Questions Asked on
October 26, 2010

Chemistry
the activation energy for the decomposition of HI(g) to H2(g) and I2(g) is 186kj/mol. the rate constant at 555k is 3.42 x 10^7 L/mol*s. What is the rate constant at 645K? Please show all steps USING THE ARRHENIUS EQUATION. Here is my work so far: K = A
asked by Jim 
math
how can adding doubles help you multiply by 2?
asked by boo 
chemistry
Exactly 10mL of water at 25 degrees C was added to a hot iron skillet. all of the water was converted into steam at 100 degrees C. If the mass of the pan was 1.20 kg and the molar heat capacity of iron is 25.19 L/mol*C, what was the temp change of the
asked by Brittney 
chem 101
using the unit conversion method derive an equation to calculate heat produced from the HClNa OH reaction
asked by andrew 
Statistics
find the 90% confidence interval for the variance and standard deviation of the ages of seniors at Oak Park College if a sample of 24 students has a standard deviation of 2.3 years. Assume the variable is normally distributed. Can someone explain the steps
asked by Diandra 
Math
Why did Airhead eat the dollar he brought to school
asked by Valerie 
Chemistry
Electromagnetic radiation with a wavelength of 665 nm appears as orange light to the human eye. The energy of one photon of this light is __________ J.
asked by Sarah 
Chem
Which of the following will be more soluble in an acidic solution than in pure water? 1.PbBr2 2.CsClO4 3.Cd(OH)2 4.Ag2(SO4) 5.BaSO3 How can I find which is which? Could you tell me the best way to find which one is more soluble? Thank you!
asked by Kim 
spanish
for homework we have to unscramble these words: lcpoa, maidolrg, caluphin, masarac, patneon, pelpa padcoi can anyone help?
asked by julie 
Chemistry
At 298.K and 1.00 atm, assume that 22 mL of NO gas reacts with 18 mL of oxygen gas and excess water to produce nitric acid according to the following equation: 2 NO(g) + 3/2 O2 (g)+ H2O(l)?? 2 HNO3(g). If all of the nitric acid produced by this reaction is
asked by Ricky 
3rd grade shurley english
what does s, f,scs, scv mean when indentifying(labeling) sentences thanks
asked by josh 
physics
A child holds a sled on a frictionless, snow covered hill, inclined at an angle of 29◦. If the sled weighs 61 N, find the force ex erted on the rope by the child. Answer in units of N.
asked by alysha 
calculus
A particle is moving along the curve below. y = sqrt(x) As the particle passes through the point (4,2), its xcoordinate increases at a rate of 4 cm/s. How fast is the distance from the particle to the origin changing at this instant?
asked by sanjay 
Chemistry
One of the concerns about the use of Freons is that they will migrate to the upper atmosphere, where chlorine atoms can be generated by the following reaction: CCl2F2 > CF2Cl + Cl Chlorine atoms can act as a catalyst for the destruction of ozone. The
asked by Jim 
business
A petty cash fund of $100 is replenished when the fund contains $3 in cash and receipts for $93. The entry to replenish the fund would debit Cash Over and Short for $4. credit Miscellaneous Revenue for $4. credit Cash Over and Short for $4. debit
asked by vivian 
physics
Estimate the force with which a karate master strikes a board if the hand's speed at time of impact is 4.78m/s, decreasing to 1.55m/s during a constant time of 0.00239 s with the board. The mass of coordinated hand and arm is 0.701 kg. Answer in units of
asked by Ashleigh 
physics
A 625kg racing car completes one lap in 14.3 s around a circular track with a radius of 55.0 m. The car moves at constant speed. (a) What is the acceleration of the car?
asked by rachel 
math
the system of linear equations below has a unique solution for all but one value of a: 6 x−12 y=−6 58 x+a y=−58 What is this exceptional value for a?
asked by Tiff 
chemistry
write a net ionic equation for the following: 1)Iron (III) chloride reacts with Potassium hydroxide to produce Iron (III) oxide, Potassium chloride, and Hydrogen gas. 2)Hydrochloric acid reacts with Potassium carbonate to produce Potassium chloride,
asked by rachel 
physics
A 3.0kg body is initially moving northward at 15 m/s. Then a force of 15 N, toward the east, acts on it for 4.0 s. (a) At the end of the 4.0 s, what is the body’s final velocity? (b) What is the change in momentum during the 4.0 s?
asked by thomas 
Chemistry
the activation energy for the decomposition of HI(g) to H2(g) and I2(g) is 186kj/mol. the rate constant at 555k is 3.42 x 10^7 L/mol*s. What is the rate constant at 645K? Please Show all Steps! thank you!
asked by Jack 
chemistry
How many liters of a 0.530M sucrose (C12H22O11) solution contain 1.3kg of sucrose?
asked by rachel 
physics
A projectile is fired at an upward angle of 45 degrees from the top of a 265 m cliff with a speed of 350 m/s. What will be it's speed when it strikes the ground below?
asked by jessica 
chemistry
Lead is often found in Earth's crust as several lead compounds. Calculate the mass in kilograms of the amount of each of the following lead compounds that contains 4500kg of lead. 1)PbCO3 (cerussite) 2) PbSO4(anglesite)
asked by rachel 
Phsyics
A bullet of mass 1.8 X 103 kg is moving at +500. m/s when it impacts a tree stump. It penetrates into the stump 6.00 centimeters before coming to rest. 1. Assuming the acceleration to be constant, calculate the force (including direction) exerted by the
asked by Rachel 
trig
if sin theta = 2/3 in quadrant 1, find sec theta. HELP!!!
asked by tash 
physics
A child holds a sled on a frictionless, snow covered hill, inclined at an angle of 29◦. If the sled weighs 61 N, find the force ex erted on the rope by the child. Answer in units of N.
asked by alysha 
physics
A 3.0 m long rigid beam with a mass of 100 kg is supported at each end. An 60 kg student stands 2.0 m from support 1. How much upward force does each support exert on the beam? support 1 support 2
asked by kate 
Calculus
Find the differential dy and evaluate dy for the given values of x and dx. y=cosx x=pi/3 dx=0.05 2) y=e^x/10, x=0, dx=0.1 This is a different format than my teacher used in class so I'm confused. Help please!
asked by kelli 
physics
A 0.005kg bullet traveling horizontally with a speed of 1.00 103 m/s enters an 20.3kg door, imbedding itself 10.6 cm from the side opposite the hinges as in the figure below. The 1.00mwide door is free to swing on its hinges. (c) At what angular speed
asked by Amy 
physics
A motorcycle (mass of cycle plus rider = 3.0 102 kg) is traveling at a steady speed of 20 m/s. The force of air resistance acting on the cycle and rider is 1.8 102 N. Find the power necessary to sustain this speed under the following conditions. (a) the
asked by joshua 
English
I have to tell if the verb is transitive or intransitive 1. Most people think of Bamboo as a tree or bush? 2. Bamboo belong to the grass family. 3. More than 500 kinds of bamboo grow in the tropic? 4.These plants thrive in warm climate. 5. People use
asked by Ty 
College Chemistry
Given that delta Hrxn for OH ions is 229.6 kJ/mol, calculate the enthalpy of neutralization when I mole of a strong monoprotic acid (such as HCl) is titrated by 1 mole of a strong base (such as KOH) at 25degrees C.
asked by Alexis 
Physics
A 930 kg sports car collides into the rear end of a 2500 kg SUV stopped at a red light. The bumpers lock, the brakes are locked, and the two cars skid forward 2.6 m/s before stopping. The police officer, knowing that the coefficient of kinetic friction
asked by Eden 
chemistry
i already posted this question, but im still confused on it. Dinitrogentetraoxide partially decomposes according to the following equilibrium: N2O4 (g) > 2NO2 (g) 2NO2 (g) Initial conc. 0.400 mol 0 mole (no reaction yet) Change 0.3945 mol + 2 x 0.3945
asked by Jane 
college Physics
Two identical 0.18 kg blocks (labeled 1 and 2) are initially at rest on a nearly frictionless surface, connected by an unstretched spring, as shown in the upper diagram, where x2 = 0.06 m. Then a constant force of 9 N to the right is applied to block 2,
asked by Anonymous 
Statistics
Find the probability that at most 5 defective bolts will be found in a box of 200 bolts if it is known that 2 per cent of such bolts are expected to be defective .(you may take the distribution to be Poisson; e4= 0.0183).
asked by Shams 
science
How much heat in kcal must be added to 0.32 kg of water at room temperature (20°C) to raise its temperature to 36°C?
asked by Anonymous 
Chem
Classify each situation by the equation that would quantify it. A. A container of ammonia cleaner is stored in the janitor's closet off a lecture hall after being used at night for cleaning. The container has a very small hole in the lid. The next morning
asked by Kaylee 
Physics  Charged objects (check + help)
Three charged objects are located t the vertices of a right triangle. Charge A (5*10^6) has Cartesian coordinates (0,4; Charge B (5.0*10^6) is at the origin; charge c (+4.0*10^6) has coordinates (5,0), where the coordinates are in meters. What is the
asked by Anonymous 
physics
Suppose that a binary star system consists of two stars of equal mass. They are observed to be separated by 330 million kilometers and take 3.0 Earth years to orbit about a point midway between them. What is the mass of each?
asked by Christen 
business math
Meg's pension plan is an annuity with a guaranteed return of 7% interest per year (compounded monthly). She would like to retire with a pension of $20000 per month for 20 years. If she works 28 years before retiring, how much money must she and her
asked by Liz c 
6th grade
100 milliliters of 10 degrees celsius water plus 100 milliliters of 90 degrees celsius water, what is the final temperature?
