Questions Asked on
January 26, 2013

General Chemestry
A galvanic (voltaic) cell consists of an electrode composed of chromium in a 1.0 M chromium(II) ion solution and another electrode composed of gold in a 1.0 M gold(III) ion solution, connected by a salt bridge. Calculate the standard potential for this
asked by Anonymous 
AP Chemistry
Water is being electrolysed in the presence of a nonreactive electrolyte under standard conditions. If 2.5 amperes of current flows through the circuit for 13.6 minutes at 25 degrees celsius and 1 atmosphere, what volume of hydrogen gas is produced?
asked by Toni 
Math
How do I solve 14 T 1,000 lb + 2 T 1,000 lb ?
asked by Moby 
Vector Calculus
An airplane is traveling in the direction 20degrees west of north at 700 km/hr. Find the component form of velocity of the airplane assuming that the positive xaxis represents due east and the positive yaxis represents due north.
asked by Melissa 
Chemistry
Using chemical equations, show how the triprotic acid H3PO4 ionizes in water. Phases, such as (l) or (aq), are optional.
asked by Debbie 
Statistics
A population has a mean of 30 and a standard deviation of 5. a. If 5 points were added to every score in the population, what would be the new values for the mean and standard deviation? b. If every score in the population were multiplied by 3 what
asked by Nickie 
chemistry
Assignment 1 Question Consider a monohydrogen phosphate ( HPO42) and dihydrogen phosphate (H2PO4) buffer solution. [HPO42] = 0.063M [H2PO4] = 0.10M What happens when you add 1.0 ml of 0.10 M HCl to the a 99ml solution? What would the pH of the solution
asked by anonymous 
maths
A milk tanker cylinderical in shape having a diameter of 2m and height 4.2m supplies milk to the two booths in the ratio3:2 .One of the milk booths having arectangular base area of 3.96 sq. m and the other has a cylinderical vessel having diameter of 2m.
asked by Anonymous 
Legal Writing
I am asked to write and internal office memo to my supervising attorney that advises of the results of my research on a given topic and applies the law to the facts in my case. I have attached the exercise along with my draft internal memo. Can someone
asked by Ang 
Physics
A red ball is thrown down with an initial speed of 1.3 m/s from a height of 28.0 meters above the ground. Then, 0.6 seconds after the red ball is thrown, a blue ball is thrown upward with an initial speed of 24.7 m/s, from a height of 0.8 meters above the
asked by Funnyguy 
physics
A small ferryboat is 4.00 m wide and 6.00 m long. When a loaded truck pulls onto it, the boat sinks an additional 4.50 cm into the river. What is the weight of the truck?
asked by monic 
PHYSICS
Two wires have the same crosssectional area and are joined end to end to form a single wire. The first wire has a temperature coefficient of resistivity of α1 =0.00603 (C°)1 and a resistivity of 5.00 x 107Ω m. For the second, the temperature
asked by PLEASE HELP 
physics
Firemen are shooting a stream of water at a burning building. A highpressure hose shoots out the water with a speed of 24.0{\rm m}/{\rm s} as it leaves the hose nozzle. Once it leaves the hose, the water moves in projectile motion. The firemen adjust the
asked by corrina 
math
The English Alphabet has 20 letters more than one−fourth the number of letters in the Greek Alphabet. The English Alphabet has 26 letters. Which of the following equations would you use to find the number of letters, g, in the Greek Alphabet?
asked by Anonymous 
Math 9 algebra
A mechanic charges $70 an hour plus the cost of parts to repair a vehicle. The parts cost $215 for the repair on Tamara's car. A) write an expression for the total cost, C, of repairing Tamara's car for any numbers of hours, n. B) use the expression you
asked by Molly 
French
I'm stuck on these two questions regarding indirect object pronouns. for the first question would it be.. je s 'achète des gants.(à ta mère et à toi, Célia). For the second question: would it be.. Célia se achète un pantalon. (à moi)
asked by nemo 
physics
(a) Calculate the mass flow rate (in grams per second) of blood (ρ = 1.0 g/cm3) in an aorta with a crosssectional area of 2.0 cm2 if the flow speed is 35 cm/s. g/s (b) Assume that the aorta branches to form a large number of capillaries with a combined
asked by monic 
Physics
2 spheres of radii 10cm and 20cm contains charges 10microcoulomb and 20 micro coulomb respectively.they are separated by a distance 100cm.Where will the electric field be zero?
