Questions Asked on
November 22, 2010

Physics
The blades in a blender rotate at a rate of 6500 rpm. When the motor is turned off during operation, the blades slow to rest in 2.6 s. 1. What is the angular acceleration as the blades slow down?
asked by Nick 
Physics
A laser beam is directed at the Moon, 380,000 km from Earth. The beam diverges at an angle of 4.6×10−5 rad. 1. What diameter spot will it make on the Moon?
asked by Nick 
Calculus
A water tank has a shape of an inverted circular cone with base radius 3 m and height of 5 m. If the water is being pumped into the tank at a rate of 2 m^3 /min, find the rate at which the water level is rising when the water is 3 m deep.
asked by Jay 
Math
In traveling across flat land, you notice a mountain in front of you. Its angle of elevation to the peak is 3.5 degrees. After you drive 13 miles closer to the mountain, the angle of elevation is 9 degrees. Approximate the height of the mountain.
asked by Ashley 
Physics
A uniform piece of wire, 30 cm long, is bent in the center to give it an Lshape. How far from the bend is the center of mass? I know that the center of mass is ([m1]x+[m2]x)/([m1]+m2]), but I don't quite understand how to apply it to this problem.
asked by Avalon 
Chemistry.
Ca(HCO3)2(s) decomposes at elevated temperatures according to the stoichiometric equation Ca(HCO3)2(s)> CaCO3(s) + H2O(g) + CO2(g) a.) If pure Ca(HCO3)2(s) is put into a sealed vessel, the air is pumped out, and the vessel and its contents are heated, the
asked by Jill 
Microeconomics
Pharmaceutical drugs have an inelastic demand, and computers have an elastic demand. Suppose that technological advance doubles the supply of both products (that is, the quantity supplied at each price is twice what it was).
asked by Rob 
chemistry
The solubility of lead (II) chloride (PbCl2) is 1.6 x 10^2 M. What is the Ksp of PbCl2?
asked by jack 
physics
A 66.0 kg man is iceskating due north with a velocity of 5.70 m/s when he collides with a 36.0 kg child. The man and child stay together hand have a velocity of 2.20 m/s at an angle of 33.0° north of east immediately after the collision. What was the
asked by Please Help! 
algebra
Find the radius of a circle with an area of pi(16x^2+24x+9)
asked by Kristina 
Statistics
A research group conducted an extensive survey of 3078 wage and salaried workers on issues ranging from relationships with their bosses to household chores. The data were gathered through hourlong telephone interviews with a nationally representative
asked by Anonymous 
chemistry
A 0.446 g sample of an unknown monoprotic acid was titrated with 0.105 M KOH. the molar mass is 120 g/mol What is the pKa value?
asked by james 
chemistry
Compute the boiling point of this Solution: 25.5g C7H11NO7S (4nitro2toluenesulfonoic acid dihydrate) in 1.00*10^2g H2O (nonionizing solute) The freezing point of H2O is lowered 1.86 Celsius per mole of solute. The boiling pint os H2O is raised 0.512
asked by Jose Reyes 
physics
A 1.3 block of ice is initially at a temperature of 3.5. If 6.6×105 of heat are added to the ice, what is the final temperature of the system? Find the amount of ice, if any, that remains. Suppose the amount of heat added to the ice block is doubled. By
asked by katelyn 
Math
A goat is tethered to a stake in the ground with a 5 m rope. The goat can graze to the full length of the rope a fulll 360 around the stake. How much area does the goat have in which to graze? What would be the figure?
asked by Ashley 
Chemistry
Compute the boiling point of this solution: 1.00*10^2g C10H8O6S2 (1,5naphthalenedisulfonic acid) in 1.00*10^2g H2O (nonionizing solute) The freezing point of H2O is Lowered 1.86 Celsius per mole of solute. The boiling point of H2O is Raised 0.512 Celsius
asked by Jose Reyes 
ap chemistry
A volume of 2.0 L of He at 46 degrees celsius and 1.2 atm of pressure was added to a vessel that contained 4.5 L of N2 at STP. What is the total pressure and partial pressure of each gas at STP after the He is added?
asked by garm 
Microeconomics (full version)
Pharmaceutical drugs have an inelastic demand, and computers have an elastic demand. Suppose that technological advance doubles the supply of both products (that is, the quantity supplied at each price is twice what it was). a. What happens to the
asked by Rob 
Chemistry
3.13g if CuNO3 is dissolved in water to make a 0.270 M solution. What is the volume of the solution?
asked by Jason 
chemistry
Compute the freezing point of this Solution: 25.5g C7H11NO7S (4nitro2toluenesulfonoic acid dihydrate) in 1.00*10^2g H2O (nonionizing solute) The freezing point of H2O is lowered 1.86 Celsius per mole of solute. The boiling point of H2O is raised 0.512
asked by Jose Reyes 
chemistry
A mixture of 2.0 mol H2 and 1.0 mol of O2 is placed in a sealed evacuated container made of a perfect insulating material at 28C. The mixture is ignited with a spark and it reacts to form liquid water. What is the final temperature of the water
asked by John 
chemistry
What mass of aluminum metal can be produced per hour in the electrolysis of a molten aluminum salt by a current of 24 amps? All i need is the moles of Aluminum per moles of electons. thanks
asked by moe 
geography
Paraguay is to Bolivia as ? is to Honduras. My answer is Nicaragua. Is that correct? I say it is Nicaragua because Bolivia is southeast of Paraguay and Honduras is southeast of Nicaragua.
asked by Reed 
physical science
a 2.0 kg rock sits on the edge of a cliff 12m above the beach. The rock falls off the cliff. How much kinetic energy will it have just before it hits the beach?
asked by Brad 
chemistry
How many grams of NH3 form when 27.5L of H2 (measured at STP)react with N2 to form NH3 according to: N2(g) + 3H2 (g) = 2NH3 (g)
asked by Susan 
physics
A man is pulling on a rope with a force of 53 N directed at an angle of 70◦ to the horizontal. What is the xcomponent of this force? Answer in units of N.
asked by jane 
physics
two crates, of mass 75 kg and 113 kg, are in contact and at rest on a horizontal surface. A 727 N force is exerted on the 75 kg crate. If the coefficient of kinetic friction is 0.15, calculate the following: a)the acceleration of the system b) the force
asked by Haley 
Algebra
Determine if the equation y = 2^x represents exponential growth or decay I thought at first it was growth but now I think it might be decay because there is no "b" in a parentheses so do I assume b is less than 1 so it's decay? Please help
asked by Jason 
Chemistry
At a certain temperature, the pH of a neutral solution is 7.77. What is the value of Kw at that temperature?
asked by Pete 
Chemistry
Calculate the molecular mass of the nonionic solutes. 8.02 grams of solute in 861 grams of water lower the freezing point to 0.430 celsius. the freezing point of H2O is lowered 1.86 celsius per mole of solute. the boiling point of H2O is raised 0.512
asked by Jose Reyes 
Physics
An anvil hanging vertically from a long rope in a barn is pulled to the side and raised like a pendulum 1.6 m above its equilibrium position. It then swings to its lowermost point where the rope is cut by a sharp blade. The anvil then has a horizontal
asked by Scooby 
College Chemistry
A hydrogenlike ion is an ion containing only one electron. The energy of the electron in a hydrogenlike ion is given by: En=(2.18x10^(18)J)Z^2(1/(n^2)) where n is the principal quantum number and Z is the atomic number of the element. Calculate the
asked by Anonymous 
Physics
A snapshot graph of a travelling wave is shown. The wave is travelling to the right at 50.0 m/s. What is the amplitude if the maximum displacement is 38.0 cm and the total distance travelled by the wave is 16.0 m?
