Questions Asked on
October 9, 2012

Chemistry
2H2+O2 > 2H20 changeHrxn=484 KJ Which answer best describes the transfer heat that occurs when 1.30 mol of H2 reacts? 629 KJ released 315 KJ absorbed 315 KJ released 484 KJ absorbed 484 KJ released 629 KJ absorbed
asked by Anonymous 
Chemistry
Which of the following substances have a standard heat of formation (ÄHf°) of zero? O2(g) at 25.0 degree C and 1 atm Fe at 1200 degree C C2H6(g) at standard conitions Cl2(g) at 2 atm
asked by Anonymous 
math
15. Harriet needs to ship a small vase. The box she will use has a volume of 216 cubic inches. If the side lengths are all the same, what is the length of each side of the box? Hint: V = s^3
asked by jman 
Chemistry
A gas is allowed to expand at constant temperature from a volume of 2.00 L to 11.20 L against an external pressure of 1.500 atm. If the gas loses 256 J of heat to the surroundings, what are the values of q, w, and ΔU? Pay careful attention to units.
asked by Syed 
Chemistry
A galvanic (voltaic) cell consists of an electrode composed of aluminum in a 1.0 M aluminum ion solution and another electrode composed of fold in a 1.0 M gold (III) ion solution connected by a salt bridge. Calculate the standard potential for this cell at
asked by Morgan 
AP ECE Physics
A car at the Indianapolis500 accelerates uniformly from the pit area, going from rest to 295 km/h in a semicircular arc with a radius of 190 m. Determine the tangential acceleration of the car when it is halfway through the turn, assuming constant
asked by John Conlan 
science
A golfer tees off and hits a golf ball at a speed of 31 m/s and at an angle of 35 degrees. How far did the ball travel before hitting the ground? Round the answer to the nearest tenth of a meter.
asked by Miguel Hernandez 
Chemistry
Imagine that, in lab, you record the mass of a piece of metal, mmetal, as Tmetal=84.0 degree C In another step of this lab, you record the mass of water (mwater) in a coffee cup as Twater1=26.0 degree C Twater2=29.0 degree C With the information above and
asked by Anonymous 
Chemistry
2Fe2O3 > 4Fe+3O2 changeHrxn= +824.2 KJ The decomposition of 57.0 g of Fe2O3 results in The release of 23500 KJ of heat The absorption of 147 KJ of heat The absorption of 23500 KJ of heat The absorption of 294 KJ of heat The release of 294 KJ of heat The
asked by Anonymous 
Physics
A pendulum consists of a small object hanging from the ceiling at the end of a string of negligible mass. The string has a length of 0.88 m. With the string hanging vertically, the object is given an initial velocity of 1.7 m/s parallel to the ground and
asked by Ben 
organic chem
A mixture of ethyl iodide (b.p. 72.3) and water boils at 63.7 C. What weight of ethyl iodide would be carried over by 1 gm of steam during steam distillation
asked by dananny 
chemistry
Given the thermochemical equation 2SO2(g) + O2(g) → 2SO3(g), ΔH= 198 kJ/mol, how much heat is evolved when 600. g of SO2 is burned? A. 5.46 x 102 kJ B. 928 kJ C. 1.85 x 103 kJ D. 59,400 kJ E. 3.71 x 103 kJ
asked by Anonymous 
physics
A gazelle is running in a straight line (the xaxis). The graph in the figure (Figure 1) shows this animal's velocity as a function of time. During the first 12.0 , find the total distance moved
asked by Aj 
english
How would you briefly describe Poe's requirement for the short story genre?
asked by LEE 
Chemistry
How do I write ZnSo4(aq)+Na3Po4(aq)> Zn3(Po4)2(s)+Na2S04(aq)as a net ionic equation balanced?
asked by Crystal 
Physics
Two polevaulters just clear the bar at the same height. The first lands at a speed of 8.50 m/s, and the second lands at a speed of 8.80 m/s. The first vaulter clears the bar at a speed of 1.50 m/s. Ignore air resistance and friction and determine the
asked by Sam 
Chemistry
An unknown substance has a mass of 16.3 g. The temperature of the substance increases by 20.1 degrees Celsius when 126 J of heat is added to the substance. What is the most likely identity of the substance? The table lists the specific heat capacities of
asked by Anonymous 
chemistry
Consider the following overall reaction which is experimentally observed to be second order in AB and zero order in C: AB+C > A+BC Determine whether the mechanism below is valid for this reaction AB+ AB > AB(sub 2) + A slow AB(sub2) + C > AB+BC fast
asked by michelle 
Algebra
Debra has 2/3 of a pound of loose green tea leaves. If she wants to keep onehalf of the tea at home and the other half at work, what fraction of a pound will she have at work? 1/6, 1/4, 1/3, or 1/2? I would personally say 1/3, but, could someone explain
asked by 123c: 
phy
force in the xdirection with magnitude Fx=18N(0.530N/m)x is applied to a 5.50 box that is sitting on the horizontal, frictionless surface of a frozen lake. is the only horizontal force on the box. what is the speed after 12m. starting from rest and x=0
asked by lvf 
math
A candle is 17 in. tall after burning for 3 hours. After 5 hours, it is 15 in. tall. Write a linear equation to model the relationship between height h of the candle and time t. Predict how tall the candle will be after burning 8 hours.
asked by jake 
Chemistry
How many electrons will each element gain in forming an ion? a. Nitrogen ______ b. Oxygen ________ c. Sulfur _______ d. bromine _______
asked by Greg 
2 math questions
13. Write a translation rule that maps point D(7, –3) onto point D'(2, 5). 14. Triangle ABC has coordinates A(1, 4); B(3, –2); and C(4, 2). Find the coordinates of the image A'B'C' after a reflection over the xaxis
asked by jman 
world history
What is a good grabber for an Hammurabi's Code essay???
asked by sarah meyers 
geometry
PM is the median of trapezoid KLNO. If ON = 30 centimeters and KL = 20 centimeters, what is the length of PM?
asked by Maurice 
Math, Algebra.
2. Sylvia has 6 1/2 boxes of chocolate to share at a family picnic. If she gives each person 1/3 of a box, how many people can receive chocolate? 13, 17, 19, or 21? I believe that the answer is 19. Take 6 1/2, divided by 1/3, and get 19 1/2. Since 19 is
asked by 3 
physics
Two mountain climbers are working their way up a glacier when one falls into a crevasse. The icy slope can be considered frictionless. Sue's (the one who fell) weight is pulling Paul up the 45 degree slope. If Sue's mass is 66 kg and if she falls 2 min 10
asked by sam 
chemistry
Write a balanced chemical equation for the reaction of solid magnesium with aqueous iron(II) chloride to form aqueous magnesium chloride and solid iron. (Type your answer using the format CO2 for CO2. Use the lowest possible coefficients.)
asked by robert nelson 
english
How would you briefly describe what the lerary movement Romanticism valued?
asked by LEE 
College Physics
A block weighing 70.0 N rests on a plane inclined at 25.0° to the horizontal. A force F is applied to the object at 50.0° to the horizontal, pushing it upward on the plane. The coefficients of static and kinetic friction between the block and the plane
asked by JB 
Chemistry
Methane gas reacts with diatomic sulfur in the gas phase, producing carbon disulphide and hydrogen sulfide. The rate constant for this reaction is 1.1 (L/M.s) at 550 oC. If it is 6.31 (L/M.s) at 624 oC, what is the value of the activation energy for this
asked by MK 
chemistry
How much in $ is one MOLE of pennies?
asked by Shay 
Physics
A 0.20kg ball on a stick is whirled on a vertical circle at a constant speed. When the ball is at the three o'clock position, the stick tension is 16N. Find the tensions in the stick when the ball is at the twelve o'clock and at the six o'clock positions.
asked by Anonymous 
chemistry
Determine the mass of CuSO4.5H20 needed to make 250 mL of a .100M CuSO4.5H20 aqueous solution..
asked by danielle 
chemistry
In a coffeecup calorimeter, 1.91 g of NH4NO3 is mixed with 75.0 g of water at an initial temperature of 25.00oC. After the solution of the salt, the final temperature was 20.94oC. Assuming the solution has a heat capacity of 4.18 J/(goC) and assuming no
asked by Shawn 
RepostPhysics 1
Consider a roller coaster that moves along the track shown in the figure below. Assume all friction is negligible and ignore the kinetic energy of the roller coaster's wheels. Assume the roller coaster starts with a speed of 19 m/s at point A. Find the
asked by John 
o Chem
a sample consisting of 1bromopropane and 1chloropropane isinjected into a gas chromatograph quipped with a nonpolar column.which compound has the shorter retention time? Explaine the answer. b.if the same sample were run several days later with
asked by MELISSA 
Physics
An artillery shell is fired with an initial velocity of 300m/s at 55.0 degrees above the horizontal. To clear an avalanche, it explodes on a mountainside 42.0s later. What are the x and y coordinates of the shell where it explodes, relative to its firing
asked by Lindsay 
physics
what is the distance between centers of a baseball of mass 0.145 kg and a bowling ball of mass 5.5 kg, such that the gravitational force between them is 1.3 * 10^6N
asked by nana 
Science
Predict what would happen to the weather in the northeastern united states if the polar jet stream dipped to the south. How would the weather change if the jet stream moved to the north?
