° 90°
asked by Stephen 
This is Urgent Science
1. __________ is one type of genetic engineering, in which a normal allele is placed into a virus. (1 point) A color blind test Down syndrome Gene therapy Polygenic inheritance 2. Human insulin can be produced by _______, which introduces DNA from one
asked by This Girl 
Physics
How much work is done by the centripetal force (in this case, the friction between the tires and the road) on a 1200 kg car moving on a circular track of radius 50 meters at a constant speed of 31.4 m/s?
asked by Alainna 
statistics
Experience in investigating insurance claims shows that the average cost to process a claim is approximately normally distributed with a mean of $80. New costcutting measures were started and a sample of 25 claims was tested. The sample mean of the costs
asked by Aurora G 
business
Read the Thomas article, Squeeze Play, and discuss how long you think the emerging upstart airline carriers in Asia that are featured can continue their competitive role in the face of changing travel patterns and consumer behavior brought on by low cost
asked by Anonymous 
Physics, check my answer pls
4. All of the following are true about torque except: A. its units are Newtonmeters. B. it can only be produced by a force. C. torque is zero unless the force is pointed perpendicular to the moment arm. D. a force whose line of action passes through the
asked by Nev 
Math
9m7m5=17; m=11
asked by Cj ashton 
Physics
In the diagram below, how far from the end of the board can a 60 kg person walk before it will tip over? The mass of the board is 100 kg, and a 2meter section of its 6meter length hangs over the edge. Assume that the entire mass of the board acts at the
asked by Austin J 
physics
An airplane flies due south at 185 km/h relative to the air. There is a wind blowing at 68 km/h to the east relative to the ground. What are the plane's speed and direction relative to the ground?
asked by Danny 
PHYSICS  PLEASE HELP
Three objects are moving along a straight line as shown in the figure. Taking the positive direction to be to the right, what is the total momentum of this system? Pos > 5.00 m/s, 8.00 kg Neg 2.00 m/s, 3.00 kg A) 14 kg m/s B) +106 kg m/s C) +14 kg m/s
asked by Anonymous 
english
What is the correct answer I ____ on the couch last night. A. lie B. lay C. laid D. lain
asked by mom 
physics
Early skeptics of the idea of a rotating Earth said that the fast spin of Earth would throw people at the equator into space. The radius of Earth is about 6400 km. Show why this objection is wrong by determining the following information. (a) Calculate the
asked by Danny 
math
you borrow $1200 from a bank that bank charges 9.5% simple annual interest. after 15 months you pay back the loan. how much interest do you pay on the loan? what is the total amount that you pay the bank.
asked by jordan 
Math
Schoolwork: 7:35 a.m. until 11:15 a.m. What is the elapsed time? Explanation why your answer is correct:
asked by Bell 
Physical Science
A car with a mass of 1,400 kg is traveling at a speed of 40 m/s. What is its momentum
asked by Jazlynn 
Math
Lunch and Piano Practice: 11:15 a.m. until 12:50 p.m. What is the elapsed time? Explanation why your answer is correct:
asked by Bell 
Math
Schoolwork: 12:50 p.m. until 4:05 p.m. What is the elapsed time? Explanation why your answer is correct:
asked by Bell 
Math
Time with friends: 4:05 p.m. until 5:45 p.m. What is the elapsed time? Explanation why your answer is correct:
asked by Bell 
Math
Dinner: 5:45 p.m. until 6:10 p.m. What is the elapsed time? Explanation why your answer is correct:
asked by Bell 
math
Is it possible to have a figure an area of 9 square units and a perimeter of 30? If not, why? (PS I don't think it is possible.)
asked by Joey 
geometry
if in triangle JKL, JK= 9, KL = 11, and JL=12, and in triangle PQR, PQ=9, QR=11, and PR=11, explain why triangle JKL and triangle PQR are not congruent
asked by sherianna johnson 
English
This homework question was removed due to a copyright claim submitted by Connections Education.
asked by Anonymous 
Math
The window is 60 inches wide. What is the width of the window in feet explain how to get the answer
asked by Alinna 
Math
y/9 = 4 2/3 . Solve for Y . PLEASE HELP!
asked by Molly 
Math
1. Given a scale factor of 2, find the coordinates for the dilation of the line segment with endpoints (–1, 2) and (3, –3). (2, 4) and (6, 6) (2, 4) and (6, 6) (–2, 4) and (6, –6) (2, –1) and (–3, 3) 2. Given a scale factor of onehalf , find
asked by Briana T 
English
How coypu use duke in a sentence ?
asked by Sam 
English
Many people are surprised to learn how __1__ poverty is __2__ America. Today millions live below the poverty line, and the number seems to escalate daily. Judy and Martin Reed exemplify the old saying, “Opposites attract.” A __3__. Judy chooses work
asked by Brad 
business
What did Alexander Hamilton do to improve the US deficit?
