Questions Asked on
September 13, 2010

PHY
Two snowcats tow a housing unit to a new location at McMurdo Base, Antarctica, as shown in Figure 446. The sum of the forces A and B exerted on the unit by the horizontal cables is parallel to the line L, and FA = 4300 N. Determine FB and the magnitude of
asked by AMI 
MATH
WRITE EACH ADDITION VERTICALLY. DECIDE WHICH NEW GROUPS YOU WILL MAKE. THEN, ADD TO SEE IF YOU WERE CORRECT.
asked by BYNN 
chemistry
Write formulas for the compounds that form from {\rm Rb} and each of the following polyatomic ion: {\rm NO}_{3}^{}, {\rm SO}_{4}^{2}, {\rm PO}_{4}^{3}.
asked by Anonymous 
physics
If a car rolls gently(vo=0) off a vertical cliff, how long does it take to reach 85km/h?
asked by john 
physics
A wood block, after being given a starting push, slides down a wood ramp at a constant speed. What is the angle of the ramp above horizontal? The fact that there aren't any numbers involved here and a certain angle is required confuses me. I know it
asked by Alura 
chemistry
A solution is made at room temperature containing 90 g of NaCl and 200 g of water. It is brought to a temperature of 50°C. What are you most likely to see? (Select all that apply.) A. a solution with a few crystals at the bottom B. all the solid dissolve
asked by KSLE 
physics
A child's toy consists of a piece of plastic attached to a spring, as shown below. The spring is compressed against the floor a distance 1.8 cm and released. If the spring constant is 107 N/m, what is the magnitude of the spring force acting on the toy at
asked by storm 
Chemistry
I need help setting up this problem: Ethylene glycol has a specific gravity of 1.1088 at room temperature, What is the volume of 1.00 kg of ethylene glycol? What is the volume of 2.00 lb of ethylene glycol? Using 25 degrees Celsius.
asked by MW 
chemistry
the mole fraction of urea (molar mass = 60g/mole) in a solution prepared by dissolving 16g of urea in 39g of h2o
asked by jessie 
math
A roulette wheel has 18 red slots and 18 black slots numbered alternately with the numbers 1 through 36. Two green slots are numbered 0 and 00. The winning number is determined by the slot into which a single marble rolls. Players are not allowed to bet on
asked by Sarah 
Physics Gauss
A long, thin straight wire with linear charge density λ runs down the center of a thin, hollow metal cylinder of radius R. The cylinder has a net linear charge density 2λ. Assume λ is positive. Find expressions for the electric field at the following
asked by David D. 
Chemistry
Alicia's cheapskate boyfriend gave her a ring he claims is 24 carat gold. Alicia is skeptical. After chem class the next day she measures the mass of the ring, finds the volume of the ring by water displacement, and then calculates the density of the ring.
asked by Patrice 
statistics
Scores on a certain test are normally distributed with a variance of 14. A researcher wishes to estimate the mean score achieved by all adults on the test. Find the sample size needed to assure with 95% confidence that the sample mean will not differ from
asked by Sarah 
statistics
In a survey of 5100 TV viewers, 40% said they watch network news programs. Find the margin of error for this survey if we want 95% confidence in our estimate of the percent of TV viewers who watch network news programs. Hint, find the CI using 1PropZInt,
asked by Rachel 
physics
a basketball player can leap upward 0.5m. what is his initial velocity at the start of the leap?
asked by chris 
9 th science
distinguish between tolerance range and optimal range
asked by jin 
physics 1
In coming to a stop a car leaves skid marks 92m long on the highway. Assuming a decceleration of 7.00m/s^2, estimate the speed of the car just before braking.
asked by john 
physics
A fisherman's scale stretches 3.9 cm when a 2.8 kg fish hangs from it. (a) What is the spring stiffness constant? N/m (b) What will be the amplitude and frequency of vibration if the fish is pulled down 2.7 cm more and released so that it vibrates up and
asked by storm 
health
Identify at least five indicators of project failure that manifest themselves in this case study. Are these right ? these are a few i have came up with: organized inertia lack of clarity of pupose lack of landor project status report insufficient
asked by brian 
Biochem
HEPES, is a commonly used component of physiological buffers. The PKa of the protonated amino group of HEPES is 7.55 at 25C. Describe the preparation of 1.00L of 0.100M HEPES buffer, pH 8.00, from the sodium salt of the basic form of HEPES (MW 260.3), .0M
asked by Angel 
Physics
A hockey puck sliding on a frozen lake comes to rest after traveling 160 m. If its initial velocity is 2.3 m/s, what is its acceleration (assumed constant)? Answer in units of m/s2.
asked by STOW 
physics
A helicopter is rising at 5.1 m/s when a bag of its cargo is dropped. (Assume that the positive direction is upward.) (a) After 2.0 s, what is the bag's velocity? (b) How far has the bag fallen? (c) How far below the helicopter is the bag?
asked by penny 
7th grade
What is the unscrambled fruit or vegetable with the letters bekrechuryl?
asked by Frederick 
Physics
A man lifts a 2.0 kg stone vertically with his hand at a constant upward velocity of 1.5 m/s. What is the magnitude of te total force of the stone on the man's hand?
asked by Chelsea 
physics 2
A thin nonconducting rod is bent to form a semicircle of radius R. A charge Q is uniformly distributed along the upper half and a charge Q is uniformly distributed along the lower half, as shown int he sketch at the right.find E vector at P, the center
asked by peter 
math
write each addition vertically.decide which new groups you will make.then,add to see if you were correct. 256+1273___________ a new ten?____________ a new hundred?_________ a new thousand?____________ need answers and please explain
asked by Tracy 
geometry
point G is the midpoint of EF EG= 4x+12 and EF= 2x+30. How do i find GF?
