Questions Asked on
October 19, 2011

chemistry
A wooden object from a prehistoric site has a carbon14 activity of 10 counts per min.(cpm) compared to 40 cpm for new wood. If carbon14 has a half life of 5730 years what is the age of the wood? Please get me started. Thank you
asked by Connie 
Geography
What is the relation between geography and chemistry
asked by RUTH 
Finance
Nico Trading corporation is considering issuing longterm debt. The debt would have a 30 year maturity an a 10 percent coupon rate. In order to sell the issue, the bonds must be underpriced at a discount of 5 percent of face value. In addition, the firm
asked by matt 
Probability
Of 500 employees, 200 participate in a company's profit sharing plan(P), 400 have major insurance coverage(M), & 150 employees participate in both programs. Construct a Venn diagram and find out the probability that a randomly selected employees a) will be
asked by Jean 
chemistry
A patient receives 3.0 mL of a solution containing technetium99m for a breast image. If the activity of the technetium99m is 9.5mCi/mL what is the dose received by the patient? Answer Choices are: a)29mCi b)3.2mCi c)320uCi d)28.5mCi So I times 3.0mL *
asked by Connie 
calculus
A car leaves an intersection traveling east. Its position t sec later is given by x = t2 + t ft. At the same time, another car leaves the same intersection heading north, traveling y = t2 + 3t ft in t sec. Find the rate at which the distance between the
asked by sal 
statistics
Five percent of all items sold by mail order company are returned by customers for a refund. Find the probability that, of two items sold during a given hour by this company, a) both will be returned for a refund b) neither will be returned for a refund
asked by Mikey 
physics
A 300 lb bungee jumper wants to jump from the top of a 230 ft high bridge and be able to just touch the water below (Part A figure) . Given that the bungee cord has a spring constant of 11.1 lb/ft, what should the bungee cord's relaxed length, l, be for
asked by HELP!!! 
physics
If your boat weighs 1600 N, how much water will it displace when it’s floating motionless at the surface of a lake?
asked by Anonymous 
Math
Round 5,024 to the nearest thousands
asked by Zachary 
Chem
A radiation lab orders 64uCi of P32. After 42 days the activity of the sample is 8.0uCi. What is the life of P32? Thanks
asked by Emily 
Physics
Work of 730 J is done by stirring an insulated beaker containing 80 g of water. What is the change in the temperature of the water? Please show calculation
asked by BOB 
physics
A bobsled slides down an ice track starting (at zero initial speed) from the top of a(n) 165 m high hill. The acceleration of gravity is 9.8 m/s2 . Neglect friction and air resistance and determine the bobsled’s speed at the bottom of the hill. Answer in
asked by shea 
vocab
The living room looked immaculate except for a lump under the carpet, an gaunt
asked by me 
Super Easy Math Question
3x^212x+11=0 Solve for x.
asked by Luke 
chemistry
Phosphorus trichloride gas and chlorine gas reacts to form phosphorus pentachloride gas: PCL3(g) +CL2(g) = PCL5(g). A vessel is CHARGED WITH A MIXTURE OF PCL3(g) and CL2(g), which is allowed to equilibrate at 450K. At equlibrium the partial pressures of
asked by MIndy 
Calculus
find the dy/dx of s(t)= (4/3pi)sin3t+(4/5pi)cos5t
asked by Millie 
PYSICS
The upward normal force exerted by the floor is 600 N on an elevator passenger who weighs 610 N. What is the reaction force to the upward normal force exerted by the floor? What is the reaction force to weight of the passenger? What is the magnitude of the
asked by Ruth 
Chemistry
Consider the chemical reaction C + H2O > CO + H2 How many liters of hydrogen gas are formed From the complete reaction of 1.07 mol of C? Assume that the hydrogen gas is collected at a pressure of 1.0 atm and the temperature of 315K So I'm looking for
asked by Monique 
Physics
A soccer ball is kicked off a bridge with a height of 36 m. The ball travels 25 m horizontally before it hits the pavement below. What was the soccer ball’s speed when it was first kicked?
asked by PIE 
chemistry
Write the balanced chemical equation for the reaction of sodium bicarbonate with aqueous acetic acid to produce carbon dioxide, water, and sodium acetate. Follow the example set by the sodium bicarbonate.
asked by Rodney 
Physics
Two Diamonds begin a free fall from rest from the same height, 1.0 s apart. How long after the first diamond begins to fall will the two diamonds be 10m apart? Please help, I am very confused with this question, I have completed all other but I am unsure
asked by Cassie 
Physics
Multiple choice. The airbag in a car works in a collision by . . . a. increasing the time of the impact to the person. b. reducing the impulse to the person. c. reducing the momentum of the person. d. increasing the force on the person. A cannonball shot
asked by Lisa 
chemistry
The principal component of many kidney stones is calcium oxalate,CaC2O4. A kidney stone recovered from a typical patient contains 8.50×10^20 formula units of calcium oxalate. How many moles of CaC2O4 are present in this kidney stone?
asked by shannon 
Pre Calc
an open box is to be formed by cutting squares from a square sheet of metal that is 10 cm on a side and then folding up the sides. What i the maximum volume of the box?
asked by Rusty Wallace 
Calculus
A trough is 12 ft long and has ends that are isosceles triangles that are 1 ft high and 1.5 ft wide. If the trough is being filled at a rate of 11 cubic feet per minute, how fast is the height of the water increasing when the height is 7 inches?
asked by Anonymous 
Calculus
A lighthouse is located on a small island 4 km away from the nearest point P on a straight shoreline. Its light makes 3 revolutions per minute. How fast is the beam of light moving along the shoreline when it is 1.7 kilometers from P ?
asked by Anonymous 
Math
66 2/3percent of what number is 54????????????
asked by Jahnay 
pyshics
A small rock moves in water, and the force exerted on it by the water is given by the equation Fd = kv, where k is a constant. The terminal speed of the rock is measured and found to be 2.0m/s. The rock is projected upward at an initial speed of 6.0m/s.
asked by Timothy 
maths
Find the first quadrant area under y = e 2x
asked by Pratibha 
Math
What is the median of the following set of numbers? 57, 54, 52, 54, 50, 49, 53, 58, 48 ?