asked by Bala 
spanish
5. Esas camisetas, ¿son de ustedes? Your response: Sí, son suyos Points earned: 0 out of 1 6. Esos sombreros de playa, ¿son de ustedes? Your response: Sí, son suyas Points earned: 0 out of 1 can any one help me figure those out?? i tried suyos and
asked by AYUDA ME PORFAVOR!! :) 
Physics
1)A car misses a turn and sinks into a shallow lake to a depth of 11.4 m. If the area of the car door is 0.56 m2, what is the force exerted on the outside of the door by the water? Note: 1 atm = 101 kPa.
asked by Jamine 
Math
The minute hand on a watch is 8mm long and the hour hand is 4mm long. How fast is the distance between the tips of the hands changing at one o'clock?
asked by Anonymous 
Chemistry 122
What is the pH of a solution obtained by dissolving 0.325 g of acetylsalicylic acid, in 0.5 L of water? With a Ka of 3.3 x 10 ^4.
asked by Marlynda 
Organic Chemistry
One synthetic preparation of aniline involves reducing nitrobenzene with iron and HCL, and then steam distilling the resultant aniline at 99C. How much aniline codistills with each gram of water during steam distillation? I do not know how to get the
asked by Adria 
chemistry
when a 8.77g mixture of methane, and ethane is burned in oxygen at constant pressure, 476.6kJ of heat is liberated. What is the percentage by mass of CH4 in the mixture? The standard enthalpies of combustion for CH4 and C2H6 are 890.3kJ/mol and
asked by Anonymous 
physics
A 0.50 kg ball that is tied to the end of a 1.1 m light cord is revolved in a horizontal plane with the cord making a 30° angle, with the vertical (a) Determine the ball's speed. (b) If, instead, the ball is revolved so that its speed is 4.0 m/s, what
asked by tj 
ethics
Does your organization address ethical issues in a formal and systematic way? If so, is it a cookiecutter, onesizefitsall approach or has the organization customized an ethical culture to match its unique needs? Please provide examples. i don't have a
asked by bob 
physics
In a device known as an Atwood machine, two masses m1=10kg and m2=20kg are connected by rope over a frictionless pulley. What is the acceleration of each mass if the rope is massless?
asked by Mike 
Physics
As the initially empty urinary bladder fills with urine and expands, its internal pressure increases by 3600 Pa, which triggers the micturition reflex (the feeling of the need to urinate). The horizontal square section of the bladder wall with an edge
asked by Mike 
physics
At what speed do a bicycle and its rider, with a combined mass of 100 kg, have the same momentum as a 1400 car traveling at 6.0 ?
asked by Anonymous 
Physics
A snapshot graph of a travelling wave is shown. The wave is travelling to the right at 50.0 m/s. What is the amplitude if the maximum displacement is 38.0 cm and the total distance travelled by the wave is 16.0 m?
asked by Bala 
math
jim, standing at one focus of a whispering gallery, is 6 feet from the nearest wall. his friend is standing at the other focus, 100 feet away. what is the length of this whispering gallery? how high is its elliptical ceiling at the center?
asked by anonymous 
Physics
For a certain transverse wave, the distance between two successive crests is 1.89 m, and 5 crests pass a given point along the direction of travel every 12.84 s. Calculate the wave speed.
asked by Pete 
Physics
Hello I have an assignment to do about the force table. I'm not sure about my answers, hope someone could check it for me if I answered correctly. 1.What kind of forces do you use on the force table? Explain about the used forces. Resultant force,
asked by Aransaja 
Word Problem  Algebra
A recipe for spagetti sauce requires four 16ounce bottles of ketchup to make 2 gallons of sauce. How many bottles of ketchup are needed to make 8 gallons of spagetti sauce?
asked by Anonymous 
Physics
I understand the basics of the center of mass, but I'm having a hard time with this wire one: "A uniform piece of wire, 20 cm long, is bent in the center to give it an Lshape. How far from the bend is the center of mass?" If you could help that'd be
asked by Trisha 
Trigonometry
You observe a plane approaching overhead and assume that its speed is 700 miles per hour. The angle of elevation of the plane is 16° at one time and 58° one minute later. Approximate the altitude of the plane
asked by Dave 
Microeconomics
Pharmaceutical drugs have an inelastic demand, and computers have an elastic demand. Suppose that technological advance doubles the supply of both products (that is, the quantity supplied at each price is twice what it was).
asked by Rob 
math
If f(x)=sinxcosx, what are the critical points? on the interval (o, 2pi)
asked by thomas richards 
college algebra
Using Systems of Equations. Please help!!! I'm not sure what steps to do, to work this problem. #7) Five hundred tickets were sold for a school play, which generated $3560 in revenue. The prices of the tickets were $5 for children, $7 for students, and $10
asked by Lee 
physics
Joe has a mass of 50 kg and Sally has a mass of 30 kg. They sit in class with a separation of 0.5 meters. Find the gravitational attraction between Joe and Sally.
asked by Dominique 
physics
Sprinting near the end of a race, a runner with a mass of 70 kg accelerates from a speed of 6 m/s to a speed of 9 m/s in 2 s. (a) What is the runner's average acceleration during this time? (b) To gain speed the runner produces a backward force on the
asked by confused 
CS
build a program that produce a bar chart showing the population growth of prairieville, a small town in the midwest, at 20 year intervals during the past 100 years. the program should read in the population figures (rounded to the nearest 1000 people) for
asked by Ashley Sumers 
Business
Consider the trash bag problem. Suppose that an independent laboratory has tested trash bags and has found that no 30gallon bags that are currently on the market have a mean breaking strength of 50 pounds or more. On the basis of these results, the
asked by Steve 
Chemistry
You have 150 ml of a solution of benzoic acid in water estimated to contain about 5 g of acid. The distribution coefficient of benzoic acid in benzene and water is approx 10. Calculate the amount of acid that would be left in the water solution after three
asked by Nat 
Chem 2
Metallic Magnesium can be made from electrolysis of molten MgCl2. What mass of Mg is formed by passing a current of 4.55A through a molten MgCl2 for 3.50 days? Please Help!!
asked by Missy 
Chemistry
If 75 g of ice at 0.0 C were added to 1.5 L of water at 75 C, what would be the final temperature of the mixture?
asked by Vanessa 
Medical Assisting
Steristrips cost $4.95 per box, there are 100 per box. If an orthopedic surgical group uses 200 Steristrips a month, how much would be saved in a year by making a single purchase for a year's supply rather that 12 monthly purchases.If large lots of 1,000
asked by Lisa 
math
Robert Mason's account of $98.50 has been delinquent for three months. According to the office procedures manual, after 90 days a 2% service charge, compounded monthly, is added to future bills. What will be the amount owed after nine months?
asked by lisa 
Algebra
1. Why does the inequality sign change when both sides of the inequality are multiplied or divided by a negative number? Does this happen with equations? Why or why not? 2. Write an inequality for your classmates to solve. In your inequality, use both the
asked by TRACY 
letter to the supermarket
Write a letter to the supermarket manager explaining what has happened. Tell the manager how you feel about the error and ask him to some this about it.
asked by sara 
chem
Calculate delta G rxn for a redox reaction with n = 2 that has an equilibrium constant of K = 4.4×10−2.
asked by moe 
Physics
Suppose with 200 N of force applied horizontally to your 1500 N refrigerator that is slides across your kitchen floor at a constant velocity. What are thre friction forces on the refrigerator?
asked by Mike 
Algebra
1. Why does the inequality sign change when both sides of the inequality are multiplied or divided by a negative number? Does this happen with equations? Why or why not? 2. Write an inequality for your classmates to solve. In your inequality, use both the
asked by TRACY 
Statistics
A confidence interval was used to estimate the proportion of statistics students that are females. A random sample of 72 statistics students generated the following 90% confidence Interval: (.43, .63). based on the interval above, is the population
asked by Anonymous 
microeconomic
larry, curly, and moe run the saloon in town. larry wants to sell as many drinks as possible without losing money. curly wants the saloon to bring in as much revenue as possible. moe wants to make the largest possible profits. using a single diagram of the
asked by lisey 
Math
In traveling across flat land, you notice a mountain in front of you. Its angle of elevation to the peak is 3.5 degrees. After you drive 13 miles closer to the mountain, the angle of elevation is 9 degrees. Approximate the height of the mountain.
