Questions Asked on
September 14, 2012

chemistry
calculate the lattice energy of sodium oxide (Na2O) from the following data: Ionization energy of Na(g): 495 kJ/mol Electron affinity of O2 for 2e: 603 kJ/mol Energy to vaporize Na(s): 109 kJ/mol O2(g) bond energy: 499 kJ/mol Energy change for the reaction
asked by Meeeee 
Physics
Mary needs to row her boat across a 100m wide river that is flowing to the east at a speed of 1.0m/s. Mary can row with a speed of .0m/s a) If mary points her boat due north, how dar from her intended landing spot will she be when she reaches the opposite
asked by Jake 
chemistry
What is the mole ratio of benzene (C6H6) to noctane in the vapor above a solution of 15.0% benzene and 85.0% noctane by mass at 25 degrees Celcius? the vapor pressures of noctane and benzene are 11 torr and 95 torr.
asked by Wiped Out 
Physics
Hearing damage may occur when a person is exposed to a sound intensity level of 90.0 dB (relative to the threshold of hearing) for a period of 9.0 hours. One particular eardrum has an area of 1.90 104 m2. How much sound energy is incident on this eardrum
asked by Morgn 
math
Find the slope m of the tangent to the curve y = 5/ sqrt (x) at the point where x = a > 0. what is the slope?
asked by maura urgent! 
geometry
Algebra BD bisects
asked by Jane 
economics
Suppose the price of widgets falls from $7 to $5 and consumption of widgets rises from 15 widgets a month to 25 widgets. Calculate your price elasticity of demand of widgets. What can you say about your price elasticity of demand of widgets? Is it Elastic,
asked by steve 
physics
A waterskier is moving at a speed of 16.7 m/s. When she skis in the same direction as a traveling wave, she springs upward every 6.9 s because of the wave crests. When she skis in the direction opposite to the direction in which the wave moves, she
asked by Morgn 
chemistry
A solution was made by dissolving 5.15 mg of hemoglobin in water to give final volume of 1.00 mL. The osmotic pressure of this solution was 1.97 x 10^3 atm at 25C. Calculate the molar mass of hemoglobin. pi = iMRT i = 1 since hemoglobin is nonelectrolyte
asked by Wiped Out 
chemistry
At 23°C, Kp = 0.075 for the equilibrium: NH4HS (s) ↔ NH3 (g) + H2S (g) A sample of solid NH4HS is placed in a closed vessel and allowed to equilibrate. Calculate the equilibrium partial pressure (atm) of ammonia, assuming that some solid NH4HS remains.
asked by Nicole 
writing
Now that you've spotted the problems of shift of person and shift of number, revise the paragraph by removing these inconsistencies. Rewrite the paragraph, maintaining consistency by using first person plural when referring to the readers, and third person
asked by Anonymous 
Physics: Energy & Work Done
A spring of negligible mass has a force constant k = 1600 N/m. You place the spring vertically with one end on the floor. You then drop a 1.20 kg book onto it from a height of 0.8 m above the top of the spring. Find the maximum distance the spring will
asked by Anonymous 
physics
A wire tooth brace used by orthodontists. The topmost tooth is protruding slightly, and the tension in the wire exerts two forces at 16 º angle on this tooth in order to bring it back into alignment. If the forces have the same magnitude of 19.5 N, what
asked by marissa 
Business ManagementPrinciples of Management
I have some questions and answers. Can you please go over them and let me know how I did on it? 1. When a manager performs symbolic duties as the head of an organization, that manager is called a A. spokesperson. C. leader. B. figurehead. D. liaison. 2.
asked by Kati 
Physics
A partlyfull paint can has 0.83 U.S. gallons of paint left in it. (a) What is the volume of the paint, in cubic meters? (b) If all the remaining paint is used to coat a wall evenly (wall area = 12 m2), how thick is the layer of wet paint? Give your answer
asked by Emily 
math
Maria ran in a 42 km marathon she covered the first half of the marathon from 0600 to 0715 hours and stopped and rest. She resumed running was able to cover the remaining distance from 0720 to 0935 hours. What was Maria's average speed for the entire
asked by Jenibel 
orgo
What is the pH of a 5.00E2 M solution of acetylsalicylic acid, pKa = 3.52.