asked by nataly 
physics
Blood of density 1010kg/m^3 that is to be administered to a patient is raised about 1.51 m higher than the level of the patient's arm. How much greater is the pressure of the blood than it would be if the container were at the same level of the arm? The
asked by Ashleigh 
calculus
A particle is moving along the curve y=4((3x+1)^.5). As the particle passes through the point (5,16) its coordinate increases at a rate of 2 units per second. Find the rate of change of the distance from the particle to the origin at this instant.
asked by sja 
Physics
A 160 kg astronaut (including space suit) acquires a speed of 2.20 m/s by pushing off with his legs from an 1950 kg space capsule. What is the change in speed of the space capsule? As the reference frame, use the position of the space capsule before the
asked by Nikohl 
Statistics
A packaging device is set to fill detergent power packets with a mean weight of 5 Kg. The standard deviation is known to be 0.01 Kg. These are known to drift upwards over a period of time due to machine fault, which is not tolerable. A random sample of 100
asked by Shams 
chemistry
A buffer solution contains 0.200 M NH3 and 0.250 M NH4Cl. What is the pH of the buffer solution after the addition of 10.0 mL of 0.100 M NaOH to 50.0 mL of the buffer? Kb for NH3 is 1.8 x 105.
asked by Brett 
chemistry
write a net ionic equation for the following: Copper (II) sulfate reacts with Ammonium hydroxide to produce Copper (II) oxide, Ammonium sulfate, and water.
asked by rachel 
calculus
A landscape architect wishes to enclose a rectangular garden on one side by a brick wall costing $30/ft and on the other three sides by a metal fence costing $20/ft. If the area of the garden is 2,000 ft2, find the dimensions of the garden that minimize
asked by Anonymous 
chemistry
During a strenuous workout, a student generates 2000 kJ of heat energy. What mass of water would have to evaporate from the student's skin to dissipate this much heat?
asked by Brittney 
chemistry
what is the name for the compound Al2I3??
asked by Rebecca 
Social Stuides
Why did the French and Spanish start fighting?
asked by Anjali 
Physics
A baseball is thrown at an angle of 25 degrees relative to the ground at a speed of 23.0 m/s. If the ball was caught 42.0 m from the thrower, how long was it in the air? How high was the tallest spot in the ball's path?
asked by Luis 
10th grade
Lack of iron in the photic zone of the open ocean restricts the size of plankton populations. Iron is what kind of factor for marine plankton?
asked by Nichole 
Physics
A 160 kg astronaut (including space suit) acquires a speed of 2.20 m/s by pushing off with his legs from an 1950 kg space capsule. What is the change in speed of the space capsule? As the reference frame, use the position of the space capsule before the
asked by Nikohl 
math
kelly subtracted 2.3 from 20 and got 17.7 explain why this answer is reasonable
asked by lala 
Physics
A block of mass = 2.20 kg slides down a 30.0 deg incline which is 3.60 m high. At the bottom, it strikes a block of mass = 7.00 kg which is at rest on a horizontal surface . (Assume a smooth transition at the bottom of the incline.) If the collision is
asked by Eden 
Physics
Kevin stands at the edge of a cliff, holding one ball in each hand. He throws one of the balls straight up with speed v, and at the same time he throws the other ball straight down, also with speed v. Ignoring air resistance, which ball hits the ground
asked by Gharib 
gen Chem
I've attempted this problem but not sure if i'm on the right track. Use the enthalpy diagram provided above and apply Hess’s Law to determine the standard enthalpy of formation for C12O36H20N12 (s) using the results from part (a) and the following
asked by Vince 
econ
american and japanese workers can each produce 4 cars a year.An American worker can produce 10 tons of grain a year,whereas a japanese worker can produce 5 ton of grain a year.to keep things simple,assume that each country has 100 million workers.
asked by luther 
Science
PLEASE HELP Science Test Friday Study Guide? I have 1 to 22 already but I am stuck now I have to have this completed and correctly for my study guide. I have a C right now I need an A on this test to bring it up to a B or I stay on restriction please help
asked by Jennifer 
Health care finance
John Doe is in the 40 percent tax bracket. He is considering investing in HCA bonds that carry a 12 percent interest rate. A. What is his aftertax interest rate on the bonds?
asked by Meme 
Physics
A 3.6 m diameter merrygoround is rotating freely with an angular velocity of 0.78 rad/s. Its total moment of inertia is 1700 kg m^2. Four people standing on the ground, each of mass 62 kg, suddenly step onto the edge of the merrygoround. What is the
asked by tiffany 
Chemistry
Arrange the following atoms in order of increasing effective nuclear charge experienced by the electrons in the n = 3 electron shell: K,Mg,P,Rh,and Ti. I think that the effective nuclear charge increases as you go up a group and across a period. so Rh, K,
asked by Don 
Chemistry
Arrange the following atoms in order of increasing effective nuclear charge experienced by the electrons in the n = 3 electron shell: K,Mg,P,Rh,and Ti. I think that the effective nuclear charge increases as you go up a group and across a period. so Rh, K,
asked by Don 
Finance
Suppose you buy a 7% coupon, 20 year bond today when it's first issued. If interest rates suddenly rise to 15%, what happens to the value of your bond?
asked by Valerie 
Chemistry  College
The ionization energy of a certain element is 472 kJ/mol. However, when the atoms of this element are in the first excited state, the ionization energy is only 166 kJ/mol. Based on this information, calculate the wavelength of light emitted in a transition
asked by Alexis 
AP Physics
A stone is tied to a string (length = 0.450 m) and whirled in a circle at the same constant speed in two different ways. First, the circle is horizontal and the string is nearly parallel to the ground. Next, the circle is vertical. In the vertical case the
asked by PLEASE HELP 
english
I am going to write about illegal immigration and my topic is putting fence on the border and I am for it. my question that i need help with is, How can fence reduce illegal immigration? Thanks for your help?
asked by Kelly 
physics
An open barge has the dimensions l=22 m, w=40 m, and h=12m. If the barge is made out of 4.0 cm thick steel plate on each of its four sides and its bottom, what mass of coal can the barge carry in fresh water without sinking? Is there enough room in the
asked by wilfred 
chemistry
A pure copper cube has an edge length of 2.00cm. How many copper atoms does it contain? (volume of a cube = (edge length)^3; density of copper = 8.96g/cm^3 )
asked by rachel 
chemistry
what volume in Liters of 0.15M KCl solution is required to completely react with 0.150 liter of a 0.175M Pb(NO3)2 solution according to the following balanced equation? 2KCl(aq)+ Pb(NO3)2(aq)PbCl2(s)+ 2KNO3(aq)
asked by mike 
Physics
Two balls, of masses mA = 34 g and mB = 60 g, are suspended as shown in the figure . The lighter ball is pulled away to a 60 degree angle with the vertical and released. The length of the string is 30cm. What will be the maximum height of each ball after
asked by Nikohl 
5th math
how many 3,000s in 270,000? and how many 90s in 63,000? please show me the work also , so i can do the rest right. thanks
asked by pat 
chemistry
is Sodium Dichromate a binary or Ternary compound?
asked by lucy 
physics
A projectile of mass 1.450 kg is shot straight up with an initial speed of 20.0 m/s. (a) How high would it go if there were no air friction? (b) If the projectile rises to a maximum height of only 13.9 m, determine the magnitude of the average force due to
asked by joshua 
Physics
A large plate falls to the ground and breaks into three pieces. m1 falls with v1=3m/s, 25 degrees to the left from the vertical. m2 falls with v2=1.79m/s, 45 degrees up from the horizon. And m3=1.3kg falls with v3=3.07m/s vertically down. How would I find
asked by Gharib 
physics
A 47.0 g golf ball is driven from the tee with an initial speed of 60.0 m/s and rises to a height of 24.4 m. (a) Neglect air resistance and determine the kinetic energy of the ball at its highest point. (b) What is its speed when it is 7.0 m below its
asked by joshua 
Physics Help!!
Hurricanes can involve winds in excess of 120 km/h at the outer edge. Make a crude estimate of the energy of such a hurricane, approximating it as a rigidly rotating uniform cylinder of air (density 1.3 kg*m^3 of radius 120 km and height 4.5 km. Make a
asked by tiffany 
Calculus
When a ball is thrown straight down from the top of a tall building, with initial velocity 30 ft/sec, the distance from the release point at time t in seconds is given by s(t)=16t^2+30t. If the release point is 300 ft above ground, what is the velocity of
asked by Leanna 
physics
10 moles of a gas initially at temperature 300 K is compressed adiabatically from a volume of 2 cm3 to a volume of 325 cm3. To the nearest tenth of a joule what is the work done by the piston? (It is a monatomic ideal gas.)
asked by sandhu 
physics
a 5kg crate is resting on a horizontal plank. the coefficient of static friction is .5 and the coefficient of kinetic friction is .4. after one end of the plank is raised so the plank makes an angle of 25 degrees with the horizontal, the force of friction
asked by colin 
algerbra1
translate to an algebraic expression 49 less than b
asked by jazz 
physics
A 3.00 102 N force is pulling an 80.0 kg refrigerator across a horizontal surface. The force acts at an angle of 18.0° above the surface. The coefficient of kinetic friction is 0.200, and the refrigerator moves a distance of 8.00 m a) Find the work done
asked by Anonymous 
physics
What minimum speed does a 150 g puck need to make it to the top of a 5.90 mlong, 21.0 degree frictionless ramp?