asked by Ashley 
MATH
In traveling across flat land, you notice a mountain in front of you. Its angle of elevation to the peak is 3.5 degrees. After you drive 13 miles closer to the mountain, the angle of elevation is 9 degrees. Approximate the height of the mountain.
asked by Kourt 
physics
1. How much acceleration does a 747 jumbo jet of mass 31600 kg experience in takeoff when the thrust for each of four engines is 30000 N? 2. Two boxes are seen to accelerate at the same rate when a force F is applied to the first and 5F is applied to
asked by confused 
physics
a 1 kg dart moving horizntally at 10 m/s sticks to a wood block of mass 9 kg which slides across a friction free level surface. what is the speed of the block and dart after collision?
asked by lisa 
6th grade
A Number rounded to the nearest tenth is 6.1. The same number rounded to the nearest hundredth is 6.08 and rounded to the nearest thousandth is 6.083. What is the original number?
asked by Liliana 
Chemistry
The flask shown contains 10.0 mL of HCl and a few drops of phenolphthaein indicator. The buret contains 0.270 M NaOH. What volume of NaOH is needed to reach the end point of the titration? What was the initial concentration of HCl?
asked by Jason 
physics
A pendulum is 1.0 m long and is drawn aside 30.0* and let go. Find the velocity at the lowest point.
asked by Aurora 
Physics
A gold prospector finds a solid rock that is composed solely of quartz and gold. The mass and volume of the rock are, respectively, 14.8 kg and 1.89 × 103 m3. The density of gold is 19 300 kg/m3, and the density of quartz is 2660 kg/m3. Find the mass of
asked by Mike 
re:english
Certain experiences can mark the beginings of maturity: 1. getting your first job a) b) c) 2. graduating from high school a) Making decisions b) c) 3. getting your driver's license a) Be aware of drivers while on the road b) Say no to a drunk driver for a
asked by NeedHelp? 
Physics
A bicycle with tires .064 m in diameter travels 8.1 km. 1. How many revolutions do the wheels make?
asked by Nick 
Chemistry  Help please!
A hydrogenlike ion is an ion containing only one electron. The energy of the electron in a hydrogenlike ion is given by: En=(2.18x10^(18)J)Z^2(1/(n^2)) where n is the principal quantum number and Z is the atomic number of the element. Calculate the
asked by Anonymous 
ela
if you unscramblethe letters SATLEIVER what word do u get and it has to do with thanksgiving
asked by BRITTANY 
chemistry
a sample of indium chloride is known to be contaminated with sodium chloride. The contaminated sample weighs 2.87 g. When the contaminated sample is treated with excess AgNO3(aq), 5.79 grams of AgCl(s) are obtained. What is the percentage by mass of InCl3
asked by Anonymous 
chem
Aluminum hydroxide and sulfuric acid neutralize to make water and aluminum sulfate. the first step i have done: Al(OH)3 + H2SO4 > H2O + Al2(SO4)3 i find this one confusing XD
asked by hannah 
Math
In traveling across flat land, you notice a mountain in front of you. Its angle of elevation to the peak is 3.5 degrees. After you drive 13 miles closer to the mountain, the angle of elevation is 9 degrees. Approximate the height of the mountain.
asked by Ashley 
social studies
How has the climate of the Scandinavian countries helped define their cultures?
asked by tony 
chemistry
consider the reaction: CO (aq) + Cl2 (aq) > COCL2 (aq). Calculate Delta G at non standard conditions for the reaction at 298.15k, if the concentration of COCl2 is reduced to 0.01832M, while the concentrations of CO and cl2 remain at 1M. Delta G rxn =
asked by Tara 
chemistry
assuming the following reaction proceeds in the forward direction, what is oxidized and what is reduced? Cu2+ (aq) + Ca(s) > Cu (s) + Ca2+ (aq)
asked by Tara 
Mathematics
the probability of the home team's winning a basketball game is 80% describe a simulation of the probability the home team will win three homes games in a row
asked by Alex 
Physics
A hammer taps on the end of a 4.20 m long metal bar at room temperature. A microphone at the other end of the bar picks up two pulses of sound, one that travels through the metal and one that travels through the air. The pulses are separated in time by
asked by Gavin 
Chemistry
Calculate the osmotic pressure of this solution. 18..6 grams of solute with molecular mass of 8940 grams are dissolved in enough water to make 1.00 dm3 of solution at 25 celsius. What is the osmotic pressure of the solution?
asked by Jose Reyes 
Algebra
Suppose that a polynomial function of degree 5 with rational coefficients has 0 (with multiplicity 2), 6, and –2 + 3i as zeros. Find the remaining zero. A. –6 B. –2 – 3i C. 0 D. 2 + 3i
asked by Algebra Q 
math
Consider the experiment of selecting a card from an ordinary deck of 52 playing cards and determine the probability of a red card or a card showing a 5 is drawn. I figured the red cards would be 26/52 and the 5 would be 4/52. Would I add these two together
asked by m 
math
Consider a bowl containing 36 different slips of paper. Ten of the slips of paper contain one of the set of digits 0 through 9 and 26 slips contain one of the 26 letters of the alphabet. Determine the probability of drawing one slip, what is P (even number
asked by m 
Chemistry 122
A solution is prepared to be 0.10 M acetic acid, HC2H3O2, and 0.20 M sodium acetate, NaC2H3O2. What is the pH of this buffer? Ka for acetic acid is 1.7 x 10^5. What is the pH after 9.5 mL of 0.10 M hydrochloric acid is added?
asked by Marlynda 
Business Communications
Which of the following would be an example of an emotional appeal that is part of a persuasive message? (Points: 5) "All of the ingredients we use are homegrown in the United States." "We can save 20% in labor costs if we relocate our plant to the
asked by lisa 
english
Please check my paragraph and tell me if I need to add more. I am supposed to write a paragraph which sustains iron tone. Thannks! Being organized shows a lack of creativity. It spumes boring, takes time and doesn’t come naturally for others.
asked by Jackie 
physics
a football is kicked 40 meters. if the ball is in the air for four seconds what is the intial speed it was kicked
asked by lisa 
physics
If you tried to smuggle gold bricks by filling your backpack, whose dimensions are 66 cm 18 cm 15 cm, what would its mass be
asked by Anonymous 
psycology
700 to 1,050word paper in which you examine the discipline of environmental psychology. As a part of your examination be sure to address the following items: o Define the discipline of environmental psychology. o Compare and contrast at least two major
asked by Anonymous 
Algebra: Simple Interest
Problem: Geoff has $5000 to invest. He wants to earn $568 in interest in one year. He will invest part of the money at 12% and the other part at 10%. How will he invest. +I already know how to do Simplest Interest, I just can't read the problem to find
asked by Milly 
Chemistry
You have 150 ml of a solution of benzoic acid in water estimated to contain about 5 g of acid. The distribution coefficient of benzoic acid in benzene and water is approx 10. Calculate the amount of acid that would be left in the water solution after three
asked by Nat 
Physics
A jet airplane has an intensity of 109.7 W/ m2 when heard at a distance of 26.8 m. What is the maximum sound intensity heard by a person on the ground when the airplane is 8500 m overhead?
asked by Jill 
College Algebra
find the average weight in pounds of a type of bird of your choice. Use the rational exponent equation L = 2.43 * W^0.3326 to estimate the wingspan L in feet of the bird that weighs W pounds (Rockswold, 2006). Include in your post the type of bird and the
asked by Anonymous 
Chemistry
By titration it is found that 68.9 mL of 0.122 M NaOH(aq) is needed to neutralize 25.0 mL of HCl(aq). Calculate the concentration of the HCl solution.
asked by Jason 
Chemistry
What is the H+ concentration for an aqueous solution with pOH = 4.13 at 25 ?
asked by Pete 
Business Communications
What is the BEST reason to omit the reason for the refusal in a negative message? (Points: 5) The reader may not think of the reason. The reason reflects poorly on the company. The reason benefits the reader, but not the writer. The reason is watertight.
asked by lisa 
PHYSICS PLEASE HELP!!!