asked by allee 
business
what is the bullwhip effect in/and supply chain?
asked by allee 
geometry
Pqrs jklm with a scale factor of 4:3qr8cm what is the value of kl
asked by christy 
Science help needed
Posted by This Girl on Thursday, December 6, 2012 at 1:41pm. 1. __________ is one type of genetic engineering, in which a normal allele is placed into a virus. (1 point) A color blind test Down syndrome Gene therapy Polygenic inheritance 2. Human insulin
asked by This Girl 
Spanish
Conjugate the following irregular verbs in the simple present tense (indicative) 6. Tener(to have) Yo __________ 7. Tener(to have) Nosotros ________ 8. Venir(to come) Tú _________ 9. Venir( to come) nosotros________ 10. Salir( to leave). él/ella_________
asked by Molly 
statistics
Scores from a statistics exam are reported as deviation scores. Which of the following deviation scores indicates a higher position in the class distribution?
asked by michelle 
english
Identify the underlined words in each sentence. 7. (Because chickens peck at each other,) someone invented chicken glasses. independent clause adverbial clause complex sentence adjectival clause 10. The Great Dane, (a large dog,)leapt over the fence.
asked by Anonymous 
Geometry
C:\Users\Bailey Bubble\Documents\Untitled.png this is the question with the picture and the answer choices.
asked by Jessie 
physics
calc the buoyant force on a 2 L helium balloon
asked by chris 
Geometry
Where can the lines containing the altitudes of an obtuse triangle intersect? I. inside the triangle II. on the triangle III. outside the triangle A)I only B)I or II only C)III only D)I, II, or III PLEASE HELP ME ASAP!!!!
asked by Corey 
Algebra
If I have 10000 dollars and the interest rate is .40% when will my money double if compounded anually?
asked by Anonymous 
Social Studies
How did being part of the Arab Islamic world affect Spain?
asked by Cherie 
1 math question help
Write the inequality and solve for the following problem: The result of 6 subtracted from a number n is at least 2.
asked by Jman 
Algebra
Help Please! 2n(xn)=x5n+2 Solve for X
asked by Josie 
scientist
what is the therms " average atomic mass is a .............. average ,and so is calculated from a" normal " average?
asked by asiya 
Psychology
How does one's cognitive processes shape some aspects of personality?
asked by Cynthia 
7th grade science Ms. Sue please
2. The smallest unit of life is the _____. (1 point) cell homeostasis organism protein 3. The nucleus is the largest of the _____. (1 point) chloroplasts mitochondria organelles ribosomes 6. Which is not found in animal cells? (1 point) central vacuole
asked by Delilah 
Psychology
How does biological and environmental factors shape our cognitive processes?
asked by Cynthia 
7th grade science Ms. Sue please only 5 questions
11. Which of these is selectively permeable? (1 point) door window screen wall mirror 12. The process that releases energy without using oxygen is ____. (1 point) photosynthesis respiration osmosis fermentation 13. The chromosomes in the nucleus of a cell
asked by Delilah 
Geometry
Which three lengths cannot be the lengths of the sides of a triangle? A)25 m, 16 m, 10 m B)15 m, 13 m, 12 m C)18 m, 5 m, 10 m D)8 m, 8 m, 15 m
asked by Jessie 
chemistry
QUESTION: Calculate the standard freeenergy change (deltaG°) for the following reaction at 25 °C in kJ. 2Ag^3+(aq) + 3Zn(s) 2Au(s) + 3Zn^2+(aq) here's what i have so far: first i wrote out the half reactions: Au^3+(aq) + 3e^ > Au(s) = +1.52*2 Zn(s)
asked by chem help please 
Physics
A Ladder of length L and mass m leans against wall at angle theta from the vertical. The wall is smooth so that only horizontal force N is exerted on the top of the ladder. A fireman of mass M climbs a distance d upward as measured along the ladder. (a):
asked by Mike 
algebra
Melissa drives her car 200 kilometers in 2.5 hours. How far can she drive in 6 hours at the same rate?
asked by Matt 
Math
(1/9)x^3+67 at x=9 Is the answer 148 Please help
asked by Kai 
art
How does the Holy Trinity by Masaccio express the humanist ideals of the15th century Renaissance? Include examples from two other artists from the same era who express the same humanist ideals. Use one example from Gardner’s Art through the Ages and one
asked by kim 
physics
A runaway truck lane heads uphill at 30◦ to the horizontal. If an out of control 15000 kg truck enters the lane going at 30 m/s , how far along the ramp does it go? The acceleration due to gravity is 10 m/s2.
asked by Anonymous 
Physics Elena please help!
