
Physics  Important
a car attempts to stop and slides 25.5m while accelerating at 4m/s^2. The car's initial velocity was 20m/s. Find the time the slide took. Note that the final velocity is not known and that you need a quadratic solution. I know the quadratic formula, but
asked by Sam on February 3, 2009 
Algebra Grade 10
A man wants to create a Japanese garden with a parabolic footbridge to cross the creek in front of his garden. The bridge needs to span 5 meters and  according to the design he has selected  is 2 meters tall at the apex. Find a quadratic model that
asked by Hannah on September 12, 2014 
algebra
On the day a child was born, a lump sum P was deposited in a trust fund paying 6.5% interest compounded continuously. Use the balance A of the fund on the child's 29th birthday to find P. (Round your answer to the nearest cent.) A = $5,000,000 P = $1
asked by leah on November 1, 2011 
AP Calculus
If 600 cm2 of material is available to make a box with a square base and a closed top, find the maximum volume of the box in cubic centimeters. Answer to the nearest cubic centimeter without commas. For example, if the answer is 2,000 write 2000.
asked by Alyssa on October 16, 2014 
Algebra I
Driving down a mountain, Tom finds that he has descended 1800 ft. in elevation by the time he is 3.25 mi horizontally away from the top of the mountain. Find the slope of his descent to the nearest hundredth. slope is descent divided by distance from base.
asked by Sally on August 21, 2007 
Physics
An original hydrometer of mass 28g Floats with 6cm of its stem out of water. The area or crosssection of the stemost is 0.75cm^2. Find the total volume of hydrometer and length of the stem above the surface when it floats in a liquid of relative density
asked by Happy on July 3, 2019 
maths
in a common coding method each of the letters of the alphabet is replace by the number denoting its usual place in alphabetical order, a bird is then encoded by multiplying the number representing the letter of the word. find an english word that is
asked by sunny on December 16, 2011 
Mathematics Help
Giving a test to a group of students, the grades and genders are summarized below. A B C Total Male 3 15 11 29 Female 14 9 12 35 Total 17 24 23 64 If one student is chosen at random, find the probability that the student was female OR received a grade of
asked by Anonymous on October 8, 2016 
Math
BASIC MATHEMATICS MAT/115 I have this problem and it is my last one and I can not figure it out can someone help me the question is. Find the missing length of the right triangle, 7,25 it is a scalene triangle I have been fighting with this problem for the
asked by danny on May 15, 2007 
chemistry (Pls Bob check for me)
A 0.5g of fuming h2so4 oleum is diluted with water. This solution is completedly neutralized by 26.7ml of 0.4N naoh. Find the percentage of free so3 in the sample The asnwer 20.6% My calculation h2so4= 98/2 = 49 so3= 80/2 = 40 26.7ml x 0.4N = 10.68ml 
asked by Fai on March 24, 2013 
calculus
If 600 cm2 of material is available to make a box with a square base and a closed top, find the maximum volume of the box in cubic centimeters. Answer to the nearest cubic centimeter without commas. For example, if the answer is 2,000 write 2000.
asked by jake on January 19, 2015 
Math  Simple rational Function (check)
Consider the function f(x) = x/(x1) Are there any turning points? Explain how this could help you graph f(x) for large values of x? Ans: turning points is another word for checking the concavity, and therefore i find the second derivative and equate it to
asked by Anonymous on October 25, 2010 
fluid mechanics
A circular plane lamina is immersed inclined in water such that the distance of its parimeter measured vertically below the water surface varies between 0.6m and 1,5m. Find the total hydrostatic force acting on the side of the lamina, and the vertical
asked by kefilwe on March 22, 2015 
Physics
Suppose a chinook salmon needs to jump a waterfall that is 1.32 m high. (a) If the fish starts from a distance 1.24 m from the base of the ledge over which the waterfall flows, find the x and ycomponents of the initial velocity the salmon would need to
asked by Jay on February 17, 2016 
english
I have project and i would really appreciate if you help/tell me where i could find these questions, thanks! Please am confused just tell me a ways to do it! 1)Identify three main tasks/ responsibilites of purchasing 2) Identify &explain 5 communication
asked by Dancer on October 25, 2011 
Algebra
According to a poll conducted in a company, 47% of the employees regularly use the internet while at work. You conduct a similar survey at your mother's office where there are 250 respondents. What is the probability you find between 102 and 117.5
asked by James on May 24, 2012 
Physics
In a television tube, electrons initially at rest are accelerated by a uniform electric field of magnitude 4.0 105 N/C during the first 5.0 cm of the tube's length; then they move at essentially constant velocity another 45 cm before hitting the screen.