asked by SoccerStar 
chemistry
How much energy is required to raise the temperature of 3 kg of lead from 15C to 20C? Use the table below and this equation: Q = mcT.
asked by bebe 
Physics
A truck carrying a 65.4 kg crate accelerates from rest to 53.9 km/h on a flat horizontal surface in 15.2 seconds. The crate does not slip in the truck bed. The acceleration was not constant. How much work was done on the crate by the truck?
asked by Anonymous 
HCA
a 700 to 1,050word paper that includes the following: • Describe the principles of verbal and nonverbal communication. • Explain which three principles you think are critical for effective communication. • Include at least one personal experience
asked by jackie 
6th grade Math
Maria is applying for a summer job. Six employees doing the same work earn $8.00, $8.50, $9.00, $9.50, $10.00, and $23.50 per hour. In the interview, the boss tells Maria that the median of the hourly wages is $9.25. Is the boss’s statement misleading?
asked by Aimee 
Env. Sci.
Explain how an organism can be dead, yet still considered a biotic factor.
asked by Neil 
PreCal
In a grocery store, you push a 14.5 kg shopping cart with a force of 12 N. If the cart starts from rest, how far does it move in 3 sec?
asked by Gabi 
Math
Why could the mean of the data set below be misleading? ages of teachers: 29, 38, 39, 26, 29, 29, 39, 77, 38, 29
asked by Missy 
Science
a 25 kg object moving at 15 m/s collides with at 15 kg object that is standing still. They stick together and keep moving, what is their final velocity?
asked by Anonymous 
Grammar
This patient is alert, conscious, cooperative, in no acute distress, stable, and oriented times 3. A) complete sentence B) fragment C) runon I want to say A but think it is C
asked by Marie 
pre calculus
A farmer will be adding a rectangular corral to his barn. He has 600 feet of fencing. The part of the barn that is attached to the corral is 150 feet long. Write a function for the area of the corral, A(x) and include the domain Find the answers for both
asked by stephenie 
Grammar
Risk factors that are involved. A) complete sentence B) fragment C) runon To me this seems like a fragment, because what risk factors? If it is A then I was way wrong
asked by Marie 
Chemistry
Complete the electron dot structure below to show how beryllium flouride (BeF2) is formed. F F Be+ > Be F F
asked by Greg 
physics
Question Part Points Submissions Used 1 2 –/1 –/2 0/3 0/3 Total –/3 A force of 12.8 N pulls horizontally on a 0.9 kg block that slides on a rough, horizontal surface. This block is connected by a horizontal string to a second block of mass m2 = 2.04
asked by Anonymous 
physics
A frictionless30degrees incline should provide an acceleration of 4.90m/s2 down the incline. A student with a stopwatch finds that an object, starting from rest, slides down a 15m very smooth incline in exactly 3s. Is the incline frictionless?
asked by julia 
RepostPhysics 1
A skier of mass 109 kg travels down a frictionless ski trail. a)If the top of the trail is a height 218 m above the bottom, what is the work done by gravity on the skier? _____J b)Find the velocity of the skier when he reaches the bottom of the ski trail.
asked by John 
Geometry
Can you tell em if this is right? If not, can you tell me what words go where? A truth value statement can be written in the form “if P, then Q.” This “if, then” statement can be true or false. The “if” part is called the hypothesis, and the
asked by Joel 
Physics  repost
A pendulum consists of a small object hanging from the ceiling at the end of a string of negligible mass. The string has a length of 0.88 m. With the string hanging vertically, the object is given an initial velocity of 1.7 m/s parallel to the ground and
asked by Ben 
6th grade science
I know how to do the expiriment but I need help with the essay this about the glass cup over the candle and it sucks water.this is what I've got"When you put a cup on top of a lit up candle warm air gets trapped under the glass. Once the glass cools it
asked by Molisa 
physics
A pelican ﬂying along a horizontal path drops a ﬁsh from a height of 6.0 m. The ﬁ!@#$%^&ravels 7.7 m horizontally before it hits the water below. What was the pelican’s initial speed? The acceleration of gravity is 9.81 m/s 2. If the pelican was
asked by David 
Chemistry
Upon decomposition, one sample of magnesium fluoride produced 1.65kg of magnesium and 2.58kg of fluorine. A second sample produced 1.50 kg of magnesium. How much fluorine (in grams) did the second sample produce?
asked by Eliza 
Physics
A 30 meter wide canal is flowing at the rate of 20 m/min. A boy can swim at the rate of 25 m/min in still water. The time taken by him to cross the canal perpendicular to the flow is
asked by Judish 
Physics
Please help!!! Physics test!? I have a physics test tomorrow on projectile motion, and I don't feel ready for it. I'm having trouble in the class and I need to ace this test. The problem is I get confused when I get a problem. I don't know how to proceed.
asked by Mike 
Chemistry
Complete the electron dot structure below to show how beryllium flouride (BeF2) is formed. F F Be+ > Be F F
asked by Greg 
Chemistry
The combustion of 0.0222g of isooctane vapor, C8H18(g), at constant pressure raises the temperature of a calorimeter 0.400 degrees C. The heat capacity of the calorimeter and water combined is 2.48kJ/degrees C. Find the molar heat of combustion of gaseous
asked by Heather 
College Physics
A rifle bullet with a mass of 17.5 g traveling toward the right at 293 m/s strikes a large bag of sand and penetrates it to a depth of 23.6 cm. Determine the magnitude and direction of the friction force (assumed constant) that acts on the bullet.
asked by JB 
Math kindergarten
The question in the math kindergarten homework is : Have children count the birds in the picture and then draw the correct number of counters to show how many. How do you draw counters? Thanks.
asked by Rap 
math
write a situation that can be represented by the algebraic expression $3.50.
asked by joseph osuna 
PHYSICS
Alump of lead with mass 0.50kg is dropped from a hight of 20m onto a hard surface. it doesn't rebound but remains there at rest for a long periods of time. what are Q,W,UFOR THE LEAD DURING THE PROCESS.
asked by Anonymous 
Physics
A crate of mass m = 31 kg rides on the bed of a truck attached by a cord to the back of the cab as in the figure. The cord can withstand a maximum tension of 82 N before breaking. Neglecting friction between the crate and truck bed, find the maximum
asked by Kelly 
Chemistry
If the heat of combustion for a specific compound is 1320.0 kJ/mol and its molar mass is 92.41 g/mol, how many grams of this compound must you burn to release 544.30 kJ of heat?
asked by Anonymous 
PreCalc
1. Determine the quadrant in which the terminal side of the angle is found and find the corresponding reference angle. theta = 4 I know how to find the terminal side when theta has pi in it (for example: 4pi/3), but I don't understand what just "4" means.
asked by Anonymous 
RepostPhysics 1
A car is pushed along a long road that is straight, horizontal, and parallel to the x direction. a)The horizontal force on the car varies with x as shown in the figure. What is the work done on the car by this force? (Let a = 100 N.) _____J b)What is the
asked by John 
Grammar
The heart catheterization indicated some abnormality of the heart muscle, this may have possibly been a blood clot. A) complete sentence B) fragmet C) runon I say it is A
asked by Marie 
Science
What is the final pressure of the gas relative to its initial pressure when there is an increase in Kelvin temperature of a cylinder of compressed gas by a factor of 2.7?
asked by Patrick 
Physics
In a circus performance, a monkey on a sled is given an initial speed of 3.2 m/s up a 31° incline. The combined mass of the monkey and the sled is 20.7 kg, and the coefficient of kinetic friction between the sled and the incline is 0.20. How far up the
asked by Viv 
WORK~PHYSICS
A crate is dragged 15m along a horizontal surface by a rope which makes an angle of 37° with the horizontal. How much work is done? Please help me with this question.
asked by BOOKER PERRY 
precalculus
find the functions f and g so that Fog = H. H(x)=/2x+1\
asked by ladybug 
Help Physics
A child with a mass of 39 kg stands on a spring scale inside an elevator. For each of the scenarios below, draw a force diagram of the forces acting on the child and calculate the reading of the scale in newtons. (a) The elevator is at rest. _______ N (b)
asked by arcos15 
Physics
A wheel of arduous 30 cm is rotating at a rate of 2.0 revolutions every 0.080 s. Through what angle, in radians, does the wheel rotate in 1.0 s? What is the linear speed of a point on the wheel's rim? What is the wheel's frequency of rotation?
