
Physics
A centrifuge in a medical laboratory rotates at an angular speed of 3500 rpm (revolutions per minute). When switched off, it rotates 70.0 times before coming to rest. Find the constant angular acceleration of the centrifuge. (Assume the initial direction
asked by Gina on October 14, 2010 
math
Danny and Erica are 3km apart on a straight road. They set out to walk uniformly at the same time. If they walk in an opposite direction, they will meet after 24 minutes. If they walk in the same direction, Danny will catch up to Erica after 6 hours. Find
asked by anonymous on April 1, 2018 
statistics
sing the proper average, find the average number of grams of fat per ounce of meat or fish that a person would consume over a 5day period if he ate these: 3 oz fried shrimp 3.33 g/oz of fat 3 oz veal cutlet 3.00 g/oz of fat 2 oz roast beef 2.5 g/oz of fat
asked by roga on February 18, 2013 
Chemistry Lab
A 15.00 mL sample of a weak acid with Ka = 3.52x104, was titrated with 0.475 M KOH. The equivalence point was reached after addition of 19.5 mL of KOH with the phenolphthalein indicator. Determine the molar concentration of the original acid solution,
asked by Erin Lee on October 30, 2012 
physcs
A potter's wheel having a radius 0.55 m and a moment of inertia 11.6 kg·m2 is rotating freely at 55 rev/min. The potter can stop the wheel in 8.0 s by pressing a wet rag against the rim and exerting a radially inward force of 66 N. Find the effective
asked by Kelsey on April 17, 2010 
Pre Calc
I am familiar with this type of problem but can't seem to get the right answer. Use the given zero to find the remaining zeros of each function f(x)=x^49x^3+7x^291x348,zero 52i I normally would use synthetic division with the root 52i bringing it down
asked by Zach on November 13, 2009 
Chemistry! urgent
what volume of gas at 40°C and 1.50 atm is necessary to react with 300 L of hydrogen gas measured at the same conditions? 2H2 (g) + O2 (g) > 2H20 (g) 1.50 atm= 151.KPa How would I solve this? Because I can't use: PV = nRT I have pressure, temperature,
asked by Sarah on January 10, 2018 
English
I need help bad, what exactly am I suppose to write about with this question. I just need to know what this question is asking. Here is the question: “Locate two books or internet sources on the career of Edgar Allen Poe. On the basis of information you
asked by Anonymous on September 19, 2010 
Math
A consumer buys n light bulbs, each of which has a lifetime that has a mean of 800 hours, a standard deviation of 100 hours, and a normal distribution. A light bulb is replaced by another as soon as it burns out. Assuming independence of the lifetimes,
asked by Lo on April 27, 2011 
Politics
I'm writing a speech, and it's about the topic "Private sector investment is preferable to public sector investment for Human Space Exploration" I'm on the con side for this argument, and one of my reasons was that public sector will spur cooperation,
asked by Anna on September 18, 2011 
Physics question
mass 0.3kg is moving on the ground at speed 4m/s towards ball B which is at rest on the ground and has mass of 0.8kg. When A collides with B the ball remains in contact for 0.2 sec after the collision B moves forward with a velocity of 1.8m/s find the
asked by Amy on January 10, 2018 
physics
A 15kg block is on a frictionless ramp that is inclined at 20° above the horizontal. It is connected by a very light string over an ideal pulley at the top edge of the ramp to a hanging 19kg block, as shown in the figure. The string pulls on the 15kg
asked by Mazdaly on April 15, 2015 
Physics
An airplane of mass 1.3 104 kg is moving at 64 m/s. The pilot then revs up the engine so that the forward thrust by the air around the propeller becomes 7.2 104 N. If the force exerted by air resistance on the body of the airplane has a magnitude of 4.0
asked by Jane on December 13, 2010 
Physics
In Figure 834, a 1.2 kg block is held at rest against a spring with a force constant k = 785 N/m. Initially, the spring is compressed a distance d. When the block is released, it slides across a surface that is frictionless, except for a rough patch of
asked by Kelly on March 30, 2010 
physics
A cyclist is on a rolling stationary trainer pedaling such that his wheels are traveling at 30 km/h. He has an unfortunate incident and ends up falling over 90° on his side onto a large patch of ice. Given the cyclist and bicycle have an 4.5 kg*m^2, find
asked by joe on June 30, 2016 
Physics
In Figure 834, a 1.2 kg block is held at rest against a spring with a force constant k = 695 N/m. Initially, the spring is compressed a distance d. When the block is released, it slides across a surface that is frictionless, except for a rough patch of
asked by Holy Grail on March 31, 2010 
Physics
A 95 gram piece of metal is heated to 98°C and placed into 200mL of water insulated at 20°C. If the equilibrium temperature is 27.20, find: The heat gained by the water. calories: _________ The specific heat of the metal. cal/(g°C): ________ Hint: 1 mL
asked by Anna on July 9, 2016 
Physics
A pendulum string has a length l = 4.0 ft. When the pendulum ball is released at 90 degrees to the vertical, it will swing down. A nail is located distance d below the point of suspension of the pendulum. Show that d must be at least 0.6l if the ball is to