asked by Jess 
Physics
The cheetah can reach a top speed of 114 km/h (71 mi/h). While chasing its prey in a short sprint, a cheetah starts from rest and runs 46 m in a straight line, reaching a final speed of 83 km/h. (a) Determine the cheetah's average acceleration during the
asked by Claire 
Math Help
8. One nanometer is about 0.00000003937 of an inch. What is this number in standard notation? a. 3.937 x 10^8 b. 3.937 x 10^8 c. 3.937 z 10^7 d. 3.937 x 10^7 9. What is 3/8 written as a decimal? a. 2.33333... b. 0.375 c. 0.33333... d. 2.667 10. According
asked by Nyla 
Physics
Which of the following best describes kinematics? a) Kinematics is a part of mechanics that involves the description of motion. b) Kinematics is the branch of physics that deals with the motion of objects and the action of forces on the objects.
asked by Kevin 
Calc 3
Find the limit, if it exists. (If an answer does not exist, enter DNE.) lim (x, y)→(0, 0) of (x^2 + y^2)/[((x^2 + y^2 +64)^.5)8]
asked by Becky 
Math
2. Find the product of 2 1/2 and 2/5. a. 2 2/10 b. 2 3/7 c. 2 4/9 d. 2 9/10 3. Which of the following makes the statement true? 1/5^0 = ? a. 1 b. 1 c. 5 d. 0 4. The area of a certian state is 840,000 square miles. What is this area in scientific
asked by Nyla 
physics
An automobile accelerates from rest at 1.3m/s^2 for 19s. The speed is then held constant for 23s, after which there is an acceleration of 0.9m/s^2 until the automobile stops. What total distance was traveled? Answer in units of km.
asked by sam 
physical sicence
how fast must a ball be thrown upward to reach a height of 12 m?
asked by maria 
science; AP Chem
Dinitrogen oxide (N2 O) gas was generated from the thermal decomposition of ammo nium nitrate and collected over water. The wet gas occupied 124 mL at 21◦ C when the atmospheric pressure was 752 Torr. What vol ume would the same amount of dry
asked by Anonymous 
world history
The popularity of an individual Hindu deity was largely a reflection of a) its ranking by the Hundred Schools of Thought. b) the approval it received from Siddhartha Gautama. c) its preAryan origin. d) the size of its pyramids. I think it's A but I'm not
asked by anon 
chemistry
required to heat 38.0 g of copper (cu) from 122 degree celsius to 246 degree celsius
asked by Anonymous 
physics
Two bicyclists, starting at the same place, are riding toward the same campground by different routes. One cyclist rides 1120 m due east and then turns due north and travels another 1550 m before reaching the campground. The second cyclist starts out by
asked by Anonymous 
english
i need help please. What does Thomas F. Walsh, Jr's thesis propose about "Young Goodman Brown"? because young goodman brown is a fictional short story it does not reflect any truth about life? goodman brown enters the forest doubting the goodness of
asked by jay 
math
Steven collected data from 20 college students on their emotional responses to classical music. Students listened to two 30second segments from “The Collection from the Best of Classical Music.” After listening to a segment, the students rated it on a
asked by lewis 
AP Chemistry, Chem, science
Can anyone please help me with this problem?? =/ The reaction between solid sodium and iron (III) oxide is one in a series of reactions that inflates an automobile airbag. If 100g of sodium and 100g of iron(III) oxide are used in this reaction, determine:
asked by Layla 
physics
Lightrail passenger trains that provide transportation within and between cities are capable of modest accelerations. The magnitude of the maximum acceleration is typically 1.3 {\rm m}/{\rm s}^{2}, but the driver will usually maintain a constant
asked by kaitlyn 
chem
calculate the pH of 5x10^2 M of benzoic acid with pKa= 4.19
asked by Jess 
science; AP Chem
Divers know that the pressure exerted by the water increases about 100 kPa with every 10.2 m of depth. This means that at 10.2 m below the surface, the pressure is 201 kPa; at 20.4 m below the surface, the pressure is 301 kPa; and so forth. If the volume
asked by Anonymous 
Precalculus
he distance between 2 points (x1,Y1) and (x2,y2) is given by d = square root (x1x2)^2 + (y1y2)^2 a  pick 2 arbitrary points in 3 dimensions, (x1, y1, and Z1) and (x2,y2,z2) and plot these points. Not that there are 90 degrees between the xy, xz, and yz
asked by Greg 
calculus
To find the equation of a line, we need the slope of the line and a point on the line. Since we are requested to find the equation of the tangent line at the point (64, 8), we know that (64, 8) is a point on the line. So we just need to find its slope. The
asked by maura 
art
The Visual Elements: "Street, Dresden", 1907, oil on canvas by Ernst Ludwig Kirchner Describe the shapes in this painting. Are the shapes organic or geometric? Which ones? Describe how the shapes interact, or "touch" each other. Are the edges of the shapes
asked by Olivia 
physical science
the acceleration of gravity on the surface of venus is 8.9 m/s2. would a ball thrown upward from venus return to the ground sooner or later than a ball thrown upward with the same speed on the earth?