asked by Anonymous 
Physics
A pendulum consists of a small object hanging from the ceiling at the end of a string of negligible mass. The string has a length of 0.77 m. With the string hanging vertically, the object is given an initial velocity of 1.8 m/s parallel to the ground and
asked by StressedStudent 
Physics
A pendulum consists of a small object hanging from the ceiling at the end of a string of negligible mass. The string has a length of 0.88 m. With the string hanging vertically, the object is given an initial velocity of 1.7 m/s parallel to the ground and
asked by Sam 
Grammar
With a plan of possible surgery in the immediate future given his diabetes. A) complete sentence B) fragment C) runon This seems like a big fragment to me, but
asked by Marie 
physics
On a banked race track, the smallest circular path on which cars can move has a radius of 105 m, while the largest has a radius of 175 m, as the drawing illustrates. The height of the outer wall is 18.7 m. Find (a) the smallest and (b) the largest speed at
asked by ben 
childare management
which one of the following statements about childcare centers is correct?
asked by moniica 
Grammar
Today painful and swollen such that he cannot fish. A) complete sentence B) fragment C) runon I answered b
asked by Marie 
Grammar
The patient's ultrasound showed dilated gallbladder with no stones present, this was consistent with cholecystitis. A) complete sentence B) fragment C) runon I answerwed A
asked by Marie 
Astrophysics
Star Power and Temperature Star A and Star B Consider two stars that are the same size (they have the same diameter), but have different surface temperatures. Let’s say Star A’s temperature is 3000 K and Star B’s temperature is 4500 K. Let’s look
asked by Lisa 
Physics
A dockworker loading crates on a ship finds that a 22kg crate, initially at rest on a horizontal surface, requires a 80N horizontal force to set it in motion. However, after the crate is in motion, a horizontal force of 59 N is required to keep it moving
asked by Kelly 
Algebra
Tom has a 15 foot ladder that he leaned against the wall of his house. Tom put the base of the ladder 3 feet away from the house. How far up The house is the top of the ladder?
asked by Carmen 
Chem
A 0.2181 g sample of KHP required 17.29 mL of sodium hydroxide solution to reach the phenolphthalein end point. Calculate the molarity(M) of the NaOH solution.
asked by Donnie 
Math
Game tickets for 1 adult and 2 kids is $21. The adult ticket is $3 more than the kid ticket. How much does adult ticket cost? How much does a child ticket cost? Use a let statement. Write an equation. (213) / 3 = x 18/3=x X = $6 (child ticket) X + 3 = $9
asked by Meagieting 
physics
if the kinetic friction on a sliding box (9.5kg) of books was 23.5,what was the total force exerted to slide the box
asked by Anonymous 
Physics
A peregrine falcon dives at a pigeon. The falcon starts downward from rest with freefall acceleration. If the pigeon is 66.0 m below the initial position of the falcon, how long does the falcon take to reach the pigeon? Assume that the pigeon remains at
asked by Mel 
Physics
In a circus performance, a monkey on a sled is given an initial speed of 3.2 m/s up a 31° incline. The combined mass of the monkey and the sled is 20.7 kg, and the coefficient of kinetic friction between the sled and the incline is 0.20. How far up the
asked by Emma 
Grammar
The patient was admitted to the floor for abdominal pain and diarrhea, initial diagnosis was a possible smallbowel obstruction. A) complete sentence B) fragment C) runon Seems like C would be the best answer as a runon
asked by Marie 
Integrated 2
Aaron has 20 dimes and nickels which together total is 1.40 how many of each does he have
asked by Sam 
Grammar
Returns now complaining of increase in depression over the past several months, resulting in an emergency room visit. A) complete sentence B) fragment C) runon Who returns is my first thought, I answered it as B..
asked by Marie 
RepostPhysics 1
A crate of mass 48 kg is pushed up a frictionless ramp by a person as shown in the figure below. Calculate the work done by the person in pushing the crate a distance of 11 m as measured along the ramp. Assume the crate moves at constant velocity. _____J
asked by John 
Grammar
The risks, benefits, and alternatives to this procedure, including the risk of bleeding, infection, injury to adjacent organs, and death were explained to the patient. A) complete sentence B) fragment C) runon Seems like it could be A and the C because
asked by Marie 
Grammar
Abdomen was soft, obese, nontender, except in the location of the hernia, which was approximately 7 x 5 cm just to the right of midline. A) complete sentence B) fragment C) runon I answered A
asked by Marie 
Geometry
On a trip from Virginia to Florida the Smith family wants to travel at least 420 miles in 8 hours of driving, what must their average rate of speed be? Would it be 420 divided by 8= 52.5 miles an hour? Thank you!
asked by Erin :) 
chemistry
What is the formula equation and balance it and also give the sum coefficient of: 1.sulfur dioxide(g)+oxygen(g)delta arrow (sorry i can't draw it here) sulfur trioxide 2. nitrogen dioxide(g)+dihydrogen monoxygen(l) nitric acid(g)+nitrogen monoxide
asked by bertshie 
Grammar
He is an elderly man in no apparent distress, he is somewhat short of breath. A) complete sentence B) fragment C) runon I say it is a runon
asked by Marie 
Grammar
This is a young woman whom I have treated for depression, she was last seen a year ago. A) complete sentence B) fragment C) runon I say it sounds like a runon
asked by Marie 
precal
solve the equation algebraically. 7e^x=11e^x
asked by ladybug 
physics
A record was set for stair climbing when a man ran up the 2300 steps of the Empire State Building in 10 minutes and 20 seconds. If the height gain of each step was 0.2 m, and the man's mass was 63.0 kg, what was his average power output during the climb?
asked by xp 
Grammar
The patient denies any cardiac symptoms, angina, shortness of breath, any infectious disease, any bleeding disorder, or any pulmonary disorders. A) complete sentence B) fragment C) runon I say its a complete sentence:)
asked by Marie 
math
cody has 6 times as many bottle caps in his collection as Rebecca. cody has 36 bottle caps. write an equation to find the number of bottle caps rebecca has,c
asked by jenny 
physics
A 110 kg object moves in a horizontal straight line with an initial speed of 54 m/s. If it is stopped along that line with a deceleration of 1.90 m/s2 what magnitude of force is required?
asked by John 
stats
the head circumferences of adult males have a bellshaped distribution with the mean= 65cm and standard deviation =2cm. a. what is the head circumference such that only 2.5% of adult males have a smaller head circumference? b. what is the head
asked by jenny 
physics
A boat moves through the water with two forces acting on it. One is a 2.05 103 N forward push by a motor, and the other is a 1.75 103 N resistive force due to the water. (a) What is the acceleration of the 1080 kg boat? (b) If it starts from rest, how far
asked by ken 
CHEMISTRY
The enthalpy of neutralization for the reaction of a strong acid with a strong base is −56 kJ/mol of water produced. How much energy will be released when 200.5 mL of 0.400 M HCl is mixed with 149.1 mL of 0.500 M NaOH?
asked by Sarah 
Physics
A pitcher throws a 0.107kg baseball, and it approaches the bat at a speed of 31.7 m/s. The bat does 77.9 J of work on the ball in hitting it. Ignoring air resistance, determine the speed of the ball after the ball leaves the bat and is 22.7 m above the
asked by StressedStudent 
Algebra
A natural food store makes its own brand of trail mix out of dried apples, raisins, and peanuts. One pound of the mixture costs 3.18. It contains twice as much peanuts by weight as apples. One pound of dried apples cost $4.48, a pound of raisins costs
asked by Megan 
SS8R  Help!!!!!!!
Why did treaties between Native Americans and the United States fail to bring peace to the Plains?
asked by Laruen 
Science
I can't find this answer in my book but can someone tell me if its right please? When you remove electrons from a metal cup, the cup becomes: negatively charged  positively charged or ionized? I think it is negatively charged. Thanks
asked by Sue 
Science
QHow does room temp. affect student performance? HIf the amount of room temp. increase,then........ Qquestion Hhypothesis
asked by Grechia 
RepostPhysics 1
A horizontal force of 30 N pulls a block of mass 2.5 kg across a level floor. The coefficient of kinetic friction between the block and the floor is ìK = 0.25. If the block begins with a speed of 2.0 m/s and is pulled for a distance of 18 m, what is the
asked by John 
RepostPhysics 1
Two railroad cars, each of mass 2.2 104 kg, are connected by a cable to each other, and the car in front is connected by a cable to the engine as shown in the figure below. The cars start from rest and accelerate to a speed of 1.7 m/s after 1 min. a)Find
asked by John 
Physics
A freight train has a mass of 1.5*10^7 kg. If the locomotive can exert constant pull of 4.5 *10^5N, how long does it take to increase the speed of the train from res to 80.0km/hr? a)467s b) 444s c)527s d) 425s e) 496s
asked by Mark 
Physics Elena please help!