asked by Anonymous on January 20, 2011 
Maths
Please help with these questions: (please show how to do) 1. How many differently shaped rectangles, with positive integer dimensions, have a perimeter equal to their area? 2. Let x be any number less than one, and let y be any number greater than one. S=
asked by Mea C on February 3, 2010 
math
An airplane flying into a headwind travels the 1650mile flying distance between two cities in 3 hours and 18 minutes. On the return flight, the distance is traveled in 3 hours. Find the airspeed of the plane and the speed of the wind, assuming that both
asked by laura on August 24, 2016 
Math
Find the approximate number of radians, to the nearest hundreth, in the angles with the following dergree measures. a) 60 degrees b) 128.5 degrees c) 150 degrees d) 80 degrees e) 145 degrees f) 325 degrees g) 56.4 degrees h) 230 degrees Please help answer
asked by Jiskha lover:D on December 18, 2012 
Algebra
Need help with these 6. Chase scored 14 points on Monday, and he doubled his score each day thereafter. How many points did he score on Thursday? 8. Find a solution to the following system of equations using elimination: 5x + y = 5 4x + 2y = 2 21.
asked by mysterychicken on June 11, 2010 
Health
Which of the following is a possible physical consequence of fasting? a. loss of lean body tissues b. lasting weight loss c. hypertrophy d. All of the above I know that both A & B are correct, but I can't find anything to confirm that hypertrophy has
asked by Jen on January 14, 2008 
Physics
A 64 kg bicyclist rides his 7.7 kg bicycle with a speed of 13.5 m/s. How much work must be done by the brakes to bring the bike and rider to a stop? How far does the bicycle travel if it takes 4.5 s to come to rest? What is the magnitude of the braking
asked by Physicster on March 13, 2010 
algebra
The weekly cost of manufacturing x telephones per week is found by a manufacturer to be C(x)= 500+20x+xsq dollars. The telephones can be sold at a price p=$80 each. a)find the manufacturers's breakeven production level(s) b)for what production levels will
asked by Anonymous on January 17, 2013 
U.S. HISTORY i really need someones help!
i need to know what mary chesnut thought of patriarchy and other opinions of hers. i've looked everywhere and cant find anything, i already know her opinion of slavery tho http://www.google.com/search?hl=en&q=mary+chestnut&btnG=Google+Search Looks as if
asked by INEEDHELP!!! on November 5, 2006 
biology
what animals and plants are unique in the Belize's barrier reef system? would it be; blue green algae, mangroves and large seagrass meadows.marine turtles, manatees and marine crocodiles? I also need to find the animals and plants that are diversity in
asked by Patiance on January 30, 2010 
Math (Word Problem)
An open gift box is to be made from a square piece of material by cutting fourcentimeter squares from the corners and turning up the sides. The volume of the finished box is to be 576 cubic centimeters. How to find the size of the original piece of
asked by Fatima on October 11, 2014 
modern world history
how did the agricultural revolution pave the way for the industrial revolution Think of all the agricultural machines that were invented to aid the growth of agriculture (example: the reaper, the cotton boller) I am sure you can find others. Then as
asked by isha on December 6, 2006 
physics
a ship sends a snoar pulse of frequency 30kHz and duration 1.0 ms towards a submarine and receives a reflection of the pulse 3.2 s later. the speed of sound in water is 1500 ms1. find the distance of the submarine from the wavelength of the pulse and the
asked by sake on April 7, 2008 
Math
The distance btwn two stations A and B is 230km.two motrcyclst start simultaneously frm A & B in opposite directn and the distance btwn them aftr 3hour bcm 20km.if the speed of one motorcyclst is 10km hr les thn that of the other,find the speed of the two
asked by Simran kaur on November 7, 2012 
Physics
A person whose weight is W = 658 N is doing pushups. From his feet to his center of gravity he is 0.840m and from the center of gravity to his hands is 0.410m. Find the normal force exerted by the floor on (a) each hand and (b) each foot, assuming that