asked by Nora on March 21, 2015 
Math
An underground tank full of water has the shape of a circular cone with a base radius 5m and height 4m at the top. The top of the tankl is 2m below the groundsurface and is connected to the surface by a spout. Find the work required to empty the tank by
asked by Breona on November 17, 2010 
physics
A 14.7 kg crate is pulled up a rough incline with an initial speed of 1.5 m/s. The pulling force is 124.0 N parallel to the incline, which makes an angle of 11.0 ◦ with the horizontal. The coeﬃcient of kinetic friction is 0.31 and the crate is pulled a
asked by Anonymous on November 9, 2012 
Math
The density if a sample is 5.8g/cm^3. the sample fills a cylindrical container whose hieght is 10.2 cm and whose radius is 4.3cm Find the mass of the sample. Mason, I'm sure the reason you haven't received any responses yet is that you haven't indicated
asked by Mason on July 23, 2007 
Algebra 2 ..........
During a sale, a music store is selling all drum kits for 20% off. Preferred customers also receive an additional 15% off. 1. Write a composite function to represent the final cost of a kit that originally cost c dollars. 2. Find the cost of a drum kit
asked by Anonymous on February 19, 2013 
English 11
In English we are reading the crucible and we have to find modern day witch hunt examples.witch hunt being people who are guilty in the opinion of public opinion, but is actually innocent in the court of law. Some examples he and some others gave were
asked by Elaina on October 18, 2012 
calculus
At a summer campfire, the radius of a marshmallow on a stick expands at the rate of \ {r ' (t)} = \frac{2.4 }{3 t + 6} mm/s where t is the time of heating in seconds. Initially the radius was 3.8 mm. Find the radius after 16 seconds using the following
asked by Marcus on March 8, 2014 
materials bahavior
A specimen has an initial diameter of 200mm and a length of 700mm. At a stress of 40MPa and a temperature of 538oC the steady state strain rate is about 2×10−4% per hour. Find the primary creep elongation and the steady state creep elongation after 5000
asked by lucas on December 7, 2015 
Physics HELp
In Figure 834, a 1.2 kg block is held at rest against a spring with a force constant k = 785 N/m. Initially, the spring is compressed a distance d. When the block is released, it slides across a surface that is frictionless, except for a rough patch of
asked by Kelly on March 31, 2010 
Chemistry
A certain Geiger counter is known to respond to only 1 of every 1000 radiation events from a sample. Calculate the activity of each radioactive source in curies, given the following data. 580 clicks in 104 s My text barely attempts to explain how to do
asked by Trixie on April 16, 2010 
Science: Physics and Chemistry
I was given a systems equation. Two masses are on a flat frictionless surface tied together. There is a pulley type thing and another mass is hanging over the edge of the table. It is attatched to the other 2 masses. It has no Fn, only Fg because it is
asked by Marina on February 8, 2010 
PHYSICS
a 1kg block is executing simple harmonic motion of amplitude 0.1m on a smooth horizontal surface under the restoring force of a spring of spring constant 100N/M.A block of mass 3kg is gently placed on it at the instant it passes through the mean position
asked by CHIKIRSHU on December 24, 2009 
Math
Sarah has to go to her brother's baseball tournament that lasts for 4 days. She eats twothirds of a hotdog at every game. He plays 2 games a day. Define your variables, write a function rule, find the domain and range, and tell whether the data is
asked by Lynn on October 2, 2016 
math pre calc
at the pittsburch zoo, children ride a train for 25 cents, adults pay $1 and seniors pay .75. on a given day, 1400 passengers paid a total of $740 for the rides. there were 250 more children riders than adults and senior riders combined.find the nu,ber of
asked by JT on April 25, 2013 
Math Precal
An airplane has an airspeed of 650 km/h bearing 15 degrees north of west. The wind velocity of is 19 km/h in the direction of 30 degrees east of south. Find the resultant vector representing the path of the plane relative to the ground. What is the ground
asked by chris on September 6, 2016 
Sampling Distribution Complete solutions and illus
Sampling Distribution Complete solutions and illustrations are required. 1.The average annual salary for all U.S. teachers is $29,863. Assume that the distribution is normal and the standard deviation is $5,200. a.Find the probability that a randomly
asked by Rhea on February 27, 2013 
Geoscience
can you help me write out a geological time scale of an area located within stone mountain Georgia? I need a description of the area, how the rock transformed and was dated, picture of a map that has the longitude and latitude of the area picked, the
asked by Robin on February 21, 2011 
Science: Physics and Chemistry
Can someone please help me with this??? I was given a systems equation. Two masses are on a flat frictionless surface tied together. There is a pulley type thing and another mass is hanging over the edge of the table. It is attatched to the other 2 masses.