An interstate highway has been built though a poor neighborhood in a city. In the afternoon, the sound level in a rented room is 114.0 dB as 172 cars pass outside the window every minute. Late at night, the traffic flow is only 7 cars per minute. (b) What
asked by Anonymous 
MathCalculus
Volume using disk method: x=.000574y^(2).439y+185 Interval: (0,500)
asked by Kimberly 
physics
A runaway truck lane heads uphill at 30◦ to the horizontal. If an out of control 15000 kg truck enters the lane going at 30 m/s , how far along the ramp does it go? The acceleration due to gravity is 10 m/s2.
asked by Anonymous 
Chemistry
Using Dimensional Analysis, how many moles of sodium is 32.5 g of sodium? Could you please tell me the steps on how to solve this I am stumped.
asked by Jimmy 
Math(Sample Spaces)
Elsa had a rubber disc that was red on one side and blue on the other. She tossed this disc 3 times. Draw a diagram showing all the possible outcomes she could get in 3 tosses of the same rubber disc 1st toss can be red or blue 2nd toss can be red or blue
asked by Jerald 
Chemistry
How many liters of hydrogen gas can be produced at 300.0K and 1.55atm if 20.0g of sodium metal is reacted with water?
asked by Allie 
Chemistry 3A
a titration required 18.38mL of 0.1574 M NaOH solution. how many moles of NaOH were in this volume?
asked by Gurjot 
Chemistry 3A
a student weighed out 1.106g of KHP. How many moles was that?
asked by Gurjot 
1 last math question
3. Which of the following equations has an infinite number of solutions? 3x – 3 = –4x 2y + 4 – y = 16 7x + 5 = 4x + 5 + 3x 6y – 2 = 2(y – 1)
asked by Jman 
Chemistry
How many liters of hydrogen gas can be produced at 300.0K and 1.55atm if 20.0g of sodium metal is reacted with water?
asked by Allie 
chem 101
how much heat is required to melt 25.6g of solid diethyl ether(at its melting point)
asked by to 
Algebra
Find the slope and yintercept of the equation. y=mx+b y = (2a)x + a
asked by Britney 
Spanish
Can u correctly write these sentences in Spanish,plz? 1. I'm very proud of my son. 2. He can spell his name backward and forward. 3. What's his name? 4. How much does a new car cost in America? 5. You must be very rich. If tried already this is wat I got,
asked by Molly 
physics help please!
The motion of a piston in an auto engine is simple harmonic. The piston travels back and forth over a distance of 23 cm, and the piston has a mass of 1.7 kg. 2515 rpm 23 cm max speed of the piston 30.28757 m/s What is the maximum force acting on the piston
asked by michelle 
Math
Writing in math Braden and bialy each bought a kazoo for $0.89.they each paid with a $1.00 bill. Explain two different ways to show their change.
asked by Anthony 
math
There are 12 slices of pie if jerry ate 1/3 of the pie, how many slices did he eat?
asked by nikki 
Chemistry
Carburization" of pure iron (Fe) is carried out at 950∘ C. It is desirable to achieve a carbon content of 0.9% at a depth of 0.1 mm below the surface. A constant supply of carbon at the surface maintains a surface concentration of 1.2%. Assuming the
asked by Andrea 
algebra
x^2+3+(1/10) How to factor that? plz help
asked by Anonymous 
Chemistry
An undesirable consequence of welding steel by acetylene torch is the rise in hydrogen concentration in the metal. That hydrogen contamination embrittles the steel. The metal is typically subjected to a vacuum heat treatment to restore ductility. A steel
asked by Andrea 
Chemistry
You wish to remove nitrogen from the nearsurface region of a plate of cobalt which is 1.0 cm thick. The plate is placed in a furnace at 417∘ C where an atmosphere of H2 and NH3 reacts with the nitrogen in the cobalt and fixes the surface concentration
asked by Andrea 
Chemistry
(a) Certain alloys such as LaNi5 can store hydrogen at room temperature. A plate of LaNi5 containing no hydrogen is placed in a chamber filled with pure hydrogen and maintained at a constant pressure. At what depth from the surface will the concentration
asked by Andrea 
Chemistry
The Gaussian error function can be approximated for small values of x as erf(x)≈x. Suppose a silicon wafer is exposed to aluminum vapor at 1300∘ C. At what distance (in centimeters) will the concentration of Al be 35% of the surface concentration in
asked by Andrea 
Chemistry
A pn junction is obtained at a depth of 3×10−3 cm by diffusion of antimony (Sb) into ptype germanium. What is the acceptor concentration in the bulk Ge, if diffusion was carried out for three hours at 790∘ C? Given: Constant Sb surface concentration
asked by Andrea 
Chemistry
To increase corrosion resistance, chromium is diffused into steel at 980∘ C. If the surface concentration of Cr is maintained constant at 100%, how long will it take (in days) to achieve a Cr concentration of 1.8% at a depth of 0.002 cm below the steel
asked by Andrea 
Chemistry
A pn junction is to be created by diffusing boron (B) into an ntype silicon wafer with an existing carrier concentration of 1015/cm3. The location of the junction will be 6μm below the surface of the wafer. The surface concentration of boron will be
asked by Andrea 
science
what is symbiosis
asked by kaki 
CHEM !(MOLE) PLZ HELP!