asked by tracey 
physics
A cannon ball is shot straight upward with a velocity of 72.50 m/s. How high is the cannon ball above the ground 2.30 seconds after it is fired? (Neglect air resistance.)
asked by Anonymous 
Physics
14. A racing car accelerates uniformly through three gears, changes with the following average speed: 20 for 2.0 s 40 for 2.0 s 60 for 6.0 s What is the overall average speed of the car?
asked by Mariam 
Math
How do i round off the decimal 0.9683 to the nearest tenth, hundredth, and thousandth
asked by Losa 
physical science
a force of 20 N gives an object an acceleration of 5 m/s2. (a)What force would be needed to give the same object an acceleration of 1 m/s2. (b) what force would be needed to give an accelerattion of 10 m/s2 ?
asked by tracey 
physical science
the 200g head of a golf club moves 40 m/s in a circular arc of 1.2m radius. How much force must the player exert on the handle of the club to prevent it from flying out of her hands at the bottom of the swing? ignore the mass of the clubs shaft.
asked by tracey 
Psychology
Given your knowledge of dualism, choose the best interpretation of presence of dualism in this excerpt from an Emily !@#$%^&inson poem: The brain is wider than the sky, For, put them side by side, The one the other will include With ease, and you beside.
asked by Lilly 
Stats
A large population has a mean of 200 and a standard deviation of 40. Which one of the following best describes the percentage of measurements that fall in an interval that is within two standard deviations of the mean?
asked by Natalie 
hp
each case of almond bars contains 9 smaller boxes. each smaller box contains 24 almond bars. how many almond bars are in each box
asked by Anonymous 
Math
Jim has a total of 77 red and blue marbles. The number of blue marbles is 5 more than twice the number of red marbles. How many red marbles are there?
asked by Terralyn 
Physics
A tennis ball with a speed of 14m/s is moving perpendicular to a wall. After striking the wall, the ball rebounds in the opposite direction with a speed of 11.41m/s. If the ball is in contact with the wall for 0.0112s, what is the average acceleration of
asked by sam 
Economics
A person is willing to pay $50 per visit for physical therapy, but she pays $35 per visit. This person receives a consumer surplus of $85 per visit. Is this true or false/
asked by Marie 
Economics
The demand for cosmetic surgery is more elastic than the demand for Botox treatments, would this be true or false? My thoughts are true.
asked by Marie 
Math
You decide to build a pyramid out of wooden blocks. Each block must rest on the corners off 4 other blocks. If there is one block on top and 36 on the bottom, what is the total number of blocks you will need to complete the pyramid?
asked by Carly 
chemistry
A typical adult body contains 55 \% water. If a person has a mass of 61.0kg , how many pounds of water does she have in her body?
asked by Anonymous 
Physics
Highway safety engineers build soft barriers so that cars hitting them will slow down at a soft rate. A person wearing a safety belt can withstand an acceleration of 300m/s^2. How thick should barriers be to safely stop a car that hits the barriers at
asked by sam 
Precalculus
The distance between 2 points (z1,Y1) and (x2,y2) is given by d = square root (x1x2)+ (y1y2)^2) a  pick 2 arbitrary points in 3 dimensions, (x1, y1, and Z1) and (x2,y2,z2) and plot these points. Not that there are 0 degrees between the xy, xz, and yz
asked by Greg 
calculus
Calculate the following integral: ∫ dx / x(1  √x)^2
asked by Robert 
CSU Fresno
Give an example of languages L1 and L2 that satisfy the conditions (a) L1L2=L2L1, (b) L2 is a proper nonempty subset of L1, and (c) L2≠{ε}.