A 85.0 kg base runner begins his slide into second base when he is moving at a speed of 2.10 m/s. The coefficient of friction between his clothes and Earth is 0.570. He slides so that his speed is zero just as he reaches the base. (a) How much mechanical
asked by Anonymous 
math
How much does Jane pay for 1.75 kg of apples at $0.48 per 100 grams?.
asked by Anonymous 
Physics
Consider a force F = 815 N pulling 3 blocks of masses m1 = 7.94 kg, m2 = 15.3 kg, and m3 = 32.4 kg along a frictionless horizontal surface. Find the acceleration a of the blocks. Answer in units of m/s2.
asked by Priscilla 
Algebra
At noon the temperature is 30 degree F. For the next several hours the temperature falls by an average of 3 degrees F an hour. What's the equation for the temperature and the hours after noon?
asked by Caky 
Statistics
Given that x is a normally distributed random variable with a mean of 28 and a standard deviation of 7, find the following probability: P(x
asked by Anonymous 
Grammar
Insulin, Celebrex, and Accupril, which he is just finishing. A) complete sentence B) fragment C) runon I answered B
asked by Marie 
Science
Biphenyl, C12H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H6. At 25 °C, the vapor pressure of pure benzene is 100.84 torr. What is the vapor pressure of a solution made from dissolving 15.2 g of biphenyl in 29.5 g of benzene?
asked by Maria 
math
This problem from China is almost 2000 years old: Find a number that when divided by 3 gives a remainder of 1, when divided by 5 gives a remainder of 4, and when divided by 7 gives a remainder of 2.
asked by Christina 
7th grade math pygorean theroem ms.sue correct
4. A wire is stretched from the top of a 26foot pole to a point on the ground that is 15 feet from the bottom of the pole. Approximately how long is the wire in feet? (1 point) 16 21 30 37 4.30 is it correct?
asked by Delilah 
Math
Movies A survey of 350 customers was taken at Regal Cinemas in Austin, Texas, regarding the type of movies customers liked. The following information was determined. 196 liked dramas. 153 liked comedies. 88 liked science fiction. 59 liked dramas and
asked by nicole 
Chem Problem
Help Please? In the preparation of a mustard solution, an individual package of mustard was emptied into a beaker and the mass was determined to be 3.809 grams. The mustard was then dissolved in 50.0 ml. of distilled water. The total mass of the solution
asked by Kelli 
MATH
BENNY PLAYS TWO SPORTS. HE PLAYS SOCCER FOR 3/4 OF THE TIME AND PLAYS BASEBALL FOR 30MINUTES. HOW MANY MORE MINUTES DOES HE PLAY SOCCER THAN BASEBALL? My answer is he plays soccer 7 minutes more. Am I correct. How do I make a diagram for this problem.
asked by MARTHA 
Grammar
Abdomen was nondistended. A) complete sentence B) fragment C) runon My answer was b
asked by Marie 
Science
Are hydrogen bonds weak or strong?
asked by Us an 
Grammar
After he rests from a golfing trip, this pain goes away. A) complete sentence B) fragment C) runon I say it is a fragment because shouldn't it say "his pain goes away"?
asked by Marie 
Physics
A baseball is hit at ground level. The ball reaches its maximum height above ground level 3.2 s after being hit. Then 2.7 s after reaching its maximum height, the ball barely clears a fence that is 81.0 m from where it was hit. Assume the ground is level.
asked by Devin 
Chemistry
A sample of helium has a volume of 325mL and a pressure of 655mmHg. What wll be the pressure if the helium is compressed to 125mL (T constant)?
asked by Mel 
science fair
I need to do a project for the science fair but I don't know what to do. My science teacher says it has to be like the water dancing on a penny, everything has to be the same but you have to change one thing. What can I do?????? HELP ME PLEASE :/
asked by Molisa 
math
If you borrow $15,000 from your dad for college and you agree to pay him $25,000 back at 8% compound interest per year. How many years do you think you have to do this? In other words, given the amounts and the interest rate, what is the number of years?
asked by Martin 
Grammar
The patient is to follow up in the surgery clinic. A) complete sentence B) fragment C) runon I think it is a(a complete sentence)
asked by Marie 
physics
A 110 kg object moves in a horizontal straight line with an initial speed of 54 m/s. If it is stopped along that line with a deceleration of 1.90 m/s2 what magnitude of force is required?
asked by John 
Physics
A 19 N thrust is exerted on a 0.4 kg rocket for a time interval of 8 s as it moves straight up. (Neglect all forces except this thrust and the force of gravity.) The rocket then continues to move upward as its speed reduces steadily to zero. (a) What is
asked by arcos15 
Grammar
Generalized fatigue with body aches and pains. A) complete sentence B) fragment C) runon my answer is b because it doesn't explain very much..
asked by Marie 
Grammar
The patient tolerated the procedure well without any complications. A) complete sentence B) fragment C) runon To me it is a, a complete sentence..
asked by Marie 
Chemistry
How many mL of the 0.1029 M standard NaOH solution is required to titrate 0.2247 g sample of KHP to the phenolphthalein end point?
asked by Erin 
Grammar
A lot of time thinking about how poorly she is doing. A) complete sentence B) fragment C) runon This has got to be a fragment...it doesn't discribe who and why
asked by Marie 
Grammar
He was breathing somewhat quickly, his respiratory rate was 36. A) complete sentence B) fragment C) runon C is my answer because shouldn't it say "and his"
asked by Marie 
Grammar
The gallbladder is partially filled with many small stones, they are mobile. A) complete sentence B) fragment C) runon This is tricky too, shouldn't it say "and they are" to be complete? I say it is b or c
asked by Marie 
WORK
A crate is dragged 15m along a horizontal surface by a rope which makes an angle of 37° with the horizontal. How much work is done? Please help me with this question.
asked by BOOKER PERRY 
Grammar
Lungs clear to auscultation. A) complete sentence B) fragment C) runon I say it is complete So A would be my answer.
asked by Marie 
stats
The life of tires manufactured by Omega Tires Inc is believed to be normally distributed with a mean of 110,000 km and a standard deviation of 5,000 km. A random sample of 200 tires is tested . What is the problability of the mean life of this sample being
asked by Carlos 
SS8R  help!!!!!!! (2)
Why were many Plains Indians attracted to Wovoka's teaching about the Ghost Dance?
asked by Laruen 
stats
A manufacturing process has 100 customer orders to fill. Each order requires one component part that is purchased from a supplier. However, typically, 2% of the components are identified as defective, and the components can be assumed to be independent. a.
asked by Anonymous 
Grammar
Bring records to followup. A) complete sentence B) fragment C) runon seems to me it would be B, but could be A too
asked by Marie 
physics
A motorcycle has a constant speed of 20.8 m/s as it passes over the top of a hill whose radius of curvature is 159 m. The mass of the motorcycle and driver is 387 kg. Find the magnitude of (a) the centripetal force and (b) the normal force that acts on the
asked by ben 
Chemistry
Write the symbol and electron configuration for each ion and name the noble gas with the same configuration. a. nitride _________________________ b. oxide ___________________________ c. sulfide _________________________ d. bromide _________________________
asked by Greg 
Grammar
He was started on hydration and IV antibiotics. A) complete sentence B) fragment C) runon I answered this one A too
asked by Marie 
7th grade Ms. Sue help Pygorean Theoream asap quic
3. A ladder is leaning against a house. The distance between the base of the ladder to the house is 3 feet. The length of the ladder is 10 feet. In feet, how far above the ground does the ladder touch the house? (1 point) 4.2 9.5 10.4 14.1 4. A wire is
asked by Delilah 
Grammar
The patient is to use medications as directed and to return to the emergency room if he continues to have diarrhea. A) complete sentence B) fragment C) runon This to me looks like a complete sentence
asked by Marie 
Grammar
He was tender in the right upper quadrant. A) complete sentence B) fragment C) runon Seems complete but I answered it b
asked by Marie 
Grammar
He was treated towards the end of December for upper respiratory infection with Robitussin with codeine cough syrup, he feels significantly better. A) complete sentence B) fragment C) runon I say C
asked by Marie 
Math
Find the equation of a sine wave that is obtained by shifting the graph of y=sin(x) to the right 6 units and downward 6 units and is vertically stretched by a factor of 5 when compared to y=sin(x)
asked by Anonymous 
math
When items in a box are put in groups of 3 or 5 or 6, there is always 1 item left over. How many items are in the box if there are fewer than 50?