asked by BrookeNeed on November 13, 2016 
geography
The alternative for the Americas agreement of the early 2000s is primarily aimed at... A) excluding the US from Latin America B) creating a Latin America Union C) inviting foreign investment from Asia D) improving ties with the European Union Can't find
asked by Hannah on September 2, 2014 
PreCalc
A large painting in the style of Rubens is 3 feet longer than it is wide. If the wooden frame is 18 in wide and the area of the picture frame is 286 ft^2, find the dimensions of the painting. I have the basic idea down of what I'm supposed to do to solve
asked by Wooah on October 16, 2011 
calculus
Iamhaving a really hard time trying to understand this question. Can someone please show me how to work this question. Give the following polynomial, find a. the zeros and the multiplicity of each b. where the graph crosses or touches the xaxis c. number
asked by SammyPlease,please help!!!! on December 18, 2012 
Algebra
Carly deposits $900 into an annuity at the end of every month for 2.5 years. The fund holds international stocks, and it yields about 12% compounded monthly. Find the interest earned after 2.5 years. a.$31,619.46 b.$31,306.40 c.$4,619.47 d.$4,306.40 (I can
asked by Mac on April 23, 2015 
trig
Find the bearing and airspeed for a plane to fly 630 miles due north in 3 hours if the wind is blowing from a direction of 318* and is blowing at 15mph. Approximate the bearing to the nearest degree and the speed to the nearest mile per hour.
asked by lynn on April 28, 2015 
algebra 2
you saved $25000 to buy a new car in time for graduation in 2020. in 2010 you invested in a certain amount of your savings in a blue chip stock that yields 5% interest compounded monthly. find out much money you started with before you saved enough to buy
asked by uyen on February 5, 2016 
history
6. Do you find it curious that Budinot, an educated and highly assimilated Cherokee, would argue for removal in the name of preserving the Cherokee people? What does he fear if the Cherokee remain? What does this say about his attitude towards his own
asked by rei on April 20, 2010 
trig
let P be a point in Q1 such that the slope of the line connecting P to the origin is sq. root of 2 and the distance from P to the origin is 3 units. Find the coordinates of P, state all trig values for angle formed by the line and the positive xaxis, and
asked by Chelci on October 25, 2011 
CJS230
Will someone please help me find a website to read to answer the following questions? What were women’s prisons like before the 1800s? How have they changed? What are the three basic arguments established in the 1800s that supported the separation of
asked by Sade C on June 5, 2012 
elementary statistics
The number of calls received by a car towing service averages 21.6 per day (per 24hour period). Find the probability that in a randomly selected hour the number of calls is fewer than 4. What requirement for the Poisson distribution is probably not valid
asked by Rose Bud on February 25, 2012 
Chemistry
a mixture of 34.0g of ammonia and 50.0g of elemental oxygen react to form elemental nitrogen and water. Please write a balanced chemical equation for this reaction. Find the theoretical yield of water in grams and give the amount of excess reactant in
asked by Tra on March 3, 2014 
Physics
How much heat does a freezer need to remove from 1kg of water at 40°C to make ice at 0°C? (You will need to use the specific heat of water to drop the temperature first, before trying to make the phase change!) Show your work. Please help! Also, this
asked by Jay on December 7, 2016 
English
I'm currently reading "Botany of Desire" and there are a couple questions that i'm unsure about. please help me because i'm very bad at critical reading. 1. why did Pollan find Chapman so significant to the history of the United States? 2. How does Bill
asked by Arron on April 8, 2008 
Math
a tray with a square base is to be made from a square piece of cardboard by cutting 5 inch squares from each corner and folding up the sides. If the box is to hold a volume 520 cubic inches, find the length of the piece of cardboard that is needed.