asked by k 
chemistry  vapor pressure
the vapor pressure of pure water at 25C is 23.8 torr. determine the vapor pressure (torr) of water at 25 C above a solution prepared by dissolving 35g of urea (a nonvolatile, nonelectrolyte, MW = 60.0G/MOL) IN 76G of water. answer:21 i just want to know
asked by billy 
physics
An object is shot from the back of a railroad flatcar moving at 40 km/h on a straight horizontal road. The launcher is aimed upward, perpendicular to the bed of the flatcar. The object falls: a) in front of the flatcar b) behind the flatcar c) on the truck
asked by Antonio 
Physics
A rocket is fired vertically with an upward acceleration of 30 m/s2. After 20 s, the engine shuts off and the rocket then continues rising (while in freefall). The rocket eventually stops rising and then falls back to the ground. (a) What is the highest
asked by Jackie 
hcs 577
Why are charges not reported as revenue for health care organizations?
asked by keisha 
molal
the freezing point of ethanol (C2H5OH) is 114.6C. the molal freezing point depression constant for ethanol is 2.00C/m. what is the freezing point (C) of a solution prepared by dissolving 50.0 g of glycerin (C3H8O3, A nonelectrolyte) in 200 g of ethanol.
asked by lisa 
College Physics
A particle experiences a constant acceleration that is north at 100 m/s^2. At t=0, its velocity vector is 60 m/s east. At what time will the magnitude of the velocity be 100 m/s?
asked by Chelsea 
European History
What are the advantages and disadvantages of Europe’s geography?
asked by Charbene 
Physics
a ball is thrown up onto a roof, landing 4.70 s later at height h = 24.0 m above the release level. The ball's path just before landing is angled at = 62.0° with the roof. (a) Find the horizontal distance d it travels. (Hint: One way is to reverse the
asked by Antonio 
physics
if you jump upward with a speed of 2mls, how long will it take before you stop rising?
asked by chris 
ScienceChemistry
Analysis questions: A) What evidence is there that the gas bubbles formed in the first part of the investigation were hydrogen gas? Answer: Evidence there was that proved that the gas bubbles formed in the first part of the investigation were hydrogen gas
asked by Immy 
English 2
12. In "Two Kinds", what motivated Jingmei to keep silent about her performance at the piano recital, never discussing the recital with her mother? a. She fears her mother feels betrayed by her failure b. She thinks her mother will become angry if she
asked by mysterychicken 
Physics
A cat rides a merrygoround turning with uniform circular motion. At time t1 = 2.00 s, the cat's velocity is (3.00 m/s) + (2.70 m/s) , measured on a horizontal xy coordinate system. At t2 = 5.90 s, its velocity is (3.00 m/s) + (2.70) . What are (a) the
asked by Antonio 
chem
How much water would be needed to completely dissolve 1.64 L of the gas at a pressure of 750 torr and a temperature of 21 C? Henrys law constant is .145 M/atm.
asked by moe 
statistics
For this problem, assume the balls in the box are numbered 1 through 9, and that an experiment consists of randomly selecting 3 balls one after another without replacement. What probability should be assigned to the event that at least one ball has an odd
asked by Laura 
math
how do you convert .83 to a fraction
asked by bren 
Math
What is the pattern for 3, 19, 99, 499, 2499
asked by Will 
chemistry
A solution of sodium nitrate, NaNO3, in 200 g of water is saturated at 50°C. If the solution is cooled to 20°C, how many grams of sodium nitrate will precipitate from the solution?
asked by KSLE 
spanish
please check my homework. 1. Yo__estoy___ en mi casa (in my house). 2. Jose, María, y yo _____estoy____ alegres. 3. Mario, tú, y yo ____estoy______ en el cine (at the movies). 4. El perro ___estamos_____ en el parque (at the park.) 5. Usted ____esta_____
asked by whitney 
trig
Sitting in your sailboat, you see a lighthouse 500 feet away. Looking up at a 20°angle, you see the light at the top of the lighthouse. How far off the ground is the light in the lighthouse? Round your answer to the nearest tenth.
asked by Anonymous 
physics
Two cars both start from rest and have the same constant acceleration. When radar is used to measure the velocity of each car, car A is found to be moving twice as fast as car B. At the instant the radar is used, car A has a displacement that is ______
asked by Joey 
Physics
Upon spotting an insect on a twig overhanging water, an archer fish squirts water drops at the insect to knock it into the water. Although the insect is at distance d from the fish along a straightline path at angle $ (as in the figure here), a drop must
asked by Antonio 
Physics
A particle leaves the origin with an initial velocity = (6.91 ) m/s and a constant acceleration = (  2.38  2.79 ) m/s2. When the particle reaches its maximum x coordinate, what are (a) its velocity, (b) its position vector?
asked by Antonio 
Physics
A car slams on its brakes, coming to a complete stop in 4 sec. The car was traveling north at 60 mph. Calculate the acceleration
asked by April 
GEOMETRY HELP!
Consider the following diagram and fill in the table: It's a diagram of circles with points around the circumference based off of the table. The table reads # of Points: 2, 3, 4, 5, 6 # of Regions: 2, 4, 8, ?, ? For the 5 points I got 16 regions when i use
asked by Leasha 
molal
the freezing point of ethanol (C2H5OH) is 114.6C. the molal freezing point depression constant for ethanol is 2.00C/m. what is the freezing point (C) of a solution prepared by dissolving 50.0 g of glycerin (C3H8O3, A nonelectrolyte) in 200 g of ethanol.
asked by lisa 
physics
A stone is thrown horizontally with an initial speed of 10 m/s from the edge of a cliff. A stop watch measures the stone's trajectory time from the top of the cliff to the bottom to be 4.3 s. What is the height of the cliff?