asked by Christina 
Business Math
Import exclusives Ltd. received an invoice dated June 28 from Dansk Specialties of Copenhagen with terms 5/20, n/45: 100 teak trays at $34.30 each; 25 teak ice buckets at $63.60 each; 40 teak salad bowls at $54.50 each. All items are subject to trade
asked by Steph 
physics
If a ferris wheel has the radius of 5 meters, and one revolution takes 32 seconds, what is its speed?
asked by Sammi 
chemistry
A home swimming pool is disinfected by the daily addition of 0.50 gal (1 gal = 3.785 L) of a "chlorine" solution–NaOCl in NaOH(aq). To maintain the proper acidity in the pool, the NaOH(aq) in the "chlorine" solution must be neutralized. By experiment it
asked by joe 
math
If a number is not a rational number, then it is _____.
asked by Yoda 
Physics
A 19 N thrust is exerted on a 0.4 kg rocket for a time interval of 8 s as it moves straight up. (Neglect all forces except this thrust and the force of gravity.) The rocket then continues to move upward as its speed reduces steadily to zero. (a) What is
asked by arcos15 
chemistry
what is the sum coefficient and balanced equation of : Co(OH)3+Na2CO3 my answer is 3Co(OH)3+ 3Na2CO3> 3CoCO3+ 3Na2OH
asked by lydia 
Last Question Physics.
A diagram represents a 5 N force to the North and a 12 N force East acting on an object P of mass 6.5kg. The Magnitude of the Net Force is 13 N  The direction it accelerates is 23 degrees North of East. FIND: (A) If the object has an intial speed of 8
asked by arcos15 
Physics
A baseball is hit at ground level. The ball reaches its maximum height above ground level 3.2 s after being hit. Then 2.7 s after reaching its maximum height, the ball barely clears a fence that is 81.0 m from where it was hit. Assume the ground is level.
asked by Devin 
chemistry
what is the pH of .10 M NH4CL?
asked by hamed shirazi 
Language Arts
Need some help on the sentence below. This is just what happened in 1989 to the fish, birds, and other animals that call Alaska their home. Would there be any commas around 1989? If so would it be before it, after it, or both? Thanks..
asked by Brandi 
French
How do i write the response in french please help 1) comment s'apple le project que les elves regardent sur l'ordinateur 2)on attrape un mauvais rhume a cause de quel microbe? 3)quel aliment peut nous rendre malades s'ill contient du bacillus cereus?
asked by Please and Thankyou 
Algebra Grade 7
the ratio of square H's length to square I's length is 3 : 5, if the length of square H is 18 meters, what is the perimeter of square I?
asked by randomchik 
Physics
A train at a constant 44.0 km/h moves east for 42 min, then in a direction 45.0° east of due north for 17.0 min, and then west for 51.0 min. What are the (a) magnitude (in km/h) and (b) angle (relative to north, with east of north positive and west of
asked by Devin 
English
Word box: barrage bigot designate diversity enigma gloat global illusion infuriate motivate pacifist queue restrict sage slake terrain vocation vow waylay wither Since he greatly enjoys woodworking and also making a living from it, his hobby and his ____
asked by Jerald 
7th Grade x y input output tables
i need help with x and y input output tables for 7th grade i don't understand what 5x means or what to do! Math hw problems: 1. y=4x+3 x=1,2,5,10,20 2.d=3.5t t=1,2,5,10,20 Please help ASAP!!!!!
asked by Sadie 
Grammar
She is a pleasant 18yearold female who states that she was at a pub where she was eating and actually fell while holding a tray and rolled her ankle. A) complete sentence B) fragment C) runon Seems to me to be a runon because of all the ands..
asked by Marie 
IMPERIALISM AND THE PROGRESSIVE ERA
_______ pioneered the field of corporate public relations. A. Henry Ford B. Ivy. L. Lee C. Samuel Gompers D. Margaret Robins
asked by Macy 
Domain and Range!
What is the domain of the function f(x)=11/Square root of 4x^2 What is the range of the function y=8/Square root of 4x^2 Show your steps too.
asked by Karlie 
Calculus
Integrate the expression β = 1/V (δV / δT) at constant pressure, assuming that β is independent of temperature. By doing so, obtain an expression for V as a function of T and β at constant P.
asked by Danielle 
math 8th grade
I am unable to figure it out. Please help! the flow rate for several household ate shown in the table. based on this data. an eight min period.how much more water would a washinh machine deliver than a showerhead? table: bath spigot 5 ; kitchen faucet 2.5;
asked by annalisa 
Physics
a horizontal force of magnitude 18.0 N is applied to a 3.07 kg book as the book slides a distance d = 0.34 m up a frictionless ramp at angle è = 30°. The book begins with zero kinetic energy. What is its speed at the end of the displacement?
asked by Emily 
Grammar
I told him that I can find no sign of infection at this time, we will treat him with a decongestant. A) complete sentence B) fragment C) runon Sounds like a complete sentence, but it could be a runon that could be fixed with "and we will treat him"?
asked by Marie 
Math
Evaluate the expression. (1)1/3 divided by 1/6= 2 Answer (2)6 divided by 2/5= 15 Answer (3) 4/9 divided by 2/3 dividied by 5/6= Answer 4/5 (4) 7/8 mulitplied by 4/5 divided 7/20=Answer 2 Please help Ms. Sue
asked by Cindy 
Chemistry
Most of the matter in the universe is of which element? How and where do elements more complicated than this form? Is this correct? Helium; more elements are form in the sun by nuclear fusion.
asked by Anonymous 
Math
A room has dimensions 2.24 m (height) × 5.30 m × 6.55 m. A fly starting at one corner flies around, ending up at the diagonally opposite corner. (a) What is the magnitude of its displacement? (b) If the fly walks rather than flies, what is the length of
asked by D 
Physics URGENT!!!
An accelerometer in a control system consists of a 2.42 g object sliding on a horizontal rail. A lowmass spring is connected between the object and a flange at one end of the rail. Grease on the rail makes static friction negligible, but rapidly damps out
asked by Anonymous 
Grammar
The patient's father died at age 69 of an MI, the patient's mother died at age 67 of diabetes and apparently a related stroke. A) complete sentence B) fragment C) runon I say it is c, especially with the mother part
asked by Marie 
Math
If the larger of two consecutive integers is subracted from twice the smaller integer, then the result is 21. Find the integers.
asked by joyce 
math
Chase spends 20 mins reading,30mins practicing Piano 15mins cleaning and 40 mins doing his Homework chase is busy for 105 mins what fraction of the time does he spend cleaning??
asked by Anonymous 
Chemistry
Compound A is added into a calorimeter that contains 0.750 litres of water. If the dissolution of 5.0 g of this compound causes the temperature of the water to rise to 45.0 °C, what is the enthalpy of solution of compound A?
asked by Marlee 
math
1. Determine the quadrant in which the terminal side of the angle is found and find the corresponding reference angle. theta = 4
asked by Anonymous 
geometry
PR~=QR, PQ=x+3, QR=x+6. The perimeter is 93. Find x and PR.
asked by Anonymous 
geometry
how to mentally find the coordinates of the midpoint of AD, given the endpoints A(4,3) and D(6,3).
asked by Anonymous 
geometry
on a number line, the midpoint is 2. Name to possible endpoints for the segment. How would this be found.
asked by Anonymous 
physics
A ball is thrown vertically upward with a speed of 24.7 m/s from a height of 2.0 m. How long does it take to reach its highest point? The acceleration of gravity is 9.81 m/s 2 . Answer in units of s
asked by Anonymous 
Physics
A cow pat was thrown 81.1m. Assuming the initial launch angle was 45 degrees, and neglecting air resistance, determine the total time the projectile was in flight. a) 4.83s b) 5.28s c) 4.07s d) 5.87s e) 4.35s
asked by Cody 
algebra
A family spends 20% of It's monthly income on food,23% on rent,and 42% on other expenses and saves the balance.if the family saves $360 per month,what is It's monthly income
asked by charkeima 
physics
A horizontal force of magnitude F = 176.0 N is used to push a box of mass m = 9.0 kg from rest a distance d = 15.0 m up a frictionless incline with a slope θ = 31.0°. 1) How much work is done by the force on the box? W F =
asked by Anonymous 
stats
A set of data is normally distributed with a mean of 200 and standard deviation of 50. • What would be the standard score for a score of 250? • What percentage of scores is between 200 and 250? • What would be the percentile rank for a score of 250?
asked by Dawn 
physics
The coefficient of kinetic friction between a suitcase and the floor is 0.29. If the suitcase has a mass of 76 kg, how far can it be pushed across the level floor with 710 J of work?