asked by Fairen on August 14, 2016 
Geometry equation
I do not understand how to work a problem or equation out for geometry. The equation refers to two parrellel lines that have a transversal line running diagonal through each one. The exterior anglebottom left part of the top parrellel line, measures at 52
asked by BWB on May 11, 2010 
business math115
Chong base pay rate is $13.50 per hour, with overtime paid at timeandahalf and double time for holidays. Find her gross if she worked 9 holidays hours in addition to 40.5 hours Monday through Saturday. round to the nearest cent.
asked by keosha on June 24, 2015 
physics
A wheel of 40cm radius rotates on a stationary axle. It isuniformly speeded up from rest to a speed of 900 rpm in a time of20s. Find (a) the constant angular acceleration of the wheel and(b) the tangential acceleration of a point of a point on itsrim.
asked by Anonymous on February 9, 2012 
physics
A wheel of 40cm radius rotates on a stationary axle. It isuniformly speeded up from rest to a speed of 900 rpm in a time of20s. Find (a) the constant angular acceleration of the wheel and(b) the tangential acceleration of a point of a point on itsrim.
asked by Anonymous on February 9, 2012 
calculus optimization problem
by cutting away identical squares from each corner of a rectangular piece of cardboard and folding up the resulting flaps, an open box may be made. if the cardboard is 30 inches long and 14 inches wide find the dimensions of the box that will yield the
asked by sasha on April 3, 2013 
Pre Cal/Vectors
Can someone show the steps involved in figuring out this type of problem? Given the magnitudes of vectors u and v and the angle Ό between them, find the magnitude of the sum u + v to the nearest tenth and the angle that the sum vector makes with u to the
asked by Joe on July 24, 2011 
physics
A 62 kg water skier, moving at 14 m/s , lets go of the towline. a.Find her momentum. 868kgm/s b.What impulse is needed to bring her to rest? 868Ns c.If the water exerts an average force of 275 N on the skier, how long must the force act? 3.16 s d.How far
asked by JW on January 4, 2012 
statistic
Suppose a random sample of 25 students is selected from a community college where the scores in the final exam (out of 125 points) are normally distributed, with mean equal to 112 and standard deviation equal to 12. Find the probability that the sample
asked by Coco on November 8, 2012 
physics (Compton effect)
need helppp. Find the energy of an xray photon that can impart a maximum energy of 50 keV to an electron by Compton collision. Max energy being Kinetic Energy? do I just plug the 50*10^3 eV (convert to J) into the E=h (c/lambda) equation?? We are not
asked by paul on October 10, 2015 
Physics
A circuit contains a selfinductance L in series with a capacitor C and a resistor R. This circuit is driven by an alternating voltage V=V0sin(ωt). We have L=0.015 H, R= 80 Ω, C= 5e06 F, and V0=40 volts. Q) Find the energy UC(t) and the energy UL(t)
asked by rishabh gupta on May 5, 2013 
Physics
In a particular crash test, an automobile of mass 1295 kg collides with a wall and bounces back off the wall. The x components of the initial and final speeds of the automobile are 25 m/s and 1.5 m/s, respectively. If the collision lasts for 0.11 s, find
asked by monica :) on February 1, 2015 
Geography
Hello! I am writing a 700 word paper over sedimentary rocks. So far I have had no problems finding what I need, but I'm having trouble finding information on the distinguishing characteristics between the three categories of sedimentary rocks; clastic,
asked by anonymous on July 10, 2010 
Lab Math
A stock solution of inulin has a concentration of 500mg/ml. From this stock 0.05ml is diluted with 0.05ml of sterile saline. After 30 min blood is sampled and produces a result of 50ug/ml. What is total extravascular volume? I just need to find what the
asked by Morgan on September 5, 2012 
math
in 2001 there were about 2,317,000 marriages in the United States. Ms.Sue, I know you want me to do this by myself and you would do the explaining. Ms.Sue here is one of the example problems from my study links.I don't get how they find the percentage. My
asked by Celest on April 9, 2012 
Math
John wants to hire an editor to check his thesis paper. The editor charges a flat rate of $50 and $2 per page. Write a polynomial to describe the cost. Find the cost of editing 75 pages. Calculations: Answer: Polynomial:
asked by Teresa on February 24, 2014 
Physics help!!