asked by Febamol Babu 
age problem (math)
Nila is now x years old. 3 years ago, her brother ricky was twice as old as she. Write ricky's age 10 years from now in terms of x. (with solution pls... thanks...)
asked by HELP HELP HELP MNHS 
business law
Fred and Wilma are neighbors. Every morning Fred walks his dog spike by Wilma's house, and almost every morning Spike poops in Wilma's yard. A city ordinance requires that dog oners must keep their dogs on a leash, but Fred never uses a leash while walking
asked by mary 
chemistry
a sample of sulphuric acid is 95.7% by mass and has a density of 1.84g/cubic cm.calculate the mass of pure H2SO4 in a 2.00L bottle and volume of acid that contain 200g of pure H2SO4.
asked by grace 
Calculus
Determine the line through which the planes in each pair intersect. a) 3x+2y+5z=4 4x3y+z=1
asked by May 
Physics
A long, thin rod (length = 4.0 m) lies along the x axis, with its midpoint at the origin. In a vacuum, a +5.0 µC point charge is fixed to one end of the rod, while a 5.0 µC point charge is fixed to the other end. Everywhere in the x, y plane there is a
asked by Amy 
Math
Rainbow Harbor Cruises charges $16/adult and $8/child for a roundtrip ticket. The records show that, on a certain weekend, 900 took the cruise on Saturday and 600 took the cruise on Sunday. The total receipts for Saturday were $12,800, and the total
asked by Bersy 
physics
A child and sled with a combined mass of 47.8 kg slide down a frictionless hill that is 7.18 m high. If the sled starts from rest, what is its speed at the bottom of the hill?
asked by Rachel Laurson 
physics
Water flowing through a garden hose of diameter 2.73 cm fills a 25.0L bucket in 1.20 min. (a) What is the speed of the water leaving the end of the hose? m/s (b) A nozzle is now attached to the end of the hose. If the nozzle diameter is onethird the
asked by monic 
Physics
A 2.1 kg ball is attached to a ceiling by a string. The distance from the ceiling to the center of the ball is 1.20 m, and the height of the room is 3.00 m. (a) What is the gravitational potential energy associated with the ball relative to the ceiling?
asked by Drew Meryll 
physics
A plane designed for vertical takeoff has a mass of 9.0 103 kg. Find the net work done by all forces on the plane as it accelerates upward at 11.3 m/s2 through a distance of 34.8 m after starting from rest.
asked by Jayde Larson 
Physics
A +2 uC and a +10 uC are 3cm apart a) Find the electrostatic force between the charges b) If the charges are brought together and touched, what would be the charge on each one? c) These spheres are then moved 3 cm apart. What would be the force between
asked by Betty 
Math
Rainbow Harbor Cruises charges $16/adult and $8/child for a roundtrip ticket. The records show that, on a certain weekend, 900 took the cruise on Saturday and 600 took the cruise on Sunday. The total receipts for Saturday were $12,800, and the total
asked by Bersy 
physics
A batted baseball leaves the bat at an angle of 26.0^\circ above the horizontal and is caught by an outfielder 355{\rm ft} from home plate at the same height from which it left the bat. What was the initial speed of the ball? How high does the ball rise
asked by anonymous 
physics
A flight attendant pulls her 66 N flight bag a distance of 318 m along a level airport floor at a constant velocity. The force she exerts is 43 N at an angle of 52° above the horizontal. (a) Find the work she does on the flight bag. (b) Find the work done
asked by Brianna Smith 
Physics
A light plane attains an airspeed of 491 km/h. The pilot sets out for a destination 785 km due north but discovers that the plane must be headed 20.5° east of due north to fly there directly. The plane arrives in 2.25 h. What was the magnitude of the wind
asked by Nicole 
Finance
Ken Braden estimates that taking some classes would result in earning $3,500 more a year for the next 30 years. Based on an annual interest rate of 5 percent, calculate the future value of these classes.