asked by Zaria Peterson 
English
Read the following passage out loud, and then answer questions 5–7. “Its pendulum swung to and fro with a dull, heavy, monotonous clang; and when the minutehand made the circuit of the face, and the hour was to be stricken, there came from the brazen
asked by Laci 
Finance
____ in the beta coefficient normally causes____ in the required return and therefore ____ in the price of the stock, all else remaining the same. A. An increase, an increase, an increase B. An increase, a decrease, an increase C. An increase, an increase,
asked by matt 
algebra
If your teacher tells you to do questions 6 through 19 in your math book for homework, how many questions is that?
asked by katelyn 
Physic
A 55kg female bungee jumper fastens one end of the cord (made of elastic material) to her ankle and the other end to a bridge. Then she jumps off the bridge. As the cord is stretching, it exerts an elastic force directed up on her. Calculate her
asked by Michelle 
math
Dtermine an equation, in simplified form, for the family of cubic functions with zeros 2 and 4+sqrt. 3.
asked by justme 
Physics
The conducting rod ab shown below makes frictionless contact with metal rails ca and db. The apparatus is in a uniform magnetic field of 0.855 T, perpendicular to the plane of the figure. The length L of the rod is 25 cm. (a) Find the magnitude of the emf
asked by chloe 
chemistry
calculate the density of oxygen,O/2 under each of the followig conditionsstp,1.00 atm and 35.0 celsius?
asked by tony 
Physics
A projectile is fired with an initial speed of 28.0 m/s at an angle of 65 degrees above the horizontal. The object hits the ground 9.5 seconds later. a) How much higher or lower is the launch point relative to the point where the projectile hits the
asked by Sara 
C++ program
Create a source code that will prompt for recive and total a collection of payroll amounts entered at the terminal untill a sentinel amount of 999 is entered. Here is what i have so far i know not much but am not that great at this class. #include #include
asked by kasey 
Short essay proofreading check
Eric Yiadom is a volcanic tempered basketball player whose attitude often leads others to malign him. He is tall and slim with dark olive skin and has short red hair as hot as his temper. On the court he lacks good sportsmanship. Always causing a tantrum
asked by New 
Physics
A particle of mass 5 kg is acted upon by a horizontal force of magnitude 16 N for 8 seconds, in which time it moves from rest until it is traveling with a speed v m/s. The particle continues to move with this speed for the next 15 seconds. it is brought to
asked by Joshua 
physics
A rubber band of relaxed length 6.3 cm stretches to 10.2 cm under a force of 1.0 N, and to 16.5 cm under a force of 2.0 N. Does this rubber band obey Hooke's Law?
asked by May 
English
Can you please check these sentences, too? Thank you very much for your invaluable help. 1)In his panegiric on beauty Lord Henry says that when people grow old, they become hollowcheecked, dulleyed and sallow. 2) The corrupted image on (or in) the
asked by Henry2 
Chemistry
a 1.00mol sample of phosphorus pentachloride placed in 10.0L reaction flask and allowed to come to equilibrium at 250 degrees celsius; PCL5(g) = PCL3(g) Cl2(g) if the amount of chlorine in the equilibrium mixture is0.470 mol, calculate (a) the
asked by MIndy 
chemistry ap!!!
Neutron diffraction is an important technique for determining the structures of molecules. Calculate the velocity of a neutron needed to achieve a wavelength of 0.989 Å. i used the equation and got 4.37, but its not right! pleas help someone
asked by kela 
math
a farmer can afford 8000 square meters of fence and would like to come up with the best way to use this fence, such that:  he wants all the pens to be of the same rectangular shape.  he wants to give each calce of his farm as much space as possible.  he
asked by wissam 
algebra
angela ate at the same restaurant four times each time she ate a salad and left a 5 dollar tip she spent a total of 54 dollars write and solve an equation to find the cost of each salad
asked by drew decker 
Please helpMath
Please answer these problem for me.Thanks so much. 1. Border's Bookstore ordered 800 art books. On verifying the order, only 160 books were actually received. The percent of the order missing was: 2. The net price equivalent rate of 9/15/18 is: 3. If the
asked by Angel 
5th grade math
how do i write a realworld problem where you would have to multiply 120 and 75
asked by Anonymous 
physics
An aircraft carrier operating in the Persian Gulf is about to receive aircraft. There is a wind from the north at 10kts. In preparation to receive aircraft. the Captain orders the carrier to alter its heading to bring the ship directly into the wind and
asked by Anonymous 
physics
The pilot of a plane looks at her speedometer to see that she is traveling at 165 km/h and she is heading north. An observer on the ground looks at the plane and it appears to be going 145 km/h. What is the velocity of the wind that is affecting the plane?
asked by Joshua 
Algebra 2
You have made scores of 81, 76, 82 on Three quizzes. What is the least you can make on this quiz to have an average of at least 80? I tried solving this problem, but them got lost. How do i solve it?
asked by Anonymous 
exponential and radical functions
write a compound interest function. then find the balance. $4000 invested at a rate of 4% compounded quarterly; 3 years
asked by Anonymous 
Finance
Company Ford Coupon11.0 MaturityJuly 31,2009 Last Price65.50 Last Yield ? EST Spread 104 Est UST 10 VOL.5,100 Based on the table, what is the last yield for this bond?
asked by matt 
owning
The __________is the contract that seals the deal when you uy a car. A.loan application B.warranty C.loan agreement D.sales agreement i got C but my secong answer if not C it will be B.which on is write ??
asked by Ciara 
Fighting Style
Which fighting style is mainly used in modern day films and why? With Bruce Lee creating his own style of martial arts, what research did Bruce Lee had to do for his his style Jeet Kun Do to be successful and does it still exist in modern times? Does the
asked by Anon 
Chemistry
a chemist discovered an ore and analyzed its composition to contain 2% iron, 5% phosphor, and 93% sodium. What is the correct formula?
asked by Elijah 
Chemistry
a chemist discovered an ore and analyzed its composition to contain 2% iron, 5% phosphor, and 93% sodium. What is the correct formula?
asked by Elijah 
accounting
Explain the differences between a proprietorship, a partnership, and a corporation in 200 to 300 words. Why would an entrepreneur want to choose one over the other? If you were starting a new business, which would you choose? Explain why.
asked by Anonymous 
Math
Why is estimating before you subtract a good idea?
asked by Nelson 
water trement by H2S
ho can i doud in farst plan
asked by mubark 
algebra 1
N decreased by 12 is greater than or equal to 11?