asked by Indira 
Geometry
Consider the following diagram and fill in the table: It's a diagram of circles with points around the circumference based off of the table. The table reads # of Points: 2, 3, 4, 5, 6 # of Regions: 2, 4, 8, ?, ? For the 5 points I got 16 regions when i use
asked by Leasha 
physics
A man is pulling on a rope with a force of 65 N directed at an angle of 26◦ to the horizontal. What is the xcomponent of this force? Answer in units of N.
asked by Brooke 
arithmetic
james has a metal fame with an 8.32 inch perimeter. if the sides are .04 inches thick, what is the perimeter of the inside of the frame
asked by natasha 
SCIENCE
A car going at 30 m/s undergoes acceleration of 2 m/s^2 for 4 sec. What is its final speed? How far did it travel while it was accelerating? acceleration=the change in velocity/(divided by) the change in time plz help thx
asked by Happy Face 
gr 12 physics
A person standing at the edge of the water and looking out at the ocean/ The height of the person's eyes above water is h=1.6m. and radius of the earth is R=6.38x10^6m How far is it to the horizon. In other words, what is the distance d from the person's
asked by fan 
math 5 grade
longest multiplication combination for 210
asked by zahra 
Geometry
Consider the following diagram and fill in the table: It's a diagram of circles with points around the circumference based off of the table. The table reads # of Points: 2, 3, 4, 5, 6 # of Regions: 2, 4, 8, ?, ? For the 5 points I got 16 regions when i use
asked by Leasha 
math
When 2 dozen cans of food are placed in a bucket, the mass is 4560 g. When 18 cans of food are placed in the same bucket, the mass is 3480 g. Find the mass of the bucket?
asked by brebre 
Physics
At t = 0, a stone is dropped from a cliff above a lake; 2.0 seconds later another stone is thrown downward from the same point with an initial speed of 33 m/s. Both stones hit the water at the same instant. Find the height of the cliff.
asked by Hannah 
SCIENCE!!ANONYMOUS PLEASE ANSWER MY QUESTION!
plz answer the question we were talking about plz plz. Go back to the problem. I got 184 but the worksheet answer says 136 which is correct?? plz help!! thx
asked by Happy Face 
structure / physic
1. Aquarium (Retaining Buttresses) Background: In a liquid, pressure develops from the weight of the liquid above any point. That pressure is called Hydrostatic pressure and acts equally in all directions. The pressure at any given depth is given by the
asked by katherine 
Physical chemistry
Calculate the pressure exerted by 1.0 mol C2H6 behaving as a perfect gas
asked by Melissa 
Geometry
Consider the following diagram and fill in the table: It's a diagram of circles with points around the circumference based off of the table. The table reads # of Points: 2, 3, 4, 5, 6 # of Regions: 2, 4, 8, ?, ? For the 5 points I got 16 regions when i use
asked by Leasha 
physics
A thin nonconducting rod is bent to form a semicircle of radius R. A charge Q is uniformly distributed along the upper half and a charge Q is uniformly distributed along the lower half, as shown int he sketch at the right.find E vector at P, the center
asked by peter 
physics
A boy whirls a stone in a horizontal circle of radius 1.3 m and at height 2.0 m above level ground. The string breaks, and the stone flies off horizontally and strikes the ground after traveling a horizontal distance of 9.8 m. What is the magnitude of the
asked by Antonio 
physics
a man walks 10 meters in a direction of 20 degrees North of East, then 20 meters in a direction due west. What is his total displacement vector in component form
asked by Anonymous 
Physics
A relay race is run along a straight line track 300.0 m long running south to north. 1st runner  starts at the South end of the track and passes the baton to a teammate at the north end of the track. 2nd runner  races back to the start line and passes
asked by Kayla 
biology
Which of the following problems do immigration and emigration pose for demographers?
asked by christy 
Calculus
Let F(s)=5s2+5s+4 . Find a value of d greater than 0 such that the average rate of change of F(s) from 0 to d equals the instantaneous rate of change of F(s) at s=1. d=
asked by Melissa 
chemistry
How many oxygen atoms are in 10.3 g of CuSO4*5H2O? What is the mass percent of carbon in C(12)H(22)O(11)?
asked by Sarah 
math
Between what two consecutive whole numbers is the square root of 75
asked by john 
7th grade
this is from homework work book . write each fraction or mixed numberas a decimal. use bar notation if the decimal is a repeating decimal
asked by naida 
college economics
Assume Nebraska and Virginia each have 100 acres of farmland. The following table gives hypothetical figures for yield per acre in the two states: Nebraska Virginia Wheat 15 5 Cotton 7 4 Who has the comparative advantage in the production of wheat? *For
asked by Stephanie 
4th grade
i am a 5 digit number my tens digit is the sum of my hundreds digit and thousands digit. my tens digit is twice my ones digit.my hundreds digit is 1 more than zero.my thousands digit is seven times my hundreds digit.my ten thousands digit is the same as my
asked by luzia 
Data Communication Networking
Fillin the Blank: The ____ layer of the OSI model performs a series of miscellaneous functions necessary for presenting the data package properly to the sender or receiver. Choices: transport presentation applications sessions
asked by Shah 
phy
Two crates, of mass m1 = 60 kg and m2 = 130 kg, are in contact and at rest on a horizontal surface (Fig. 454). A 620 N force is exerted on the 60 kg crate. The coefficient of kinetic friction is 0.15. (a) Calculate the acceleration of the system.(to the
asked by AMI 
Physics
I have a quick question, If a ballplayer catches a ball 3.0s after throwing it vertically upward. With what speed did he throw it, and what height did it reach?
asked by Jenna 
math
forgot my math book at school, i need the questions saxon math grage 6 lesson 14
asked by kolbi 
chemistry
In the movie "The Raiders of the Lost Arc", Indiana Jones and his guide play catch with a gold idol. The idol had a volume of about 1.30 L. In order to determine whether they could really play catch with the idol, calculate the weight (in pounds) of the
asked by anon 
math
write each addition vertically.decide which new groups you will make.then,add to see if you were correct. 256+1273___________ a new ten?____________ a new hundred?_________ a new thousand?____________ need answers and please explain
asked by Tracy 
MATH
Given the GCF or LCM, what else do you know about each pair of numbers? a) Two numbers have GCF of 2. b) Two numbers have an LCM of 2. Please and thankyou!