asked by JRod 
marketing
The total profit approach to evaluating possible productmarket strategic plans: a. is the best approach to use. b. cannot be used to compare possible plans unless they are very similar. c. may support a plan that is not the most profitable in the short
asked by Andrew 
statistic
In a population of exam scores, a score of X 48 corresponds to z1.00 and a score of X 36 corresponds to z –0.50. Find the mean and standard deviation for the population. (Hint: Sketch the distribution and locate the two scores on your sketch.) A
asked by Nickie 
math liberal arts
A piece of land in Ottawa with an area of 0.4 square kilometers is priced at 5600 Canadian dollars. If there are 1.358 Canadian dollars per (U.S.) dollar, then what is the price in dollars per squaremile?
asked by Anonymous 
marketing
Overall company objectives should: a. be specific. b. focus on returning some profit to the business. c. be realistic and achievable. d. be compatible with one another. e. all of the above.
asked by Andrew 
cost/managerial
andromeda company's break even point is 2,400 units. variable cost per unit is $42; total fixed costs are 67,200 per year. what price does andromeda charge?
asked by delia 
physics
The total crosssectional area of the loadbearing calcified portion of the two forearm bones (radius and ulna) is approximately 2.0 cm2. During a car crash, the forearm is slammed against the dashboard. The arm comes to rest from an initial speed of 80
asked by monic 
algebar
A rectangle is 5 times as long as it is wide. If the area is 125 square feet, find its perimeter.
asked by brenda 
physics
In a circus performance, a monkey on a sled is given an initial speed of 4.0 m/s up a 32° incline. The combined mass of the monkey and the sled is 19.1 kg, and the coefficient of kinetic friction between the sled and the incline is 0.20. How far up the
asked by Savanna A. 
BIOLOGY
What is the majority of the mass of the heart composed of? a. Endocardium b. Myocardium c. Pericardium d. Endothelium
asked by sarah 
physics
Water flows over a section of a waterfall at the rate of 5.1 104 kg/s and falls 40 m. How much power is generated by the falling water? answer in Watts thanks
asked by Lauren Miller 
physics
A spring has a force constant of 410.0 N/m. (a) Determine the potential energy stored in the spring when the spring is stretched 4.13 cm from equilibrium. (b) Determine the potential energy stored in the spring when the spring is stretched 3.06 cm from
asked by Lauren Miller 
pHYSICS
Two resistors have resistances R(smaller) and R(larger), where R(smaller) < R(larger). When the resistors are connected in series to a 12.0V battery, the current from the battery is 1.99 A. When the resistors are connected in parallel to the battery, the
asked by PLEASE HELP 
physics
What speed would a fly with a mass of 0.61 g need in order to have the same kinetic energy as a 1250 kg automobile traveling at a speed of 11 m/s?
asked by Brianna Smith 
Physics
A 7.94 nC charge is located 1.75 m from a 4.18 nC point charge. Find the magnitude of the electrostatic force that one charge exerts on the other.
asked by Ashley 
Chemistry
My Chem professor is out for the weekend and I'm confused about what the question is asking or the equations needed... A 10.0g block of pure nickel (Cp = 0.445 J/g°C) is brought to each of the temperatures below. A sealed beaker containing 15.0 g water
asked by DeeDee 
math30
1. Your city has 700 000 households, and the probability that a household has exactly one vehicle is 17/23. a) Determine the number of households that can be expected to have exactly one vehicle.
asked by alejandro 
physics
A piece of pipe has an outer radius of 4.6 cm, an inner radius of 2.8 cm, and length of 35 cm. What is the mass of this pipe? Assume its density is 8.3 g/cm3. Answer in units of k
asked by sarah 
Math
A room is 45 m x 15 m. What is the least number of rectangle tiles required to pave the floor of the room, if each tile is 50 cm x 1m?