Please someone have mercy this is a test grade and I have no idea what to do ! A force of 200 N is being exerted on a blocki, which has a mass of 10 kg and is on 30 degrees inclined plane. The force is acting up the plane and parallel to it. The
asked by Tyler 
Physics
A 50kg block is at rest on a 15 degree slope. A force of 250 N is acting on the block up the slope parallel to it. If the block does not slide up the slope, what is the minimum value of the coefficient of static friction between the block and the slope?
asked by Brooke 
algebra
a salesperson who must decide between two monthly income options: Option A: Salary of $1642 per month, plus 8% of monthly sales or Option B: Salary of $1900 per month, plus 6.5% of monthly sales For what amount of monthly sales is Option A the better
asked by suzie 
Physics
A wave has angular frequency 34.3 rad/s and wavelength 2.37 m. What is its wave number?
asked by Bella 
Math
In a geometric series, t1=12 and S3=372. What is the greatest possible value for t5? Justify your answer.
asked by Emily 
algebra
x:12  x = 10:30 Solve for x.
asked by Clammyson 
Geometry
A regular polygon has an exterior angel measure of (x+3) Degrees and an interior angle measure of (13x33) degrees Find the measure of each angle How mant sides does this polygon have?
asked by Monica 
chemristy
A sample of gas occupies 18 L under a pressure of 1.3 atm. What would the resulting valume be if the pressure were increased to 3.9 atm if the temperature did not change?
asked by kevin bolton 
Math
66*6+6/6=1 where will the parentheses go in order for this to become true?
asked by Nicole 
Physics
Between each pair of vertebrae in the spinal column is a cylindrical disc of cartilage. Typically, this disc has a radius of about 2.6 x 102 m and a thickness of about 1.4 x 103 m. The shear modulus of cartilage is 1.2 x 107 N/m2. Suppose a shearing
asked by Mike 
Thermodynamics
Oxygen reacts with the dipeptide glycylglycine [C4H8N2O3(s)] to form urea [CH4N2O], carbon dioxide and water: 3O2(g) + C4H8N2O3 (s) > CH4N2O (s) + 3CO2(g) + 2H2O(l) At T=298.15 K and 1.00atm, solid glycylglycine has the following thermodynamic properties:
asked by Jill 
6th garde Math :)
what is the greatest common factor (GCF) of 25 ; 50
asked by karol <3 
spanish
Con quien acabas de hablar?
asked by miranda 
Please Help! Calculus
We have to find out which of these statements are true. I narrowed it down to 2 answers. a) if f"(0)=0, the the graph of f changes concavity at x=0 b) If the function f is continuous on the interval [a,b] and the integral from a to b of f(x)dx=0, then f
asked by Leanna 
chemistry
What is another way to write Fe or Ba electron configuration, charge,and number os unpaired e?
asked by kim 
Algebra
There are two similar triangles XYZ, and ABC. If x = 8, c = 5, and y = b, find z and a. How am I suppose to solve this problem if y = b? Do I find what b is first? Or will the answer be with a variable?
asked by Milly 
chemistry
For a certain reaction, Delta H(not) = 76.8 kj and delta S(not) = 217 j/k. If n =3, calculate E for the reaction at 25degrees celcius.
asked by Tara 
algebra
Consider the polynomial f(x) = 3x3 – 2x2 – 7x – 2. (a) By using the Rational Zero Theorem, list all possible rational zeros of the given polynomial. (b) Find all of the zeros of the given polynomial. Be sure to show work, explaining how you have
asked by Math Loser :( 
algebra
the cost of living last year went up 3% fortunately alice swanson got a 3% rais in her salery from last year. This year she is earning $22,660 how much did she make last year
asked by nora 
English
Can you please check this paragraph on Frankenstein and the tradition of the Gothic novel. Thank you very much. 1)Gothic novels reached their popularity at the end of 18th century. The adjective “Gothic” was first used in architecture and then applied
asked by Franco 
Chemistry 122
A solution of nicotinic acid, HC6H4NO2, of concentration 0.012 M has a pH of 3.39 at 25 degrees Celsius. Calculate Ka for this acid.
asked by Marlynda 
ss
QuadPlex Cinema is the only movie theater in Idaho Falls. The nearest rival movie theater, the Cedar Bluff Twin, is 35 miles away in Pocatello. Thus QuadPlex Cinema possesses a degree of market power. Despite having market power, QuadPlex Cinema is
asked by ss 
summerville high
how many ways can a jury of six men and six women be selected from twelve men and ten women?
asked by sam 
College Physics
Which one of the following statements about a thermodynamic engine is not true, i.e., which one of the statements is false? 1)The internal energy is always the same at the beginning and at the end of one cycle. 2)The absorbed and the exhausted heat have
asked by Tracy 
Math
Can 252/1663 be simplified? If it can be simplified, what is the new simplified fraction?
asked by Maddy 
Math
An object is heated to 90 degrees Celcius and is then allowed to cool in a room whose air temperature is 25 degrees celcius. If the temperature of the object is 75 degrees celcius after 10 minutes, when will its temperature be 50 degrees celcius?
asked by Hannah 
chemistry
what mass of phosphine oxide, is produced by the reaction of 15.0 g phosphine, 8.0 L oxygen at 25 degrees celcious and 755 mmHg
asked by Anonymous 
english
Please correct my sentence english is not my native language and I don't feel comfortable to turn in. Also my Summary and Anecdote. Thank u very much! (Anecdote) She lives in land that almost has the same climate in the desert. Starvation is not something
asked by Mariae 
Physics
A wave is travelling to the right at 50.0 m/s. What is the amplitude if the maximum displacement is 38.0 cm and the total distance travelled by the wave is 16.0 m?
asked by Bala 
Physics
A force of 50 N directed 30 degrees above the hoizontal is applied to a 10kg block at rest on a rough horizontal surface. What is the coefficient of kinetic friction between the block and the horizontal surface if the acceleration of the block is 2.0
asked by Heather 
Physics
A centrifuge rotor rotating at 10700 rpm is shut off and is eventually brought uniformly to rest by a frictional torque of 2.48 m * N. 1. If the mass of the rotor is 5.61 kg and it can be approximated as a solid cylinder of radius 0.0820 m, through how
asked by Nick 
math
The following graph shows how a 4color web printing press depreciates from the year 2006 to the year 2010. It was purchased new in the year 2006; therefore x = 0 represents the year 2006. X – axis (horizontal) = years starting from 0 = 2006 and
asked by Anonymous 
art history
How might the Romans have sought to create believable images in their sculptural works, and how do the Roman works compare with the ones that we ha already studied?
asked by Anonymous 
calculus
find the positive roots of the equation 2x^35x^2+6=0 and evaluate the function y=500x^6 at each root. round you answers to the nearest integer, but only in the final step.
asked by maritza 
Calculus 1
Find dy/dx by implicit differentiation. X^2 + y^2 = tan(xy)
asked by Amy 
Physics
Earthquakes are essentially sound waves travelling through the earth. They are called seismic waves. Because the earth is solid, it can support both longitudinal and transverse sismic waves, which travel at different speeds. The speed of longitudinal
asked by Stella 
biology
at the end of meiosis 2 are the chromosomes replicated?