asked by Rachael 
com/105
Can anyone guide me in the right direction, as to where I can find a few websites for Healthy Eating?
asked by Sade C 
Calc
let theta (in radians) be an acute angle in a right triangle, and let x and y, respectively, be the lenghts of the sides adjacent and opposite ?. suppose also that both x and y vary with time
asked by Raj 
algebra 1
N decreased by 12 is greater than or equal to 11?
asked by Rachael 
physics
A person pushes a 11.3kg shopping cart at a constant velocity for a distance of 19.4 m on a flat horizontal surface. She pushes in a direction 29.2 ° below the horizontal. A 44.6N frictional force opposes the motion of the cart. (a) What is the
asked by mica 
chemistry
What volume of titrant would be required to reach the equivalence point in the titration of 25.0 mL and 0.825M CH3NH2 with 1.00 M HCL?
asked by Anonymous 
Math
Simplify a)(1ã3)(2+ã6)(5+ã2) b) 5ã45+ã52+3ã125
asked by Hannah 
geometry
Hello, Can some one check my work. I just want to make sure I answered the questions correctly. Thanks, Nikki 1) Every rhombus is a parallelogram. True 2) Every parallelogram is a rectangle. False 3) Every rectangle is a square. False 4) Every square is a
asked by nikki 
Algebra 2
Find three consecutive odd integers whose sum is less than 20 but greater than 10. I am confused how to answer this.
asked by Anonymous 
History
Did the Elastic Clause justify acts such as Hamilton's excise tax and the Bank of the United States or Jefferson's Louisiana Purchase?
asked by Melissa 
lighthouse stuff
I have a project on the Bodie Island lighthouse and I need the basics and other stuff. PLEASE HELP ME!! Yours AWESOMELY, lizzy
asked by lizzy 
physics
A container of hot water at 80 deg C cools to 79 deg C in 15 seconds when it is placed in a room that is at 20 deg C. Use Newton's law of cooling to estimate the time it will take for the container to cool from 70 deg C to 69 deg C.
asked by Dave 
Chemistry
Okay, so here's the question: A 60.0 mL sample of 0.100M CH3COOH is titrated with 0.200M? What is the pH at each of the following points... After 30.0 mL of NaOH: This part...I'm getting confused on. I keep getting a number close to 13 and my friend is
asked by Anonymous 
Philosophy 105
premises
asked by dada 
math
let θ(in radians) be an acute angle in a right triangle, and let x and y, respectively, be the lenghts of the sides adjacent and opposite θ. suppose also that both x and y vary with time how are dθ/dt, dx/dt, and dy/dt related?
asked by Raj 
Finance
Consider the following two securities X and Y X y Return 20.0% Return 10.0% Standard Deviation 20.0% Standard Dev 30% Beta 1.50 Beta 1.0 Riskfree asset Return 5.0% Using the data from the table, what is the portfolio expected return and the
asked by matt 
science
what type of ques comes in all kumaon exams?
asked by nihita 
physics
As a sky diver falls faster and faster through the air (before reaching terminal speed), does the net force on her increase, decrease or remain the same? Does her acceleration decrease, imcrease or remain the same?
asked by fuzzy 
physics
A ball of mass 0.4 kg, initially at rest, is kicked directly toward a fence from a point 20 m away, as shown below. The velocity of the ball as it leaves the kicker’s foot is 18 m/s at angle of 35 degrees above the horizontal. The top of the fence is 4 m
asked by jes 
science
Determine the phenotype,give the genotypes that are possible for patrick: A tall head (T) is dominant to short (t) Tall= Short=
asked by rene 
Hum Media 176
What responsibilities do media outlets have when reporting news? Consider issues such as privacy, technologies, quality in reporting, and biases.
asked by Wonk 
Physics
A block of mass 2.00kg starts at rest at the top of a ramp that is inclined delta= 40.0 degrees with the horizontal. The block slides down the ramp a distance of 3.60 meters where it contacts a relaxed spring with K=300N/m. If the coefficient of kinetic
asked by Daniel 
English
Draw a monster swimming under the boat. Then write a story about catching it. You should write at least 6 sentences.
asked by Krish 
pythagorus theoram
the two legs of a right 6triangle are equal and the square of its hypotenuse is 50.find the length of each legs
asked by swathy 
physics
After a jump, a skydiver reaches terminal speed in 10 seconds. Does he gain more speed during the first second of fall or the ninth second of fall? which of these two seconds (1st or 9th) will he fall the greater distance?
asked by Rich 
Science
Can you give examples of human representation about the waves in the ocean?
asked by Washington 
english
a common fary tale motif found in the white snake is: a)references to the bible b)items or events occurring in threes c)references to real people or events d)the dialect of the charactwers
asked by karen 
English
Could you please check these sentences? I urgently need them. 1) Decadent writers (the Aesthetes is possible?) fostered (??) the ideal of the Wildean dandy, a member of aristocracy who demanded absolute freedom and despised the Victorian values of work and
asked by Henry2 
Help Math
x² – 35 = 2x how do I solve this?
asked by katie A 
trig
what angle in degrees am i if the following is true: sin t > cos t if i were in quadrant three, sin t=cos t
asked by michal 
Physics
A pure copper penny is slid along a steel counter top. If the coefficient of kinetic friction between the copper and the steel is 0.36, what is the magnitude of the penny's acceleration?
asked by Sammy 
chem help
if 20 ml of .025M Formic acid is combined with 30 ml of distilled water and titrated with .10 M NaOH. What is the theoretical endpoint (equivalence point)
asked by Jenna 
Math
How would u say 8042176 in words?
asked by Tyesha 
English
I forgot to add the following sentences. Thank you. 1) Sybil is Dorian's love interest (I need to check this). She is an actress who belongs to a poor family (who was born into a poor family). 2) She is no longer an artist at the eyes of Dorian. In
asked by Henry2 
Math Help
s^26+6x+3=6 how do I solve this?
asked by katie A 
geometry
if ef=2x6 fg=3x9 and eg=25 what is the value of x ef and fg
asked by mc3 
math
10 to the 99 power = ? How do you come to the answer =1?
asked by Rob 
Health
49. Depressants are especially dangerous because a. at high doses, the user may be at a risk for a coma b. longterm use can lead to chronic bronchitis c. it causes seizures d. its effects on the body can go undetected C? Thanks MC
asked by mysterychicken 
physics
A mass of 0.04 kg is attached to a cord passing through a small hole in a frictionless, horizontal surface. The mass is initially orbiting with speed 4.9 m/s in a circle of radius 0.4 m. The cord is then slowly pulled from below, decreasing the radius of
asked by will 
math
how do you simplify 11249 divided by (7+7)times 82 squared
asked by diego 
Algebra help
Find each percent of change. Describe the percent of change as an increase or decrease. Round to the nearest tenth if necessary. 15lbs to 18lbs $38 to $65 125lbs to 143lbs
asked by Brianna 
Critical Thinking
Determine whether the arguments are valid or invalid, and explain your answer in each case. 1) If anything is a trout, then it's a fish. A dolphin is not a fish. Therefore, a dolphin is not a trout. (More statements to come...)
asked by Alex L. 