A team of dogs drags a 150 kg sled 1.39 km over a horizontal surface at a constant speed. The coeﬃcient of friction between the sled and the snow is 0.236. The acceleration of gravity is 9.8 m/s^2. Find the work done by the dogs. Also, What is the energy
asked by Elle on December 1, 2011 
Statistics
Marks: /20 What percentage of the general US population have bachelor's degrees? The Statistical Abstract of the United States (120th edition), gives the percentage of bachelor's degrees by state. For convenience, the data are sorted in increasing order.
asked by Nadia on March 18, 2011 
Math
Write a program in C to find a root of a given equation using Secant Method. Perform five iterations to obtain the smallest positive root of the equation f(x) = sin x + 2tanx. Verify your answer with the program written by you. Please post the solution....
asked by Royal on March 13, 2012 
Geometry
Given: ABCD is a parallelogram m∠A = 60º ; BK ⊥AD AK = KD; Perimeter of ABCD = 24 Find: BD. So I have this question it has been giving head aches and I am vary tired of doing, can you post the answer and the solution my class is starting in 2 hours,
asked by Anonymous on March 30, 2017 
hi! I needed help finding an article...
I am in this debate class, and I needed help finding some articles on the Con points of charter schools. A con point I already have is that becuase charters run as buisnesses, they have a chance of failing. Other than that, I cant seem to find a bad thing
asked by min suk on October 10, 2007 
biology
You need a 5 microgram glucose/ml aqueous solution, but the lab balance is accurate to only 0.01g (ie., it displays 2 digits to the right of the decimal point) Describe 2 methods by which you could accurately prepare this solution using the lab balance. I
asked by alex on September 4, 2013 
Social Studies
10. Arabia and Iraq are most affected by the scarcity (or lack of) which resource? Ok I have tried really hard to research this and maybe I'm thinking to hard but I came up with water or oil. _LOL_ and I have a huge headache...but I am not going to give
asked by WOW on April 30, 2017 
physics
A soccer ball of mass 450 grams is initially moving horizontally east at 12 m/s. You kick it so that it moves horizontally north at 13 m/s. The collision lasts 0.04 s. Find the magnitude and direction of the average force you apply to the ball. F = Angle
asked by roly on December 6, 2011 
Math
An open box is to be made from a square piece of material by cutting fourcentimeter squares from each corner and turning up the sides (see figure). The volume of the finished box is to be 144 cubic centimeters. Find the size of the original piece of
asked by Sue on November 10, 2016 
Math
I am doing estimating Standard deviation of grouped data. I have done all the sum freg 60/ midpoint 2580/ x bar is 43 for all/ and total with x bar is 10260. Can you explain how to get the variance and sq root from these. I know that you have to
asked by Mary Ann on July 26, 2015 
Pre algebra
when a skydiver jumps from an airplane, the distance of d in feet the diver falls in t seconds before opening the parachute is given by the formula d=16t^2 (the formula asumes that there is no air resistance) find the time it takes a skydiver to fall
asked by Anonymous on October 10, 2014 
Geometry
I have a few questions I am confused on. #4. Use formulas to find the lateral area and surface area of the given prism. Round your answer to the nearest whole number. The figure is not drawn to scale. A. 795 m^2; 809 m^2 B. 758 m^2; 849 m^2 C. 795 m^2;
asked by Jessica on December 18, 2017 
physics
There are Two boxes on top of each other. The top has a mass of 2.99kg the bottom one has a mass of 7.89 kg. A horizontal force of 39.97 newtons is applied to the left to move them both at an acceleration of 1.42m's^2 Find the minimum coefficient of static