asked by mariam 
Math
Bob was given and exercise prescription for 35 METS for his home exercise program. He is currently walking, and at the fitness center using a treadmill, walking 3.2 mph up a3% incline. Bob weighs 70kg. is Bob exercising in his prescribed zone? 1 MET = 3.5
asked by kaden 
microeconomics
. For each event, illustrate the impact on the relevant market and determine what will happen to the equilibrium price and quantity in that market. (40 points – 10 points per line item) Event Market for: Show which curve shifts Equilibrium price rise or
asked by tony swift 
Physics
If the flagpole has a mass of 21 kg and length 10 m and the angle the cable makes with the pole is ϕ = 20°, what are the magnitude and direction of the force exerted by the hinge on the flagpole? Assume the mass of the pole is distributed uniformly.
asked by J Velji 
math
John forgot to pay his $364 income tax on time. The IRS charge a penalty of 12% for the 55 days the money was late. Find te penalty that John paid
asked by Anonymous 
physics
At what temperature do the molecules of nitrogen gas have an rms speed of 34 m/s? 34 m/s is a typical highway speed for a car.
asked by lisa 
chemistry
Calculate the Delta G(not) for the reaction: C(s) + CO2 (g) > 2 CO Delta Gf : CO2 = 394.4 kj/mol Delta Gf : CO = 137.2 kj/mol
asked by Tara 
Physics
A die is designed to punch holes of radii 2.17 x 102 m in a metal sheet that is 5.53 x 103 m thick. To punch through the sheet, the die must exert a shearing stress of 3.5 x 108 Pa. What force must be applied to the die? (Hint: Consider carefully which
asked by Mike 
Chemistry
Methane is formed in landfills by the action of certain bacteria on buried organic matter. If a sample of methane collected from a landfill has a volume of 500. mL at 744. torr and 22. °C, how many grams of methane are in the sample?
asked by Marisa 
Physics
A jet airplane has an intensity of 92.4 W/ m2 when heard at a distance of 21.2 m. What is the maximum sound intensity heard by a person on the ground when the airplane is 10700 m overhead?
asked by Bella 
math
Name all the arrays you can make with each set of tiles. 1. 8 tiles 2. 9 tiles 3.16 tiles
asked by Anonymous 
Geometry
Is it possible for a triangle to have sides with the following lengths: 5, 9, 15?
asked by Molly 
Chemistry
Hydrogen peroxide can be prepared by the reaction of barium peroxide with sulfuric acid according to BaO2(s)+ H2SO4(aq)> BaSO4(s)+ H2O2(aq) How many milliliters of 3.00 M H2SO4(aq) are needed to react completly with 85.1g of BaO2(s)?
asked by Jason 
Chemistry
In an experiment, 3.545 grams of an unknown nonelectrolyte is dissolved in 15.0 grams of water. The extrapolated freezing point is .56 degrees C. What is the molecular weight of the unknown material?
asked by Cerra 
Psy 265
· Write a 700 to 1,050word response, on the determining factors of gender identification and gender roles. Include the following in your response: · State the factors that determine gender identity. · Explain how a person’s masculine and feminine
asked by Jackie 
chem
Balance the skeletal equation for the synthesis of urea. (Enter 0 for any empty boxes. Use the lowest possible coefficients.) _NH3 + _CO2 ¨ _CO(NH2)2 + _H2O in the _ goes a number
asked by hannah 
Economics
what is meant by the term utility and how does it relate to purposeful behavior?
asked by CJ 
statistics
1. Test the Nation on CBC:“Test the Nation” was the biggest survey ever conducted to see just how smart Canadians are. In this live twohour special, 1.5 million Canadians participated in a realtime interactive IQ test. Viewers took the test in the
asked by dave 
i would like to apoligize
im sorry my five year old little brother posted those questions while i was studying for my geography test
asked by stan&cartmen 
English
can someone please proofready my essay and fix any grammar errors I make have Thanks. Frederick Douglass had rough transition from freedom to slavery. His journey changed from oppression to freedom. He did not know what God had planned for his life, but he
asked by Keisha 
US History
The fact that John F. Kennedy was Catholic: A. was not an issue that he felt he needed to discuss. B. was never considered an issue in the election of 1960. C. was dealt with effectively by Kennedy I think it may be C but not completely sure ?
asked by anthony 
PHYSICS~Bobpursely
Bobpursely can I please receive help from you. My posts are down below.
asked by Anabelle 
vocabulary skills
which greek base means eye? 1.neur 2.myel 3.phren 4.ophthalm
asked by carl 
College Algebra
Only 34% of the carbon14 in a wooden bowl remains. How old is the bowl? (Carbon14 has a halflife of 5,700 years.)
asked by Lexi 
Math
If there are 16 people at a party and one of the group decided to conduct a poll of who the president of the united states was, explain whether you would expect the answer to be accurate and why?
asked by Amanda 
Chemistry
What is the concentration of HCl when 25.0 mL of HCl completely reacts with 10.0 mL of 0.1M solution of NH4OH (subscript 4)? Solution steps would be helpful so I can solve other similar problems.
asked by Cody 
Science
I have to write a project proposal about the global climate crisis so I can do a report and powerpoint. I need suggestions on what to write about by answering the following questions.... How do I affect the water and carbon cycle and what can I do to
asked by Nick 
Managerial Communications
What are some manager audience characteristics that I should consider while presenting quarterly sales information?
asked by Marie 
Math
My teacher gave us a puzzle. I have worked on it for 2 hours with both my parents and they can not figure it out. 0 o 0 o 0 o 0 o 0 In the above there are 5 squares. Top left, top right, bottom left and bottom right, and the last one formed by the o's
asked by Tim 
Statistics
The X2 goodness of fit can be used for both qualitative and quantitative data Is this true or false?
asked by Lisa 
math
what are thefactors of 80(5th grade math)?
asked by helen 
Statistics
Two ways in which practical statistics outweighs statistical significance?
asked by Chrissy 
Physics
What are the basic uses of a CRO (cathode ray oscilloscope) Thanks
asked by Billie 
chemistry
what is the chemical equation for HCL and NaOH?
asked by Anonymous 
College Algebra
For a test question, a mathematics teacher wants to find two constants a and b such that the test item "Simplify a(x + 2y) − b(2x − y)" will have an answer of 4x + 12y. What constants a and b should the teacher use?
asked by Lexi 
English
Certain experiences can mark the beginings of maturity: "getting your first job graduating from high school getting your driver's license" i need help getting some supporting details for the 3 ideas above. i just need some suggestions. please help and
asked by NeedHelp? 
anayltical chemistry
I have tried and tried to use the hendersonhasselbalch equation for this problem, but i do not understand how to plug in the data: how much ammonium sulfate should be added to 500mL of .3M ammonia to produce a buffer with a pH of 9.?
asked by joey 
12th Grade Government
_____ believed that there should be no limits to the power of the government once the will of the people was determined.
asked by Tiffany 
chemistry
whats a compound
asked by desmond 
Statistics
Quality Progress, February 2005, reports on the results achieved by Bank of America in improving customer satisfaction and customer loyalty by listening to the “voice of the customer.” A key measure of customer satisfaction is the response on a scale
asked by Steve 
9th grade
Why isnt a ladder a good model for an atom?
asked by Kayka 
California State Map
How many national parks are in the state of California?
asked by Wyatt 
chemistry
1 liter of a 1 M lithium hydroxide solution is added to 1 liter of a 1 M barium chloride solution, and a precipitate forms. What ions are left in solution after the reaction is complete? What ions are left in solution after the reaction is complete?
asked by Elise 
algebra
Use synthetic division to divide the polynomial 2x3 – 45x + 28 by x + 5, and write the quotient polynomial and the remainder. [Be careful – notice that there is no x2 term.]. Show work.
asked by Math Loser :( 
math
If the total number of coins collected is $6.70 and the total number of nickels is .55, What is the fraction of nickels to the total number of coins?