asked by Vanessa 
high school
what arguements did the thinkers of the classical civilzations of greek, china, and india use to explain and justify the great differences in social status and material wealth
asked by Anonymous 
chem
What mass of sucrose should be combined with 524 g of water to make a solution with an osmotic pressure of 8.50 atm at 270 K? I keep working this and end up with 68.81g but it is not right, any help?
asked by moe 
European History
What is the relationship between the study of geography and the study of history?
asked by Charbene 
Physics
An airplane can reach a takeoff speed of 45 m/s (from rest) in 7.0 seconds. What is the minimum runway length required for a safe takeoff?
asked by Kyle 
QNT561
Refer to the Baseball 2005 data, which reports information on the 30 major league teams for the 2005 baseball season. a. Select the variable team salary and find the mean, median, and the standard deviation. b. Select the variable that refers to the age
asked by Anonymous 
Chemistry
Oxygen reacts 1:2 with sodium and is a colourless gas; chlorine reacts 1:1 with sodium and is a yellow gas; neon does not reacts with sodium and is a colourless gas. Suppose that a new element , pretendium, has been dicovered, and it is noted that this
asked by Anonymous 
Physics
how much work is required to extend an exercise spring by 15 cm if the spring constant k has the value of 800 N/m
asked by John 
physics
A spring with a spring constant of 1.50 102 N/m is attached to a 1.2 kg mass and then set in motion. (a) What is the period of the massspring system? s (b) What is the frequency of the vibration? Hz
asked by storm 
science
Spider plants, tulips and potatoes can grow from seeds. How are their other ways of reproducing alike?
asked by cheyenne 
math
a person has $4 in nickles, quarters, and dimes. there is a total of 36 coins altogether. the number of quarters is 4 less then the number of dimes. Algerbaicly determine the number of each type of coin using a system of 3 equations with 3 variables.
asked by Bob 
Physics
A car is driven east for a distance of 46 km, then north for 27 km, and then in a direction 35° east of north for 24 km. Determine the angle (from east) of the car's total displacement measured from its starting direction.
asked by Evin 
maths
perform the indicated operation and simplify 1/16+3/32
asked by Anonymous 
Physics
Kyle is flying a helicopter and it is rising at 6.0 m/s when he releases a bag. After 2.0 s (a) what is the bag's velocity? 13.6 m/s (b) how far has the bag fallen? (c) how far below the helicopter is the bag?
asked by Billy 
Math
Explain how you would use a number line to round 148 to the nearest ten.
asked by June 
chem "help"
What is the ratio of the activities of Zn 2+ and Pb 2+ in a solution that is in equilibrium with respect to sphalerite and galena?disregard hydrolysis effect
asked by moon 
Statistics
An educator wants to estimate the proportion of school children in Boston who are living with only one parent. Since their report is to be published, they want a reasonably accurate estimate. However, since their funding is limited, they do not want to
asked by Sarah 
SCIENECE!!
A car going at 30 m/s undergoes acceleration of 2 m/s^2 for 4 sec. How far did it travel while it was accelerating?? Plz help thx
asked by Happy Face 
math
If 5/17 of a region is shaded, what fraction is not shaded?
asked by Alexander 
Science (Nutrition)
Which hormone signals the pancreas to secrete bicarbonate into the small intestine? Which hormone tells the pancreas to secrete pancreatic lipases, proteases, and amylases into the small intestine?
asked by Stacy 
geometry
1) In a regular polygon the difference between the interior angles of a (n1)sided polygon & (n+1)sided polygon is 9. find n? 2) In a regular polygon the difference between the exterior angles of a (n1)sided polygon & (n+2)sided polygon is 6. find n?
asked by Anoop 
calculus
Find all possible radii of circle centered at (3,6) so that the circle intersects only one axis
asked by Jack 
Math  asymptotes
Identify all asymptotes. 1. y= 1 / 2√x^2  3x the asymptotes I got were: vertical: 1 & 4 horizontal: 0 Is this it or are there more? 2. y= x^32x / x^2 + 1 I believe there are no asymptotes? Is this correct?
asked by Jared 
Child Psychology
By the age of ___,a child's perceptual map for phonetic discrimination is A. one month B. six months C. one year D. five years
asked by Anonymous 
statistics
A hotel installs smoke detectors with adjustable sensitivity in all public guest rooms. (a) State the null and alternative hypotheses. (b) Define Type I and II error. What are the consequences of each? (c) Which is more to be feared, and by whom? (d) If
asked by Shon 
latin
WHAT DOES SILVAS CLARAS INSULAE MAGNAE SPECTATIS MEAN IN ENGLISH?
asked by BONNIE 
statistics
Use Excel to find the pvalue for each test statistic.a. Righttailed test, t = +1.677, n = 13 b. Lefttailed test, t = −2.107, n = 5 c. Twotailed test,t = −1.865, n = 34
asked by kim 
12th grade
solve (24e)^1/3 / (3e)^1/3
asked by gav 
6th grade math
how can you change a one dollar bill into exactly 50 coins, using at least one penny, one nickel, one dime and one quarter please?
asked by cameron 
physics
Two parallel plates, separated by 10 mm, are charged to a potential difference of 50 V (that is, one plate is 0 V and the other plate is 50 V). Which of the following statements are true? the electric potential at the midpoint between the plates is 50 V
asked by VJC 
Chemistry
Which metals are good conductors of electricity? I only need like 3. This is what I have: Copper, Gold, and Silver. Is that good?
asked by Anonymous 
hcs 577
5. Do health care organizations typically get paid based on their established charges? If not, explain how they do get paid.