asked by Keechy 
Phsyics
A bullet of mass 1.8 X 103 kg is moving at +500. m/s when it impacts a tree stump. It penetrates into the stump 6.00 centimeters before coming to rest. 1. Assuming the acceleration to be constant, calculate the force (including direction) exerted by the
asked by Rachel 
Chemistry
The O−H bond enthalpy is 463 kJ/mol. What is the wavelength of light that will cause dissociation of H2O into the hydrogen atom and the hydroxyl radical
asked by Sara 
Geometry
the measures of three angles of a triangle are in the ratio 4:5:6. Find the measure of each
asked by Msr 
chemistry
A piece of iron(10)moles was dissolved in contrated Hcl.the reaction was form H2 and Fecl2. determine the amout of Fecl2 formed.
asked by tamaica 
algebra
Express each situation as an algebraic expression: 1. An electric company charges $10 a month plus $.15 per kilowatthour of electricity used. What is the monthly bill in dollars if K kilowatthours are used?
asked by Anonymous 
physics
A motorboat accelerates uniformly from a velocity of 6.5 m/s to the west to a velocity of 1.5 m/s to the west. If its acceleration was 2.7 m/s to the est, how far did it travel during the acceleration
asked by MO 
Stats
Suppose that 8% of a certain batch of calculators have a defective case, and that 11% have defective batteries. Also, 3% have both a defective case and defective batteries. A calculator is selected from the batch at random. Find the probability that the
asked by Tatjana 
math..probabilities
You type four letters to four different people and address the envelopes. If you then insert the letters into the envelopes randomly, what is the probability that exactly three letters will go into the correct envelopes? 1/2 1/3 1/4 0 Explain your answer.
asked by M.A. 
physics
Hurricanes can involve winds in excess of 120 km/h at the outer edge. Make a crude estimate of the energy of such a hurricane, approximating it as a rigidly rotating uniform cylinder of air (density 1.3 kg/m^3) of radius 120 km and height 4.5 km. Make a
asked by kim 
physics
Ball 1, with a mass of 180 g and traveling at 18 m/s, collides head on with ball 2, which has a mass of 370 g and is initially at rest (a) What are the final velocities of each ball if the collision is perfectly elastic? (b) What are the final velocities
asked by Lucy 
eth/125
Religious discrimination against Muslims and Arabappearance people rose steeply in the United States after 9/11. Consider the differences between Arabs, Muslims, and Arab Muslim extremists and fundamentalists. What may be done to maintain the American
asked by Anonymous 
chem
35.00 grams of propane C3H8 are burned. How many grams of CO2 ARE PRODUCED
asked by sue 
physics
A 47.0 g golf ball is driven from the tee with an initial speed of 60.0 m/s and rises to a height of 24.4 m. (a) Neglect air resistance and determine the kinetic energy of the ball at its highest point. (b) What is its speed when it is 7.0 m below its
asked by joshua 
Chem.
λ for one line of the hydrogen spectrum is .4118 x 104 cm. Use this value in the Rydberg equation to calculate the RH value using n1 = 2, and n2 = 6.
asked by Toni 
chemistry
What volume of each of the following solutions contains 0.13mol of KCl? 1).345M of KCl 2)2.0M of KCl 3).895M of KCl
asked by rachel 
language and arts
i have a hard time in languages and arts
asked by gabriel 
Physics
A bicycle chain is wrapped around a rear sprocket (r = 0.038 m) and a front sprocket (r = 0.11 m). The chain moves with a speed of 1.6 m/s around the sprockets, while the bike moves at a constant velocity. Find the magnitude of the acceleration of a chain
asked by Zaphod 
Calculus
When air expands adiabatically (without gaining or losing heat), its pressure P and volume V are related by the equation PV1.4=C where C is a constant. Suppose that at a certain instant the volume is 470 cubic centimeters and the pressure is 89 kPa and is
asked by Jason 
Physics C: Mechanics
A yoyo has a rotational inertia of 760 g·cm2 and a mass of 200 g. Its axle radius is 4.0 mm, and its string is 100 cm long. The yoyo rolls from rest down to the end of the string. (a) What is the magnitude of its linear acceleration? cm/s2 (b) How long
asked by Xavier Hernandez 
physics
A railroad car of mass 2.3*10^4 kg moving at 4.00 m/s collides and couples with two coupled railroad cars, each of the same mass as the single car and moving in the same direction at 1.20 m/s. (a) What is the speed of the three coupled cars after the
asked by Heather 
math
The odometer in your mother's car reads 2056 miles less than the odometer in your uncle's car. Your mother's odometer reads 22010 miles. About how many miles are on the odometer of your uncle's car?
asked by Charlotte 
Chemistry
One method of removing CO2(g) from a spacecraft is to allow the CO2 to react with LiOH. 2LiOH(s)+CO2(g)>Li2CO3(s)+H2O(l) How many liters of CO2(g) at 25.5 degrees celsius and 749 Torr can be removed per 9kg of LiOH consumed?
asked by Kaylee 
Stats
Suppose that 8% of a certain batch of calculators have a defective case, and that 11% have defective batteries. Also, 3% have both a defective case and defective batteries. A calculator is selected from the batch at random. Find the probability that the
asked by Tatjana 
Global Issues (ms.sue)
It is a known fact that all though there are some countries in the world that are abundant in wealth and possessions, there are also other countries at different parts of the world which are developing countries and are deprived of most of the goods that
asked by y912f 
chemistry
Am doing a lab report on the determination of the product of a redox reaction: the reaction of bromate and hydroxylammonium ions. here is the lab Experiment: In this experiment you will determine the equation of a redox reaction by the use of experimental
asked by khela 
10th grade
Lack of iron in the photic zone of the open ocean restricts the size of plankton populations. Iron is what kind of factor for marine plankton?
asked by Nichole 
algebra
What is the inverse of the function y=3^x
asked by Roger 
chemistry
A chemist wants to make 3.1L of a 0.104M solution. How much KCl in grams should the chemist use?
asked by rachel 
help! physics
Right after clearing the launch tower, the space shuttle is accelerating upward at 6 m/s/s. Calculate the net force on an 80 kg astronaut during this acceleration and the force that the seat must exert on the astronaut during this acceleration.
asked by Lynn 
Calculus
A particle is moving along the curve y = 2 √{3 x + 7}. As the particle passes through the point (3, 8), its xcoordinate increases at a rate of 4 units per second. Find the rate of change of the distance from the particle to the origin at this instant.
asked by Carl 
Calculus
At noon, ship A is 10 nautical miles due west of ship B. Ship A is sailing west at 18 knots and ship B is sailing north at 22 knots. How fast (in knots) is the distance between the ships changing at 6 PM? (Note: 1 knot is a speed of 1 nautical mile per
asked by Sam 
math
Amy earns $0.16 per unit for the work she does. For all units she produces in a week over 1,000, she receives $0.26. What were her weekly earnings if she produced 1,725 units in one
asked by Anonymous 
English
Can you please check these sentences. I have to list the adverb then tell which word or words it modifies. 1.Yesterday I saw an exhibit of extremely rare books at the museum. 2.The paper in this old book is particularly fragile. 3.Old books must be handled
asked by Anonymous 
Physics  Spring
Suppose a 1.5kg block of wood is slid along a floor and it compresses a spring that is attached horizontally to a wall. The spring constant is 555N/m and the block of wood is traveling 9.0m/s when it hits the spring. Assume that the floor is frictionless
asked by Anonymous 
Probability
You type four letters to four different people and address the envelopes. If you then insert the letters into the envelopes randomly, what is the probability that exactly three letters will go into the correct envelopes?
asked by Sarah 
Math
A spider crawls at a speed of 1.17 miles per hour , at this rate how long will it take the spider to crawl 3/4 mile?
asked by shan 
accounting
mordica company will receive $100,000 in 7 years. If the appropriate interest rate is 10%, the present value of the $100,000 receipt is (A) $51,000 (B) $51,316 (c) $151,000 (D) $194,872
asked by Keisha 
english
An example of the frame story is _____. 1)"The Celebrated Jumping Frog of Calaveras County 2"The Lady, or the Tiger?" 3)"The Necklace" i think its number 1?
asked by danny 
chemistry
How many moles of NaI are produced with 3.27 moles BiI3?
asked by pat 
Ethical and Legal Issues
Let’s start this discussion by providing examples of an ethical duty or ethical obligations you have encountered in your life. What are some examples of rules at WORK that might cause a conflict with your ethical standards? 1. What was that duty or
asked by Anonymous 
world religions
Is there any website that can give me a summary of the first second third and the ninth teachings of the Bhagavad Gita? (Arjuna's dejection, Philosophy and spiritual discipline, and Discipline of action, and the Sublime Mystery) It would help a lot!
asked by y912f 
Phsyics
A bullet of mass 1.8 X 103 kg is moving at +500. m/s when it impacts a tree stump. It penetrates into the stump 6.00 centimeters before coming to rest. 1. Assuming the acceleration to be constant, calculate the force (including direction) exerted by the
asked by Rachel 
math
BLIND BATS AT HALLOWEEN There were number of bats in a cave. Two bats can see out of right eye, Three bats can see out of left eye, Four can't see out of left eye, and Five can't see out of right eye. What is the least number of bats in the cave & what
asked by Ben 
Physics
A twostage rocket moves in space at a constant velocity of 5100 m/s. The two stages are then separated by a small explosive charge placed between them. Immediately after the explosion the velocity of the 1250kg upper stage is 5520 m/s in the same
asked by Velocityof two stage rocket 
Physics
The first stage of a space vehicle consumed fuel and oxidizer at the rate of 1.60 multiplied by 104 kg/s, with an exhaust speed of 2.55 multiplied by 103 m/s. (a) Calculate the thrust produced by these engines. answer should be in N (b) Find the
asked by Force and Velocity 
Math
Does 'using the unit circle' just mean that I use these: In Quadrant I, theta=beta In Quadrant II, theta=180beta In Quadrant III, theta=180+beta In Quadrant IV, theta=360beta Because the whole lesson we did was about that sort of thing, which is all
asked by anonymous 
8th grade
Need help with inequalities and graphing them on a line graph!!!!