asked by Kim 
Physics
An elevator operates on a very slow hydraulic jack. Oil is pumped into a cylinder that contains the piston. The piston lifts the elevator as the internal cylinder pressure (P2) rises in comparison to the outside pressure (P1=101,325 Pa or about 14.7 psi).
asked by Ansermi 
Math
How can the faces of two cubes be numbered so that when they are rolled, the resulting sum is a number 1 to 12 inclusive and each sum has the same probability?
asked by Brian 
chemistry
How many grams of solute are present in 205 mL of .340 M KBr?
asked by Jason 
Math
Prove :cosxcosy= 2sin(x+y/2)sin(xy/2) Prove: 2cot2tanx= 42sec^2x / tanx
asked by Sarah 
Math
Which statement is true about all prisms? A. Prisms have a pair of opposite faces B. The faces of a prism are congruent C. Prims have the same number of verticrs as edges D. The base of a prism is larger then the other faces.
asked by Bill 
chemistry
1) why do copper 2 sulfate chrystals not conduct electricty? 2)why is copper 2 sulfate solution a good conductor of electricity? 3)why is water a poor conductor of electricity ,
asked by olivia 
physics
An outfielder throws a baseball from the outfield to the third baseman. In flight, the ball reaches a height of 25 ft above the ground. The outfielder releases the ball from a height of 6 ft above the ground with a speed of 124 ft/sec. The ball is caught 6
asked by sandhu 
Physics
An elevator operates on a very slow hydraulic jack. Oil is pumped into a cylinder that contains the piston. The piston lifts the elevator as the internal cylinder pressure (P2) rises in comparison to the outside pressure (P1=101,325 Pa or about 14.7 psi).
asked by Calvin 
Shape and Space
The circumference of a mysterious crop circle measure 60 meters. What is the approximate radius,rounded to the nearest meter?
asked by lululemon 
MATH
IN A CLASS 3 OUT OF EVERY 7 STUDENT ARE MALES IF THERE ARE 27 MALES HOW MANY STUDENT ARE IN THE CLASS
asked by TIFFANY 
vocabulary skills
The Greek base ANGI means?
asked by theresa 
MATH
3 OUT OF EVERY 4 STUDENT HAVE A COMPUTER AT HOME IF THERE ARE80 STUDENTS HOW MANY HAVE COMPUTERS AT HOME
asked by TIFFANY 
Statistics
1. A large video rental chain recently decided to change its rental policy, allowing an unlimited return date instead of requiring that movies be returned the next day. The marketing team reasoned that this would greatly increase the popularity of their
asked by lina 
physics
1.A firetruck is traveling at a velocity of +20 m/s in the x direction. As the truck passes x=63m it shoots a tennis ball backwards with a speed of 20 m/s relative to the truck at an angle of 39° from a height of 1.4 m. Neglect air resistance. At what x
asked by sandhu 
1st grade
how i am going to fix this sentence. i go to scott elementary school
asked by kate 
Math
If Sue bought a on sale for $21.50. If the sale was a 15% off sale, how much money did she save compared to if she bought it at the regular price?
asked by Kanicka 
ALGEBRA/ PLEASE HELP
Am I correct? Find the slope and the y intercept of y =  10/3x  9/2. The slope is 10/3 because this is what is in front of x and the y  intercept is (0, 9/2)? The second question is I need to find the slope of a graph that was provided for me. The y
asked by CANDY 
maths
find the gradient of the curve y=2x^35x^2x+1 at the pt (2,5). find the xcoordinate of another pt on the curve where the tangent at that pt is parallel to the tangent at the pt (2,5)
asked by yani 
finances
Calculate the future value of the following: o $5,000 compounded annually at 6% for 5 years o $5,000 compounded semiannually at 6% for 5 years o $5,000 compounded quarterly at 6% for 5 years o $5,000 compounded annually at 6% for 6 year What conclusions
asked by Rhalaj 
Math
Calculate the monthly payment loan amortization table. Loan $26,000 Down Payment $5,000 11% for 36 months
asked by Math Question 
physics
How much work must be done to stop a 1040 kg car traveling at 111 km/h?
asked by rachel 
algebra2
Using complete sentences, explain which method you would use to solve the following system of equations and why. In your answer, include the solution to one of the variables and how you found it using the method you chose. 2x + y + z = –7 x – 3y + 4z =
asked by Rayniya 
PHYSICS~Acceleration
Two students get in an elevator on the ground floor and ride the elevator up to the fifth floor? Describe what happens to their velocity and acceleration during the trip. Would their velocity be increasing? There would be upward acceleration at first and
asked by Anabelle 
6th grade
what value of p makes this equation true?44*73=44*(p+3)? a)41. b)47. c)70. d)73 if you got it right give your self a clap.
asked by elaisa 
physics (lVERY LONG)
A force of 200 N is being exerted on a blocki, which has a mass of 10 kg and is on 30 degrees inclined plane. The force is acting up the plane and parallel to it. The coefficient of friction between the block and the plane is .3 and the plane is 12 m long.
asked by rhet butler 
Math
Kelly has a 2.89 GPA after 54 credits. She is taking 16 credits this quarter. What must her GPA be this quarter to raise her ovarall GPA to 3.0
asked by Samantha 
Physics
what is the variation of pressure in the sound wave if the sound intensity is 3.85x10^8 W/m^2 the speed of sound is 343 m/s and the density of air is 1.2 kg/m3?
asked by Jill 
Physics
A microphone has an area of 6.7 cm2. It receives during a 4.62 s time period a sound energy of 2.5x1011 J. What is the intensity of the sound?
asked by Pete 
Physics
1) A microphone has an area of 6.7 cm2. It receives during a 4.62 s time period a sound energy of 2.5x1011 J. What is the intensity of the sound? 2) Using the intensity in the previous question, what is the variation of pressure in the sound wave if the
asked by Bala 
Algebra
For f (x) = x4 – 2x2 – 7, use the Intermediate Value Theorem to determine which interval Must contain a zero of f. A. Between 0 and 1 B. Between 1 and 2 C. Between 2 and 3 D. Between 3 and 4
asked by Help please 
vocabulary skills
the greek combining form pathy means: 1.abnormal discharge. 2.tumor arising in or composed of. 3.disease of. 4.treatment of.
asked by carl 
Precalculus
1. Prove csc(symbol for angle) tan(symbol for angle) = sec(symbol for angle) 2. Prove cosx+sinxtanx=secx
asked by Anonymous 
M,ath
How do we find the greatest common factor of a polynomial? Demonstrate the process with an example, showing your work. When finding the greatest common factor of a polynomial, can it ever be larger than the smallest coefficient? Can it ever be smaller than
asked by Anonymous 
English
I forgot to include the followig sentences. I really hope you can have a look at them, too. 1) The crew is trapped for many days. Victor is confined to a desolate place when he is trying to carry out his experiment. Actually, he restricts (?) himself
asked by Franco 
probability
1. A large video rental chain recently decided to change its rental policy, allowing an unlimited return date instead of requiring that movies be returned the next day. The marketing team reasoned that this would greatly increase the popularity of their
asked by lisa 
Physics
1) A microphone has an area of 6.7 cm2. It receives during a 4.62 s time period a sound energy of 2.5x1011 J. What is the intensity of the sound? 2) Using the intensity in the previous question, what is the variation of pressure in the sound wave if the
asked by Bala 
social studies
what do the egyptians stuff in the eye sockets of mummies?
asked by Andrea 
PHYSICS~Acceleration
What happens to the velocity of an object as it falls if the only force acting on the object is gravity? What happens to the acceleration of the object? Would the velocity be constant? Would the acceleration increase downward?