asked by squires on September 16, 2011 
geometry
1. An exterior angle of a regular polygon measures 30 degrees. What is the measure of an interior angle? 30 60 120 150 2. How many degrees are in each interior angle of a regular pentagon? 50 72 108 120 3. If all of the diagonals are drawn from a vertex of
asked by Justin on November 30, 2010 
physics
At low speeds (especially in liquids rather than gases), the drag force is proportional to the speed rather than it's square, i.e., F⃗ = −C1rv⃗ , where C1 is a constant. At time t = 0, a small ball of mass m is projected into a liquid so that it
asked by Anonymous on October 14, 2013 
PHYSICS(PLS HELP)
At low speeds (especially in liquids rather than gases), the drag force is proportional to the speed rather than it's square, i.e., F⃗ = −C1rv⃗ , where C1 is a constant. At time t = 0, a small ball of mass m is projected into a liquid so that it
asked by Anonymous on October 14, 2013 
PHYSICS(HELP)
At low speeds (especially in liquids rather than gases), the drag force is proportional to the speed rather than it's square, i.e., F⃗ = −C1rv⃗ , where C1 is a constant. At time t = 0, a small ball of mass m is projected into a liquid so that it
asked by Anonymous on October 14, 2013 
Physics
Please help quickly his handbag exerts a force of 10 N on the hook. Which of the following values is a possible tension for each side of the cloth loop on the handbag? Each side of the loop exerts a vertical force only, not a horizontal force, on the rest
asked by Gianna on November 18, 2013 
Algebra 2 URGENT
Solve the problem. Round the answer to the nearest hundredth. Please Show All Work! A garden is currently 4 meters wide and 7 meters long. If the area of the garden is to be doubled by increasing the width and length by the same number of meters, find the
asked by Trisan on November 18, 2009 
Math
A rectangular tank 40cm wide by 50 cm long by 30 cm high is filled up with water up to 2/3 of its height .water flows from a tap into the tank at a rate of 0.5 liter per minute. Find the amount of water in the tank after 30 minutes. Give your answer in
asked by Patrick on April 2, 2019 
statistics
Playing game of chance and pay 300 by rolling a fair die one time if you rome a 2 and receive $1300 if you roll a 4 or six you receive $900 if you ore a 3 5 or 9 receive nothing. find expected value for this game. based on value is it a good game to play?
asked by janice on July 13, 2013 
physics!
A 1.60kg bottle of vintage wine is lying horizontally in a rack. The two surfaces on which the bottle rests are 90.0° apart, and the right surface makes an angle of 45.0° with respect to the horizontal. Each surface exerts a force on the bottle that is
asked by Tiffany on February 7, 2011 
financial mathematics
bernard burrows rm8889 at 15%per annum simple interest. he agrees to settle the loan by paying x ringgit, 2x ringgit and 3x ringgit in two months, five months and nine months respectively.find the value of x using the present as the focal date
asked by Ali on June 10, 2016 
Resources and references
You've been asked to help with the revision of your organization's policy manual. As you edit the document, you're wondering whether or not several word choices are correct. For example, you don't know whether you should you use "alright" or "all right,"
asked by Sofiya on June 26, 2013 
literature
In the house on mango street, after she gets married, what does Sally do all day because her husband won’t allow her to do all that she wants? A. She sits and looks out the window and at her possessions. B. She talks to her friends on the telephone. C.