1.How many grams are in one mole silicon? 2. how many moles are in 128 grams of oxygen gas (O2)? 3.How many molecules are in 2 moles of AIO? 4.How many moles are in 18.06 x 10 to the 23 power? 5. how many moles are in 100 grams of CH4?
asked by tyneisha 
math
A cylindrical container has a volume of 226 cubic inches. the container is filled 3/4 of the way with water. To the nearest cubic inch, what is the volume of water in the container? How many more cubic inches of water is needed to fill the container?
asked by sandy 
algebra
matching graphs inequailty
asked by jake 
3rd grade math
jake has an even number of counters. carlos has an odd number of counters. how many more counters do they need to divide the combined total into an even number of groups?
asked by mythreyee 
chem1 WORD PROBLEM!!
6. how many grams are in 4 moles of Be (OH)3? 7.How many atoms are in 4 moles of C6H12O6? 8.how many moles are in 12.04x10 23 to the power molecules of hamburgers? 9. how many molecules are in grams of Helium gas (He2)? hint:convert then moles then
asked by tyneisha 
math
Adraiana and kyle have the same number of counters. they combine them with terry's counters and divide the total into 3 equal group. if adriana had 9 counters, what is the least number of counters terry could have had
asked by mythreyee 
science
What is the difference in pitch and volme as race cars pass by the cmeras at the Indianapolis 500?
asked by April 
Chemistry
Using Dimensional Analysis One mole of sillicon has a mass of 28.1 g, and one mole of oxygen has a mass of 16.0 . What is the mass of one mole of sillicon dioxide.
asked by Lisa 
math
A crew needs to pick up litter along one side of a section of highway that is 49.5 kilometers long. How many kilometers must the crew clean each day in order to finish the job in 5.5 days? A 0.11km B 0.9 km C 9.0 km D 11.2 km
asked by stephanie 
English Comp
read Chapters 1 and 2 and your Instructor’s Guidance for Week One again, applying the SurveyQuestionReadReciteReview (SQ3R) strategy as you reread the materials. Discuss how this reading strategy is similar to and/or different from the way you read
asked by Lita 
math
Solve: 1 2/8 x 2 1/9= A 2 10/36 B 3 11/36 C 4 5/36 D 2 23/36
asked by stephanie 
English
I need help on this story it be called Invitations by Carol Shields, I not able to post story on here but if you go to google and type in search box : invitations by carol shields on monday she looked in her mailbox a books google search come up that be
asked by Mohammad 
Geometry
In tiangle ABC, centroid D is on the median line segment AM. AD=x+4 and DM=2x4. Find AM.
asked by Anonymous 
Physics
The period of motion of an objectspring system is T = 0.474 s when an object of mass m = 296 g is attached to the spring. (a) Find the frequency of motion in hertz. _______Hz (b) Find the force constant of the spring. _______N/m (c) If the total energy of
asked by Ame 
physics
a car of mass m1800kg is pushed off a cliff of height h = 25.0m how long was the car in the air
asked by Anonymous 
Physics
A block of mass m = 2.00 kg is attached to a spring of force constant k = 5.15 102 N/m that lies on a horizontal frictionless surface as shown in the figure below. The block is pulled to a position xi = 5.75 cm to the right of equilibrium and released from
asked by Ame 
accounting
is returned purchased inventory considered as claims exchange(ce)?
asked by henry 
math
greg has 2 quarters, 1 dime, and 3 nickles. Stan has 3 quarters, 2 dimes, and 2 nickles. how can they share the coins so that they both have the same amount of money?
asked by mythreyee 
Math
Elsa had a rubber disc that was red on one side and blue on the other. She tossed this disc 3 times. Draw a diagram showing all the possible outcomes she could get in 3 tosses of the same rubber disc 1st toss can be red or blue 2nd toss can be red or blue
asked by Jerald 
GEOMETRY
In triangle ABC, centroid D is on the median line segment AM. AD=x+4 and DM=2x4. Find AM.
asked by Anonymous 
Math
I am a number on the hundreds chart. The sum of my digits is 9. My tens digit is 4. What number am I?