asked by robin 
math
Which of the following problems can be solved using the equation x9=15? A. Allison is 9 years younger than her sister Pam. Allison is 15 years old. What is x, Pam's age? B. David's portion of the bill is $9 more than Jaleel's portion of the bill. If
asked by Jessica 
physics
A 51.0 kg diver steps off a diving board and drops straight down into the water. The water provides an upward average net force 1370 N. If the diver comes to rest 4.6 m below the water's surface, what is the total distance between the diving board and the
asked by TJ Cloward 
Math
Students in Mr.Tandoc's shop class made a circular railroad crossing sign for a school play. The diameter of the sign was about 4 feet. How does the diameter compare to the circumference of the sign? A.The diameter is about 1/3 of the circumference B.The
asked by Jerald 
Physics
A 80kg football player stands at the end of a uniform 8m, 50kg diving board supported as shown. Determine the forces exerted by the two supports.
asked by Kiffinee Smith 
Physics
A long, thin rod (length = 4.0 m) lies along the x axis, with its midpoint at the origin. In a vacuum, a +5.0 µC point charge is fixed to one end of the rod, while a 5.0 µC point charge is fixed to the other end. Everywhere in the x, y plane there is a
asked by Amy 
Biochemistry
Muscle Hexokinase has a lower Km for glucose than live Hexokinase They both work best on Glucose, and convert Glc>Glc6P04. Would you expect their 3D shape to be identical? If not, how different would you expect them to be? Explain your answer. Thanks!
asked by Biochemistry 
maths
A cuboidal room is 1 and 1/2 as long again as it is broad. The cost of carpeting the room at the rate of Rs.5 per m sq is Rs.480 and the cost of papering the walls with coloured paper at the rate of Rs.3 per m sq is Rs.360. Find the dimensions of the room
asked by Anonymous 
mathURGENT!!!!!!!
a certain type of candy is sold in small boxes of 8 and large boxes of 15. notice it would be impossible to buy exactly 12 candies without breaking up a box. it would also be impossible to buy 17 candies without breaking up a box. what is the greatest
asked by don 
statistic
1. A distribution has a standard deviation of 12. Find the zscore for each of the following locations in the distribution. a. Above the mean by 3 points. b. Above the mean by 12 points. c. Below the mean by 24 points. d. Below the mean by 18 points.
asked by Nickie 
chemistry
what is the equillibrium constant of each of the substance in the equillibrium when concentration of ICl was 0.75M 2ICl(g)=I2+Cl2 kc=o.12
asked by Pramod Sihag 
chemistry
what is the molarity of Cl in a 100ml solution containing 20g NaCl, 10g CaCl2, and 15g KCl
asked by oluchi 
Chemistry
The rate of a firstorder reaction is followed by spectroscopy, monitoring the absorption of a colored reactant at 520 nm . The reaction occurs in a 1.29cm sample cell, and the only colored species in the reaction has an extinction coefficient of 5700
asked by Leslie 
Physics
What is the magnitude of the force a +29 charge exerts on a +3.3 charge 48 away?
asked by Allison 
Physics
Identical points on two harmonic waves with the same wavelength (.65 meters) and frequency are separated by a distance of .15 meters. What is the phase difference between the waves?
asked by Nick 
physics
Tarzan swings on a 28.0 m long vine initially inclined at an angle of 22° from the vertical. (a) What is his speed at the bottom of the swing if he starts from rest? (b) What is his speed at the bottom of the swing if he starts with an initial speed of
asked by Rachel Laurson 
math
[2.05] Choose the equation that could be used to find two consecutive integers whose sum is 69.
asked by Anonymous 
Biology
Okay so if i have two enzyme catalyzed reactions: 1) delta g of the ES = 22kJ/mol 2) delta g od the ES = 42 kJ/mol Is this first reaction going to have a higher reaction rate because the of the negative delta g, because doesnt a negative delta g give you
asked by Cindy 
ACCOUNTING
Gardner Manufacturing Company produces a product that sells for $120. A selling commission of 10% of the selling price is paid on each unit sold. Variable manufacturing costs are $60 per unit. Fixed manufacturing costs are $20 per unit based on the current
asked by DIANE 
History
Fill in the blanks. Under the Mississippi compromise, any new states formed west of the Mississippi river and north of the Missouri's southern border line were required to be __________.