asked by Jayne 
Math
this number has 4 places to the right of the decimal point. It has 2 hundredths, 3 then thousandths, and 1 tenth. It is in between 240 and 242. The thousandths place is one less than the ten thousandths and less than the hundresths. What are six numbers
asked by Scarlett 
physics
In a game of basketball, a forward makes a bounce pass to the center. The ball is thrown with an initial speed of 3.9 m/s at an angle of 13.8° below the horizontal. It is released 0.65 m above the floor. What horizontal distance does the ball cover before
asked by alex 
physics
A water slide can be thought of as being frictionless. Let's say a slider starts from rest and goes down a slide that is 30 m long and is set at a 25 degree incline. a) Determine the speed of the slider at the bottom of the slide. b) Explain why you don't
asked by caroline 
physics
A tornado lifts a car to a height of 125m above the ground. The tornado flings the car horizontally with a speed of 90.0 m/s. How long does the car take to reach the ground?
asked by carmen 
Calculus
The burning candle A candle is placed a distance l1 from a thin block of wood of height H. The block is a distance l2 from a wall as shown in Figure 7.1. The candle burns down so that the height of the flame, h1 decreases at the rate of 3 cm/hr. Find the
asked by Fee 
Statistics
Machines are used to pack sugar into packets supposedly containing 1.20 kg each. On testing a large number of packets over a long period of time, it was found that the mean weight of the packets was 1.24 kg and the standard deviation was 0.04 Kg. A
asked by Shams 
Financial Management
You purchased WPC common shares for $50 on year ago. You have received total dividends equal to $8 during the year. If your total return during the period is 12%, then what was the price of WPC when you sold the stock today?
asked by Danielle 
physics
Ok. I'm writing that big test tomorrow, and I have no idea what should I do with this : An alien is 5m from an astronaut. The astronaut notices the alien and they simultaneously begin to run from each other with v[alien]= 2m/s and v[astronaut] = 4m/s. Find
asked by Anonymous 
Physics
Berry Bonds hits a baseball ball with an initial speed of 35m/s at an angle of 50 degrees with respect to the horizon. The playing field is surrounded by a 4.0m tall wall. Assume that when hit, the ball is initially very close to the ground. If the
asked by Gharib 
IPC
The latent heat of vaporization of ethanol is 200 calories/gram. This means that _____. a) about 200 calories of heat must be added to 1 gram of ethanol to change its temperature b) about 200 calories of heat must be added to 1 gram of ethanol to convert
asked by Jon 
math..probabilities
You type four letters to four different people and address the envelopes. If you then insert the letters into the envelopes randomly, what is the probability that exactly three letters will go into the correct envelopes? 1/2 1/3 1/4 0 Explain your answer.
asked by M.A. 
calculus
At noon, ship A is 20 nautical miles due west of ships B. Ship A is sailing west at 18 knots and ship B is sailing north at 20 knots. How fast (in knots) is the distance between the ships changing at 6 PM?
asked by Alexander M. 
physics
Two force vectors F1 = (2.5 N) x  (3.0 N) y and F2 =  (6.0 N) x + (4.8 N) y are applied to a particle. What third force F3 would make the net, or resultant, force on the particle zero? Magnitude ___ N Direction ___° (from the +x axis)
asked by rachel 
math
terri makes flower bouquets with exactly 3 roses and 5 daisies in each bouquet. she has 72 roses. how many daisies will she need to make the bouquets?
asked by lasean 
writing
Part II: Write one paragraph explaining the key differences between the four types of writing (summary, analysis, synthesis, and evaluation). Underline the topic sentence in the paragraph.
asked by Anonymous 
AP Physics
A stone is tied to a string (length = 0.450 m) and whirled in a circle at the same constant speed in two different ways. First, the circle is horizontal and the string is nearly parallel to the ground. Next, the circle is vertical. In the vertical case the
asked by AP Physics 
Science
Name 6 types of heat creating energy
asked by Syd 
chemistry
A reaction starts with 1.00 mol each of PCl3 and Cl2 in a 1.00L flask. When equilibrium is established at 250 degree Celsius in the reaction PCl3(g)+ Cl2(g)> PCl5(g), the amount of PCl5 present is 0.82 mol. What is Kc for this reaction?
asked by Shanice 
MATH HELP NOW
We are doing solving polynomials using the zero factor property and here is the question: Marie has a rectangular board 18 inches by 23 inches around which she wants to put a uniform border of shells. If she has enough shells for a border whose area is 282
asked by MARIAH 
physics
Right after clearing the launch tower, the space shuttle is accelerating upward at 6 m/s/s. Calculate the net force on an 80 kg astronaut during this acceleration and the force that the seat must exert on the astronaut during this acceleration.
asked by Lynn 
college Physics
A disk with a mass of 1300 g and radius 0.7 m has a block of mass 170 g hanging from it, as shown. The wheel and block start at rest. The moment that the block is released, what is the magnitude of the angular acceleration of the disk? (Note: the moment of
asked by Sam 
Chemistry
A firstorder reaction has rate constants of 4.6 x 10^2 inverse seconds and 8.1 x 10^2 inverse seconds at 0 degrees C and 20 degrees C respectively. what is the value of the activation energy? Please show all steps!! Thank You!
asked by Jim 
math
What models can be used to help explain the concepts of addition and subtraction of rational numbers? What are the benefits to using such a model? What limitations does the model have? Create an addition or subtraction problem and demonstrate how the model
asked by glenn 
physics
A rotating cylinder about 16 long and 6.2 in diameter what angular speed must it rotate?
asked by Anonymous 
Physics
You are very slowly pushing up an incline with a calculator sitting on it. The coefficient of static friction is 0.7. At what angle θ will the calculator start sliding?
asked by Alexis 
Calculus
If 3 x2+ 5 x + xy = 3 and y( 3 ) = −13, find y′( 3 ) by implicit differentiation.
asked by Correy 
Physics
A 10 kg ball moving due west at 2m/sec collides with a 4kg ball that is moving due east at 3 m/sec. You determine that immediately after the collision the 10 kg ball is moving due west at 0.57 m/sec. How do I set up the equations to find the answer?
asked by Christina 
Chemistry
What is the wavelength lambda of the photon that has been released in 2.05x10^18?
asked by Sarah 
Physics
An object is released from rest. How far does it fall during the third second of its fall?
asked by Jane 
Physics
In a friendly game of handball, you hit the ball essentially at ground level and send it toward the wall with a speed of 16 m/s at an angle of 32° above the horizontal. a) How long does it take for the ball to reach the wall if it is 5.2 m away? (b) How
asked by alex 
Algebra check+help?
For problems 1 and 2 write Y as a function of X 1) 12=9x+3y  I think you would subtract 9 from the 12.. but I'm not really sure because you can't add/subtract x's and y's from regular numbers. 2) 2x+3y=9 Same problem as above.. Can someone please explain
asked by Allyson 
physics
Hurricanes can involve winds in excess of 120 km/h at the outer edge. Make a crude estimate of the energy of such a hurricane, approximating it as a rigidly rotating uniform cylinder of air (density 1.3 kg*m^3 of radius 120 km and height 4.5 km. Make a
asked by Marisol 
trig
Find the values of the trigonmeric functions of t from the given information cos t = 4/5 terminal point of t is in quadrant III
asked by Christine 
Physics
I tried working this out and I got 495 which is wrong. im not sure what to do. A twostage rocket moves in space at a constant velocity of 4650 m/s. The two stages are then separated by a small explosive charge placed between them. Immediately after the
asked by Xavier 
Math (money)
How much money is in 350 nickles?
asked by Cameron 
science
In order for conduction to occur particles must make what?
asked by Zach 
Chemistry
A buret (initial and final buret reading were 2.20 mL and 11.86 mL) was used to deliver a sample of 2.1E5 M stock dye into a 25.0 mL volumetric flask. The dye was then diluted with water to exactly 25.0 mL. Calculate the molarity of the resulting
asked by Mallory 
9th grade math
you invest $1500 for three years.find the amount you earn at an annual rate of 8.25%
asked by me 
Calculus
Find the linear approximation L(x) of the given function at a, and use it to approximate the function value at the given xvalue. f(x)=x^(1/3), a=27, x=28 I found the derivative to be f'(x)= 1/[3(27)^(2/3)] but it does not exist because a number cannot
asked by sh 
3rd math
Jake says adding 0 does not change a number. Is he correct? explain
asked by choconcung 
Math
Find the requested value. f(4)for f(x)={6x, if x ¡Ü 1 f(4)for f(x)=x  2, if x > 1
asked by Ford 
College Critical Reading
Can someone please let me know if I am right on these True/ False questions. I like to make sure that I am understanding this information. Thanks in advance for your help ;) 1. Journalism has professional values of striving for subjectivity, currency,
asked by Jessie 
Algebra
Complete the following for f(x)=2^(x+1)3 Range: Coordinates of yintercept:
asked by Roger 
english
"All the world is a stage, but the play is badly cast." its a simile write? or is that a metaphor??
asked by danny 
6th grade
What does the sinai peninsula connect?