asked by Jai 
physics
A heavy concrete panel is being lifted into position in a building by means of a crane . The tension of 2.17 104 N in the supporting cable produces a torque with respect to point O. (Let L = 42.0 m.)
asked by Anonymous 
math
(u^5v^2)^1*u^3v
asked by dain 
business
an auto manufacturer negotiates a deal to have its cars appear in a Hollywood film. This is an example of a. publicity b. product placement c. media placement d image exposure
asked by sallly 
MATH urgent
Hello!! 1. find the third derivative of f(t)=(t1)/(t+1) 2. y= x^(x^2) ; dy/dx please help! thank you!
asked by Jess 
physics
A weather vane initially at rest has a moment of inertia of 0.119 kg · m2 about its axis of rotation. A 48.0 g piece of clay is thrown at the vane and sticks to it at a point 21.0 cm from the axis. The initial velocity of the clay is 23.0 m/s, directed
asked by Anonymous 
Math
Caitlin has a pink umbrella and a black umbrella. She has a pink jacket, a blue jacket, and a black jacket. Draw a diagram showing all the possible ways Caitlin can combine her jackets and umbrellas Pink umbrella pink blue or black jacket black umbrella
asked by Jerald 
math homework
arrays and expanded algorithim 23.17
asked by Anonymous 
Math challenge
There are 3 circles divided into thirds with a number in each third. The 1st cirlcle has 18, 23 & 49. 2nd cirlce has 25, 62, 38. The 3rd cirlce has ?, 17 & 39. We need to figure out what number is missing from the 3rd circle, and how you figured it out.
asked by Gabby 
Physics PLEASE HELP
An interstate highway has been built though a poor neighborhood in a city. In the afternoon, the sound level in a rented room is 114.0 dB as 172 cars pass outside the window every minute. Late at night, the traffic flow is only 7 cars per minute. (b) What
asked by Anonymous 
busines finance
A selfemployed person deposit $3000 annually into a retirement account that earns 8% interest. How much will he have in 25 years?
asked by Anonymous 
Chemistry 12
given the reacting system: H2 (G) + I2(G) > 2HI(g) Keq= 64 Equal moles of H2, I2, and HI are placed in a 1.0 L container. Use calculations to determine the direction the reaction will proceed in order to reach equilibirum
asked by Patrick 
math
Find the area of the region under the graph of the function f on the interval [27, 1]. f(x)= 23square root x ? square units
asked by Britney 
math
The quantity demanded x (in units of a hundred) of the Mikado miniature cameras/week is related to the unit price p (in dollars) by p = −0.2x2 + 80 and the quantity x (in units of a hundred) that the supplier is willing to make available in the market is
asked by Britney 
Accounting
Harris company borrowed 65,000 by giving 10 year , 6% installment note to Cuba Bank The note requires annual payments of $8832 first payment occuring on the last day of the fiscal year. the first payment consists of interest of $3,900 and principal
asked by Nancy 
language
Churches best seats were reserved for members of the gentry.
asked by Anonymous 
Algebra 1
4+9y3>9y+6
asked by Josh 
Math
How do you set this up? Solve the system using substitution: A boat travels 18 miles downstream in 1.5 hrs. It then takes the boat 3 hrs. to travel upstream the same distance. Find the speed of the boat in still water and the speed of the current. Thanks
asked by Erin 
math
john saw 24 animal at a pet store 14 dogs and 3 hamsters. how many more animals should he see?
asked by pedro 
Calculus
A solid is formed by adjoining one hemisphere to the top of a cylinder. The total volume of the solid is V (treat as a constant) cubic centimeters. Find the minimum surface area of the solid in terms of V.
asked by MM 
Physics
A baking dish is removed from a hot oven and placed on a cooling rack. As the dish cools down to 33° C from 181° C, its net radiant power decreases to 13.3 W. What was the net radiant power of the baking dish when it was first removed from the oven?
asked by Jim 
english
i have to write an essay on why should we have freee colllege education improvement in U.S.A. Why it is problem. Can u please give the reason.
asked by maria 
ENGLISH
Many people are surprised to learn how __1__ poverty is __2__ America. Today millions live below the poverty line, and the number seems to escalate daily. Judy and Martin Reed exemplify the old saying, “Opposites attract.” A __3__ Judy chooses work
asked by margaret 
priciple of accounting
What effect does a debit memo in a bank statement have on the Cash account? What effect does a credit memo in a bank statement have on the Cash account? Ms. Sue
asked by quita 
Chemistry 12
given the reacting system: H2 (G) + I2(G) > 2HI(g) Keq= 64 Equal moles of H2, I2, and HI are placed in a 1.0 L container. Use calculations to determine the direction the reaction will proceed in order to reach equilibirum
asked by Patrick 
physics
A weather vane initially at rest has a moment of inertia of 0.119 kg · m2 about its axis of rotation. A 48.0 g piece of clay is thrown at the vane and sticks to it at a point 21.0 cm from the axis. The initial velocity of the clay is 23.0 m/s, directed
asked by anthony 
Algebra
While playing marbles, your first opponent won half your marbles plus 4 marbles. You lost half of what was left plus 3 marbles to your second opponent, You lost half of what was then left plus 2 more to the third opponent and your fourth opponent won your
asked by Britney 
Socialstudy
If u visit a shaker village today what will you see and do ?