asked by keisha 
9th grade math
Translate the phrase into an expression The product of 6 and a number y how would i write that?
asked by Allyson 
physics
PLEASE HELP !!!!!!Find the acceleration reached by each of the two objects shown in figure below if the coefficient of kinetic friction between the 7.00 kg object and the plane is 0.250. img411.imageshack.us/img411/5841/p449.gif I keep getting 3.9=a
asked by bill 
Math
Please help!! We can determine the time it would take an object to fall (if there were no air resistance) by using the formula where d is the distance.t=1/4sq.root of d, d being the distance 1. We can determine the time it would take an object to fall (if
asked by Ashley 
9th Grade Algebra 1
I need someone to tell me how to do these kinds of problems (In great detail please) 5x=92x 8x10=4x+14
asked by Nicole 
physics
In preparing to shoot an arrow, an archer pulls a bowstring back 0.43 m by exerting a force that increases uniformly from 0 to 268 N. What is the equivalent spring constant of the bow? N/m
asked by storm 
Geography
What is the largest river that empties into the Pacific Ocean?
asked by Kathy 
Physics Flux
The electric flux through the surface shown in Figure Ex27.10 is 15.0 Nm2/C, and the electric field makes an angle á = 70° with the surface. What is the electric field strength? The surface is a 10cm by 10cm square.
asked by David 
Psych
Can someone please give me an example that illustrates how one's cognitive processes can shape some aspect of personality. thank you?
asked by Carmen 
english
How do I teach my first grader the parts of a sentence. She gets the subject confused with predicate. She had a test and she was given a 33F. I want her to succeed in school. She scored 100 in her reading and math. Please help me!
asked by Keysha 
scinece
In the United States, rank order the users of energy from smallest to biggest: Smallest Biggest a) industry home transportation b) transportation industry homes c) homes industry transportation d) homes transportation industry e) transportation homes
asked by pam 
health
Case Study â€“ Memorial Health System CPOE Implementation Identify at least five indicators of project failure that manifest themselves in this case study. 2. For each of those indicators, describe what you might have done differently to eliminate or
asked by brian 
Chemistry
A chemist carries out a reaction between 10.0g of sodium and 20.0g chlorine. Which reactant element is present in excess? What quantity of sodium chloride is produced? What quantity of the elment in short supply would have been required to react with all
asked by Austin 
Data Communications / Networking
True Or False: Network Architectures are cohesive layers of protocols defining a set of communication services.
asked by Shah 
12th grade math
Identify the domain and range: 1.) y = x^2 / 4x^2  1 2.) y = 3 / (x+2)^2 + 1 3.) y = ³√x^2
asked by Nicki 
science
how can my son a 5th grader be able to design an expermient with a lab report that theaches others how to use a balance correctly
asked by Alexa 
Physics: Data Analysis  Power Law
In an experiment, two variables quantities 'x' and 'y' were measure. The relation between x and y is thought to be y=ax^(1/2) x(m)+/ 0.01m 0.10 0.20 0.40 0.80 1.00 y(s) +/ 0.05s 0.64 0.90 1.27 1.80 1.90 a) What will you graph in the y and x axis in
asked by Shaila 
English
How did Arthur Miller use the witch trials to represent the McCarthy witch hunt?
asked by Alexis 
statistics
Solve the problem. The lifetime of a new brand of light bulb can be described by a Normal model with a mean of 2000 hours and a standard deviation of 250 hours. Find the percentage of light bulbs that will last more than 2600 hours. A.) 100% B.) 5% C.)
asked by Anonymous 
Physics
Annie is walking to school leisurely at a speed of 1.0 m/s for the first half of her trip. She then remembers that her physics teacher told her that she must average 2.5 m/s to make it to school on time. Realizing she might be late, she starts running.
asked by Dianne 
science
When a parent radioactive nucleus splits by ejecting an alpha particles (two protons and two netutrons), the remaining nucleus has ____ the original nucleus. a) two protons and two neutrons more than b) two protons more and two neutrons less than c) two
asked by pam 
Math  function problems
1) A box with a square base has a total surface area of 12m^2. Express the volume of the box as a function of the base edge. 2) A 10 foot tall lamppost causes a child 4 feet tall to cast a shadow of x feet on the ground. If the distance along the ground
asked by Amie 
Physic
It is possible to shoot an arrow at a speed as high as 121 m/s. (a) If friction is neglected, how high would an arrow launched at this speed rise if shot straight up?
asked by Matt 
berkner
what would happen if correct new edvidence was discovered that did not agree with a weel established scientific theory?
asked by kj moore 
English
Can you please check if the following questions are grammatically correct? Thank you very much. 1)What does Bassanio need money for? OR Why does.... He needs money so that he can go to Belmont and court Portia. 2) What solution does Antonio suggest to him?
asked by Franco 
analogy
large is to small, feast is to
asked by peter 
physics
A roller coaster travels 10.6 m at an angle of 15.0◦ above the horizontal. How far does it move horizontally? Answer in units of m.
asked by Wendia 
Algebra
we need help and the steps to solve 5xy=18 and 5x+6y=38. we need the ordered pairs if any. So far we came up with (6,9). Thanks Team A
asked by Team A 
math
What is the Rule for a function table with the following information. A child's admission is $4 more than half an adults admission. Input (x) as follows: 20, 26, 30, and 42. Thanks
asked by Michael 
hcs 577
4. Why the U.S. health care system is considered complex
asked by keisha 
math
From a point on a straight road, two cars are driven in opposite directions, one at 44 miles per hour and the other at 35 miles per hour. In how many hours will they be 237 miles apart?