asked by Emma 
Speech 09
I had to interview someone in my class and write speech about them. I need help on how to start my speech. How to introduce the person. Are there any examples you can give me so I would read and then write my speech. Please help!!!!!
asked by Darcy 
business studies
Help me with a small business idea.
asked by kago 
Physics
If an automobile engine delivers 45.2 hp of power, how much time will it take for the engine to do 5.40 105 J of work? (Hint: Note that one horsepower, 1 hp, is equal to 746 watts.) in seconds
asked by John Dagle 
chemistry
What volume of 9.0Molarity of H2SO4 is required to react with 20.0g of NaOH?
asked by ali 
Math
It took Esteban 1 hour and a half to complete his math problems for homework. He spent 3 to 5 minutes working each problem. Which is a reasonable number of problems that Esteban completed for homework? A.10 B.12 C.15 D.20 D? Shaquille O' Neal height
asked by Jerald 
real number
How many positive factors does 62x(63^3+63^2+63+1)+1 have? (with solution pls... thanks...)
asked by HELP HELP HELP MNHS 
math
13. You can walk there in 20 minutes or less.
asked by Anonymous 
math
3 pumps, working 6 hours a day, can empy a water tank in 2 days. How many hours a day must 9 pumps work to empty the same tank in 1 day?
asked by robin 
Science
Write on Newton law of cooling and cooling collision.
asked by Peter 
Math
(x^2+y^2)^2=4(x^2y^2) Equation of a lemniscate curve
asked by Kelvin 
Chemistry
Using oxidation numbers, explain why this reaction is not a redox reaction? CaCo3 > CaO + Co2 Please help.
asked by Ted 
french
im stuck on indirect object pronouns. i don't know if for example, Je______ achète des baskets. (à mes cousins) if i have to use the verb aller? would it be Je vais leur?
asked by nemo 
Math
The Americans with disabilities act requires that wheelchair ramps have a slope no greater than 1/12 what is the minimum horizontal length a 2 foot high ramp can have ?
asked by Valerie 
Science  Radiation
A radioactive isotope, used in the agricultural industry has a half life of 8 days. On application, the radiation is emitted is measured at 12500 counts per sec (cps). If the area that it is applied to cannot be used until the radiation strength is less
asked by Manu 
Maths
if in a triangle ABC m angle A=π/2, then value of cos2 A + cos2 B + cos2 C =?
asked by Anand 
math
Marty ate 1/4 of his pizza and Luis ate 1/3 of his pizza. Marty ate more pizza than Luis. Is that possible? Explain.
asked by ted 
chemistry
suppose u r given a conc soln of hcl which is known to be 37% hcl & has a soln density of 1.19g/ml. What is the molarity and molality of hcl in this soln
asked by oluchi 
Chemistry
The rate of a firstorder reaction is followed by spectroscopy, monitoring the absorption of a colored reactant at 520 nm . The reaction occurs in a 1.29cm sample cell, and the only colored species in the reaction has an extinction coefficient of 5700
asked by Leslie 
Analytic Geometry
Find the equation of a circle passing through (3,7) and tangent to the lines x3y+8=0 and y=3x. Please Help me solve this. Explain it to me slowly cause I am not really good with this
asked by Lea 
physics
While standing on a bridge 30.0 m above the ground, you drop a stone from rest. When the stone has fallen 3.20 m, you throw a second stone straight down. What initial velocity must you give the second stone if they are both to reach the ground at the same
asked by brizett 
physics
A person lifts a 4.6 kg cement block a vertical distance of 1.43 m and then carries the block horizontally a distance of 10.50 m. (a) How much work is done by the person in the process? (b) How much work is done by gravity in the process?