Calculus
Find the equation of the tangent to the curve x^2+y^2=25 at (3,4). I'm really confused on how to get the answer, someone please help
asked by Michael 
Chemistry
CO2(g) + 2 NH3(g) CO(NH2)2(s) + H2O(g) What volumes of CO2 and NH3 at 193 atm and 450.°C are needed to produce 2.54 kg of urea, assuming the reaction goes to completion?
asked by Nicholas 
Calculus
Find the equation of the tangent to the curve y=sin^1 (1/x) at x=2. Please help!
asked by Michael 
English
Does a sentence start with a capital letter?
asked by Mad(: 
Math
How to convert 19/20 into percent
asked by Leslie 
Math 101
Suppose you have a cookie stand, and when you charge $3 per cookie box you sell 250 boxes. But when you raise your price to $4 you only sell 120 boxes. a. Write an equation for the number of boxes you sell as a function of the price you charge. b. Denote
asked by Ann 
math
Vin paid $60 for 4 new DVDs. His friend Samuel paid $78 for 6 new DVDs. Who got a better deal?
asked by julia 
chemistry 110
in regards to conductivityhow is a substance/solute classified as strong, weak or nonelectrolyte
asked by donna 
physics
what is net force acting on the ball after attaning terminal velosity?
asked by rahul 
SCIENCE
How does waves deposit?
asked by Ana 
math
The area of a rectangular floor is 72 ft2. The length of the floor is 1 ft more than 3 times the width. How wide is the floor (rounded to the nearest whole number)?
asked by kate 
algebra
If 3 tickets in Japan, plus 2 tickets in Switzerland cost $79.50, and 3 tickets in Switzerland plus 2 tickets in Japan cost $75.30, how much is the average ticket in each country?
asked by kris 
physics
A ball is dropped from the initial height h1 above the concrete floor and rebounds to a height of equal to 60% of the initial height h1. What is the ratio of the speed of the ball right after the bounce to the speed of the ball just before the bounce? This
asked by Anonymous 
calculus
when working with composite functions, does fog=gof? how do i create two functions,f(x) and g(x) to show that this statement is either true or false.i need to explain my reasoning
asked by ayotal 
Algebra
I need help with this problem: 3/4 + 5/4 + 1/4 = Thanks
asked by Robinson 
Maths
the pages in jacks book are numbered from 1 there are 555 didgits that these numbers add up to, how many pages in the book?
asked by Anonymous 
English
his is being graded along with this poem (I KNOW IT'S LONG BUT DON'T BE SCARED TO READ IT. I NEED THE COMMENTS): When nothing else remains, I want to know if you’ll stand by my side. If you’ll be the light of my path when the sun shuts down. I want to
asked by Jahnay 
math
number less than 200 sum of the digit is 6 product of the digit is 0 each factor of 75 is its factor too?
asked by undertaker 
Chemistry
A1.367g sample of an unknown organic compound is combusted with oxygen to give only 1.459 g H2o and 3.055 g of Co2. What is the empirical formula of the compound?
asked by Olga 
Math
Draw Base Ten Blocks to show the number five hundred fifteen.
asked by Sam 
5th grade math
How do you divide 836 by 22, using compatible numbers? Is there a quick way to figure out the compatibility?
asked by Maria 
5th grade math
How do you divide 836 by 22, using compatible numbers? Is there a quick way to figure out the compatibility?
asked by Maria 
Can somehelp me with this ASAP plz?!?!?! Stats
For a particular sample of 63 scores on a psychology exam, the following results were obtained. First quartile = 57 Third quartile = 87 Standard deviation = 9 Range = 51 Mean = 72 Median = 72 Mode = 98 Midrange = 57 I. What score was earned by more
asked by Jen 
algebra
what is the degree of the polynomial 4x^2  6x + 1?
asked by tracy 
Science
Where was technetium first synthesized?
asked by Kanadia 
Calculus
How do you integrate 3∫(1)/(x²+1)² dx ? Thank you!
asked by Erica 
Ochem
A student needed to determine the percent composition of a mixture that contained fluorene and benzoic acid. The student took 283 mg of the mixture and used the extraction method to separate the components. Then both compounds were recrystallized and
asked by Lindsay 
physics
suppose a plane drops water from 1024 feet. how many seconds will it take for the water to hit the ground?
asked by grant 
Physics
How much kinetic energy does a 1 kg ball have if it has a velocity of 10 m/s? a. 100 J. b. 50 J. c. 10 J. d. 5 J. A ping pong ball and a golf ball move with the same kinetic energy. Which is moving fastest? (golf balls are heavier than ping pong balls). a.
asked by Trinh 
Essay proofread Final
Eric Yiadom is a hotheaded volcanic tempered basketball player whose attitude often leads others to malign him. He is tall and slim with dark olive skin and has short red hair as hot as his temper. On the court he lacks good sportsmanship. Deliberately,
asked by New 
algebra
evaluate and leave the solution in scientific notation: (2 x 10^4)(5.1 X 10^2)
asked by tracy 
algebra
what is the best description of 4x^2  6x + 1? monomial,binomial, trinomial,or polynomial
asked by tracy 
4th grade math
364 plus 519 round each number the greatest place value to estimate the sum of:
asked by Von 
Vocabulary
Hello Jiskha, I wanted to know the meaning of the word BRACE, & how to use it in our daily Vocabulary. Thanks in Advance.