asked by Huma 
Physics
A block of mass m = 2.00 kg is attached to a spring of force constant k = 5.15 102 N/m that lies on a horizontal frictionless surface as shown in the figure below. The block is pulled to a position xi = 5.75 cm to the right of equilibrium and released from
asked by Ame 
math perimeter
susans garden fence goes around the entire garden.the fence is a quadrilateral.all of the sides are equal in lenth.one side measures 15 cm. what is the perimeter of the garden
asked by kim 
English  ms. sue
Ms. Sue, my sister write out story here it is. On Monday she looked in her mailbox, although she had no reason to expect a letter so soon. But there it was, a small, square car. She held it in her two hands, testing its weight. It was an invitation to an
asked by Mohammad 
Physics URGENT!!!
A train sounds its horn as it approaches an intersection. The horn can just be heard at a level of 59 dB by an observer 14 km away. (a) What is the average power generated by the horn? (b) What intensity level of the horns sound is observed by someone
asked by Anonymous 
math
What does 1/8 + 1/2 + 3/4 equal to?
asked by Anonymous 
Social Studies
I don't have an atlas and I need help finding the location. I need the nearest city and the country that it's in. Thank you. 1. 31° s, 64° w 2. 13° s,71° w 3. 16° s, 68° w
asked by Jake 
chemistry
My chem book gives me the following Hess' Law example: Mg + 2HCl > H2 MgCl2 Delta H1 MgO +2HCl > H2O +MgCl2 Delta H2 H2 + 1/2 O2 > H2O Delta H3=68.3kcal The desired reaction is the formation reaction of MgO as follows: MgS +1/2 O2 > MgO Delta H
asked by marcus 
physice
A deepsea fisherman struggles to bring in a big salmon (see figure below). Find the force each hand must exert on the pole if the tension in the line is 155 N. Neglect the weight of the pole and assume that the force exerted by the left hand is directed
asked by anthony 
Algebra 1
Can you help me set this up? Suppose you are trying to decide whether to buy ski equipment. Typically it costs $60 day to rent skis and buy a lift ticket. You can buy ski equipment for about $400. A lift ticket alone costs $35 for one day. Find the
asked by Kate 
math
Find quotient of 3.94/1,000
asked by Berth 
physics
A particle rotates counterclockwise in a circle of radius 6.5 m with a constant angular speed of 7.4 rad/s. At t = 0, the particle has an x coordinate of 3.3 m and y > 0 . A) Determine the x coordinate of the particle at t = 0.716 s. Answer in units of m (
asked by michelle 
math
what is three less than 11 times a number is the same as the number decreased by 13. find the number
asked by zoey 
Math
Marty is a cheerleader. His school colors are red,white,and blue. Marty's uniform consists of a red sweater and a blue sweater/ He has 3 pairs of uniform pants: one red one white and one blue. Draw a diagram showing all the possible ways Marty can combine
asked by Jerald 
physics
A 1.00 x 10^3 kg sports car accelerates from rest to 25.0 m/s in 7.50 s. What is the average power output of the automobile engine?
asked by Leslie 
chemistry
In the following reaction, how many grams of ferrous sulfide (FeS) will produce 0.56 grams of iron (III) oxide (Fe2O3)? 4FeS + 7O2 d 2Fe2O3 + 4SO2
asked by bri 
physics PLEASE HELP
A 3.00kHz tone is being produced by a speaker with a diameter of 0.185 m. The air temperature changes from 0 to 29° C. Assuming air to be an ideal gas, find the change in the diffraction angle θ.
asked by Lucy 
math
What is the surface area of a cube with a volume of 81cm3?
asked by Karen 
Math
Alicia had 2 1/2 yards of ribbon. She used 1/3 of the ribbon on the costume and 25% on a bracelet. How many yards did she use?
asked by Reese 
Math
3 1/7  1 3/7=1 5/7?
asked by Jerald 
Math
1) what is the length of the diagonal of a square whose sides are 3 inches long. A. 9 inches B. 3 square root 2 inches**** C. 6 inches D. 18 inches 2) which set of measure could be the side lengths of a right triangle? A. 0.9 cm, 1.2 cm, 1.5 cm B. 4 in, 4
asked by Randy 
Math
Use the substitution method to solve the following system of linear equations: x + y = 6 x = –y + 2 A. There are an infinite number of solutions. B. The solution is (2, 4). C. The solution is (4, 2). D. There is no solution.
asked by Help!!!!!!!!!!!!!! Fast its urgent Please!!!!!!!!! 