asked by Jayde Larson 
Analytic Geometry
Find the equation of a circle passing through (3,7) and tangent to the line x3y+8=0. Please, How do I solve this? Help me
asked by Lea 
Physics
Forces of 11.3N north, 19.1N east, and 14.5N south are simultaneously applied to a 4.12kg mass as it rests on an air table. What is the magnitude of its acceleration? What is the direction of the acceleration in degrees? (Take east to be 0 degrees and
asked by Dan 
Analytic Geometry
Find the equation of a circle passing through (3,7) and tangent to the line x3y+8=0. Please, How do I solve this? Help me
asked by Lea 
Math
((4sin(atan(4/3))4sin(0)))(3cos(atan(4/3))(3cos(0)))+((3cos(pi/2)(3cos(atan(4/3))))(4sin(pi/2)4sin(atan(4/3))))+((3cos(4pi/5)(3cos(pi/2)))(4sin(4pi/5)4sin(pi/2)))
asked by Jim 
math
USING FORMULAR METHOD SOLVE D EQUATION(M3)²=121
asked by Anonymous 
Math
In this diagram, one person is standing at point A, one person is at point B, and both are looking at a helicopter at point C. The helicopter is 1000 feet above the ground on which the two people are standing. A. If the angle of elevation at point A is 60
asked by PVC 
Math
Give the domain of the following functions. Give your answer in interval notation. a) f(x)= 5x2/x^25x+6 and b) square root of 52x
asked by Sam 
marketing
The economic environment a.of an individual country has little effect on other countries. b. refers to the application of science to convert resources to output. c. includes changes in interest rates and inflation. has little impact on an organization's
asked by Andrew 
marketing
Regarding the current legal environment facing U.S. marketing managers: a. state and local laws vary but contain important regulations. b. the focus has shifted from let the buyer beware to let the seller beware. c. product safety is now controlled. d.
asked by Andrew 
marketing
Few people in Europe diet. So the same soft drink that PepsiCo sells in the U.S. under the brand name of Diet Pepsi is sold in England under the brand name of Pepsi MAX. This is an example of which part of the external market environment? a. Competitive b.
asked by Andrew 
marketing
When a local bank in Kansas City makes loans to its small business customers, it charges them an interest rate for borrowing money. Interest rates are part of the ____________ environment. a. cultural and social b. economic c. legal d. political e.
asked by Andrew 
Math
Find the matrix A such that 1 0 −1 3 A = −1 −8 2 11 . Hint: Let A = a b c d A=
asked by Bersy 
algebra
Determine whether or not the relation is a function. (3,6), (2,7, (1,8), (0,9)
asked by samuel 
science
Lipids: Not a polymer because _ __x's energy than carbs Saturated= Unsaturated= Nucleic Acids: RNA= DNA= Carbohydrates: Building blockks
asked by Katie 
Chemistry
Air in the vicinity of a local power station contains 8.8x10^4 gm^3 SO2. What volume of 0.001moldm^3 Iodine solution would be required to react with a solution obtained from 200dm^3 of contaminated air? The equation given is SO2 + I2 + 2H2O ==> H2SO4 +
asked by Matt 
Algebra 2 ..........
Solve for x. 1/2(x2)^3+1=0 Also please teach me how to factor cubic polynomials.
asked by Anonymous 
Biochemistry, Biology, Chemistry
An enzyme works on two substrates, S1 and S2. Its Km for S1 is 100mM and its Km for S2 is 10mM. Based on this information, answer the following questions: 1. For a given [E] will it have a higher Vmax for S1 or S2? Explain your answer 2. Is S1 or S2 a
asked by Biochemistry 
ANT101: Introduction to Cultural Anthropology (ACS
The Demographic Transition Model: (Points : 1) depicts how populations change over time. is based on the historical experience of the Third World. predicts the world’s population in the year 2002. supports the overpopulation perspective.
asked by Anonymous 
fractions
what is 1/2, 3/8and 1/4 from least to greatest
asked by fareeda 
Calculus
The height (in feet) at time t (in seconds) of a small weight oscillating at the end of a spring is given below. h(t) = 0.2 cos(2t) (a) Calculate the weight's average velocity over the time intervals [1, 2] and [5, 7].
asked by Lindy 
Math help PLEASE
Sole this equation 5x+9=3x+41 what does x=
asked by Dave 
Physics
If Jenn walks at a speed of 1.75 m/s for a total of 3.0 minutes, how far has she travelled?
asked by Anonymous 
Math Help please
5x+9=3x+37 x=
asked by Dave 
physics
What is an example of an object with great momentum? Why does it have great momentum?
asked by Anonymous 
Algebra 2 ..........