asked by Katie on October 9, 2017 
math
A small wheel of radius r is situated at the top of a ramp having an angle Î¸ = Ï€/3 rad At t = 0 the wheel is at rest and then it starts to rotate clockwise in the positive x direction with constant angular velocity Ï‰. Find the parametric
asked by John on October 31, 2013 
5th grade science
Can you check this question? 7. Which of the following is an instinctive behavior that an organism can inherit from its parents? a. a raccoon taking lids off trash cans to find food. b. a dog barking loudly when doorbell rings c. a seal balancing a ball on
asked by Jared on October 29, 2017 
Geography
I need to do a power point presentation on the Appalachian mountains. I need to find the geological history,rock structure,appearance,soil, vegetation,wildlife, and human activities. Can you please provide me with links with these information? Thanks so
asked by Sasha on April 23, 2007 
world studies
Which is a way that people are trying to find a balance between the need for resources and the need to protect the environment? To save more trees, people are using plastics for construction. Fishers are limiting their catch of endangered fish. Farmers are
asked by kid on November 26, 2018 
Please proofread my Essay
Could you please check for fragments, pronoun agreement, and tell me if I use first person all the way through. Thanks! Here is the format I am suppose to be following: a. Have an Introduction: Your introduction will tell readers what you knew about the
asked by Soly on November 17, 2006 
Bio Bio
You have just located a nucleolus in the nucleus. You are able to excise this area of the genome and express the genes of this chromosomal fraction in vitro (in a test tube). What genes would you most likely find expressed from this portion of the cell's
asked by Christine on July 22, 2006 
AP CALC
The function g is given by the formula g(x)= ∫[0,x/2] e^(t^2)dt. An equation for the tangent line to the graph of g at the point x=1 is a) y0.461=0.779(x1) b) y0.461=0.389(x1) c) y0.461=1.558(x1) d) y0.461=0.184(x1) e) y0.461=0.368(x1) I took
asked by Rachel on February 22, 2015 
Chemistry
An atmospheric scientist interested in how NO is converted into NO2 in urban atmospheres carries out two experiments to measure the rate of this reaction. The data are tabulated below. A: [NO]0 = 9.63 × 103 M, [O2]0 = 4.1 × 104 M t(s)
asked by Serena on March 2, 2014 
Physics
A bar of aluminum (bar A) is in thermal contact with a bar of iron (bar B) of the same length and area. One end of the compound bar is maintained at Th = 75.5°C while the opposite end is at 30.0°C. Find the temperature at the junction when the energy
asked by Chelsea on November 27, 2010 
Chemistry
An atmospheric scientist interested in how NO is converted into NO2 in urban atmospheres carries out two experiments to measure the rate of this reaction. The data are tabulated below. A: [NO]0 = 9.63 × 103 M, [O2]0 = 4.1 × 104 M t(s)
asked by help on February 23, 2012 
Medical Administrative Assistant
I need help adding some stuff to this exam please help Exam 028005 It has come to my attention after a conversation with a DMD Medical Supplies representative that some of our work for them has been subpar. Knowing we are a customer driven company I did
asked by Kara on December 18, 2014 
Calculus (Please check my work.)
This is my last chance to make at least a C in my AP Calculus course, so please tell me if I got these right or wrong so that I can fix them before it's due. Also, there was one I wasn't sure how to do, so if you can help me with that, it would be much
asked by Lindsay on December 14, 2013 
Grade 8 math
the hypotenuse of a right triangle is d. Find the sums of squares of the distances from the point of intersections of medians to the three vertices of the triangle. What? What does even mean? Why are they talking abou finding sums of squares if it's a
asked by Anna on January 9, 2017 
physics
In open heart surgery a much smaller amount of energy will defibrillate the heart. (a) What voltage is applied to the 5.00 µF capacitor of a heart defibrillator that stores 35.0 J of energy? kV (b) Find the amount of stored charge. mC
asked by taryn on February 17, 2013 
Math
The pH of a solution ranges from 0 to 14. An acid has a pH less than 7. Pure water is neutral and has a pH of 7. The pH of a solution is given by pH = logx where x represents the concentration of the hydrogen ions in the solution in moles per liter. Find
asked by Liz on May 23, 2016
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