asked by Zenit 
Writing/grammar
________ stories seemed unbelievable. A. Survivors B. Survivor's C. Survivors' D. Survivors's
asked by Stephanie 
Algebra
What is the 20th term in the following arithmetic sequence? 1/2, 1, 3/2, 2
asked by Alexis 
math
Lcm of 2 and 3
asked by Bri 
chemistry
What is the number of moles of NaOH in 1.91 mL of a 872.25 molar solution?
asked by chels 
Physics
Two objects are connected by a light string that passes over a frictionless pulley, and two objects are on either side of the string. There is a hanging object off the vertical side of the incline weighing 10.0 kg. The 3.50 kg object lies on a smooth
asked by JT 
Arthimetic
The following sequence is arithmetic. 2, 2, 2, 2, 2, True or False I believe it's false
asked by Nessa 
Geometry
Given that ABC XYZ, mA = 40, and mC = 55, find mY.
asked by Sydney 
English
I have one sentence that has to be made into a paragraph. "Using Agencies in your Area" HOw in the world can I do that?
asked by Ebony 
dividing with polynomials
solve by using polynomial division(16ab^3c10ab^2c^2+12a^2b^2c/(4a^2b) i always get 4b^22b+3b+2c^3/4a^b
asked by Anonymous 
chemistry
Need the formula to figure out the answer to question calculate the mass in grams of 4.08*10 negative 8 mol of neon
asked by Barbara 
physics
A container of hot water at 80 deg C cools to 79 deg C in 15 seconds when it is placed in a room that is at 20 deg C. Use Newtons law of cooling to estimate the time it will take for the container to cool from 70 deg C to 69 deg C.
asked by Dave 
pre algerbra
how do you do this problem5(k7)k+7
asked by kim 
home economics
Examples of cooking
asked by Mighty 
Biology
What is Parkinson's & Alzheimer's disease? Explain each based on their causative agent,means of transsmission,prevention&control.
asked by Please help me... 
algebra
Can someone simplify this equation: 6(52z)+5z=8z3(163z) Please help, show all your work.
asked by Cheryl 
Chemistry
what will be the final temperature if 2000g of copper at 95 degrees loses 10 kcal of heat?
asked by Danielle 
biology
List 2 ways in which prokaryotic and eukaryotic cells are alike and 2 ways in which they are different. Is this correct? Alike= cell membrane and DNA Different=ribosomes and mitochondria
asked by Ty 
Stats
For a particular sample of 63 scores on a psychology exam, the following results were obtained. First quartile = 57 Third quartile = 87 Standard deviation = 9 Range = 51 Mean = 72 Median = 72 Mode = 98 Midrange = 57 I. What score was earned by more
asked by Jen 
Socials  World War I
Hey, could someone please give me some documentary links telling about the world war I? The teacher also showed us this documentary in class, and I was trying to look for it, but I cant find, I think it was called Canada in World War I. And I had some
asked by Mysterious 
Algebra
I need assisatnce with this. I do not want the answer I just want some guidence on how I should start it. The width of a rectangle is 5 ft, its length is (3x+2) ft, and its area is 75 ft². Find x
asked by Liz 
algebra
An algebra book weighs 6 oz less than twice as much as a grammar book. If 5 algebra books weigh the same as 8 grammar books, how much does an algebra book weigh?
asked by Anonymous 
statistics
There are 44 mathematics major and 163 computer science majors at the college. How many ways are there to pick 2 representatives, so that one is a mathematics major and the other is a computer science major?
asked by tj 
Physics
A tennis player hits a ball 2.0 m above the ground. The ball leaves his racquet with a speed of 15.0 m/s at an angle 5.5 degrees above the horizontal. The horizontal distance to the net is 7.0 m and the net is 1.0 m high. By how much does the ball clear
asked by Michelle 
American Literature
In Patrick Henry's Speech To the Virginia Convention, what would be a weak argument in his speech? I know Give Me Liberty or Give Me Death would be a powerful argument as well as The War Has Actually Begun.
asked by Anonymous 
C++ program
Create a source code that will prompt for recive and total a collection of payroll amounts entered at the terminal untill a sentinel amount of 999 is entered. Here is what i have so far i know not much but am not that great at this class. #include #include
asked by kasey 
pre algebra
how do you show your work on the problem 20u+ 6(u+5)
asked by kim 
college math
find the slope of the tangent line to the graph of f at the given point. Graph f and the tangen line. 9. f(x) = 3x +5 at (1.8) 10. f(x)=2x + 1 at (1,3) Please, help me with this problems. thanks
asked by Dave 
geometry
a rectangular box is to be constructed with its length four times the size of its width, and its height one half the size of its length. the volume of the box must be 1000 cubic centimeters. find the dimensions of the box
asked by Anonymous 
biology
List 2 ways in which prokaryotic and eukaryotic cells are alike and 2 ways in which they are different. Is this correct? Alike= cell membrane and DNA Different=ribosomes and mitochondria
asked by Ty 
Math
Miles says 47+36 is the same as 50+33. Is this reasonable? Explain.
asked by sandra 
Arthimetic
Find S11 for 1 + 2 + 4 + 8 + I got 2047 Other choices are 1023 B. 1023 C. 2047
asked by Nessa 
PHI103 Informal Logic
If P, then Q, where P and Q are both sentences. P is the antecedent of the conditional—the ‘if’ part—and Q is the consequent—the ‘then’ part. The corresponding conditional of an argument contains the conjunction of the premises in the
asked by lizzie 
math/117
simplify before multiply explain and show all steps
asked by susan 
math
Jonah wants to add 43+19. He added 43+20. What step should he take next?
asked by sandra 
Korean
Can someone help me with the grammar of this sentence? Or just translate the english to korean? 그는 항상 연애운이 없었어요. It's suppose to translate to 'He is always been unlucky in love' Thank you!
asked by Sadie 
Math
How many miles are in 500,000 square feet?
asked by Rhonda 
Mechanics
Light travels at 3*10^8 m/s. After how many seconds can the lighting reach a distance of be heard 2310 meters away from where it happened?
asked by Joshua 
math
write down the gradient and yintercept of the line 2y=3x+10 step by step
asked by swendy 
English
Thank you. Could you please check these sentences, please? Thank you. 1) Storm is a participant in the triathlon competition. She is going to reach (I don't know the correct verb) the finishing line. She is wearing a pinkish half zipup Tshirt with an
asked by Henry2 
math
the expression 6 times radical 20 divided by 3 times radical 5 is equvilent to 1. 3 radical 15 2. 2 radical 15 3. 8 4. 4
asked by lex 
Socials
Please take a look at my World War I post, thanks.