asked by Marina on February 8, 2010 
physics
A baseball is thrown, leaving the baseball player’s hand 6.0 ft about the ground and at a 45 degree angle with respect to the horizon. The initial speed is 80 ft/s. Find the maximum height attained, the length of time the ball stays in the air, and the
asked by mary on December 10, 2008 
physics
a certain type of propeller blade can be modeled as a thin uniform bar 2.5 m long and of mass 24 kg that is free to rotate about a frictionless axle perpendicular to the bar at its midpoint. if a technician strikes this blade witha mallet 1.15 m fromthe
asked by Anonymous on October 27, 2009 
sorry but more research help
can you guys also give me websties on the process of committe investigations. i looked in goggle but they keep talking about ethics and all that. i swear, that before i ask for your help, i research for atleast 20 to half an hour on the internert to find
asked by dolphino on November 17, 2006 
Chemistry. What equation do I use?
A 20.29 g sample of impure MgCO3 is completely decomposed at 1000oC in previously evacuated 2.0 L reaction vessel. After the reaction was complete the solid residue had a mass of 15.9 g. Assume that only MgCO3 could produce gas CO2 what percent of original
asked by Sarah on December 2, 2008 
Physics
no idea all HELP appreciated!! A shotputter puts a shot (weight = 70.3 N) that leaves his hand at distance of 1.45 m above the ground. (a) Find the work done by the gravitation force when the shot has risen to a height of 2.15 m above the ground. Include
asked by Joe on October 19, 2009 
math
Translate the problem into a pair of linear equations in two variables. Solve the equations using either elimination or substitution. State your answer for the specified variable. A student took out two loans totaling $10,000 to help pay for college
asked by P.Smith on February 6, 2010 
Art
I'm trying to find out what the differences and similarities are between: Impressionism Neoclassicism and Abstract Expressionism Examples of these arts are: The Emperor Napoleon in His Study at the Tuileries by Jacques Louis David (Impressionism) The
asked by Leah on April 10, 2010 
Physics
A hanging wire made out of titanium with diameter 0.080 cm is initially 2.3 m long. When a 78 kg mass is hung from it, the wire stretches an amount 2.89 cm. A mole of titanium has a mass of 47.9 grams, and its density is 4.51 g/cm3. Based on these
asked by Amelie on February 25, 2011 
Algebra
Can anyone tell me if this answer is correct? Solve the problem. Let's imagine that in 2001, a surgeon performs the first brain transplant, the only transplant performed that year. If in 2010, there are 983 brain transplants, find an exponential growth
asked by Xan on June 19, 2010 
science
I was given a systems equation. Two masses are on a flat frictionless surface tied together. There is a pulley type thing and another mass is hanging over the edge of the table. It is attatched to the other 2 masses. It has no Fn, only Fg because it is
asked by Marina on February 8, 2010 
SCIENCE
I can't find out anything about this one Please help. The increase in the use of unleaded gasoline is thought to be responsible for a ___% decrease in the amount of lead in the Mississsippi River in the last decade. a. 10 b. 20 c. 30 d. 40 e. 50 I went to
asked by Meg on May 16, 2007 
English
Team 1, come to the front, please. Who plays the part of the king? Who performs the part of the old man? Who is the movie director? Where is the prop amster in this team? Have you prepared for the props for this play? put them against the blackboard or
asked by rfvv on November 24, 2017 
Finance
I need some help with an assignment that I am working on for Introduction to Finance class. Here is the questions: The Landis Corporation had 2008 sales of $100 million. The balance sheet items that vary directly with sales and the profit margin are as
asked by TinkRose on November 21, 2009 
need help