asked by xp 
bookkeeping
Using your computer, you create a file for an existing costumer. When you're finished, you should a. overwrite the existing file by giving the new file the same name. b. use Save as to save the new file under a different name c. coordinate the old and new
asked by amanda 
Physics
An electron is a subatomic particle (m = 9.11 1031 kg) that is subject to electric forces. An electron moving in the +x direction accelerates from an initial velocity of +5.16 105 m/s to a final velocity of +2.23 106 m/s while traveling a distance of
asked by Donald 
Math
The area of Egypt is about 386,700 square miles. The area of Wyoming is about 97, 818 square miles. How many times larger is Egypt than Wyoming? Do I multiply, divide or add?
asked by Rita 
Physics
A baseball is hit at ground level. The ball reaches its maximum height above ground level 3.2 s after being hit. Then 2.7 s after reaching its maximum height, the ball barely clears a fence that is 81.0 m from where it was hit. Assume the ground is level.
asked by Devin 
english
in sentece, what part os speech is from? The pistures fell from the table.
asked by joseph 
Physics
A trackstar in the long jump goes into the jump at 12 meters per second and launches herself at 20 degrees how long is she in the air
asked by Jesse lively 
Language Arts
I've got one more sentence I need help with. On the sentence, "Birds who tried to fish for food were covered with terrible black guck." Would there be a comma after Birds and after food..or would there be no commas in that sentence? Thanks...
asked by Brandi 
history
i really need help on this short answer question. Compare and Contrast the significance of the various reform movements in Europe AND Asia during the Early Modern Era. thank you!!
asked by lauren 
something
why wont me post anymore
asked by jman 
Decimals to fractions
0.60=3/5 0.015=3/200 0.05=1/200
asked by Jerald 
7th Grade x y input output tables
I don't understand them please some one help me!!!!ASAP!!!
asked by 7th Grade 
Synonyms
i need some synonyms for example is the main word is sleep i need 2 or 3 synonyms for that some examples definitions and i need to make a sketch and then i need the samething again but with a different main word different synonyms, definitions, and some
asked by Anonymous 
social studies
in the mid1990s,investers backed many ____ in hopes of making a huge profit.
asked by tristan 
chemistry
Assuming that the price of god is $11,000.00/Kg, What is the approximate $value of one mole of gold atoms?
asked by tracy 
ethics & social responsibilities
Assume that by burning coal extensively, the U. S. causes a substantial increase in pollution and acid rain, and Canada, understandably, objects. How might the U. S. and Canada resolve this dispute?
asked by Anonymous 
Algebra
Can someone explain how you could convert a repeating, nonterminating decimal to a fraction? Thanks. :)
asked by HLD 
Science
In the early 20th century, some scientists were reluctant to accept the conclusion that DNA could be the genetic material because it is so_________________.
asked by Robert 
Math
Just wanted to check over these.. "What is (–7)^5 in expanded form? –7 • –7 • –7 • –7 • –7 –7 • 5 (–7) • 7 • (–7) • 7 • –7 5 • 5 • 5 • 5 • 5 • 5 • 5" The answer is "–7 • –7 • –7 • –7 •
asked by ._. 
Math
Find (fog)(2) and (gof)(2) f(x)=Square root of 4x; g(x)=13x^2 Show work.
asked by Madison 
Physics
A 301kg boat is sailing 16.5° north of east at a speed of 2.08 m/s. Thirty seconds later, it is sailing 37.2° north of east at a speed of 3.60 m/s. During this time, three forces act on the boat: a 32.7N force directed 16.5° north of east (due to an
asked by Anonymous 
physics
A rocket is fired at a speed of 70.0 m/s from ground level, at an angle of 40.0 ° above the horizontal. The rocket is fired toward an 14.0m high wall, which is located 21.0 m away. The rocket attains its launch speed in a negligibly short period of time,
asked by cayla 
Math
which fractions are less than 5/6? 2/5 1/12 25/40 10/20 8/9 how do i know which is greater or less?
asked by angelica 
Math
marcus buys a juice from a juice machine. the juice is a bargain at .35 cents. the machine only accepts nickles, dimes and quarters. Marcus decides that each day he will place a different combination of coins into the juice machine. How many days will
asked by Larah 
chemistry
which will make you wealthy one mole of pennies (6.02e23 pennies) or one mole of Au atoms(6.02e23 atoms)?
asked by Shay 
World History
Who did more to advance Russian rule during the rise of Russia? the Byzantine, the mongols, Ivan the great, or Ivan the terrible. and WHY?
asked by Brent 
math
how do I use multiplication and the Distributive property to find the quotient of 108/6
asked by Katrina 
College US History
Why did Americans demand written constitutions to define and protect rights?
asked by Ken 
Math
Can someone help me with this math problem? 14 divided by 2 1/3
asked by Jose 
Science
If 1/10 of 1 percent of the population gets a flu vaccine what will the ratio of people treated be?
asked by Anthony 
Grammar
After a laparoscopic procedure was unsuccessful. A) complete sentence B) fragment C) runon Sounds like a fragment, explains very little that would be my best answer.
asked by Marie 
Chemistry
What mass (g) of KHP is required to neutralize 10.00 mL of 0.1092 M NaOH?
asked by Erin 
World History
Who did more to advance Russian rule during the rise of Russia? the Byzantine, the mongols, Ivan the great, or Ivan the terrible.
asked by Brent 
Physics
Two transparent media F and G are separated by a plane boundary. The speed of light in medium F is 2.0x108 m/sec and in medium G is 2.5x108 m/sec. The critical angle for which a ray of light from F to G is totally internally reflected is
asked by Judish 
math (calculus)
A room has dimensions 2.24 m (height) × 5.30 m × 6.55 m. A fly starting at one corner flies around, ending up at the diagonally opposite corner. (a) What is the magnitude of its displacement? (b) If the fly walks rather than flies, what is the length of
asked by D 
English Analysis
Reading The Stranger by the lovely Albert Camus. Just need help understanding this question: After I listed some themes I explored, my teacher asks: "Given the themes you listed, are any conventions questioned based on the treatment of a given theme?
asked by Albert 
Chemistry
Most of the earth is made of what? Is it helium?
asked by Anonymous 
exceptional children
need help with this ? good teaching practices for exceptional children: a.stress typical development b.only occur in inclusive setting c.understand the connection between behavior and development. c.only occur in special settings. i said c. would that
asked by tonia 
Chemistry
A gas is allowed to expand at constant temperature from a volume of 2.00 L to 11.20 L against an external pressure of 1.500 atm. If the gas loses 256 J of heat to the surroundings, what are the values of q, w, and ΔU? Pay careful attention to units.
asked by Syed 
physics
how can we collect sound energy from outside? then it can be converted into electricity with the help of transducer. Have to prepare a model on this. Please earlier.
asked by edward 
physics
ignoring air resistance, describe how an object would fall to the ground using the words velocity and acceleration for a ball that is thrown straight up: a.) the velocity is __on the way up (increasing, decreasing, constant, zero) b.)the velocity is __at
asked by Anita 
Grammar
It was hard/firm, nonreducible, there were no bowel sounds within the hernia. A) complete sentence B) fragment C) runon It does sound like it could be A, but at the same time it sounds like a fragment
asked by Marie 
aglebra
7 x+169x=1813 x+11 x2
asked by ashley 
Math 4th grade
How do you find the properties of addition?
asked by Penny 
Chemistry
Compound A is added into a calorimeter that contains 0.750 litres of water. If the dissolution of 5.0 g of this compound causes the temperature of the water to rise to 45.0 °C, what is the enthalpy of solution of compound A?
asked by Marlee 
Honors Algebra 2
How do you simplify terms like 3z^2 x 2z^3?
asked by Emily 
math
Find the slope m and an equation of the tangent line to the graph of the function f at the specified point. f(x)=x^2/x+4 ; (3,9/7)
asked by beauty 
geometry
DF = 3x + 1, DE = EFm = x +5. The perimeter is 31. Find x, DE and DF.
asked by Anonymous 
Science
How do fruit seeds help fertilize plants and help them grow?
asked by Monica 
Science
Large deposits of salt get into lakes in Utah due to what?
asked by Jerry 
Geometry
DF=3x+1, DE~=EF, DE=x+5. The perimeter is 31. Find x, DE, and DF.
asked by Anonymous 
IMPERIALISM AND THE PROGRESSIVE ERA
_______ pioneered the field of corporate public relations. A. Henry Ford B. Ivy. L. Lee C. Samuel Gompers D. Margaret Robins
asked by Macy 
Geometry
BE~=RT. Find x, BT, RT, and the perimeter.
asked by Anonymous 
Science
What does sleep do for the body?