asked by Chelsea 
Chemistry
Need help with this 36. Balance this equation using coefficients. Fe + O2 > FeO (the 2 is small) Thanks MC
asked by mysterychicken 
US History
9. How did Woodrow Wilson's reform platform during the 1912 campaign differ from that of Theodore Roosevelt? a. Wilson supported federal regulation of business b. Wilson promised to preserve free economic competition c. Wilson supported tariff reduction d.
asked by mysterychicken 
Science
Working on the Amazon River, a biologist isolated DNA from two unknown organisms, P and Q. He discovered that the adenine content of P was 15% and the cytosine content of Q was 42%. This means that: a) the amount of guanine in P is 15% b) the amount of
asked by May 
ap history
On a chart what are the arguments for and against American expansion to the Pacific even at the expense of the war with Mexico in the 1840's
asked by bwjr 
Physical Science
an airplane is flying at 600km/h at an altitude of 2.0km. When the sound of the airplane's engines seems to someone on the ground to be coming from directly overhead, how far away is she from being directly below the airplane?
asked by Jason 
math
Need help with factoring this problem. Just want to make sure I followed the right steps. X^32X^2X+2 there are four terms so i used grouping method X^2(X2)(1)(X2) (X2) (X^21) (X2) (X1) (X+1) Correct?
asked by lomas 
physics
An ant walks on a piece of graph paper straight along the x axis a distance of 10.0 cm in 2.20 s. It then turns left 30.0 degrees and walks in a straight line another 10.0 cm in 1.90 s. Finally, it turns another 70.0 degrees to the left and walks another
asked by bobjang 
math
A vehicle leaves a skid mark of 40 ft before stopping. What has the approximate speed of the vehicle before it stopped? (the formula is speed=.7 times length, then find the square root times 5.5) Is is 2535 mph?
asked by Summer 
Chemistry
1. Reactions follow the law of conservation mass. T? 3. In a chemical equation, the material to the left of the arrow equals the material on the right. T 8. In a single replacement reaction, sodium (Na) doesn't replace hydrogen. F? 16. Increased
asked by mysterychicken 
Chemistry
A firstorder reaction has rate constants of 4.6 x 10^2 inverse seconds and 8.1 x 10^2 inverse seconds at 0 degrees C and 20 degrees C respectively. what is the value of the activation energy? Please show all steps!!
asked by Jim 
college chemistry
Calculate the [CH3NH3+] of a 7.02×103 M solution of the weak base CH3NH2 (make an approximate calculation assuming that initial concentration is equal to the equilibrium concentration). Round your answer to 3 significant digits. CH3NH2 + H2O = CH3NH3+ +
asked by sparkle 
Science
if the large piston of a hydraulic press has an area of 60"(squared), what will be the total force upon it if a pressure of 15 psi is produced by the small piston?
asked by Lisa 
math
a package of 6 stickers costs $1.50. Which equation can be used to find t, the total cost to give a sticker to 300 childeren? A. t = 9 x 300 B. t = 0.25 x 300 C. t = 0.25 x 50 D. t = 9 x 50 ?
asked by Anonymous 
Calculus
Gravel is being dumped from a conveyor belt at a rate of 50 cubic feet per minute. It forms a pile in the shape of a right circular cone whose base diameter and height are always equal to each other. How fast is the height of the pile increasing when the
asked by Carl 
Chemistry
37. Write a balanced equation for this: Magnesium + Chlorine > Magnesium Chloride Is it Mg + C12 > MgC12 ? Thanks MC
asked by mysterychicken 
biology
which region produce the most fish A the Indian ocean B the Atlantic ocean C the pacific D the Atlantic an Indian ocean e none above
asked by Anonymous 
Western Experience : Since the sixteenth century
How did imperialism impact nonwestern economies? How did Europeans achieve these transformations of local economies? What were the effects of those transformations?
asked by Kim 
physics
A woman has a mass of 42.9 kg. What is her weight on earth? and what is her weight on the moon, where g=1.17 m/s2
asked by Jason 
physics
A 4111.0 kg truck is parked on a 14.6° slope. What is the friction force on the truck?
asked by Jason 
Phsyics  QUICK QUESTION
what is the the effect on acceleration of increasing the mass of the cart without increasing the force that is causing the acceleration
asked by gary 
economics
suppose pam owns her own building in chicago, which she could rent for 200000 a year, and used to make 60000 a year managing a bed, bath, and beyond store. she decides to open a surfing store. her yearly sales are 500000, she pays her 2 sales workers 20000
asked by Rebecca 
spanish
can someone proof my essay
asked by Dedee 
geometry
How do I find the length of the segment AB when A(4,6) and B(3,5)
asked by Alex 
ScienceOrganelle
What is the structure of chromatin?
asked by Nancy 
2nd grade
I'm a number using only 5 base ten blocks between 150 and 250, and the number in the tens place is half the number in the ones place
asked by Kelli 
chem
Excess Ag+ is added to 50 mL of NaBr soln and precipitated out 22.8 mg of AgBr. What is the original concentration of Br ion in the solution in ppm?
asked by janie 
physics
A cart starts from position one with a velocity of 17.0 m/s. Find the speed of the cart at positions 2 and 3 ignoring friction. will the cart reach position four? position 2= 12.0 m high position 3= 2.0 m high 4= 20.m high
asked by Ali 
Math
how to use prime factorization using Square Root??? Examples Plzz like 3 examples
asked by Sumaiya 
accounting
Pearson corporation makes an investment today (January 1, 2010). They will receive $10,000 every December 31st for the next six years (20102015) If pearson wants to earn 12% on the investment, what is the most they should invest on January 1, 2010? A)
asked by Keisha 
Math
There are 1760 yards in a mile. A certain wheel makes 17600 revolutions in 40 miles. What is the number of yards in the radius of the wheel?Give the answer as a decimal to the nearest tenth of a yard.
asked by Cindy 
US History
3. Many senators opposed American entry into the League of Nations because a. they feared it would weaken the country's independence b. they disapproved of its other member countries c. they wanted stronger promises of support from other countries d. they
asked by mysterychicken 
math
rationalize 3/7root3 would it be 21+3root3/46
asked by peter 
Statistics
In a random sample of 50, the average is 3987 with a population standard deviation of 630. How can one find the 90% confidence interval of the true mean?
asked by Tony 
Chemistry
27. Amorphous solids have crystal structures. F? 32. Pure, crystalline solids freeze and melt at the same temperature. F 34. Water expands as it freezes. T Thanks MC
asked by mysterychicken 
9th grade math
suppose u invested some money at 8% simple interest for five years. if u received $500 in interest, how much money did u invest?
asked by me 
physics
if a bus fell off a cliff at a speed of 27m/s & the cliff is 70m high how far from the bottom do they land?
asked by kayla 
calculus
This is from our problem set. f(x)= 2(x^3)3(x^2)12x+20 write an equation of the line perpendicular to the graph of f at x=0 I think i'm supposed to take the derivate of f and then find the slope of the tangent line at x=0. Then take the opposite
asked by Divya 
physics
the force stretching the D string on a certain guitar is 150 N. the String's linear mass density is .005 Kg/m. What is the speed of waves on the string?
asked by bks 
math
thanks reiny for the help but can u tell me the domain of f g and fog in binary form? thanks
asked by mary 
Chemistry
37. Write a balanced equation for this: Magnesium + Chlorine > Magnesium Chloride 40. How many torr equal 760 mm Hg? Please explain how to do these. Thanks MC
asked by mysterychicken 
Physics
You are very slowly pushing up an incline with a calculator sitting on it. The coefficient of static friction is 0.7. At what angle θ will the calculator start sliding?
asked by Alexis 
physics
Two force vectors F1 = (2.5 N) x  (3.0 N) y and F2 =  (6.0 N) x + (4.8 N) y are applied to a particle. What third force F3 would make the net, or resultant, force on the particle zero? Magnitude ___ N Direction ___° (from the +x axis)
asked by rachel 
physics
Two race cars are speeding around the racetrack at different speeds. One goes around the track in 2 minutes; the other goes around the track in 1½ minutes. How often does the faster car pass the slower car? Is there a formula to figure this out?
asked by Mike 
US History
25. What happened to national attitudes and government policy to cause a dramatic change in immigration from 19211926? Thanks MC
asked by mysterychicken 
6th grade
Can you simplify 9 over 16?
asked by Alexandra 
5 th math
sorry, i was to sleepy my type got mess up. my question is if 8 counters are one whole, then what is half? if 9 counters are one whole, then what is one/third? please help my last one. !!
asked by pat 
math
Find all real and Imaginary solutions 7x^(3)+70x^(2)x10=0
asked by Samantha 
english
Criticism is always uncomplimentary. true?
asked by danny 
algebra
the three angles of a triangle are 3x,x+10, and 2x40. Find the size of the smallest angle in a triangle
asked by miles 
6th grade social studies
What do the arabian and anatolia or anotolian peninsula connect?
asked by Chelsea 
social studies
what is the hemispheres of Nebraska/
asked by Anonymous 
math
You type four letters to four different people and address the envelopes. If you then insert the letters into the envelopes randomly, what is the probability that exactly three letters will go into the correct envelopes? 1/2 1/3 1/4 0 Explain your answer.
asked by M.A. 