ESSAY EXAMINATION 1 Objective To successfully complete the course, you must complete Essay Examination 1, which requires you to write your answers to specific questions covering important concepts from your studies. Please provide your answers using a
asked by Anonymous on November 1, 2015 
computer
Lets suppose I am a Manager of some IT company. We have our IT recruiting team who work on employees to get them job until they don't find job, our company has to pay those employees. My team and I want to research on how to increase their skills so they
asked by singh on August 7, 2007 
Probability
Check my answers, thanks! Roll 2 dice. What is the probaility of rolling and getting: A) a sum less than or equal to 6 = 15/36=.42 B) sum of greater than or equal to 10 = 6/36=.60 C) difference of less than or equal to 1 = that can't be possible right? A)
asked by Heath on February 1, 2007 
Algebra 2
PLEASE SHOW WORK FOR ALL PROBLEMS, I WANT TO UNDERSTAND HOW TO DO IT, NOT JUST THE FINAL ANSWER :) 1. find all the zeros of the equation 3x^4+27x^2+1200=0 2. Use the Binomial Theorem to expand the binomial (d4b)^3 3. What is the equation of y=x^3 with
asked by Mike on December 16, 2016 
Dynamics
A car weighing 3220 lb a curve of 200 ft radius bank at an angle of 30°. Find the friction force acting on tires when the car is traveling at 60 mph. The coefficient of friction between the tires and the road is 0.9. show solution step by step show FBD
asked by 18 on July 14, 2018 
Mathematics
Along a road lie an odd number of stones placed at intervals of 10 metres.These stones have to be assembled around the middle stone.A person can carry only one stone at a time.A man carried the job with one of the end stones by carrying them in
asked by Elsa tony on March 15, 2017 
calculus
A fence is to be built to enclose a rectangular area of 210 square feet. The fence along three sides is to be made of material that costs 3 dollars per foot, and the material for the fourth side costs 14 dollars per foot. Find the dimensions of the
asked by Anonymous on November 3, 2010 
Math
the jetstream is a strong wind current that flows across the united states. flying with the jetstream, a plane flew 3,000 miles in 5 hours. Against the same wind, the trip took 6 hours. Find the airspeed of the plane (the speed in still water). My answer:
asked by Jessica on November 22, 2016 
Math Statistics
In the power ball lottery game, winning the jackpot requires that you select the correct five unique numbers between 1 and 58 inclusive (don't have to match the order) and, in a separate drawing, you must also select the correct single nber between 1 and
asked by Lizzy on July 7, 2015 
English  Beowulf
So we just started reading Beowulf at school and we're around ch 8. Our question to answer was Whose account of Beowulf and Brecca's swimming match is more credible/believable and why? This is referring to Unferth's and Beowulf's stories. I said that
asked by Leanna on September 23, 2010 
Physics
A highspeed photograph of a club hitting a golf ball is shown in the figure below. The club was in contact with a ball, initially at rest, for about 0.0049 s. If the ball has a mass of 55 g and leaves the head of the club with a speed of 2.1 102 km/h,
asked by Dhruba on August 14, 2014 
math calculus
The demand function for a product is given by p = 10,000 [1 − (5/5 + e^−0.001x)] where p is the price per unit (in dollars) and x is the number of units sold. Find the numbers of units sold for prices of p = $1000 and p = $1500. (Round your answers to
asked by sam on May 10, 2013 
Chemistry
9.50mL of .100M NaOH + 8.00mL of .100M of HC2H3O2. Find the pH. Okey this is what I did. 8.009.50=1.5mL or .0015L .0015L x .1000 = .00015 moles .00015/(total volume) = .0085714 M log(.0085714)= 2.0669=pOH 142.0669 = 11.933 But I'm getting the feeling
asked by Amphee on May 14, 2010 
Physics
3 kg object is fastened to a light spring with the intervening cord passing over a pulley. The pulley is frictionless and it's inertia may been neglected. The object is released from rest when the spring is unstretched. If the object drops 10 cm before