asked by Jerry 
Biology
A bacterium that synthesizes an enzyme that neutralizes an environment toxin would probably use a(n) _____________ operon to regulate production of the enzyme.
asked by Robert 
Geometry
y=7x+3 Is It Vertical , Horizontal , Or Oblique ?
asked by MayMay 
Chemistry lab
What mass of NaOH is required to prepare 500.0 mL of 0.1029 M stock solution?
asked by Donnie 
Math
A number divided by 14 is 6. Find the number. Use a let statement. Write the equation. Let x = number divided so X= 14/6 X= 2.33
asked by Meagieting 
math
how i calculate this equation 32/14*6+408
asked by navi 
Geometry
PE~=PM, y=5x+5. Find the perimeter of the figure.
asked by Anonymous 
Geometry
AB~=DC and AD~=BC. Find the perimeter of the figure.
asked by Anonymous 
Physical Science
A strong magnet attracts a paper cup to itself with a certain force. Does the paper cup exert a force on the strong magnet?
asked by Anonymous 
Decimals to Fractions(simplify the fractions)
0.2=1/5? 0.9=9/10 0.80=4/5? 0.55=11/20
asked by Jerald 
physics
A ball is thrown vertically upward with a speed of 24.7 m/s from a height of 2.0 m. How long does it take to reach its highest point? The acceleration of gravity is 9.81 m/s 2 . Answer in units of s
asked by Anonymous 
Math Please Help Us!
Diagram has 4 rectangular corrals with a barn above it. Sides (front to back) are attached to the barn. Fencing is not needed along the back of the barn. P= 200 ft of fencing If each corral is 16 ft long (front to back), how wide will each corral be, what
asked by Cole n Cynthia 
Chemistry
Why do beryllium and flouine combine in a 1:2 ratio?
asked by Greg 
physics
A 1720kg car is traveling with a speed of 15.0 m/s. What is the magnitude of the horizontal net force that is required to bring the car to a halt in a distance of 47.0 m?
asked by Donald 
english
What makes citing and referencing electronic sources difficult? What can one do to ensure one has done so correctly?
asked by long 
Trig help?
are these functions periodic? i  y=abs(sin(x)) = sin(x) ii  y=cos(X^2) iii  y = cos(sin(x)) I am completely lost on these :/
asked by Josh 
4th grade math
I am a 2 digit number. You can divide me by every single digit except for 5 and 7. Add my digits together and the sum is 9. What number am I?
asked by Riley 
Chemistry
What is the coordination number of the ions in a facecentered cubic crystal? In a simple cubic crystal?
asked by Greg 
Live Tutoring
Does anyone know where I can get inexpensive online tutoring that will not cost me $30.00/hr?
asked by Josh 
math
What is the largest odd number with a 9 in the 10 millions place
asked by brody 
expanded algorithm
7x14= 3x52=
asked by Anonymous 
Calculus
Find the derivatives of the function f(y)= sinh(sinh(7y).
asked by Jake 
Science 8R
What is matter? (I LOOKED in my textbook it's not there and plus I forgot what it was)
asked by Laruen 
chemistry
What is the sum coefficient and balanced equation of: Fe(CN)3+H2S>
asked by bertshie 
precalculus
write the expression as a simple logarithm. express powers. In(x/x5)+In(x+5/x)In(x^225)
asked by ladybug 
Physics
Two students are on a balcony 24.3 m above the street. One student throws a ball, b1, vertically downward at 15.8 m/s. At the same instant, the other student throws a ball, b2, vertically upward at the same speed. The second ball just misses the balcony on
asked by Mel 
Physical Science
How much heat in joules is needed to raise the temperature of 5.5 L of water from 0 degrees Celsius to 78 degrees Celsius?
asked by Patrick 
Physics
A satellite has a mass of 5381 kg and is in a circular orbit 4.30 105 m above the surface of a planet. The period of the orbit is 2.06 hours. The radius of the planet is 4.09 106 m. What would be the true weight of the satellite if it were at rest on the
asked by Ben 
math
ms.brown has a piece of rope that is 5 3/4 feet long. she cuts off a lenght that is 1 7/8 feet long what is the best estimate of the lenght of rope that is left?
asked by dee dee 
precal
use the properties of logarithms to condense the logarithmic expression. write the expression as a single logiarithm whose coefficient is 1. 2IN(x+3)3INx
asked by ladybug 
exceptioal children
assesment for young children: a.means gathering and recording info. b.is the same thing as screening c.same as testing d.is never appropriate i think it would be a
asked by tonia 
trig
Find the following values for each function a. f(0) b. f(1) c. f(x) d. f(x+1) f(x)=2x^2+3x4 I you plug in the value for each x, I just want to check my answers. Thanks.
asked by Madison 
MATH
15 PERCENT OF EIGHTY DOLLARS WILL BE TWELVE DOLLARS. SIMPLE WAY WOULD BE TO TAKE TEN PERCENT OF 80 IS 8 DOLLARS AND TAKE HAVE OF EIGHT COMES UP TO 4 THEN ADD 8 PLUS 4 WITH 12 BEING THE ANSWER. SUPPLY A SIMPLE WAY
asked by booker 
Trigonometry
Find the domain of the function. Write your answer using infinity and union. f(x)=x/x^2+1 f(x)=2x^2/x3
asked by Carrie 
trig
Find the domain of each function. f(x)=Sqareroot of 5x f(x)=x^3/x^216
asked by Natasha 
Physics PLEASE HELP
An accelerometer in a control system consists of a 2.42 g object sliding on a horizontal rail. A lowmass spring is connected between the object and a flange at one end of the rail. Grease on the rail makes static friction negligible, but rapidly damps out
asked by Anonymous 
Trig.
I'm trouble solving for theta. Any help is appreciated. 0.73377324 = sin(theta)/cos(theta)
asked by James 
physics
A rocket is fired at a speed of 70.0 m/s from ground level, at an angle of 40.0 ° above the horizontal. The rocket is fired toward an 14.0m high wall, which is located 21.0 m away. The rocket attains its launch speed in a negligibly short period of time,
asked by Anonymous 
english
in sentence, what part of speech is diplomacy? Diplomacy is the best article.
asked by joseph 
Reiny!!!! math help
We understand how to do the questions now and we are really glad n thankful, but the graphing portion of it is confusing. Continuation of the function. The teacher wants us to plot the points from the different parts of the questions we answered and with
asked by Cole n Cynthia 
Algebra
(3/10)x3=6
asked by Stephanie 
math
What is the domain of the function f(x)=11/Squareroot of 4x^2 a.(11,11) b.[11,11] c. (2,2) d. [2,2] What is the range of the function? y=8/Squareroot of 4x^2 a. [4, infinity) b. (infinity, 4] c. [8, infinity) d. (infinity, 12] e. [6, infinity) f.
asked by Laurie 
Grammar
It seems to be worse when he plays golf, it does not bother him when he bowls. A) complete sentence B) fragment C) runon It sounds like a fragment but yet a run on
asked by Marie 
math
Find (gof)(2) f(x)=Squareroot of 4x; g(x)=13x^2
asked by Laurie 
Maths
in sequence 4,7,10,13.... PROVE the difference between squared of any two terms is a multiple of 3
asked by Bap 
math
Find a. fog b. gof c. fof d. gog f(x)=4x g(x)=3x5
asked by Bailey 
precal
change the exponential expression to an equivalent expression involving a logarithm. 4.1=a^2
asked by ladybug 
Math
Please refresh my memory! How do you solve 5x  3/2x? Thank you!
asked by Erin :) 
Finance
"annual raises must average 4% per department among 6 team members. No team member can get exactly 4%, and the raise must be at least 2% and no more than 6%." How do I start this?
asked by Barbara 
Physics
A batter hits a pitched ball when the center of the ball is 1.35 m above the ground.The ball leaves the bat at an angle of 45° with the ground. With that launch, the ball should have a horizontal range (returning to the launch level) of 106 m. (a) Does
asked by Devin 
Algebra 2
Write the standard form of the equation of the line through the given point with the given slope. Through point: (1,2) slope=7
asked by SoccerStar 
Physics
A train at a constant 44.0 km/h moves east for 42 min, then in a direction 45.0° east of due north for 17.0 min, and then west for 51.0 min. What are the (a) magnitude (in km/h) and (b) angle (relative to north, with east of north positive and west of
asked by D 
math
write an.algebraic equation for autumn has,1 brother. this is 3 less than the number of brothers chase has,b
asked by jenny 
Physics  repost
A satellite has a mass of 5381 kg and is in a circular orbit 4.30 105 m above the surface of a planet. The period of the orbit is 2.06 hours. The radius of the planet is 4.09 106 m. What would be the true weight of the satellite if it were at rest on the
asked by Ben 
exceptional children
appropriate social skills in young children:A.are aquired over time. b.are easily taught. c.cannot be taught. or c.arenot influenced by a childs temerament.