Algebra 1
x^26x(36x)
asked by Samantha 
Chemistry 106
What are the elements used to make the ingrediants of each category (the same element may be listed in several categories, but a maximum of once in each of the 6 categories, no matter how many different ingrediants it may be in)? **name of the element with
asked by samantha 
8th grade
how do you solve c=3d27 ; 4d+10c=120
asked by wendy 
sentences with all kinds of errors
Recent economic concerns prompted President Obama to meet with credit card industry executives in April 2009. The national credit card delinquency rate has continued to grow in recent times, and the president, along with Congress, aims to end unfair fees
asked by Anonymous 
math
Question: A student took a test composed of 20 question, with correct answers worth 2 points. If the student received 34 points for his grade, how many questions were correct? I KNOW THE ANSWER IS 17 BUT PLEASE PUT IN AN EQUATION FORM ex: (20x2)34 =
asked by paully 
Physics  Eqilibrium position of a springball
A 275g ball is resting on top of the spring that is mounted on the floor. You exert a force of 325N on the ball and it compresses the spring 44.5cm. If you release the ball from the position, how high above the equilibrium position of the springball
asked by Anonymous 
business
Tavarez Company assembled the following information in completing its July bank reconciliation: balance per bank $15,280; outstanding checks $3,100; deposits in transit $5,000; NSF check $320; bank service charge $100; cash balance per books $17,600. As a
asked by vivian 
math
Solve the two sided inequality and show the solution on real line 7 < 12x ≤ 10 Given two functions as: f(x) = x2x1 and g(x) = 3/x Find fog(x) also find the domain of f, g and fog
asked by mary 
Science
Name 6 types of heat creating energy
asked by Syd 
financial management
What role do present value and future value have in the management of an organization?
asked by Jerome 
Physics
You are very slowly pushing up an incline with a calculator sitting on it. The coefficient of static friction is 0.7. At what angle θ will the calculator start sliding?
asked by Alexis 
geometry b
in a circle,a 90 dagree sector has an area of 36 pie ft squared.what is the radius of the circle ???
asked by charles 
math
A company wants to make 16 equal payments for a new computer that cost $2,229.99 and for a fax machine that cost $109.99 including tax. What is a resonable estiamte for each payment?
asked by Anonymous 
algebra 1 b
The sides of a triangle have measures of x, x, and y, and the perimeter of the triangle is 46. The measure y is 4 centimeters longer than the measure x. Write the solution for this as an ordered pair.
asked by Daniel 
Chemistrybobpursley
37. Write a balanced equation for this: Magnesium + Chlorine > Magnesium Chloride Is it Mg + C12 > MgC12 ? Thanks MC
asked by mysterychicken 
Chem
The question is; About Fe+2 concentration will Fe(OH)2 precipitate from a buffer solution that has a PH = 9.29? The Ksp of Fe(OH)2 is 4.87x10^17 So here is what I did, Ksp = (x) (2x)^2 = 4x^3 4.87x10^17 = 4x^3 x = 2.30x10^6 I don't know what do I have
asked by Kim 
Chemistry
38. Identify the type of reaction. A + B > AB A + BC > AC + B Thanks MC
asked by mysterychicken 
physics
A 3.00 10^2 N force is pulling an 80.0 kg refrigerator across a horizontal surface. The force acts at an angle of 18.0° above the surface. The coefficient of kinetic friction is 0.200, and the refrigerator moves a distance of 8.00 m a) Find the work done
asked by Anonymous 
physics
How much work will a net force of 56·N west do on the cart as it moves 1·m?
asked by Anonymous 
physics
A 1.5 kg chunk of ice slides down a roof sloped at a 60 degree angle with the horizontal. If there is no friction, determine the acceleration of the ice. Show that the amount of mass doesn't matter in part a.
asked by caroline 
Chemistry
I made a graph and i used line of best fit. How do i find the slope of the line?
asked by Bianca 
reading
i need help my teacher give us adjective worksheet about spookley the square pumpking i need to write 6 adjective to describe spookley the square pumpkin. 1.little 2.square 3.kind 4.friendly 5.thankful 6.hopeful
asked by 3 grade 
Geography
How do you calculate Latitude and longitude precisely?
asked by olivia 
math
how you turn decimal to fraction or mixed number?
asked by nafina 
Science
the small cylinder of a hydraulic press has an area of 2"(squared). If a force of 10# is applied to the small piston, how much is the pressure within the larger cylinder increased, according to pascal's principle.
asked by Lisa 
physics
Please Help.... A car (mass = 1170 kg) is traveling at 43 m/s when it collides headon with a sport utility vehicle (mass = 2460 kg) traveling in the opposite direction. In the collision, the two vehicles come to a halt. At what speed was the sport utility
asked by baily 
Science
assume the pressure is kept constant if the volume of a gas quadruples, how does the absolute temperature change?
asked by Lisa 
chemistry
a copper block has a mass off 80 grames and occupies a volume of 9.5cm3 calculate its density
asked by alex 
Government
Im sorry for asking another question but is their a website where i can find what provisions in the constitution ensure that each of these purposes is achieved? form a more perfect union establish justice insure domestic tranquility provide for the
asked by Cheryl 
Chem
A 11.9g sample of a gas has a volume of 5.25L at 30 degrees celsius and 762mm Hg. If 2.4g of the same gas is added to this constant 5.25L volume and the temperature raised to 64 degrees celsius, what is the new gas pressure?
asked by Lisa 
Calculus
When air expands adiabatically (without gaining or losing heat), its pressure and volume are related by the equation where is a constant. Suppose that at a certain instant the volume is cubic centimeters and the pressure is kPa and is decreasing at a rate
asked by Jason 
business
an example of PEST analysis please
asked by katy 
social studies
What did the Gadsden Purchase have on American democracy?
asked by Rashawnda 
social studies
How did the aquisition of the Oregon Country affect American Democracy?
asked by Lleyenna 
statistics
a survey from a research firm found that 30% of teenage consumers receive their spending money from parttime job.if five teenagers are selected at random,find the probability that only three of them will have parttime jobs.
asked by kimasni 
geometry
Given the right triangle JKL, whose arean is 32 sqare units, determine if it is an isoceles right triangle.
asked by Nina 
math
Simplify, then apply the rules of limit to evaluate lim x35x2+6x/x29 x>3
asked by mary 
Physics  Charges on objects (check + help)
Two identical objects have charges from +6.0*10^6 and 2.0*10^6, respectively. When placed a distance d apart, their force of attraction is 2,0N. If the objects are touched together, then they moved to a distance of separation of 2d, what will be the new
asked by Anonymous 
math
I am a fraction equivalent to 2/4.The sum of my numerator and my denominator is 21. what fraction am I?
asked by dyland 
math
5/11+root5 How would I rationalize this I think it would be  Multiply both sides by 11root5 then use the foil method on the denominator to give you 555root5/121+5root115root115 the 2 roots would cancel out giving you 555root5/125 so would the answer
asked by peter 
Algebra
One can think of "a out of b" without actually removing the pieces. For example, one might think of the fraction of Xs in the diagram X X O O O as "two Xs out of five objects," in which case 2/5 of the objects are Xs. Can you apply this way of thinking to
asked by Maria 
Biology
Hi, I am doing my lab assignment about Protein Analysis. Our job is to find the concentration of the casein protein in our original Unknown sample with the initial volume of 2ml. So after plotting the graph of the data given, we are supposed to find the
asked by Sarah 
4th grade
what is the longest multiplication combination for 120
asked by cesilia 
Geometry
How would you solve v=PIr2h? Solve for h? I have no clue how to do this.. Please help thanks Allyson
asked by Allyson 
math
find the n. 4 x n = 9 + 3. what do i do?
asked by cameron 
Chem
In an automobile engine, at the end of the upstroke the piston is at its maximum height in a cylinder of exact dimensions. At this time, a precisely measured mixture of fuel and oxidant ignites to form gaseous products. If the ignition temperature is
asked by Kay 
project management
"The psychological contract between an individual and the organization for which they work is a complex one, but is basically a process of reciprocation". Discuss the above statement and explain how the type of psychological contract offered by the Project
asked by mhiar 
Accounting
Milner company will invest $200,000 today. The investment will earn 6% for 5 yearswith no funds withdrawn. In 5 years, the amount in the investment fund is A) $200,000 B) $260,000 C) 267,646 D) $268,058
asked by Keisha 
maths
A bond with face value of $500 redeemable at par in 13 years time, is paying interest at j2 = 9.0%. Find the purchase price of the bond to give a yield to maturity of j2 = 8.4%.
asked by k 
Chemistry
How would I find the moles of H+ if I have 2.0 M HCl and 2.0 M NaOH solution?
asked by Sara 
9th grade math
suppose you invested $1200 for four years. you earned $312 in simple interest. what is the interest rate?
asked by me 
business law
Case Study: Your longtime friend Carl comes to you with a serious problem in his life. He is a believer, and he wants your advice. For years he and his family have lived above their means. They did this by continually refinancing their house and rolling
asked by Nicole 
math
in december the average rainfall in all of the deserts is 0.89 mm.USE the figure from the table to write a comparison of average desert rainfall in august and december?
asked by wafi 
Math
Perform the requested operation or operations. f(x) = 4  4x, g(x) = 9x + 4 Find (f + g)(x).
asked by Ford 
physics
A plane can fly at Mach 1.47, which means the speed of the plane is 1.47 times the speed of sound in air. What is the angle between the direction of propagation of the shock wave and the direction of the plane's velocity? How is the answer 47.1 degrees
asked by flame 
chemistry
write a balanced net ionic equation fir the reactions that occurred with the metal Mg reacting with Pb2+
asked by josh sears 
physics
A certain freely failing object requires 1.70 s to travel the last 39.0 m before it hits the ground. From what height above the ground did it fall?
asked by Anonymous 
Biology
It is said that high temperatures inactivate catechol oxidase. How is it then that some Archaebacteria live in the hot springs of Yellowstone Park at temperatures as high as 73%.