asked by Mysterious 
physics
a plane on a runway accelerates from rest for 6.8 seconds. If the runway is 450 meters long, what was the plane's acceleration?
asked by jeneva 
math
how estimating the quotient helps you place the frist digit in the quotient of a divison problem
asked by katherine 
Mechanics
A particle of mass 5 kg is acted upon by a horizontal force of magnitude 16 N for 8 seconds, in which time it moves from rest until it is traveling with a speed v m/s. The particle continues to move with this speed for the next 15 seconds. it is brought to
asked by Joshua 
physics
8. A pitcher throws a baseball off a 20m high cliff into a canyon at 30degrees above the horizon at an initial velocity of 35m/s. How far will the ball travel horizontally from the pitcher? Assume no air resistance. 9. How high will the ball get from the
asked by teresa 
algebra
When factored completely, 4x^2y  8x^2y^2 + 6xy^2 = 2xy(2x  4xy + 3y). true or false
asked by tracy 
memorial university
The highest barrier that a projectile can clear is 13.8 m, when the projectile is launched at an angle of 14.9° above the horizontal. What is the projectile's launch speed?
asked by obinna 
College math
Please, help me with this problem: frind the derivative of each function at the given number. 21. f(x)= 4x + 5 at 3 22. f(x)= 4 + 3x at 1 thanks
asked by Mara 
Chemistry
Use the data in Table 15.3 (in the book Chemistry after Raymond Chang) to calculate the equilibrium constant for the following reaction: HCOOH(aq) + OH(aq)= HCOO(aq) + H2O(l)
asked by Amber 
English
Please help me find my errors The Lottery takes place on a beautiful summer day in a small town. Although the location of the town is never given, it appears to be in a rural community. The story begins as a regular summer day, but has a surprising ending.
asked by La'Charlis 
physics
A six kilogram object undergoes an acceleration of 2.0 meters per second squared. Part a. What is magnitude of the net force acting on the object? Part B. If the same force is applied to a 4 kilogram object what acceleration is produced?
asked by katrina 
Math
where would you put the parentheses to make this true 1246 x 0 + 15 = 34
asked by Brandon 
college math
Use a table to frind the indicated limit. 3 7. lim(4x ) x2 2 8. lim (2x + 1) x3 x + 1 9. lim 2 x0 x + 1
asked by Rick 
Finance
Which of the following are good candidates for ascertaining the value effects with an event study, and why? 1. An acquirer wants to buy the firm. 2. The CEO dies 3. The CEO ages 4. Positive earnings surprise at the annual meeting 5. Purchase of a new
asked by Sharon 
college math
2  x 10. lim 2 x0 x + 4 Please, help me, thanks
asked by Rick 
Stats
In each of the four examples listed below, one of the given variables is independent (x) and one of the given variables is dependent (y). Indicate in each case which variable is independent and which variable is dependent. I. Rainfall; Crop yield II. Taxi
asked by Jen 
Algebra 1
Factor each completely. 10b^24b6 ^means exponent
asked by jackson 
Comp 156
What is the definition of a cause and effect essay?Describe a cause and effect situation related to the effect of video games addiction on society.
asked by Wonk 
physics
River A & B flow into river C. River A is 40 ft wide and is flowing at an average of 2.47 mph. River B is 25 ft wide and has a flow rate of 1125 cubic feet per second. Assume all rivers have a uniform depth of 15 ft. If river C is 100 ft wide, what is its
asked by Brian 
algebra
(5x to the 2nd power minus 4x plus 29) plus (3x to the 2nd power plus 8x minus 77)
asked by Darla 
physics
To make a bounce pass, a player throws a 0.60kg basketball toward the floor. The ball hits the floor with a speed of 5.5 m/s at an angle of 72° from the vertical. If the ball rebounds with the same speed and angle, what was the impulse delivered to it by
asked by !!!! 
problem solving
The greatest common factor of two nubers is one. What do you know about the numbers.
asked by JJ 
child day care mgmt
today ur going to talk about vitamin c with ur class . from which food group you willl choose ur snack?
asked by sonia 
Math
find d^85y/dx85 if y = sin x ?? I want the final rule because the solution will be repeated and therefore there will be a particular rule?
asked by NONO 
Math
find the slope of the curve x^3 y^3 + y^2 = x + y at the point (1,1) and (1,1)??
asked by NONO 
Physics
A 2kg block is in equilibrium on an incline of 60 degrees. find fn of the incline on the block
asked by Lizzy 
statistics
Assuming that the data are normally distributed with a mean of 45 and a standard deviation of 3.25, what is the zscore for a value of 40? (Points : 6) 1.54 2.38 1.36 1.54
asked by Anonymous 
memorial university
An Olympic basketball player shoots towards a basket that is 5.66 m horizontally from her and 3.05 m above the floor. The ball leaves her hand 1.74 m above the floor at an angle of 42.0o above the horizontal. What initial speed should she give the ball so
asked by obinna 
math
(5x^2  4x + 29) plus (3x^2 8x  77)
asked by Darla 
physics
Suppose the fame of a gas burner stove emits light just like a blackbody. The flame appears blue,emiting most of its light at a wave lengh of 475nanometers. what is the temperature of the flame? How do I solve this?
asked by KatieSc 
English (Journal Entry)
Is Emma Amos is the first AfricanAmerican Painter ?
asked by Laruen 
chemisrty
A 853 solution is diluted to a volume of 1.50 and a concentration of 7.00 . What was the initial concentration? PLEASE HELP
asked by lola 
his 103
1. In a number of instances (such as the Tea Act of 1773 and the change in 1772 so that payment of governors' salaries came from the king and not provincial legislature) the course textbook notes, to some degree, how the impetus for these acts was not
asked by Mesarage 
trig
sinx=square root of 3 over 2, cosx=1 over 2 i want to find all six trigonometric functions
asked by fausto 
algebra
Solve by factoring: 3x^2 + 2x  1 = 0
asked by tracy 
algebra
(x+2)(x+7)
asked by Darla 
algebra
Factor the trinomial: 6x^2 + 7x  20
asked by tracy 
Calc
Use substitution to evaluate the indefinite integral: The integral of [ (sq. root (1 + ln x)) ((ln x)/x) dx] Im confused on what i should substitute u and du for. Thank you so much!!