asked by Vicky Muda 
psy315
a psychologist at a mental hospital was asked to determine whether there was any clear difference in the length of stay of patients with different categories of diagnosis. looking at the last 4 patients in each of the 3 major categories , the results in
asked by sandy 
Physics
Runner A is initially 2.4 km west of a flagpole and is running with a constant velocity of 8.4 km/h due east. Runner B is initially 2.2 km east of the flagpole and is running with a constant velocity of 7.4 km/h due west. What will be the distance of the
asked by Fiona 
college algebra
x y z rhs 1 1 2 3 2 1 6 3 0 3 4 13 i need to multiply some number and add to r3 answer quick!
asked by ann :) 
earth
waste produced by people along the east coast of the united states has been dumped into the atlantic ocean where it is distriuted y surface ocean currents, Which coastel area is most liekly to become polluted by this waste?
asked by Jane 
Chemistry hnrs
what is the electron configuration of vanadium?
asked by Pamela 
math
The "wapple" of a number is defined as the number of positive odd intergers less than that number. 1. what is the wapple of 19? 2.If the wapple of x is equal to 5, what is the wapple of x + 6?
asked by gary 
Algebra..
Find the slope of the straight line that passes through the given points or state that the slope is undefined. Then indicate if the line through the points rises (left to right), falls (left to right), is horizontal, or is vertical. 1. (7, 4) and (1, 1) 2.
asked by Pat6 
Physics
7. A cat pushes a ball from a 7.00 m high window, giving it a horizontal velocity of 0.20 m/s. How far from the base of the building does the ball land? (Assume no air resistance and that ay= g = 9.81 m/s2.)
asked by Brooke 
Physics
A diver running 1.1 m/s dives out horizontally from the edge of a vertical cliff and 3.3 s later reaches the water below. How high was the cliff? How far from its base did the diver hit the water?
asked by Ellise 
math 12
A)a shed, in the shape of a square based prism, is to have volume 800meters cubed. determin the dimentions of the shed, with the minimum surface area. B)how would the answer change if the minimum surface area did not include the bottem of the shed?
asked by neha 
Math
two trains are traveling toward each other adjacent tracks. one of the trains 230 feet long and is moving at a speed of 60 miles per hour. The other train is 220 feet long and is traveling at the rate of 70 miles per hour. Find the time interval between
asked by Taylor 
math
Lilly collects data on a sample of 40 high school students to evaluate whether the proportion of female high school students who take advanced math courses in high school varies depending upon whether they have been raised primarily by their father or by
asked by lewis 
Physics
Runner A is initially 2.4 km west of a flagpole and is running with a constant velocity of 8.4 km/h due east. Runner B is initially 2.2 km east of the flagpole and is running with a constant velocity of 7.4 km/h due west. What will be the distance of the
asked by Fiona 
• psychology
• Discussion of factors that enhance or impede information flow in each step of the process in the human memory model
asked by Michael holmes 
physics
A ladder 7.65 m long leans against the side of a building. If the ladder is inclined at an angle of 60.5° to the horizontal, what is the horizontal distance from the bottom of the ladder to the building?
asked by kim 
physics
A high fountain of water is located at the center of a circular pool as shown in the figure below. Not wishing to get his feet wet, a student walks around the pool and measures its circumference to be 39.0 m. Next, the student stands at the edge of the
asked by kim 
orgoo
what are the products of the reaction: HC3OH + (Na+NH2) ?
asked by Jess 
the exceptional child
physical disabilities affect young children's learning because: a.physical disabilities always affect thinking. b.cerebral palsy gets progressively worse. c. physical therapy takes time away from learning. d.their learning is primarily activitybased.
asked by Rashmi 
Physics(Please answer, thank you)
How do you determine the ymax? I know you have to use Q which I have values that were given to me as well as vo values but I am not sure what to do with these values.
asked by Hannah 
the exceptional child
Transactional relationships exist in the families because: a.Parents tell their children how to behavior.b. children adult influence each other's behavior.c.parents cannot really learn from their children. d.teachers often make home visits. (2) special
asked by Rashmi 
physics
a ball is thrown upward what is its maximun height? its initial vertical speed is 8.1 m/s and the acceleration of gravity is 9.8 m/s . neglet air resistance . answer in units of m
asked by fabiola 
Macroeconomics
Can someone point me in the right direction on how to solve this? 1. Suppose you have an economy with two factors of production (capital and labor), and suppose that capital's share of national income is 40% and that labor's share is 60%. Assume also that
asked by Robson 
Algebra..