asked by Bill on February 5, 2015 
science
lena carried out an investigation to find the energy content in bacon rind she lit the bacon rind with a bunsen burner and held it beneath a test tube of water she stirred the water and recorded it temperature! why did lena stir before recording the
asked by ellen on March 19, 2011 
physics
A highspeed photograph of a club hitting a golf ball is shown in the figure below. The club was in contact with a ball, initially at rest, for about 0.0013 s. If the ball has a mass of 55 g and leaves the head of the club with a speed of 1.2X10^2 ft/s,
asked by Emily on October 17, 2012 
Physics
A horizontal 873 N merrygoround of radius 1.11 m is started from rest by a constant horizontal force of 70.6 N applied tangentially to the merrygoround. Find the kinetic energy of the merrygoround after 3.59 s. The acceleration of gravity is 9.8 m/s2
asked by Caryn on March 26, 2010 
Math: Calculus
A fence is to be built to enclose a rectangular area of 230 square feet. The fence along three sides is to be made of material that costs 5 dollars per foot, and the material for the fourth side costs 15 dollars per foot. Find the dimensions of the
asked by REALLY NEED HELP!!! on November 1, 2010 
chemistry
A 152g sample of ice at 37 degrees Celsius is heated until it turns into liquid water at 0 degrees Celsius. Find the change in heat content of the system. I'm really confused on how to solve this question knowing the fact that the state of the system is
asked by maath on January 14, 2019 
physics
A boat must head due north across a river channel that has a current of 9 km/hr towards the west. The boat is capable of traveling at 28 km/hr in still water. If the boat heads into the current to keep its true north course, what will be the resultant
asked by Marie on October 8, 2014 
college algebra
The height of a projectile fired upward is given by the formula s = v0t – 16t2, where s is the height, v0 is the initial velocity and t is the time. Find the times at which a projectile with an initial velocity of 128 ft/s will be 144 ft above the
asked by Kelly on April 8, 2014 
Physics
A highspeed photograph of a club hitting a golf ball is shown in the figure below. The club was in contact with a ball, initially at rest, for about 0.0013 s. If the ball has a mass of 55 g and leaves the head of the club with a speed of 1.2 102 ft/s,
asked by Emily on October 17, 2012 
binomial probabbility
The author purchased a slot machine configured so that there is a 1/2000 probability of winning the jackpot on any individual trial. Although no one would seriously consider tricking the author, suppose that a guest claims that she played the slot machine
asked by bibi on September 23, 2011 
physics
A one mole sample of an ideal monatomic gas at 400 K undergoes an isovolumetric process acquring 550 J of energy by heat. Next it undergoes an isobaric process during which is loses the same amount of energy by heat. Find the work done on the gas. Assume
asked by Anonymous on June 16, 2016 
Math
This question makes reference to an orthonormal basis (i,j), and an origin O. 1. Consider the triangle ABC, with vertices A(0,2), B(9,1), C(1,11). Find: a) a cartesian equation of the altitude from C; b) a cartesian equation of the circle which has BC as
asked by Anonymous on February 27, 2008 
Math
I need help with this problem: Two planes start from Los Angeles International Airport and fly in opposite directions. The second plane starts ½ hour after the first plane, but its speed is 80 kilometers per hour faster. Find the airspeed of each plane if
asked by Kelsey on May 14, 2008 
Quizzes biology
Hello, my teacher has once said that she gets all of her quizzes from the internet, but I can't find the site. Does anyone have any idea as to where grade 12, hard, biology quizzes may come from? The quizzes are brutal, and it would so great if I could see
asked by McLovin on March 3, 2008 
physics!!