Math
Which of these prices is lower than 5 for 3 dollars?
asked by HatersHate 
Math
1) Solve equation 3r+5 _____ + 2 = 2r to find the value of r? 2 A. 2 1/7 B. 3 2/3 C. 15 D. 10 2) which is these is a rational number. A. Sq root of 14 B. sq root of 9 C. sq root of 34 D. Sq root of 72
asked by Randy 
Physics
Which results in a higher force of impact? Assume both collisions are completely inelastic (your car comes to a stop) and both take the same amount of time. A) Running your car at 20 mph into a solid wall B) Running your car headon at 20 mph into an
asked by Frustrated 
physics
A 417 kg pig is standing at the top of a muddy hill on a rainy day. The hill is 100m long with a vertical drop of 37.4 m. If the pig slips and begins to slide down the hill, assuming a negligible amount of friction what will be the pigs speed at the bottom
asked by Anonymous 
Physics
Which results in a higher force of impact? Assume both collisions are completely inelastic (your car comes to a stop) and both take the same amount of time. A) Running your car at 20 mph into a solid wall B) Running your car headon at 20 mph into an
asked by Frustrated 
math
Which of the following statements is true? A. all trapezoids are similar B.all isosceles triangles are the same C.all rectangles are similar D.all equilateral triangles are similar
asked by alfonso 
Math
Craftsmen install 500 sq ft of ceramic tile and 100 sq ft of vinyl tile in one day. An apprentice installs 100 sq ft of ceramic tile and 200 sq ft of vinyl tile in one day. The firm has a job that requires 2000 sq ft of ceramic tile and 1600 sq ft of vinyl
asked by Andrew 
Math
Which of these is an irrational number? A.. Sq root of 14 B. sq root of 9 C. sq root of 34 D. Sq root of 72
asked by Help 
Math
2) which set of measure could be the side lengths of a right triangle? A. 0.9 cm, 1.2 cm, 1.5 cm B. 4 in, 4 in, 4 in C. 7 m, 8m, 9m****** D. 2ft, 3ft, 4ft
asked by Help 
possesive nouns
The sister of Miguel woke him up
asked by natalie 
physics
In a popular amusement park ride, a rotating cylinder of radius 2.90 meters is set into rotation with a period of 2.28 seconds. The floor then drops away, leaving the riders suspended against the wall in a vertical position.
asked by asldkf 
Math
Craftsmen install 500 sq ft of ceramic tile and 100 sq ft of vinyl tile in one day. An apprentice installs 100 sq ft of ceramic tile and 200 sq ft of vinyl tile in one day. The firm has a job that requires 2000 sq ft of ceramic tile and 1600 sq ft of vinyl
asked by Andrew 
Math
A rectangle is 6 cm long and 5 cm wide. When each dimension is increased by x cm, the area is tripled. Find the value of x.
asked by Casey 
MATH
6. A computer company has two manufacturing plants, one in Rochester and one in Queens. Transporting a computer from Rochester to the retail outlet takes 15 hours and costs $15, while transporting a computer from Queens to the retail outlet takes 20 hours
asked by RENEE 
spanish
Can someone please proofread what I have so far on my Spanish essay for finals? Here it is so far: Antes de ver al aeropuerto, es importante confirmer el vuelo. Haces la maleta con ropa para tus vacacion. Cuando llegas el areopuerto, recibes la tareta de
asked by Emily 
western michigan university
A 30 gram metal at 100 degrees Celsius was dropped into 132 grams of water at 25 degrees Celsius and the final temperature for the metal in water system was 29 degrees Celsius. Calculate the specific heat capacity of the metal if the specific heat capacity
asked by lorena 
western michigan university
1050 calories of heat from soybean oil was applied to a 250 gram sample of liquid water with an initial temperature of 25 degrees Celsius. Determine (a) the final temperature of water and (b) the change in temperature.
asked by lorena 
physics
A box slides down a 33.3 ◦ ramp with an acceleration of 1.07 m/s 2 . The acceleration of gravity is 9.8 m/s 2 . Determine the coeﬃcient of kinetic friction between the box and the ramp.
asked by Anonymous 
western michigan university
2.5grams of pecan nut was turned to heat up 100grams of water at 24 degrees Celsius. The final temperature after all the pecan oil in the nut was completely consumed was 70 degrees Celsius. Calculate the (a) energy released by the 2.5 gram pecan in
asked by lorena 
physics! please help!!