HELP. Problems 4  7: Write an equation for the line in point/slope form and slope/intercept form that has the given condition. 4. Slope = 3/2 and passes through the origin. 5. xintercept = 4 and yintercept = 3
asked by 987:) 
7th Grade Math
(13) + (1)
asked by Lauren 
college algebra
x y z rhs 1 1 2 3 2 1 6 3 0 3 4 13 multiply some number by r2 and add result to r3(2) have to get o in r3 (1) steps:
asked by ann :) 
computer science
Which of the following is *not* a reason why a transmission signal might be corrupted or lost? 1. The protocol for the transmission is TCP/IP. 2. The cabling does not have any kind of shielding. 3. The copper used to connect the systems is contaminated. 4.
asked by unity jackson 
Math
Which is greater, the greatest whole number with 5 digits or the least whole number with 6 digits?
asked by Nick 
Linear Algebra
Solve the initial value problem: xdy/dx+4y=7x^310x for y(1)=4
asked by Brianna 
chemistry 121
A Canadian, driving in the U.S.A., fuels their car at a cost of US$3.72 per gallon (US). The current monetary exchange rate is 0.928 US$/Can$. The density of the fuel is 0.626 g/mL. What is the mass of Can$90.00worth of this fuel?
asked by skb 
chemistry
when you burn ionic and covalent compound using Bunsen burner,what you will see?
asked by Anonymous 
Geodetic Survey
a surveyor is trying to determine the change in hight h from the bottom to the top of a hill. If the height of instrument H is 4.5 ft the height of the object that he sights on the tower A is 6.5 ft and the zenith angle Z is 54deg 16' 25" determine the
asked by Teresa 
the exceptional child
Most early childhood professionals children’s agree that the terms inclusion and mainstreaming: A. Both refer to exceptional children’s participation in the general education curriculum. B. Mean the same thing. C. Are two different concepts. D. Both
asked by Rashmi 
government s1
Despite their difference , the Founding Fathers all agreed that
asked by Anonymous 
Geography
Is this correct? What line of longitude forms the other half of the prime meridian? When joined with the Prime Meridian the 180 degree of longitude forms a complete circle
asked by Sean 
Physics
The barrel of a rifle has a length of 0.916m. A bullet leaves the muzzle of a rifle with a speed of 621m/s. What is the acceleration of the bullet while in the barrel? A bullet in a rifle barrel does not have a constant acceleration, but constant
asked by sam 
physics
An airport has runways only 136m long. A small plane must reach a ground speed of 39m/s before it can become airborne. What average acceleration must the plane's engines provide if it is to take off safely from its airport? Answer in units of m/s^2.
asked by sam 
Math
Hi I am not good with math. Please tell me how to differentiate mixed numbers, order of operation,subtraction, divide and multiplication etc. Thanks!
asked by Leah 
math
choose a natural between 1 and 20 inclusive. what is the probability that the number is a mutiple of 3
asked by Anonymous 
Calculus
lim[x:81,(x/(1+sqrtx)  81/10) / (x81)]
asked by jay 
math
If you can buy 12 cans of juice for $8, how much will 18 cans cost ?
asked by kayla 
PHYSICS help!!!!!!