asked by Sarah 
Physics
Skydiver Joseph Kittinger, record for the longest jump, reaches a terminal speed of 60m/s with his arms and body fully extended. Then, he switches to a head first dive, reducing his cross section area by 80% (that is, his cross section area when headfirst
asked by Gharib 
5th grade
if 8 ciybters are ib wgike, then wgat us half? i f9 counters te one hole, then what is one /third ?
asked by pat 
bioethics
I need to create a political cartoon about clinical trials. I have no idea what to do. Any suggestions would be greatly appreciated.
asked by Meghan 
Management
o Differentiate between management and leadership. o Describe the roles and responsibilities that organizational managers and leaders play in creating and maintaining a healthy organizational culture. o Evaluate the affect of globalization and management
asked by Alida178 
college algebra
Use the theorem on bounds to establish the best integral bounds for the roots of the equation w^(4)8w^(3)+2w^(2)+10w1=0
asked by Alex 
IPC
The type of bond formed by shared electrons is ____. covaletn, right?
asked by Jon 
Business math
Determine the selling price of a 15year, 4.725% bond, with $1000 maturity value, with a yield of 4.735%. (Assume twiceyearly interest payments. Round your answer to the nearest cent.) PV = $ 1
asked by Liz c 
com156
What should you consider when looking for helpful sources? What are some red flags that indicate you should avoid a particular source?
asked by Anonymous 
IPC
copper and chlorine are likely to form a metallic bond, right?
asked by Jon 
science
Which of the following chemical reactions is written to show that mass is conserved? A H2O to H2+O2 B CH4+202 to CO2+2H2O C Mg+HCI to 3MgCI0+H2 D N2+H2 to NH
asked by Tiffany 
english
Part II: Write one paragraph explaining the key differences between the four types of writing (summary, analysis, synthesis, and evaluation). Underline the topic sentence in the paragraph.
asked by Anonymous 
math
a jetliner is crusing at an altitude of 31,680 ft. What is the altitude in miles? Show work by using demensional analysis.
asked by Anonymous 
English
1)Please advise us on the status of our application. 2)Please advise the status of our application. Which sentence is correct?
asked by ann 
algebra 1
help please this question is driving my crazy. Suppose there is a 2degree drop in a temperature for every thousand feet that an airplanes climbs into sky. If the temperature on the ground is 65 degrees, what would be the temperature when the plane reaches
asked by jazz 
math
Use common denominators to compare the pairs of rational numbers. In each of the following identify which one is greater and explain how you know. 5/7, 5/8
asked by m 
7th grade Science
What types of cells in your body are no longer undergoing mytosis?
asked by Selena 
English
Can you please check the following sentences? Thank you. 1) My mum is an employee. She works for a confectionary industry. 2) I like spending time on the net (better: I like surfing the net). I like playing on my PlayStation. I also like going out with my
asked by Franco 
5th grade social studies
Question: What time period or movement began in the textile industry? I am really confused about this questions. My answer was the time period of the 18th century. Is this correct? Question: What is an economic system based on machinery rather than animal
asked by Lina 
math
the width of a rectangle is one half its lengh. The perimeter of the rectangle is 54 cm. What are the width and length of the Rectangle?
asked by lee peacock 
Western Experience
in what ways did the alliance system, implemented to maintain a peaceful balance of power in Europe, in fact have the opposite effec?
asked by Kim 
Physics
An object of mass 1.25 kg on a flat surface has two forces acting on it, F1 and F2 in the horizantal direction. F1 acts in the positive direction, F2 acts in the negative direction. The magnitude of F1 is 26.75 N. The object moves strictly along the
asked by Lisa 
physics
An ant walks on a piece of graph paper straight along the x axis a distance of 10.0 cm in 2.20 s. It then turns left 30.0 degrees and walks in a straight line another 10.0 cm in 1.90 s. Finally, it turns another 70.0 degrees to the left and walks another
asked by bobjang 
Gen Chem 1
We want to change the volume of a fixed amount of gas from 745mL to 2.30L while holding the temperature constant. To what value must we change the pressure if the initial pressure is 102 kPa?
asked by Kay 
Money and Banking
One year ago, you bought a bond for $10,000. You received interest of $400 at the end of the year, as well as your $10,000 principal. If the inflation rate over the last year was five percent, calculate the real return.
asked by Jaye 
Physics
A small block of mass m1 = 0.400 kg is released from rest at the top of a curvedshaped frictionless wedge of mass m2 = 3.00 kg, which sits on a frictionless horizontal surface as in Figure P9.60a. When the block leaves the wedge, its velocity is measured
asked by Velocity and Height 
biology
The structures in bryophytes that penetrate the ground and act like roots are a. xylem b. phloem c. rhizomes d. rhizoids
asked by chip 
Chemistry (electron config)
Write electron configurations for the following ions. Tl^+ [Xe]4f^145d^8 is that correct?
asked by Don 
physics
What was the initial kinetic energy of the small mass before the collision? What is the kinetic energy of the twomass combination after the collision?
asked by Derek 
Algebra check+help?
Write the equation so that y is is a function of x. 1) 5x+4y=10 Would you minus the 5 from the 10 first? and 4y=510? Because she only wants us to write the equation, not exactly solve for it. And doesn't want us to overthink. Could I please have someones
asked by Allyson 
radius of circle circumcribed about traingle
find the radius of circle circumcribed about traingle has 3 known sides
asked by Anonymous 
math: calculus
Having a problem with this one... if f(x)=f, then find f(7)
asked by courtney 
science
a shell has an initial velocity of 450 feet per second, what is the maximum height the shell reaches?
asked by kayla 
4 th grade math input outout box
how do you get from 6 to 40
asked by joe 
math
2. Grace is m inches tall and Grant is n inches tall. What is the difference in their height expressed in feet?
asked by Anonymous 
math
Is it possible to have a triangle that the sum of the measures of the small and medium sides is equal to the measure of the large side?
asked by miranda 
math
find x x5/x2 = x9/x7 Method (x5)(x7) = (x9)(x2) x^212x+35 = x^211x18 I get stuck here help would be must appreciated
asked by peter 
English
satirical quotes from midnight's children and The God of Small Things
asked by Anu 
5th grade
175104000 is 7 10ths of population what is the population
asked by pat 
Math  derivative of f(x) (check)
f(x)  x/(x1) then f'(x) = 1/(x1)^2 is that correct?
asked by Anonymous 
5th grade word problem
a customer at a cider farm has a 5 gallon jug and ask the farmer to put in exactly 4 gallons. All the farmer has to measure out the gallons is a 3 gallon jug. In what way or ways could the farmer measure out exactly 4 gallons using just these two
asked by tryston 
Math Algebra
3/2x+3  5/x7 + x^2x/2x^211x21
asked by Rebecca 
english writing
how would you say "as a result" in other words? Im writing a report and I cant repeat all the time as a result of the meeting...
asked by Viola 
Math
Predictable Corp has increased its annual dividend each year of its life by 2% (and will continue to do so indefinitely). If Predictable paidits annual dividend yesterday of $8 and the required return is currently 4%, then by what amount will the stock
asked by Danielle 
spanish
Hoy en dia pavos SON perdonados en caso de que el pavo no este disponible para el perdón presipdencial. Is SON correct in this sentence and if it is, why?
asked by Sue 
precal
find all values of x such that sin(sin(x))=1
asked by george 
math
3^2 is my sample but it says explain their funcutions for eachother. what exactly does it mean. can you give me a function for my problem.
asked by kayla 
MATHSTUCK
Express each power as an equivalent radical. K. I don't know how to write this, but I'll explain. There is a fraction. 1 over 9. And 9 has a power up to it which is 5 and a power down which is 3. I don't get how to express this power as an equivalent
asked by Anonymous 
Biology 101
Summarize the inheritance of sexlinked traits through meiosis and how it relates to genetics.
asked by Anita fields 
5th grade
if angele O is 31 degree and angle T is 121 degree and what is angle A will be ______?
asked by pat 
Accounnting
Vannoy Corporation will invest $25,000 every January 1st for the six years (20102015). If Wagner will earn 12% on the investment, what amount will be in the investment on December 31, 2015? A) $102,785 B)$115,120 C) $202,880 D) $227,225
asked by Keisha 
math
I'm thinking of a number made from the digits 3,6 and 9. Each digit is used only once. My number is an even number. My number is greater than 400. What is my number?
asked by selena 
3rd math
9 + 3 = ? + 9
asked by choconcung 
math
how do we deal with ratio give some example
asked by khizra feroz 
Statistics
In a sample of 171, the mean is 58 with a population standard deviation of 4.8. Can someone help me figure out what is the 90% confidence interval of the true mean? Thank you.
asked by Diandra 
math
how to solve 3[x( 1/3+2iã14/3)][x(1/32iã14/3)]
asked by dona 
sentences with all kinds of errors
Recent economic concerns prompted President Obama to meet with credit card industry executives in April 2009. The national credit card delinquency rate has continued to grow in recent times, and the president, along with Congress, aims to end unfair fees
asked by Anonymous 
MATH
Find the product 3[x( 1/3+2iã14/3)][x(1/32iã14/3)]
asked by dona 
business
Internal controls are concerned with?
asked by vivian 
geometry
At the beginning of a run on a road that goes due north, Hayden noticed that she was 4 kilometers south of a dead douglas fir. If the midpoint of her jog was 7 kilometers north of the dead douglas fir, how far did Hayden have to travel? thanks :]
asked by Serenity 
math
domain of f: any real number domain of g: any real number except x is not equal to zero domain of fog: any real number except x is not equal to zero please explain the domain in binary form. thanks.