asked by tonia 
Algebra Grade 7
parallelograms small parallelogram 22 cm ?? (find this number) big parallelogram 16 cm 32 cm What is the missing number and how can I find it?
asked by randomchik 
Physics
What is the speed of a hockey puck of mass 0.15 kg if it experiences a force 60 in N for the extent of a slap shot of 0.25 m?
asked by Sulu 
science
Is venus the 1st, 2nd, 3rd, 4th, 5th, 6th, 7th, 8th or 9th smallest planet? Also is it the 1st, 2nd, 3rd, 4th, 5th, 6th, 7th, 8th or 9th largest planet?
asked by Yog 
Maria
How did political events in Engand change colonial rights?
asked by History 
science
What is the planet venus best known for?
asked by Slippy 
Math
Find the derivatives of the function g(t)= cosh^3 t.
asked by Joe 
Algebra
What is the inverse of y = (3/7)x + 9 I know you have to switch x and y so I get to x9=(3/7)y from there I don't know what to do.
asked by Phil 
Problem
I was wondering why after you post a lot of questions it wont let u post any more plz help.
asked by jman 
English
Identify the subject and the verb in the sentences below. 1. There were a large saguaro cactus and a barrel cactus visible from our room. 2. There goes the tree specialist to fertilize our neighbor's Japanese maple. 3. Bright is her smile, but heavy is her
asked by DaKosha 
Science
We have to build a catapult that can launch a marshmallow at least 10 feet. Can anyone give me any ideas?
asked by Lance 
math
The second of two numbers is 6 times the first. Their sum is 77. Find the numbers.
asked by Daniela 
Chemistry
Which of these methods is a better representation of the error in a chemical experiment: propagation of error or standard deviation and why? I think it would be standard deviation
asked by Cristian 
science
Why does air move in the atmosphere/why is there wind?
asked by SoccerStar 
Math
(2.0)t^2/2 = (9.5)t t=????
asked by D 
something
I am doing it on my phone. It wont let me do it on my computer
asked by jman 
Physics
When a parachute opens, the air exerts a large drag force on it. This upward force is initially greater than the weight of the sky diver and, thus, slows him down. Suppose the weight of the sky diver is 914 N and the drag force has a magnitude of 1120 N.
asked by Anonymous 
Physics
When I look into my beautiful 1981 Vanagon's rear view mirror, I see a semitruck coming toward me way too fast. The truck has lost its brakes and is traveling at 140 km/hour down the steep mountain road we're on. At the last second, the truck exits onto
asked by Dianne 
Science
How many grams of ammonium nitrate is equivalent to 1 gram of calcium nitrate
asked by Bob 
Grammar
We will teach him to take a pulse today, and he will record his fast pulse rates and when this occurs and what he is doing. a. complete sentence b. fragment c. runon
asked by Marie 
Math Help
A driver drove at a speed of s mph for 4 hours. How far did the driver go? What is the algebraic expression?
asked by Anonymous 
For ms sue
i am doing this on my phone not computer plz do you any way to fix it. I am a member
asked by jman 
Algebra 1
What is the slope, m, of the line that contains the points (12, 16), (3, 4) and (6,8)?
asked by HELPP!!! 
Social Studies 8R  help!!!
How did the establishment of reservations affected the Native Americans?
asked by Laruen 
Math,statistics
The sum of 16 reciprocals (1 over the number) is found to equal 4. What is the harmonic mean of the original (i.e., nonreciprocated) scores?
asked by Tanya 
Science 8R
How do you determine the volume of an irregular solid?
asked by Laruen 
Math
The mean of 40 scores is found to be 29. If each score had 5 added to it, and then divided by 4, what would the mean of these new scores be?
asked by stacy 
Math
The mean of 40 scores is found to be 29. If each score had 5 added to it, and then divided by 4, what would the mean of these new scores be?
asked by stacy 
Math
The mean of 40 scores is found to be 29. If each score had 5 added to it, and then divided by 4, what would the mean of these new scores be?
asked by stacy 
Math,statistics
The sum of 16 reciprocals (1 over the number) is found to equal 4. What is the harmonic mean of the original (i.e., nonreciprocated) scores?
asked by Tanya 
Trigonometry help please!
Assume that height is a function of age and that H=f(a) is the average height (in inches) for females in the US at age (a) years. What is the practical interpretation of f(z)+20? a. 20 years older than the average US female who is z inches tall b. 20
asked by Lauren 
science
Is venus the 1st, 2nd, 3rd, 4th, 5th, 6th, 7th, 8th or 9th smallest planet?
asked by Slippy 
Physics
A 2 kg block is pulled from rest along a horizontal surface by a rope with a force of 16 N. It experiences a constant frictional force of 3 N. How far has the block moved in the first five seconds?
asked by arcos15 
Grammar
An example would be. This one is harder to tell A) complete sentence B) fragment C) runon I want to say it is b a fragment..
asked by Marie 
Trig!
Find the following values for each function. A. f(0) B. f(1) C. f(x) D. f(x+1) f(x)=2x^2+3x4 and f(x)=x^2/x+1
asked by Ashley 
something
i didn't do any thing all i did was change names a lot
asked by jman 
Trigonometry
Find the domain of each function. And show your steps please. f(x)=x/x^2+1 f(x)=2x^2/x3 f(x)=Square root of 5x f(x)=x^3/x^216
asked by Karen 
Math
Find the domain and range of the function. f(x)=x1 3
asked by Abby 
Chemistry
Integrate the expression β = 1/V (δV / δT) at constant pressure, assuming that β is independent of temperature. By doing so, obtain an expression for V as a function of T and β at constant P.
asked by Sarah 
college physics
air flows through a main duct at a mass flow rate of 4kg/s the main duct enters a junction that splits into two branch ducts one with a cross section of 20cm x 30cm and one with a cross section og 40cm x 60cm if the mass flow rate in the large branch is
asked by yaritza 
social studies
Which city is northwest of Salt Lake City?
asked by jaazaniah 
Math
In a right triangle, the middle angle is 12 more than twice the smallest angle. What are the measures of the smallest and middle angles?
asked by Jaime 
math 4
i am number less than 10. my hundredths digit is 3 more than my thousandths digits.my tenths digit is less than hundredths and my ones is the sum of my tenths and hundreds digit. what number can i be?
asked by yulai 
Grammar
She states that she has developed aches and pains and feels very tired and is not able to walk, she also suffers from muscle cramps. A) complete sentence B) fragment C) runon See I would say this reminds me of a comma splice but also a runon. So I say c
asked by Marie 
Math
which fractions are less than 5/6? 2/5 1/12 25/40 10/20 8/9 how do i know which is greater or less?
asked by angelica 
Science 8R  Volume Lab
I doing this lab for my science class about volume. In class today I collected my data. I measure the regular solid (LxWxH) and as for the irregular solid I use water displacement by putting the irregular solid (that is small) in the graduated cylinder
asked by Laruen 
Math
Need help with this one...The formula for finding BMI is (w+705)/h over h. where h is height in inches and w is weight in lbs. What is the BMI for a student wh is 5 ft tall and 100 lbs? When I try doing it I'm getting a long decimal number so I'm thinking
asked by Brandi 
Math
Mark has a 40 foot length of rope he decides tocut it into two pieces. He wants one length four times as long as the other. How long is each piece?
asked by Anonymous 
Physics
A crate of unknown mass is pulled upward by a rope. The tension in the rope is 11 N and the crate accelerates upward at a rate of 1.3 m/s2. Determine the mass of the crate. _________kg
asked by arcos15 
Math
If a man is 4ft and cast a 3ft shadow how long of a shadow would an 18ft flagpole cast?
asked by Anthony 
precalculus
Change the logarithmic expression to an equivalent expression involving an exponent. Log7343=x the 7 should drop down lower than the 343.
asked by ladybug 
chemistry
invent a term to describe a certain number of something you use that isn't already being used. Define and explain
asked by tracy 
Chemistry
What mass of NaOH is required to prepare 500.0 mL of 0.1029 M stock solution?
asked by Erin 
math
use Distributive property to solve equation 9(b4)=27
asked by linda 
Physics
A solenoid with a nickel core has 1000 turns on 0.5 m. The crosssectional area of turn is 50 cm2. What is the magnetic field energy when a current 10 A passes through it ? Given permeability of nickel is 200.
asked by Judish 
Physics
If the circle and square have the same area, then magnetizing force at the center of the coil as a result of current flowing through the coil will be in the ratio
asked by Judish 
Art
If a painter paints 8 different pictures to get a better perspective and then only selects 1 picture to illustrate her mood: what would this be called?
asked by Marcus