A commuter train travels between two downtown stations. Because the stations are only 1.36 km apart, the train never reaches its maximum possible cruising speed. During rush hour the engineer minimizes the travel time t between the two stations by
asked by neeba 
science
A 49 kg person drinks 270. g of milk, which has a "caloric" value of approximately 3.0 kJ/g. If only 16% of the energy in milk is converted to mechanical work, how high (in meters) can the person climb based on this energy intake? [Hint: The work done in
asked by Alyssa 
Antarctica
In 1973, Congress enacted the Endangered Species Act (ESA) to protect plants and animals from extinction. Many methods are used for protection. Residential or commercial development may be banned in an area that is set aside to protect animal or plant
asked by earl 
physics
A roller coaster travels 101 ft at an angle of 56.8 above the horizontal. How far does it move horizontally?
asked by jude 
chemistry
the vapour pressure of water at 20 degree celcius is 18 mm hg .if the relative humidity is 35 % the weight per litre of air at 20 degree celcius is ?
asked by anni 
7th Grade Physics
Given a homogenous liquid mixture of sodium chloride (salt) and water, what would be the best method to separate these substances? What is the process. Please explain.
asked by completeidiot 
Chemistry
Calculate the number of grams necessary of C6H12O6 to make 1.00 ml of 0.025 M glucose.
asked by Anonymous 
science
the ph of a 0.280m solution of a weak base. B has been measured ph 8.69. using this information. calculate the base ionisationconstant kbof b
asked by Emily 
economics
In what areas of the economy are jobs growing most rapidly? Is this due to a lack of technological innovation in these areas?
asked by Anonymous 
math
Billie wishes to test the hypothesis that overweight individuals tend to eat faster than normalweight individuals. To test this hypothesis, she has two assistants sit in a McDonald’s restaurant and identify individuals who order the Big Mac special for
asked by lewis 
political science
Political Participation What changed, if anything, in the American political culture between 2004 and 2008? Further, please feel free to examine changes to 2012, and how they might influence this year's November presidential and congressional elections.
asked by Anonymous 
math
If f(x) =kx^31 and f^1 (15)=2 find k
asked by jezebel 
Government
This is a summary of my notes from the article: Please read. Now I need help with putting it into a summary paragraph WHEN I FIRST MEET TAMMY DUCKWORTH in her suburban Chicago campaign office, she nearly mows me over with her $4,000 titanium wheelchair as
asked by Vicky 
Calculus
I'm supposed to find the limit as x approaches infinity of (2xsinx)/(x+cosx). I've thought about using the squeeze theorem, but I'm not sure it applies here. Can someone point me in the right direction? Thanks.
asked by Will 
Biology
If you added .1 M NaOH to 1 M HCO2H a few millimeters at a time what would happen?
asked by Unknown 
chmistry
Compound: Concentration: Measured deltaT LiCl 6.00 g/kg 0.492 deg C HCl 4.00 g/kg 0.389 deg C NaCl 6.00 g/kg 0.356 deg C Determine the value of the vant hoff factor for each salt for the experimentally measured delta T value. (kf=1.86) I have tried to
asked by Brunette 
college algebra
x y z rhs 1 1 2 3 2 1 6 3 0 3 4 13 i need to multiply some number and add to r3 and get o in r3 answer quick!
asked by ann :) 
PreCalculus need help in an Hour before test
y=f(x+5/2) I timesd x+5 by 2 to get rid of 2 at the bottom and timesd y by 2. Then to get rid of 2 from y i divided it, and i got this. y=1/2f(x+5) however my teacher got y=f(1/2(x+5)) what did i do wrong?
asked by Shreya 
math
find the average rate of change of F(x) on the intervals 1
asked by justyna 
physics
An object is dropped from a height H above the ground. This freefalling object requires 0.904 s to travel the last 34 m before hitting the ground. From what height H above the ground did the object fall? The acceleration of gravity is 9.8 m/s^2. Answer in
asked by maura 
Health and Nutrition
What is protein?
asked by April 
Health and Nutrition
What is a complete protein?
asked by April 
Health and Nutrition
What is a vegetarian example of a complete protein?
asked by April 
Algebra..
f(x)= x^2+3 ; g(x)=3x1 Check These Please? 1.(fg)(1) = 5 2. (f o g)(1) =10 How would you solve this? 1. (g o f)(x)
asked by Sara 
Health and Nutrition
Explain the role of amino acids in building protein.
asked by April 
physics
A lightbulb emits light that creates a shadow of a ball on a wall. If the radius of the ball is 12.1 cm, and the radius of the shadow is 25.5 cm, and the ball is 2.09 m away from the wall, how far is the lightbulb away from the wall?
asked by Anonymous 
Health and Nutrition
Describe risks associated with protein deficiency.