asked by Erica 
algebra
Factor the trinomial: 2x^2 + 7x + 3
asked by tracy 
algebra
Factor the trinomial: 3x^2 + 11x + 6
asked by tracy 
Phyics
Sue is swinging a yoyo around her head. What happens to the size of the centripetal acceleration if the mass of the yoyo is doubled without changing the period or length of the string?
asked by Eddie 
algebra
Solve by factoring: 6x^2 + x = 5
asked by tracy 
Physics
A coin is placed on a stereo record revolving at 33 1/3 revolutions per minute. (b) Find the acceleration of the coin when it is placed 5.0, 10, and 15 cm from the center of the record. 2 ____ . m/s2 (5.0 cm) 3 ____ . m/s2 (10 cm) 4 ____ . m/s2 (15 cm)(c)
asked by Eddie 
To SraJMcGin
Could you post that link again, Im not getting the link to that documentary, these other sites pop up, like amazon, and I don't want to purchase it.
asked by Mysterious 
Chemistry
In order to make 1200mL of 2.0 M of sodium hydroxide, NaOH, from 9M NaOH, how many mL of the 9M NaOH should be used?
asked by Nikki 
Algebra
4p10(2p3)=227(12p) Please show all work
asked by Cris 
algebra2
simplify 216 (1/4) slove for the variable 8a9=7a6 find the slope of (0,2),(2,2) find the slope of 2x+4y=8
asked by kiana 
Chemisrty
Determine which law is appropriate for solving the following problem. What volume will 1.56 liters of a gas at 27°C and 745 mmHg of pressure occupy at 100°C and 700 mmHg of pressure? Law used: Boyle's Law Charles' Law Combined Gas Law
asked by Angel 
Math
harmonic motion : y=(1/12)(cos8t3sin8t)
asked by Bree 
Chemistry
Write an equation showing the bicarbonate ion acting as an acid.
asked by Pedro Rodriguez 
physics
Superman throws a boulder of weight 3800 N at an adversary. What horizontal force must apply to the boulder to give it a horizontal acceleration of 13.5 m/s^2?
asked by Ruth 
physics
Suppose that you lob the ball with an initial speed of v = 16.1 m/s, at an angle of θ = 51.9° above the horizontal. At this instant your opponent is d = 11.2 m away from the ball. He begins moving away from you 0.400 s later, hoping to reach the ball and
asked by obinna 
chemistry
If you used 0.155 mL of acetic anhydride, and 0.165 g of paminophenol what was your theoretical yield of acetaminophen? ___________g If you recovered 0.173 g of acetaminophen, what was your percent yield? ________%
asked by ej 
chemistry121
What mass of silver chloride can be produced from 1.25 L of a 0.264 M solution of silver nitrate?
asked by graciela 
chemistry
If you used 0.155 mL of acetic anhydride, and 0.169 g of paminophenol what was the limiting reagent? Choice is either: 1. acetic anhydride or 2. paminophenol ________mol? How many moles of the nonlimiting reageant remained after the reaction was
asked by ej 
Temperature
What is the Kelvin temperature for 30°C?
asked by Angel 
physics
An Olympic basketball player shoots towards a basket that is 5.66 m horizontally from her and 3.05 m above the floor. The ball leaves her hand 1.74 m above the floor at an angle of 42.0o above the horizontal. What initial speed should she give the ball so
asked by obinna 
physics
the constant velocity of a ball is (3x+2y)m/sec. find the distance traveled in the y direction in 2 seconds (x and y are unit vectors)?
asked by marina 
science
A 80.0 kg girl lowers herself to the ground from a height of 11.6 m by holding onto a rope running over a pulley to a 56.0 kg sandbag. What is the magnitude of the acceleration of the girl?
asked by Alex 
algebra
what steps would you take to answer 2(x3)17=133(x+2)
asked by rick 
physics
trying to raise a barrel using sections of pipe.The three objects are horizontal cylinders resting on level ground. The barrel has a mass of 100 kg and its diameter is 2.0m. Each pipe has a diameter of 0.50 m. What minimum horizontal force must his feet
asked by John 
chemistry121
What mass of silver chloride can be produced from 1.25 L of a 0.264 M solution of silver nitrate?
asked by graciela 
Statistics
Suppose we have a population of scores with a mean (ì) of 200 and a standard deviation (ó) of 10. Assume that the distribution is normal. Provide answers to the following questions: What score would cut off the top 5 percent of scores? What score would
asked by Denise 
US History
14. The main argument in support of the Bill of Rights was that A. they would help opponents of slavery gain the upper hand B.without them the US would be a republic government C.they would protect them the people from a tyrannical government D.without
asked by Sarah 
statistics
f(y)= (1/c)e^(y/2) if y is greater than or equal to 0 and f(y)=(1/c)e^(y/2) if y is less than 0 a) What is c? b)What is the probability distribution function?
asked by Lauren 
geometry
if ed= x+4, and dm= 3x8 find ed,dm and eb
asked by Heath 
Biology
Do plants make their own cell wall or is it already there ?
asked by Amy 
geomatry
give and example of an angle that foes not have a complement. In general, what is true a about an angle that has a complement?
asked by manal 
calculus
write a differential equation for the following. a cell starts at a volume of 400m^3 and gains volume at a rate of 3m^3/s
asked by ZUkii 
3RD GRADE MATH
JOHN BROUGHT 94 STICKERS AS WELL.THEN BOUGHT 8 STRIPS OF 10 AND SOME SINGLES. HOW MANY SINGLES DID HE BUY
asked by MAJESTI 
Science/ help with finding the independant variabl
Forty students participated in groups of 46. They were given a questionnaire to test their knowledge of the Black cultural stereotype. Subjects were asked to list the components of the stereotype. After listing the components of the stereotype, subjects
asked by Maria 
nursing
List three key staff of a public health department other than the community or public health nurse.
asked by marissa 
math
why 13 is odd number. what is definition of odd and even numbers
asked by ashley 
Math Linear Equations
Do linear equations need to have negative numbers???