asked by Anabelle 
accounting
Glenmore Corp. purchased a fax machine at the beginning of 2007. The fmx machine cost s1,000 and is expected to last live years Its salvage value is expedted to be $50. It Glenmmore uses straightline depreciabon, what will the fax mactiines net book value
asked by ana 
Math
What is 12/6 x 35? If following order of operations (PEMDAS) you would multiply 6 times 3 and which is 18 and then divide by 12 but this will not give you a whole number?
asked by Hayden 
biology
What are some different types of mutant proteins?
asked by Anton 
Math  for Sue
Ok Sue my last problem for the night then I am done!! Yeah 2x + 3 > x + 5 2xx+33
asked by TRACY 
Math
Three large barrels are transported on a railroad car by stacking the third one on top of the other two and using a tight metal band around all three to hold them together. If the outside diameter of each barrel is 3 feet, then what is the length of the
asked by CC 
algebra
To estimate animal populations, biologists count the total number of animals in a small section of a habitat. The total population of animals is directly proportional to the size of the habitat (in acres) polled. Write an equation using only one variable
asked by Nikki 
English
1. I am going to try an English club. (What is the meaning of 'try' here? What other expressions can we use? Would you rephrase this sentence?)
asked by rfvv 
algebra
Consider the polynomial P(x), shown in standard form and in factored form. (a) State the behavior at the ends (fill in blanks): At the left, as x „_ ¡V„V, P(x) „_ __ (choose ¡V„V or „V). At the right, as x „_ „V, P(x) „_ __ (choose
asked by Algebra Q 
social studies
What benefits do welfare state offer their citizen?
asked by tony 
Physics
1.) A lawnmower engine claims to provide 18 hp of power and 6.25 ft lb of torque. If this is true, what must be the rotational speed in RPM? 2.) The conversion of the shaft power of a wind turbine to electricity is the function of the generator. Assume it
asked by Pleseansermi 
Help
What are some of the risk areas that can be identified through the auditing process.
asked by Auditing 
math
solve 2│2x7│+11=25
asked by Mimi 
college Algebra
Please explain with complete step by step instructions. #8)One type of lawn fertilizer consists of a mixture of nitrogen, phosphorus and potassium. An 80lb sample contains 8 move lbs of nitrogen and phosphorus than potassium. There is 16lb more potasssium
asked by Lee 
government
all of the following are examples of thenonlegislative powers of Congress except
asked by Anonymous 
math
subtraction of fractions 3 2/5  1 3/5
asked by Batul 
Chemistry
How many moles are there in 569 grams of copper
asked by Anonymous 
Math
Meka plans to bake a large circular cookies for her brothers. She wants to decorate the outer edge of the cookie small pieces of choclate. The radius of the cookies is 7 inches.What would be the closest to the curcumference of the cookie?
asked by Bill 
English
I forgot to include the following sentences. Thank you very much for all. 1) He manages to set himself free throwing some of his persuers into the air (?). Finally, he jumps into a cart full of dead corpses headed out of town. 2)He jumps off and finds
asked by Franco 
Calculus
Compute the derivatives of : f(x)= x^7 + 7^x+ 7^7
asked by JJ 
geography
is the mantle convection current is the process of plate movements? please help and thank you
asked by needhelp 
math
how to write two equivalent fractions with 3/4>5/18 4/9>1/6 4/17
asked by ronnie 
12th Grade Government
Why was it important to the Founding Fathers to justify their actions by evoking traditional English rights?
asked by Tiffany 
physics
what force is acting on a circular platform rotating opposite of a person standing on the edge?
asked by ashley 
Chemistry
a certain brand of laundry aid called "Oxydoodle" is 12.5% (w/w) sodium percarbonate and 87.5% (w/w) sodium carbonate. Calculate the % (w/w) h2o2 in Oxydoodle
asked by Shannon 
Chemistry
For the voltaic cell Cr(s)/Cr3+(aq)//Ni+2 (aq)/Ni(s), list the reactions at the cathode, anode, and the overall net reaction.
asked by Tara 
Physics
A jet airplane has an intensity of 92.4 W/ m2 when heard at a distance of 21.2 m. What is the maximum sound intensity heard by a person on the ground when the airplane is 10700 m overhead?
asked by Bella 
Physics
a 36.1 N crate is resting on the floor. When you push horizontally on the crate with a force of 16.9 N, it accelerates at 0.15 m/s2. How large is the frictional force acting on the crate?
asked by Maredith 
General Chemistry
Calculate the E of the following cell if [CIO3] = 1.5M, [H]= 0.5M, [CI]=1.0M and [CU2]= O.25M: CI03 + 3CU + 6H = CI +3Cu2+ +2h20
asked by Ashley 
Please Help
The method used to calculate depreciation for federal income tax purposes is ?
asked by Math Question 
physics
An 3730 kg airplane has a center of mass located 32 m from the front of the plane. A 123 kg man sits 25 m from the front of the plane. Where should a 76 kg woman sit so that the center of mass of the loaded plane is the same as the empty airplane? (m from
asked by sandhu 
Math
How would I find the zeros of the function x^3 7x +6 ? I know how to do with a x^2 term but, I'm confused as to how to do it when there isn't an x^2.
asked by Emily 
vocab
Most stories have good and bad characters. which word would most likely describe the bad characters in most books? a) malnourished b)malodorous c) malignant d) malevolent
asked by Alana 
letter to the bank
Write a letter to the bank explaining what have happened and say that you would live to do about it
asked by sara 
math
If you know that an individual (72kg) has a side job mowing lawns and they do it 10 hours a week, then how many kilocalories are expended each week doing this activity? [(METSx3.5xbodyweight inkg)/200=kcal/min
asked by kaden 
health
Bob was given and exercise prescription for 35 METS for his home exercise program. He is currently walking, and at the fitness center using a treadmill, walking 3.2 mph up a3% incline. Bob weighs 70kg. is Bob exercising in his prescribed zone?
asked by kaden 
Precalculus
1. What quadrant would the terminal side of the angle of t=4pie/3 be? 2. What quadrant would the terminal side of the angle of t=3pie/2
asked by justin 
Social St.!!!ASAP!!!!
What are the 3 worst laws that were passed by the parliament (13 colonies)?????
asked by Sumaiya 
Physics
1) A microphone has an area of 6.7 cm2. It receives during a 4.62 s time period a sound energy of 2.5x1011 J. What is the intensity of the sound? 2) Using the intensity in the previous question, what is the variation of pressure in the sound wave if the
asked by Bala 
Math
The width of a single cour is 3/4 of the width of the double court. Double court which is the base= 36 feet and the height= 78 feet What is the area of the singles court?
asked by Bill 
Math
Meka plans to bake a large circular cookies for her brothers. She wants to decorate the outer edge of the cookie small pieces of choclate. The radius of the cookies is 7 inches.What would be the closest to the curcumference of the cookie?
asked by Bill 
Chemistry
Calculate the number of moles of solute in 18.33 mL of 0.1115 M K2Cr2O7(aq)
asked by Jason 
math
a pair of dice are rolled and the sum on their upturned faces is recorded. What is the probability that the sum showing is 8, given that one die is showing a 5? Taking into consideration the numbers 16 on the second die wouldn't the probability be 1/6?
asked by m 
Allied Health
A man sued his surgeon for malpractice. although the surgeon was found guilty, the man was awarded only $25 because he didn't suffer any actual damages. This case is an example of actual, punitive, nominal or compensatory damages. I chose "nominal"
asked by Abel 
math
Jane uses a 60 minute tape to record songs on, if each tape is 40 seconds long. How many songs can she tape on the 60 minute tape
asked by carolyn 
math
What is the probability of flipping a coin two times and getting no heads? Would that be 1/2x1/2=1 so the probability is 1%?
asked by m 
math
What is the cost of a bicycle in USD if the cost in Euro is 700?
asked by carolyn 
Physics
1.) A lawnmower engine claims to provide 18 hp of power and 6.25 ft lb of torque. If this is true, what must be the rotational speed in RPM? 2.) The conversion of the shaft power of a wind turbine to electricity is the function of the generator. Assume it
asked by Carl 
english
did dwight d eisenhower achieved the american dream?