Solve for x. 1/2(x2)^3+1=0 Also please teach me how to factor cubic polynomials.
asked by Anonymous 
Algebra 2 ..........BOBPURSLEY
SO IF Y=0 what would x be on the graph. Please.. i do not get this...
asked by Anonymous 
art
do you know name of this picture? it is dragon flying and kind of holding the flag which is of united states and it has six flags. and up it has curve. it is symbol please help me.
asked by max 
math
in a mixture of water and 1/4 is sand.write down the ratio of water to sand
asked by payal 
physics
A vector has a magnitude of 18.0 cm and makes an angle of 103.0° with the positive xaxis.
asked by Anonymous 
science,chemistry
constract the neutralisation rxn of calos antacid and stomach acid,and balance it?
asked by Haemone singo 
Mathematics
12x0=
asked by Adaobi okolie 
Physics
When speaker A is working the sound intensity at a particular location is 85 dB. When speaker B is working (without speaker A), it is 80 dB. What will it be if both speakers are working together?
asked by Nick 
Physics
a tuning fork of frequency 500 Hz is rotating on the edge of a disk of radius 1.2 meters. (a) If the disk turns at a rate of 40 rev/min, what are the maximum and minimum frequencies heard by the listener? (b) To what positions of the tuning fork do these
asked by Nick 
math30
1.To play a game, a die is rolled to see who plays first. Four players are going to play the game. What is the probability that at least two people roll the same number? Express your answer to the nearest tenth of one percent
asked by alejandro 
Chemistry help
Write a descriptive text and a word equation on how silicon is extracted from earth's crust' .
asked by Maya 
chemistry
What volume of 0.010M silver nitrate will exactly react with 20ml of 0.0080M socium chloride solution?
asked by bliss 
Math
Ernest earns $550 each month working as a medical assistant at the local hospital. Which of the following can be used to find m, the amount of money Ernest earns in two years? A.1/550=m/2 B.550/1=m/24 C.2/m=1/550 D.1/550=12/m B?
asked by Jerald 
Algebra
If (x+3)(x2)(x+1)=(x+2)Q(x)+(x+3)(x2) (with solution pls... thanks)
asked by HELP HELP HELP MNHS 
Math
Give the domain of the following functions. Give your answer in interval notation. a) f(x)= 5x2/x^25x+6 and b) square root of 52x
asked by beanstalk1 
math
your company produces designer dogleashes. the marginal costs are $4.50 per leash and each leash is sold for $12.00. You need to produce and sell 75 dog leashes per month in order to break even. Based on this information, what are your monthly fixed
asked by beanstalk1 
math
CONSTRUCT BY COMPLETING D SQUARE METHOD:5 ND ¾
asked by NELLI ABUBAKAR 
biology
1. discuss the mechanisms that organisms undergo to accomplish morphogenesis 2. Describe the contributions of drosophila and nematodes in advancing understandings of development
asked by Nick 
chemistry
Why does the compressed gas leaving the propane tank cause the temperature to drop around the valve?
asked by Ashely 
science
How many amino acids are there in protien
asked by Katie 
Math
your company produces designer dogleashes. the marginal costs are $4.50 per leash and each leash is sold for $12.00. You need to produce and sell 75 dog leashes per month in order to break even. Based on this information, what are your monthly fixed
asked by Sam 
accounting
Can uot help me with journal entries
asked by karen 
Algebra 2
How would you solve the following I'm stumped.. 1. 2x^2(squared)=304x 2. X^3(cubed)+8x=6x^2(squared) Thanks!
asked by Kelsey 
math
find the slope of the given line if it is defind. the line through (2,5) and (0,8) please show work
asked by jackie