asked by Alice 
physics
A block is hung by a string from the inside roof of a van. When the van goes straight ahead at a speed of 28.9 m/s, the block hangs vertically down. But when the van maintains this same speed around an unbanked curve (radius = 144 m), the block swings
asked by Dan 
science
Gravity on the surface of the moon is only 1/6 as strong as gravity on the Earth. What is the weight of a 15 kg object on the Earth? The acceleration of gravity is 10 m/s 2
asked by Anonymous 
chemistry
If you have 1.50 moles {\rm H_2}, how many grams of {\rm NH_3} can be produced?
asked by Anonymous 
Physics, help with a similar problem I just posted
I posted a the same problem with different numbers a minute ago. The answer to the problem below (same as the other with different numbers) is 28 degrees. Maybe this will help to solve it? Thanks! A block is hung by a string from the inside roof of a van.
asked by Dan 
Algebra
5/2x8/1=3
asked by Jillian 
geomatry

math
For each right triangle, draw the rectangle made by drawing sides opposite the two shorter sides in the triangle. Find the area of each rectangle
asked by John 
social studies
what effect did the war between Spain and England have on England's attempts to colonize Roanoke Island?
asked by stephanie 
physics
An airplane flies north at a constant speed for 6h and covers a distance of 2400km. What is the plane's velocity? The acceleration?
asked by Jordan 
Science
On the HR diagram, red supergiants like Betelguese lie where?
asked by Shannon 
Algebra
How do i find the slope and y intercept of 5X+2Y=7 ?
asked by will 
physics
A 450 g block is at rest on a horizontal surface. The coefficient of static friction between the block and the surface is 0.670, and the coefficient of kinetic friction is 0.380. A force of magnitude P pushes the block forward and downward as shown in the
asked by carlton 
physics
What is the net flux through the surface when charge is at the centre?
asked by hasan 
engineering
The 50kg stone has a speed of v_A = 8m/s when it reaches point A.Determine the normal force it exerts on the incline when it reaches point B. Neglect friction and the stone's size.
asked by HELP!!! 
algebra,math
Factor the GCF and then factor the resulting binomial: 50x^3  128x
asked by tracy 
physics
Question Part Points Submissions Used 1 2 3 4 5 –/5 –/5 0/5 –/5 2/2 0/10 0/10 1/10 0/10 2/10 Total 2/22 A block of mass m = 2.00 kg is released from rest at h = 0.400 m from the surface of a table, at the top of a θ = 35.0° incline as shown below.
asked by carlton 
health safety and nutrition of young child
could u please give answers for exam 40553400. i,m not sure about my answers
asked by sonia 
Math
The sum of two numbers is 144. Double the first number minus thrice the second number is equal to 63. Determine the two numbers
asked by Charmin 
Healthcare
Explain the position on national health care spending in the United State.
asked by pj 
geomatry
To support a young tree, you attach wires from the trunk to the ground. The abtuse angle the wire makes with the ground is supplementary to the acute angle the wire makes, and it is three times as large. find the measures of the angles? Thank you for yr
asked by manal 
geometry
find the equation of the altitude to the side AB given the points A (1,0) B(5,3) C (3,4)
asked by GIBSON 
Math (please help)
n/38=2 what is n?
asked by Jillian 
Chemistry
During an experiment involving separation, you forget to label your beakers and you are unsure of which beaker contains the aqueous layer and which contains the organic layer. How could you quickly and efficiently determine which one is the aqueous layer?
asked by Rachel 
business english
can u give me guidelines to solve this exercise or tell me if they are right please? Avoid discriminatory language: change these sentences to avoid discriminatory language. 1. any worker who ignores this rule will have his salary reduced. my answer: The
asked by efi 
physics
A billiard ball moving at 6.00 m/s strikes a stationary ball of the same mass. After the collision, the first ball moves at 5.39 m/s, at an angle of 26.0 with respect to the original line of motion (a) Find the velocity (magnitude and direction) of the
asked by Anonymous 
Algebra
when finding X or Y intercepts, what do you do if you find an improper fraction. (3Xy=7) Y is easy, but when i get X (3X=7) I cant do (X=7/3)
asked by Nikorasu 
I need help with a conclusion for this paragraph
Please help me with a conclusion for my paragraph... Eric Yiadom is a hotheaded volcanic tempered basketball player whose attitude often leads others to malign him. He is tall, slim with dark olive skin and has short red hair as hot as his temper. On the
asked by ME 
Englsh
I need to check and simplify these longwinded sentences. I really hope you can help me. 1) After making/expressing his wish for eternal beauty,he starts leading a sinful life demonstrating a great insensitivity for every life he ruins. (??) 2) The
asked by Henry2 
Chemistry
3. The solubility of BaSO4 at 25C is 9.04 mg/L. Based on this, how many grams and moles of BaSO4 remained dissolved in the 100 mL of solution? What percent of your yield does this represent? 2. The precipitate is washed with warm water not cold, why is
asked by emman 
Biology
Difference between medukka and pyramid in a kidney?(:
asked by Izzy 
Math
A tile is 38 cm long and the space between the tiles is 0.8. How many tiles are required to build a floor 5.82 m long?
asked by Chris 
math
the folowing equation 9+8x76x5+4x3+2=105 How do u get this?
asked by don 
algebra
Evaluate 11  8 ÷ (1/3 + 1/5)
asked by cindy 
Math
All the seats in the theater are divided into 8 groups.There are 40 seats in each group.Write and solve a division equation to find how many seats there are in the theater.
asked by Ashely 
C++ program
Please help am not very good at c program. Am supposed to create a source code that will display to the screen the first 20 numbers with their squares and cubes.
asked by kasey 
Math
A tile is 38 cm long and the space between the tiles is 0.8. How many tiles are required to build a floor 5.82 m long?
asked by Chris 
math
express the following in standard notation 2 x 10^5
asked by tracy 
Economics
I am studying at University,so my subject is more difficult.So I need a help on my subject.Do you know about a best economic web site?If you know the best economic web site,please write on my post.Thanks for your help
asked by Bayarbold 
Health
31. brenda is 15 years old. She is 5 ft. 6 in. tall and weighs 140 lbs. What is her BMI? a. 20.31 b. 21.40 c. 22.59 d. 24.63 33. In which of the following ways are anorexia and bulimia the same? a. Both are disorders in which the person is very concerned
asked by mysterychicken 
Physics
A force of 15.00 N to the right causes a 2.02 kg book to have a net acceleration of 0.81 m/s2 to the right. What is the frictional force acting on the book?
asked by Sammy