asked by sue 
biology
What are some different types of mutant proteins?
asked by Anton 
biology
What are some different types of mutant proteins?
asked by Anton 
Math
If you invest 250.00 for 10 years at 6%,coumpounded monthly, what would the interest be. The amount I calculated for the investment is 40,969.83, but I am not sure of the interest.
asked by Kathy 
maths
i am divisible by 8 and9.i am a three digit multiple of 10. i am between 200 and 700.
asked by hannah 
Algebra
If 3 is a zero of the polynomial f(x), then which of the following is NOT necessarily true? A. (x – 3) is a factor of the polynomial f(x). B. 3 is a solution of the equation f(x) = 0. C. (3, 0) is an xintercept for f. D. (0, 3) is a yintercept for f.
asked by Math is hard! 
algebra
don williams invested some money st 9% simple interest. At the end of the year, the total amount of his original principal and the interest was $6.540. How much did he originally invest
asked by nora 
Chem 30
Why can't the Ka for HCl be obtained from a titration curve like that of acetic acid?
asked by Alix 
Math:Calculus
Use the Fundamental Theorem of Calculus to find the derivative of g(x)=1/(1+t^5)dt in the interval 1 to x.
asked by HELP!!!! 
chemistry class
What is the pH of an aqueous solution at 25.0 °C that contains 3.98 × 109 M hydroxide ion? i posted this before and i tried solving it but i get it wrong 14 = ph +  log (3.98 × 109) 14 8.4 = ph 5.6 = ph but the correct answer is 8.400 what did i do
asked by jessie 
math11Plelase check
Hi I need to write these systems of equalities in slope intercept form so I can graph them. 20x+4.5y
asked by Sandi 
Chemistry
How many moles are there in 52.3 grams of nickel
asked by Anonymous 
History
I would like to know if you could give me your opinion on why some people might find it wrong that those who celebrate the Day of the Day place wooden skulls on the altars that they create and wear skull masks to honor their loved ones. They used the
asked by Sarah 
Chemistry
How many moles are there in 965 grams of boron
asked by Anonymous 
math
2 cards are drawn without replacement from an ordinary deck of 52 playing cards. What is the probability that both are spades if the first card drawn was a spade? I think you subtract out the first spade making the probability 12/51 since you take off the
asked by m 
4th grade math
how do u make mm into cm
asked by cyress 
PHYSICS~Acceleration
which of the following are possible units for acceleration? ~ the dashed line represents an underline. A. cm/s  s B. m * s  s C. km/h/s D. min  min/km Would AC all be possible units for acceleration? I don't think D would
asked by Anabelle 
Algebra
There are two similar triangles XYZ, and ABC. If x = 12 and z = 3c, find a. How do I work with that problem when z = 3c?
asked by Milly 
math
If you buy a pamphlet for $20.00 or copy the pamphlet for $.10 per page, and the prices are the same, how many pages does the pamphlet have?
asked by carolyn 
math
If you exchange 300 usd for euro's how many euros would you have?
asked by carolyn 
geology
What is the minimum age of Earth. We are given a hint of: If the age of Earth were equal to one calendar year, the 1492 arrival of Christopher Columbus in America would have occurred at five seconds to midnight Dec. 31. That confuses me even more.
asked by m 
maths
how many tickets did i buy if i spent £30 formula is C=20+0.1t
asked by aj 
lit
which word is not derived from terms used in drama? 1.chorus 2.pants 3.scene 4.size
asked by carl 
Physics
A wave with frequency 12.2Hz and amplitude 47.7 mm moves in the positive x direction with a speed of 8.9 m/s. What is the waves wavelength?
asked by Pete 
Physics
Hey, have a question in Physics From a power magazine released 300,000 gallons of water pr.sekund into a pipeline leading to a turbine plant. Height difference between the magazine and the turbines are 300meter. The turbines provide 0.7 GW power. How large
asked by Oddbjørn 
physics
The force F = (3.2, 7.1) N acts on a mass of 1.15 kg. At time t = 0 s, the mass has a velocity v0 = (0.46, 0.36) m/s. What is the initial kinetic energy (in J)? i know that k=.5mv^2 so the answer i got was (.12167,0.07452) but i'm not sure what to do
asked by help 
MAth
What is 1/80 estimated to the nearest hundred?
asked by Anonymous 
social studies
How do you think having ombudsmen would change the U.S. government
asked by tony 
6th grade
I am an improper fraction that is more than two and one third and less thatn two and three fourths. The sum of my numerator and denominator is 29. What number am I?
asked by jonothan 
Thankyou Ms. Sue
But it did not give me the answer I was looking for. Would you have any more links I might try. I would appreciate it very much.
asked by Math Question 
Marketing
Several years ago, a brewing company led a charge of microbreweries in an attack on the established brewers' domestic beers. Explain and describe the following: What is micromarketing? How might it have been used by microbreweries? What communications
asked by Mike Row 
US history
When Kennedy was elected president, many were: A. pleased because of his clear experience. B. fearful because he had appointed such controversial people to the cabinet. C. pleased because of sound cabinet appointment and his ability to inspire. I think it
asked by anthony 
chemistry
calculate the energy of a wave that has a frequency of 3.5*10^8 m/s
asked by linda 
Physics
If I'm travelling with a bag of objects on the seat next to me and I turn right, which direction does the bag fall and why? What does this have to do with friction, centripetal and inertia
asked by Jake 
ChemIstry
How any grams are there in 3.69 moles of sliver?
asked by Anonymous 
English
Can you please check if the following sentences summarising part of the film Frankenstein are possible? 1) Though the town is affected by cholera Victor decides not to abandon his work. 2) His work comes even before his beloved Elizabeth, who tries to
asked by Franco 
Language Arts
What is the subject in the sentence: Third graders are very polite and they just finished learning all their manners.
asked by Jo Jo 
math
how do you convert fractions to decimals.
asked by Karen 
Business Communications
Which of the following is NOT a question you need to answer to choose a persuasive strategy? (Points: 5) What do you want readers to do? What points will the audience agree with? How strong a case can you make? What kind of persuasion does your
asked by lisa 
Healthcare
How might a novice confuse the following advance directives within the PatientSelf Determination Act when distinguishing information as administrative or clinical?
asked by HCR 210 
math
If P(A) = 2/3, P(B) = 1/6, and P(A and B) = 0, what can you say about P(A or B)? Not sure how to answer this one.
asked by m 
History
Is there any website where I could find the picture of the Empresario Grants Coahuila Y Tejas Map?
asked by Ashley 
Inequalities
Express deliveries plan is 15+1.25m PDQ deliveries plan is 25+0.75m For what number of miles (m) is PDQ less expensive?
asked by Lydie 
math
fill in the correct symbol. < = > 6+7 __ 7+6
asked by kate 
international business
what are the advantages and disadvantages of integration
asked by pj 
PreCal
Let g(x)=2x+6 if k(g(x))=4x+12/3the square root of 2x5. Find the formula for k(x)
asked by Vic 
11th grade
accounts cash book find journal entries for. (1) discounted bill of rs .1000 at1% by bank (2) interest allowed by bank rs.5000
asked by mrudula 
Chemsistry
How many moles are there in 857 grams of sodium?
asked by Anonymous 
Algebra 2 with Trig
what is the index of three with the square root of negative 432
asked by Rekiesher 
math
4x+7
asked by TRACY 
social studies
a project about population
asked by atiya 
vocabulary skills
which word did not originate from those used in various occupations? 1.seasons 2.person 3.tease 4.broker
asked by theresa 
6th grade
What is 5/8 of 1/50?
asked by Anonymous 
allen school
write 200 words identifying three challenges that might arise when writing a persuasive paper
asked by esther