asked by mary 
English
Need help with topic "Justice" Need 2 question: is what is the moral aspect of Justice? Research plan: Have investigate my question. I am kind stuck on this topic, please help me to write 3 pages. Thanks.
asked by Kate 
Math
explain how you could show five less than a number using an expression?
asked by Daisy 
College algebra
Find the equation with xintercepts (4,0),(3,0) and (2,0) and yintercept (0,12)
asked by samantha 
health
compare and contrast contributory negligence with comparative neglience.
asked by aslyn 
Math
Perform the requested operation or operations. f(x) = 2x  9, g(x) = 4x  4 Find (f  g)(x).
asked by Ford 
social studies
A likely question (or request for information) that you'd probably hear during a behavioral interview would be: "Describe your worst behavioral traits." "Describe your best behavioral traits." "Explain to me how you handled a customer emergency." "What
asked by dina 
College Critical Reading
If someone could please let me know if these multiple choice questions are right? I believe they are but I want to make sure! Thanks for the help in advance! 1. Critical readers watch television by deciding that their primary purpose for choosing shows is
asked by Jessie 
health care finance
Assume a forprofit health system has $1 million in taxable income for 2007, and its tax rate is 30 percent. What is the firms net income?
asked by Meme 
Algebra
What is the inverse of the function y=3x
asked by Roger 
Management
o Differentiate between management and leadershipwithinKraft Foods Ijustneedsome links to goto to find info where Ican do a 2,100 word essay
asked by Alida178 
geometry
Is it possible to have a triangle that the sum of the measures of the small and medium sides is equal to the measures of the larger?
asked by miranda 
Earth/Environmental Science
"Tsunamis" are giant waves caused bhy earthquakes under the ocean floor. They _______ islands and coastlines. What does tsunamis do to islands and coastlines?
asked by Anonymous 
3rd math
reasoning does 4+5 2 9+2 explain please help! Thanks :)
asked by choconcung 
math
Use Descarte's rule of signs to discuss the possibilities for the roots of the equation. Do not solve the equation 5r^(4)+6r^(3)+9r15=0
asked by Allie 
3rd grade math
explain how you can use the basic fACT FOR 9+6=15 TO SOLVE THE NEXT EQUATION
asked by samantha 
math
x(x3)+4= 3x^2  2(x+8) Divided by 3
asked by annonomus 
Chemistry
I realllyy need help with this: 39. Find the formula mass for AI2S3. Show your work. (The 2 and 3 are small) Thanks MC
asked by mysterychicken 
math
mrs.fuchs has 40yd of fencing to use to make a rectangular area for her garden.(she wants to keep the animals out!!!!) she pans to use part of the 26yd wall of her house as one of the sides of the rectangular area.  what whole dimension( lengh and width)
asked by Katherine 
Chemistry
When 0.578 L of Ar at 1.20 atm and 227°C is mixed with 0.299 L of O2 at 501 torr and 127°C in a 400. mL flask at 27°C, what is the pressure in the flask?
asked by Corshaney 
MATH
what is the fact of 2x^2+34x141
asked by Mariah 
Finance
The Star Restaurant Company owns and operates Chinese restaurants throughout the northwestern United States. Paris Brown, vice president of development, has been analyzing a new metropolitan market for expansion opportunities. The company’s best option
asked by Jim 
English
The liquid should be scooped at a quarter depth. or The liquid should be scooped at a quarter depths. Which is correct?
asked by ann 
Chemistry
why is flame test for chemicals important? give me reasons
asked by King Wah 
math
mrs.fuchs has 40yd of fencing to use to make a rectangular area for her garden.(she wants to keep the animals out!!!!) she pans to use part of the 26yd wall of her house as one of the sides of the rectangular area.  what whole dimension( lengh and width)
asked by Katherine 
english
"All the world is a stage, and all the men and women merely players." metaphor?
asked by danny 
3rd math
Reasoning does (4+5)+2 = 9+2? Explain Thanks
asked by choconcung 
Chemistry
Write balanced equations for the following reactions. Express your answer as a chemical equation. Identify all of the phases in your answer. 1. chromium (III) oxide with dilute hydrochloric acid A: Cr2O3 (s) + 6HCl (aq) > 2CrCl3 (s) + 3H20(l) (my phases
asked by Don 
math
(2x^3)2 3
asked by Chan 
Math
x(x3)+4= 3x^2  2(x+8) 3
asked by Chan 
math
15=  3 3/16 m
asked by Anonymous 
college
the perimeter of a rectangular garden is 25.6m and the area is 36.12msquare. find the length and width of the garden
asked by barb 
probability
Suppose that the probability is 1 in 3,900,000 that a single auto trip in the United States will result in the death of the driver. Over a lifetime, an average U.S. driver takes 50,000 trips. Assume that events are independent: (a) What is the probability
asked by Laura 
adult education
IS IT POSSIBLE FOR COMPANIES BOTH TO MAXIMIZE FINANCIAL VALUE FOR SHAREHOLDERS AND TO ACT IRRESPONSIBLY IN THE COMMUNITIES IN WHICH THEY OPERATE,TO TREAT THEIR EMPLOYEES,CUSTOMERS,AND SUPPLIES WELL, AND TO ENGAGE IN ACTIVITIES THAT ARE GOOD FOR THE
asked by EBONY 
math
find each quotient. 3/4 divided by 12
asked by m 
math
How do I take the derivative in respect to c1 for the following utility function? u1 = log(c1) + log [1/2(xc1c2)] details please
asked by david 
English
Comparison of the Satirical quality in the novels of Rushdie and Roy
asked by Anu 
Math
Howto use perfect square inside of a imperfect square when finding the square root.?
asked by Sumaiya 
math
please go step by step to better understand if x,y,z are three different real numbers with y/xz=x+y/z=x/y, evaluate x/y
asked by jon 
Math
please go step by step to better understand if 2f(x)+f(1x)=x^2 for all real numbers, the f(x)=?
asked by jon 
math
Our teacher gaves us a rational graph and we are supposed to determine its equation, there is more than one answer. So the aymptotes are vertical= x=5 and x=2 horizontal asymptote= y=2 then there is a cubic function that crosses the xaxis at 2,0 and the
asked by dani. 
chemistry
Why did i get this question wrong? its about a u shaped tube with a simepermeable membrane 0.3 M Fe (NO3)2 0.5 M sugar 0.1 M NaCl So I did this: 0.3 x3 = 0.9 0.5x1=0.5 0.1x2=0.2 = 0.7 so i chose the answer increase in the water level to the left side of
asked by Ben 
English
With reference to an earlier question: The liquid is to be scooped at a quarter of the depth of the container it is in. Hence the first sentence is correct? Or is there a better way of phrasing? The liquid should be scooped at a quarter depth of the
asked by ann 
math
A company wants to make 16 equal payments for a new computer that cost $2,229.99 and for a fax machine that cost $109.99 including tax. What is a resonable estiamte for each payment?
asked by Anonymous 
3rd homework
think about how the word safe relates to dangerous. what words relate in the same way? safe: dangerous a) remove:add b) canyon:rim c) dangle:plank d) grip:jackhammer I am thinking "A" is the correct answer but unsure. Please advise. Thanks!
asked by choconcung 
math
triangle with vertices A(2,2), B(4,0) and C(2,3). find the length of this altitude
asked by Ted 
6th grade
What are the two similar features for long shore current and rip currents?
asked by andrew 
English
When I type President Bill Clinton in a sentence does president need to be capitalized?
asked by Kayla 
biochemistry
all three sugars have the formula C6H12O6. what does this reduce to
asked by brianna 
ap calculus bc
Hi! Thank you very much! My question is: how do you find the antiderivative of 1 / (square root[1(x^2)]) aka antideriv( [1/(x^2)] ^ 1) THank you!!
asked by APpreciate student 
chemistry
a little help please? Anyone? can someone explain to me the trend in radii of O2, F, Na+, and Mg+
asked by Marie 
health
how you do a salgry?
asked by nafina 
business
A PEST analysis of a company... answer please
asked by katy 
english
the main character in a story is the antagonist? True?
asked by danny 
us history115
in waht ways did democracy create a new political culture? how did democracy impact social change?
asked by angela 
economics
1. Consider the following four debt securities, which are identical in every characteristic except as noted: W: A corporate bond rated AAA X: A corporate bond rate BBB Y: A corporate bond rated AAA with a shorter time to maturity than bonds W and X Z: A
asked by Jaye 
math
if the bases are not the same or the exponents why would it not work?
asked by kayla 
Government
I have a journal activity i have to turn in asap, is their any websites were i could find the reasoning why the 'framers' of the Constitution put in these purposes of the government? form a more perfect union establish justice insure domestic
asked by Cheryl 
Science
PLEASE HELP Science Test Friday Study Guide? I have 1 to 22 already but I am stuck now I have to have this completed and correctly for my study guide. I have a C right now I need an A on this test to bring it up to a B or I stay on restriction please help
asked by Jennifer 
math
2=sq root of 2U+7  sq root of U
asked by Jim 
Science
if a pressure of 10 psi on a volume of 5"^3 is reduced to 2 psi, by what factor does the pressure change?
asked by Loren 
Chemistry
How is the solubility of a solid affected by temperature?
asked by Molly 
english
Please help with this assignment!Thanks. I picked "Justice" I want to write about What is the moral aspect of Justice. Tell how can I write like the following below. Have to write like this and don't know how to go about it.Thanks! Definition Read the
asked by Kate