asked by karla 
math
2/3x6=22
asked by madelyn 
More Math
I do not understand this: Evaluate and simplify f(x+h)f(x)/h if f(x)=x^22x
asked by John 
Cultural Diversity
What are the linguistics of Puerto Rican Americans
asked by michelle 
Alg. 1
10x5=213x
asked by Laura 
Physics
Two motorcycles are traveling due east with different velocities. However, 2.16 seconds later, they have the same velocity. During this 2.16second interval, motorcycle A has an average acceleration of 1.30 m/s2 due east, while motorcycle B has an average
asked by Jeff 
math 11th grade
evaluate each function. g(x)=x2+3;find g(0)
asked by jessie 
geometry
At rosemead high school, 94 students take biology, 86 take ethnic studies, and 95 take geometry. thirtyseven students take both biology and geometry, 43 take geometry and ethnic studies, and 42 take ethnic studies and biology. twenty eight students take
asked by Audrey 
Physics
a baseball is hit at a height h = 1.10 m and then caught at the same height. It travels alongside a wall, moving up past the top of the wall 1.2 s after it is hit and then down past the top of the wall 3.2 s later, at distance D = 53 m farther along the
asked by Antonio 
English
Thank you very, very much for your corrections. Here are the last sentences for you to check. 1) What does Portia take from Antonio? 2) What does Graziano try to convince Nerissa of? He tries to convince Nerissa that he gave the ring to a clerk. 3) What
asked by Franco 
math
2 gal 3 qt + 5 gal 2 qt ________________
asked by Anonymous 
European History
Can someone please describe the geography of Europe to me or give me a place that I can read on it. I need to answer a question that asks what the disadvantages of Europe's geography are. Thanks
asked by Sally 
BEH/225
Consider the following chain of events. Describe in 350700 words the sensory process that takes place as the scenario unfolds.
asked by Laura 
biology103
what consists of the interactions between groups of different individuals and the nonliving factors in a particular area
asked by Anonymous 
AP Stats
I generally know how to use the normalcdf function on my calculator, but how to I find the area under a normal curve if there is no lower limit or no upper limit? For instance, we are required to use a calculator on this problem: Find the area under the
asked by Emily 
math
For this problem, assume the balls in the box are numbered 1 through 9, and that an experiment consists of randomly selecting 3 balls one after another without replacement. What probability should be assigned to the event that at least one ball has an odd
asked by Laura 
Language Arts
What are 5 general elements or characteristics of the tall tale John Henry?
asked by Kellie 
5th grade math
Im confused please help thank you To find the volume of a box, you multiply the length times the width time the height. The colume of a box is 36,000 cubic inches. Its width is 40 in and its height is 15 in. Eatimate the length of the box.
asked by Dakota 
calculus
solve the equation: 6P=Pe^1.1t
asked by nik 
math
how do you cange 14/30 into a desimal and precent?
asked by kris 
Physics
The electric flux through the surface shown in Figure Ex27.10 is 15.0 Nm2/C, and the electric field makes an angle α = 70° with the surface. What is the electric field strength? The surface is a 10cm by 10cm square.
asked by David D. 
government
Without the _____ to implement them, the decisions of Congress would have no meaning
asked by Amber 
4th grade
what does greatest place mean
asked by Anonymous 
line segments,lines and rays
how you draw a label line segment
asked by tina 
math
two students are playing with a sixsided number cube. the probabilty of tossing a number greater than 13 and less than 24 is 6/6 or 1. what are the possible numbers on the cube?
asked by Darlene 
Word Problems
1. Express the area of a square as a function of its diagonal. 2. The height of a cylinder is half the diameter. Express the total surface area as a function of the height. SA = 2πh + 2πr^2
asked by Jackie 
SciencePhysics HELP
A S.S. automobile travels N at 40 km/h and a P.A. automobile travels E at 50 km/h. Relative to the observer riding in the S.S. auto what are the x and y components of the velocity of the P.A. car? The x axis is to the E and the y axis is to the N.
asked by AJ 
chemistry
What is the positively charged part of an atom called? electron or proton
asked by junior 
chemistry
Which is the Standard International (SI) unit of temperature? Kelvin or Celsius
asked by junior 
math
what is algebra
asked by nevel 
english
What is mixed word order?
asked by Bre 
ScienceChemistry
I did a lab on Elements and Compounds and I would be grateful if u could provide and tell me some information on my work. Lab InvestigationElements and compounds. Can an element be separated from a compound? Can an element form a compound? In this
asked by Immy 
11th grade
4 x^3  4x^2  11x + 6 = 0 Need to solve the equation algebraically
asked by sarabeth 
English
I forgot to include the following sentences. 1) Express the following sentences using a proverb (or through a proverb) Example: Having too many people doing something usually causes problems. 2)Who does Shyloch pay to help him find his daughter Jessica? 3)
asked by Franco 
math
WRITE A PROBLEM IN WHICH YOU WOULD USE THE FUNCTION RULE y=20X
asked by Anonymous 
Earth Science
During the Dinosaur Ages, if there was a region with a mountain range, alluvial plain, and a shallow sea. Which place would it be the most likely for dinosaur fossils to be formed?
asked by Joe 
physics
A roller coaster travels 10.6 m at an angle of 15.0◦ above the horizontal. How far does it move vertically ? Answer in units of m.
asked by Wendia 
statistics
Find the pvalue for each test statistic. a. Righttailed test, z=+1.34 b. Lefttailed test, z=−2.07 c. Twotailed test, z=−1.69
asked by kim 
chemistry
labelled diagram of an experiment magnesium with oxygen
asked by alex 
geography
Which is the largest sea, North, Mediterranean, Caspian or South China Sea?
asked by Anonymous 
hcs 577
4. Why the U.S. health care system is considered complex?
asked by keisha 
English
Thank you very much for helping me. Can you check these sentences, too? Thank you. 1) According to Venetian law a debtor was given a thirty day grace period after the deadline in order to pay his debt. 2) If the debtor failed (or had failed) to pay the
asked by Franco 
economics
what does economy means?