asked by April 
Health and Nutrition
Discuss risks (three or more) associated with consuming too much protein.
asked by April 
Math
This is the same equation as before just with different numbers. y=yo + (vo sin Q) t  1/2gt^2 This time the numbers are: 0 = 1.005 + (3.021 sin 30)t  1/2(9.8)t^2 4.9t^2  1.5105  1.005 = 0 This is the part where I am stuck. Did I do this correctly? sin
asked by Hannah 
Health and Nutrition
What are some healthy nutrient sources of protein?
asked by April 
Algebra 2
a tortoise crawling at a rate of 0.1 mph, the hare wants to rest 30 more minutes before chasing the turtle at 5 mph. how many feet must the hare run to catch the turtle?
asked by Anonymous 
physics
An object is dropped from a height H above the ground. This freefalling object requires 0.904 s to travel the last 34 m before hitting the ground. From what height H above the ground did the object fall? The acceleration of gravity is 9.8 m/s^2. Answer in
asked by maura 
math
What is 77 percent round to nearest tenth of a degcree
asked by chris 
Math
What is 0.000698 rounded to 2 significant figures?
asked by Beth 
chemistry
"The sun emits UV radiation that can have serious health consequences. In particular, socalled UVB radiation is mostly absorbed by the ozone layer in the upper atmosphere (altitudes of 10  50 km), but the part that reaches the earth can cause DNA
asked by Travis 
math
Kyra drove to visit her friend. She traveled 144 miles in 2 5/8 hours. What was her average speed?
asked by judy 
pure maths
Factorize Xsquare6x3
asked by princess 
Calculus
Check my work please? Determine if f(x)= (x^23x+2)/(1+x^2) has a horizontal asymptotes. If so, give the equation. So I took x^2 and divided everything by it. (x^2/x^2)(3x/x^2)+(2/x^2) / (1/x^2)+(x^2/x^2) Cancelled out some x's and have (3/x)+(2/x^2) /
asked by Greg 
Calculus with Analytical geometry
I'm stumped on this one. lim x1sin(1/x1) x>1
asked by Greg 
Calculus (Check)
This seems to easy. Check please. Find. Lim (x^2)4 x>2 e I substitute in 2 (2^2)4 e gives me 44 e So my answer is e^0 or 1.
asked by Greg 
math
The length of a field is three times its width. If the perimeter is 64 m, what is the width of the field?
asked by some girl 
math
Can u please help. The width of a rectangle is represented by w meters. Represent the length of the rectangle if it exceeds the width by 8 meters. Thank you
asked by kiki 
math
can you please help. If a plane travels 550 kilometers per hour, represent the distance it will travel in h hours. thank you
asked by kiki 
physics
A subway train starting from rest leaves a station with a constant acceleration. At the end of 7.94s, it is moving at 12.3864m/s. What is the train's displacement in the first 5.57388s of motion? Answer in unites of m.
asked by sam 
Physics
14. A racing car accelerates uniformly through three gears, changes with the following average speed: 20 for 2.0 s 40 for 2.0 s 60 for 6.0 s What is the overall average speed of the car?
asked by Mariam 
algebra 1
place parenthesis so answer = 14. 2x2+3 to 2nd power4+3x5.
asked by Zac 
Physics
If a satellite is orbitting the earth 710km above the earths surface, and it's velocity is 7,406.8 meters/sec, what is it's cetripedal acceleration??
asked by Bernie 
math
how much will Mary owe if she borrows $2,000 at a rate of 6% for 2 years?
asked by kayla 
logic
Can u please give me 2 own examples of contrariety,subcontrariety,subalternation,and,contradiction?PLEASE.
asked by Ally 
math
Francis ate 2/3 of a large pizza. Janette ate 1/4 of the same pizza. How much pizza did Francis and Janette eat in all?
asked by :) 
chemistry
if an iceberg has a volume of 8660 cubic feet, what is the mass in kg of the iceberg?
asked by Anonymous 
Algebra..
Help? If f = (1, 2), (2, 3), (3, 4), (4, 5), g = (1, 2), (3, 3), (5, 5), and h = (1, 0), (2, 1), (3, 2), 1. f+g 2. fg 3. f*g
asked by Sara 
Algebra..