A particle rotates counterclockwise in a circle of radius 6.5 m with a constant angular speed of 7.4 rad/s. At t = 0, the particle has an x coordinate of 3.3 m and y > 0 . A) Determine the x coordinate of the particle at t = 0.716 s. Answer in units of m (
asked by michelle 
Ideas/ newsworthy
Hi I'm trying to conduct a video for this new group we have on our campus called the Secular Student Alliance.. it's essentially an atheist group where they meet you share their beliefs.. Any ideas on questions I could ask them about their group that the
asked by Blazes 
College Chemistry
Is .1M NaH2PO4 a good buffer? Explain.
asked by Kelsey 
Math
When (5x^6+10x^5+2x^4+19x^3+2x^2+1)^10000 is multiplied out, what is the coefficient of x^4?
asked by John 
Chemistry
Assume that a particular reaction evolves 230 kJ of heat and that 28 kJ of PV work is gained by the system. What are the values of delta E and delta H for the system? For the surroundings?
asked by Thalia 
Chemistry
combustion analysis of 63.8 mg of C,H, and O containing compound produced 145.0 mg of CO2 and 59.38 mg of H2O. What is the empirical formula for the compound?
asked by Emma 
Chemistry
What element is undergoing oxidation (if any) in the following reaction? CH4(g) + 2 O2(g) ¨ CO2(g) + 2 H2O(g)
asked by Emma 
math((PLEASE HELP!))
How does Pythagorean theorem help to classify other triangles?
asked by Maryam :) 
Chemistry
Determine the volume of H2S (at 375 K and 1.20 atm) needed to produce 55.0 g of S. Assume that there is excess SO2 present. 2 H2S(g) + SO2(g) ¨ 3 S(s) + 2 H2O(g)
asked by Emma 
Chemistry
Which of the following compounds can exhibit cistrans isomerism? A) [Fe(CO)5ONO]2+ B) [Fe(CO)3(NH3)3]3+ C) [Cu(CO)5Br]+ D) [Cr(H2O)4Br2]+ E) [Fe(NH3)6]2+
asked by Emma 
Chemistry
The complex ion, [Ni(NH3)6]2+, has a maximum absorption near 580 nm. Calculate the crystal field splitting energy (in kJ/mol) for this ion.
asked by Emma 
chemistry
Choose the bidentate ligand from the substances below. A) cyanide ion B) ammonia C) EDTA D) carbon monoxide E) ethylenediamine
asked by Emma 
Chemistry
How many atoms of carbon are contained in 47.6 g of Al2(CO3)3? The molar mass of Al2(CO3)3 is 233.99 g/mol.
asked by Emma 
Chemistry
The temperature rises from 25.00 °C to 29.00 °C in a bomb calorimeter when 3.50 g of sucrose undergoes combustion in a bomb calorimeter. Calculate ÄErxn for the combustion of sucrose in kJ/mol sucrose. The heat capacity of the calorimeter is 4.90 kJ/°C
asked by Emma 
science
the columbian exchange during the age of discovery
asked by allrcia 
Chemistry
The titration of 25.0 mL of an unknown concentration H2SO4 solution requires 83.6 mL of 0.12 M LiOH solution. What is the concentration of the H2SO4 solution (in M)?
asked by Emma 
grammar
What is the simple subject in this sentence Who cares if she's in 3rd grade and I'm just in 1st.
asked by Angela 
calculus
a woman throws a ball vertically upwards so that 4seconds elapse before it strikes the ground. Determine the maximum height of the ball and the velocity with which the ball was thrown. Assume that the acceleration due to gravity is 10m/s squared and
asked by Tatjana 
math
The quantity demanded x (in units of a hundred) of the Mikado miniature cameras/week is related to the unit price p (in dollars) by p = −0.2x2 + 80 and the quantity x (in units of a hundred) that the supplier is willing to make available in the market is
asked by please help! 
SCI/275
Compare and contrast the western world view with the deep ecology world view. Challenge one of the world views presented in Visualizing Environmental Science. Which world view is closest to your own? Why?
asked by Jose 
Math
Which is the side length of a square with an area of 144 ft squared? 36, 72, 12 or 18 ft.? Is it 12?
asked by Van 
airthmetic progression
If m, n are natural numbers, m > n, sum of mth and nth term of an increasing AP is 2m and their product is m^2– n^2, then what is the (m+n)th term of the A.P.?
asked by simmi 
Chemistry
The fictitious compound, arrhenium fluoride (AhF), reacts with itself to form a dimer with the formula Ah2F2 . The reaction is second order in AhF. The value of the rate constant is 8.591x103 M1s1. What is the initial rate of reaction in a reactor
asked by Please Help Me