asked by makalay 
algebra II
list all elements of the set {9,0 squareroot3, squareroot25,6/7,110} that are elements of the set of rational numbers
asked by kattey 
English
1. The woman working in the farm is a foreigner. 2. The woman working on the farm is a foreigner. (Which preposition do we have to us before 'the farm'? Are both OK?)
asked by rfvv 
biology
an atom that gains for loses electrons has an electrical charge and is called an _____.
asked by greg 
US History
Need help with this Should English be declared the official language of the US? List three effects that you believe such a law would have. Then write one paragraph explaining your position. I think it should be declared the official language, but I'm not
asked by mysterychicken 
Math
Use the limit definition of the derivative to find f′(x) if 1. f(x) = x^2 + 3x 2. f(x) = 1/x + 1 kk for number one i got f'(x) = 2x+3 and for number two i got f'(x) = 1/(x+1)(x+1) can any one verify these, especially number 2.
asked by catherine 
8th grade algebra
12x=145x please and thank you!
asked by Laura 
Physics
A football kicker can give the ball an initial speed of 31 m/s. What are the (a) least and (b) greatest elevation angles at which he can kick the ball to score a field goal from a point 49 m in front of goalposts whose horizontal bar is 3.44 m above the
asked by Antonio 
Tricky Math Question
18, 9, 12, 15 There are four bags of marbles. One of them contains 18, one of them contains 9, one contains 12, and the other one contains 15 marbles. If I remove three marbles (must be three) and distribute one each of the other bags, that would be ONE
asked by Clara Wang 
math
if a roof has a pitch of 5 degrees and the horizontal lenght is 5.29 metres how high is the vertical?
asked by tim 
English
1. Please take a picture of the dog that is running. 2. Please take a picture of the dog running. (Is #2 correct? In Sentence 2 'that is' is missing.)
asked by rfvv 
algebra 2
10[5+9{4}]
asked by LC 
algebra 2
1/2 {9+5[3]}
asked by LC 
algebra
Find the indicated outputs for f(x)=4x^2 4x f(0) f(1) f(2)
asked by Sue 
math
18x^2 minus x minus 4 simplified.
asked by Samantha 
4th grade Shurley English
Do I need a comma after 1893 in the sentence "Basketball was then introduced in 1893 in France."? Thanks.
asked by Susan 
5th grade
how do I break apart to divide
asked by rakhim 
science
U.s. citizens use _______ energy than do people in other countries with about the smae or even higher standard of living. a) much less b) a little less c) a little more d) much more d
asked by pam 
chemistry
What is the concentration of this solution? If you added 10mL of water to the 10mL of 0.010M CaCl2 solution.
asked by fredy 
physics
A truck has to travel at what speed to stay underneath an airplane traveling at 105 kg/h at 25% angle to the ground.
asked by Captain K 
alegebra
1. Many people know that the weight of an object varies on different planets, but did you know that the weight of an object on Earth also varies according to the elevation of the object? In particular, the weight of an object follows this equation: , where
asked by linda 
drama
Any ideas for a funny parody fairytale  good still winning over evil? I also need to make a role play out of this, so any ideas to do with plays are greatly appreciated.
asked by sally 
math
how can estimating help you add twodigit numbers?
asked by p 
English
I forgot to include these other sentences I'm not sure of. 1) I joined the Scouts in 1990. I went on a summer camp with the Scouts in July. 2) We camped in the mountains. We put up our tents as soon as we got there. 3) In the evenings() we made bonfires
asked by Franco 
john marshall
i don't understand how to do this prblem what is ab=x +7,bc=17,ac =2x
asked by erica 
Social science
I want some highlights on a course called economics education
asked by Emeka 
Maths
This mystery number has 3 digits.Its digits are in the descending order. The hundreds' digit is two more than the ones' digit. If you add the 3 digit it gives you a dozen. Guess this mystery number?
asked by Sharlet 
maths
This mystery number has four digits. Each digit is an even number. All the digits are different. It is the greatest number that can be described that way. guess this mystery number?
asked by Sharlet 
math
how is .83 equal to 5/6
asked by bren 
9TH GRADE MATH
21=53=79*2=
asked by JOSH 
Tricky Math Question
15, 10, 13, 14 There are four bags of marbles. One of them contains 15, one of them contains 13, one contains 10, and the other one contains 14 marbles. If I remove three marbles (must be three) and distribute one each of the other bags, that would be ONE
asked by Clara Wang 
MATH 116
• How do you know when an equation with one variable has infinitely many solutions? • How do you know when an equation with one variable has no solution? • How do you know when an equation with one variable has one solution? • Give an example of
asked by TONY 
math
6.the difference of 8 and 5 is? 7.the expanded from of 654 is 600+50+____
asked by jojo 
biology
A solution of the enzyme amylase was added to a solution of starch and kept at 25C. The starch was broken down by hydrolysis. Explain how you would determine the rate of hydrolysis.
asked by Arina Aliah 
computers
· Write a 200 to 350word paper that describes the distinctions of data and information and briefly explains the process a computer uses to convert data into information. o Consider the following: Computers use a completely different language than
asked by Tracy 
math
Use the limit definition of the derivative to find f′(x) if 1. f(x) = x^2 + 3x 2. f(x) = 1/x + 1 now what i am confuse with is that there is no value given for x. So how is one suppose to do these problems. please show steps and this is just the 3rd
asked by catherine 
Chemistry
5.00 g is equal to how many pounds?
asked by Taylor 
math
jenna wants to purchase a pad of drawing paper for $5.00, a charcoal pencil for $0.75, and an eraser for $1.25. how much money doses she need altogether to buy the supplies
asked by jojo 
European History
Explain the impact of Europe’s geography on European History.
asked by Charbene 
drama
how do you write the crtique of a movie
asked by Ted 
physics
An object with constant acceleration has velocity v = 12 m/s when it is at x = 6 m and v = 17 m/s when it is at x = 10 m. What is its acceleration?