How to Solve This? f(x)=x5 g(x)=(1)/(x) 1. h(x)=(1)/(x) 5
asked by TheMoney 
Algebra..
help? Give the slope and yintercept of the given line and then graph it. 8. 2x3y=6 9. y=2x 10. y=3 11. x+2=0
asked by :) 
Algebra..
Help ? Find the slope of the line that is a) parallel and b) perpendicular to the given line. 1. x=8 2. y=10
asked by Kenny 
physics
A 316kg boat is sailing 12.0° north of east at a speed of 1.60 m/s. 39.0 s later, it is sailing 36.0° north of east at a speed of 4.00 m/s. During this time, three forces act on the boat: a 31.4N force directed 12.0° north of east (due to an auxiliary
asked by marissa 
Integrated Marketing Communications
Research any firm local or foreign and present a report and critique of their marketing communications
asked by Lisa 
Algebra..
Write the standard form of the equation of the circle with the given center and radius. 1. center (2, 0) and r = 3
asked by Pango 
Integrated Marketing Communications
develop an IMC plan for a business.
asked by Rhea 
6th grade math
What is base measurement? thanks
asked by some girl 
Algebra
X+12=2x+6
asked by Anonymous 
economics
the currency in Great Britain is pound and the price of a particular British car is 12,000. suppose the exchange rate is 0.67 per dollar. what iis the price of the British car in United States dollars?
asked by ashley 
math
"If the tire is 48 inches around what is its radius?
asked by liczy 
English
In the Tale of Two Cities question. Besides the foreshadowing of the blood bath to come, what does the people's response to the spilled wine show us?
asked by kayla 
Economics
The country of New Zealand decides to take 50% of its nation’s lottery money and use it to buy 1,000 acres of common grazing land in every county upon which any New Zealand shepherd may graze their sheepfor free, no strings attached. Based upon what you
asked by Deborah 
Algebra 2 (Math)
If A=(0,17), B=(4,5), and C=(12, 1), what is the length of the altitude from C to AB
asked by Hannah 
Business Law
Can someone give me an example or template how to write a practicum proposal for mediation.
asked by R.T. 
math
a piece of wire 3.5m long was cut into lengths each measuring 0.05m long.Calculate the number of pieces obtained.
asked by saeed 
chemistry
Find the potential energy, V(r), and the magnitude of the force,  F , associated with: (a) the interaction between a proton and an electron separated by a distance of 0.529 Å (b) the interaction between the nucleus of Neon (Ne) and an electron separated
asked by Taylor 
social studies
what are the 4 maps. phyical, population , polical waht is the last one please
asked by carina 
Math
Which is the greatest number and why: .004 or .04
asked by Losa 
social studies
what are the 4 maps. phyical, population , polical waht is the last one please
asked by carina 
Chemistry
what is 39.5 grams of HCl in moles?
asked by Victoria 
Physics
A certain meter stick is calibrated in millimeters (the distance between two consecutive marks is ONE mm). A student measured the longest edge of a book and found that it was greater than 364 mm and less than 365 mm, but it was CLOSER to 365 mm than 364
asked by Rene 
Stats
Suppose X & Y are two independent stocks' returns with: E(X) = E(Y) =15% and V(X) = 144, V(Y) = 256 Problem 1. Buy half X and half Y, so w1 = w2 = 0.5 and Z = (X+Y)/2 Note: The answer says that the variance is 100 but I thought it would be 200. Since I
asked by Matt 
Biology
If you added .1 M NaOH to 1 M HCO2H a few millimeters at a time what would happen?
asked by Unknown 
6th grade math
9 + x = 17 I know that x=8 but how did you get it Thanks
asked by some girl 
Chemistry
How many watts are in a kWh? Or how do you convert 30 kWh into joules/sec?
asked by taylor 
geometry
express 0.000 000 291 in scientific notation
asked by john paul 
6th grade math (please please answer!)
9 + x = 17 I know that x=8 but I don't know how you figure it out
asked by some girl 
Math
If you had a new business and you had 30 customers the first week and 55 customers the second week and 80 customers the third week, what would you project for week 4? Explain how you arrived at your answer.
asked by nate 
6th grade math
entify if the problem shown below is an example of the commutative, associate or distributive property. Explain your answer. (2 + a) + 7 = 2 + (a + 7) thanks
asked by :)