asked by katharine 
Calculus
If h(t) represents the height of an object above ground level at time t and h(t) is given by h(t)=16t2+11t+1 find the height of the object at the time when the speed is zero.
asked by Melissa 
physics
In the diagram below, qA = 9.8 µC & qB = 1.4 µC. There is no charge at point C. The distance between A & C is 2.1 cm and the distance between B & C is 9.6 cm. Find the electric potential at point C
asked by Greg 
8th grade
can afsedrniru be unscrambled into a noun? :)
asked by duckie 
ScienceChemistry
Analysis questions: A) What evidence is there that the gas bubbles formed in the first part of the investigation were hydrogen gas? Answer: Evidence there was that proved that the gas bubbles formed in the first part of the investigation were hydrogen gas
asked by Immy 
9th grade math
if a man mixes 12 lbs. of peanuts that's $1.25 a lbs. with a pound of cashews at $1.80 a lbs. how many pounds of cashew do you need to make a $1.50 a lbs. mixture explain in words and numbers
asked by Giorgio 
Family life
Give the marriage laws in The state of Georgia.
asked by TOM 
chemistry
how many significant figures does 221.5 have
asked by junior 
Math
How would you solve this if f(x)= {(3,5),(2,4),(1,7)}?: 1/f(x)
asked by John 
3rd grade
Explain how you would use a number line to round 148 to the nearest ten.
asked by Alexis 
Geometry
B is the midpoint of AC, if AB=3x+4 and AC = 15x19, find x and bc
asked by Annon 
Chemistry
What properties differ between the elements in the akali metals and the elements in the akaline earth metals? The akali metals have a charge of 1+, and the akaline earth metals have a charge of 2+.
asked by Anonymous 
10th grade math
Which expression repeersents the phrase'' twice the quotient of 50 and the sum of a number y and 8?''
asked by Dawn 
12th Grade Maths
simplify (e is positive) (24e)^1/3 / (3e)^1/3
asked by dave 
10th grade math
Number of pages of a 5 page articile left to read if you read p pages.
asked by Dawn 
math
Explain how a number can name something.
asked by Austyn 
9th grade
wat is 7m3m6=6 can you please tell me how you got that answer?
asked by Alexus 
ethics
what does kant mean by a good will without qualification?
asked by justin 
geometry
B is the midpoint of line AC. If AB = 12x5 and BC = 4x + 15. Find x and BC.
asked by Anonymous 
physics
Annie is walking to school leisurely at a speed of 1.0 m/s for the first half of her trip. She then remembers that her physics teacher told her that she must average 2.5 m/s to make it to school on time. Realizing she might be late, she starts running.
asked by Kyle 
Math
Explain how numbers can be used to name something.
asked by Betsy 
biology
_________ occur when bonds are broken or formed
asked by greg 
accounting
E41 The trial balance columns of the worksheet for Briscoe Company at June 30, 2008, are as follows. BRISCOE COMPANY Worksheet For the Month Ended June 30, 2008 Trial Balance Account Titles Dr. Cr. Cash $2,320 Accounts Receivable 2,440 Supplies 1,880
asked by Kris 
Lang Arts
Can you tell me four homonyms.
asked by Yan 
Just One More Math
How would you solve this if f(x)= {(3,5),(2,4),(1,7)}?: 1/f(x)
asked by John 
arithmetic
what is an abundant number
asked by ry 
criminal justice 220
How can prosecutors ensure they don't allow their own personal bias's to influence their actions in the courtroom.
asked by llisa 
criminal justice 220
how much can our own beliefs influence our actions? Are prosecutors immune from this?
asked by llisa 
Geography
I am having A LOT of trouble locating river Severn on a map of the UK. I don't have and atalas with me and I can't find a map that shows me. Thank you!
asked by Anonymous 
science
What are the chemical elements in citric acid?
asked by bob 
math
find the roots of f(x)=x^21.5x+1
asked by brenden 
college: psychology
3. Define proactive & retroactive inhibition. Create a memory strategy to help you remember & discriminate between them. Explain this strategy well enough so that a reader could learn to use it.
asked by hannah 
math
I am trying to find a pattern in these numbers. I have looked for what feels like hours, and can't find it. 3,9,14,42,47,141
asked by Jake 
math
whats the sum of a number and 5 and a number
asked by Nancy 
8th grade
what is 117 put in simplest form
asked by devontae 
business
What 5 types of changes would take place in Canadian citizens if Canada were to become selfsufficient. (our teacher said they can be positive and others negative, but personally I don't think it would be negative? please help!!
asked by Tesy 
English
Here are some more sentences on school rules I'd like you to revise. Thank you very much for all. 1) You are not allowed to change your sitting order unlesstold by your tutor. You have to sit in the same place when you are in the linguistic laboratory.(how
asked by Franco 
geometric series
what is the nth term equation for a geometric sequence with a1 = 36 and r = 1/3
asked by raven 
calculus
Solve: sec(x)^2= 3tanx +1 *** It is suppose to be the sqaure root of 3 but i could find the symbol so just wrote the 3 without it but it is suppose to be the square root of 3 times tanx + 1
asked by Jack 
Science
What is it called when scientists do their experiments more than once to reduce chance errors?
asked by Matthew 
geometry
At rosemead high school, 94 students take biology, 86 take ethnic studies, and 95 take geometry. thirtyseven students take both biology and geometry, 43 take geometry and ethnic studies, and 42 take ethnic studies and biology. twenty eight students take
asked by Audrey 
English grade 5
what do you think is some good ideas for a journal as an artisan, a knight, a farmer, a mother with small children, a feudal lord, or a merchant.
asked by Bobby 
math
If a failure rate is 0.15 what is the probability of 5 failures in a row?
asked by Jerrry 
geometryy
the intersection of two distinct planes can be a _ or a _?
asked by cassie