You are a secret agent and find that you have been pushed out of an airplane without a parachute. Fortunately, you are wearing a large overcoat (as secret agents often do). Thinking quickly, you are able to spread out and hold the overcoat so that you
asked by kj on February 14, 2009 
Calculus
A fence is to be built to enclose a rectangular area of 310 square feet. The fence along three sides is to be made of material that costs 4 dollars per foot, and the material for the fourth side costs 12 dollars per foot. Find the dimensions of the
asked by JAY Z on April 30, 2014 
Math
A fence is to be built to enclose a rectangular area of 310 square feet. The fence along three sides is to be made of material that costs 3 dollars per foot, and the material for the fourth side costs 14 dollars per foot. Find the dimensions of the
asked by Jacob on December 11, 2014 
Math
A fence is to be built to enclose a rectangular area of 310 square feet. The fence along three sides is to be made of material that costs 3 dollars per foot, and the material for the fourth side costs 14 dollars per foot. Find the dimensions of the
asked by Benjamin on December 11, 2014 
AP Calculus BC
Use a graphing calculator to find how many widgets to make in order to maximize profit. The price (p) of one widget is given as a funtion of the number sold (n) as p=20e^[(n^2)/40000]and the total cost (c) to make n widgets is given by C = 2n^2 + 2000/( n
asked by Michael on November 4, 2010 
calculus
the demand for a certain type of auto tire is given by x=f(p) 50(1+e^p/60). a)if the weekly quantity demanded is 60000 tires find the price? b)if the current price is $120 per tire and is increasing at a rate of $2 per week, what is the rate of change of
asked by anonymous on April 20, 2013 
11th chemistry
The chlorination of ethane gives a compound with the percent composition by mass of chlorine in the compound is 71.7% A) find the molecular formula of this compound B) write the condensed structural formulas of the isomers of this compound and give their
asked by angy on March 7, 2016 
Chemistry
Determine the mass of carbon dioxide that will be formed when 131.0 g of propane (C3H8) is reacted with 32 g of oxygen (O2) C3H8 + 5O2 > 3CO2 + 4H2O I got O2 as my limiting reagent. Then I used the mol of that which is 1 mol to find the mol of CO2 which
asked by Nihira on June 16, 2014 
physics
A body of mass 10 kg is attached to a wire 30 cm long. Area of cross section of the wire is 10 raise to power 6 metre square. It's breaking stress is 4.8×10 raise to power 7 N/metre square. Find maximum angular velocity with which it can be rotated in
asked by bhai on January 11, 2017 
Math
I cant figure out this problem. A pool is rectangular in shape, with a halfcircle at one end. The length is 80 feet; the width is 30 feet; depth is 4ft the halfcircle is appended to one of the thirtyfoot sides, so that end is curved. Find the surface
asked by Amy on September 25, 2007 
Statistics
A die has one red face, two blue faces, and three green faces. It is rolled 5 times. Find the chance that the red face appears on one of the rolls and the remaining rolls are green. [Careful what you multiply. The most straightforward method is to follow
asked by AmmanJordan on April 20, 2013 
Physics
A ball is thrown straight up from the ground with speed . At the same instant, a second ball is dropped from rest from a height , directly above the point where the first ball was thrown upward. There is no air resistance. Question Find the value of in
asked by Anonymous on May 28, 2010 
Calculus 1
A fence is to be built to enclose a rectangular area of 220 square feet. The fence along three sides is to be made of material that costs 6 dollars per foot, and the material for the fourth side costs 13 dollars per foot. Find the dimensions of the
asked by Olivia on October 31, 2011 
Linear Equation in Two Variables
I have to take a college placement test and am studying the practive test. He is the question . . . What is the equation of the line that contains the points with (x,y) coordinates (3,7) and (5,1)? I know that the answer is y=x+4, but I cannot remember
asked by J on August 2, 2005 
Math
1. 85 is 40 of what number? A. 212.5 B. 47.1 C. 34 D. 45 2. Find the commission on a $1,250 sale with a commission rate of 5%. A. $62.50 B. $6.25 C. $75.00 D. $125.00 3. Ben bought a desk for $249.99. The sale tax rate was 6.25%. How much did Ben pay for
asked by CanYouHelpMe on March 13, 2017 
Literacy
What are the subject headings for the 2002 edition of Invisible Man? A. African American men—Fiction B. American literature—History and criticism C. African Americans in literature—Outlines, syllabi, etc. D. Ellison, Ralph. Invisible man i couldn't
asked by Heather on January 17, 2012 
Math 115
A fence is to be built to enclose a rectangular area of 320 square feet. The fence along three sides is to be made of material that costs 6 dollars per foot, and the material for the fourth side costs 14 dollars per foot. Find the dimensions of the
asked by Zack on March 26, 2015 
Math
Write a list of steps that are needed to find the measure of ∠B. A line segment ACD is shown with triangle ABC drawn so that AC is the base of the triangle. Angle BAC is labeled with 72 degree sign, and angle BCD is labeled with 113 degree sign.
asked by barb on February 7, 2018 
Physics AP
So there are two blocks that are connected over a light frictionless pulley. Block A has a mass of 2 kg on a frictionless surface while block b has a mass of 1 kg that hangs freely. It asks for speed, change in speed, and tension. I know that tension can
asked by Jelly on December 15, 2014 
math
Suppose that people's heights (in centimeters) are normally distributed, with a mean of 170 and a standard deviation of 5. We find the heights of 60 people. (You may need to use the standard normal distribution table. Round your answers to the nearest
asked by leelee kay on June 3, 2014 
physics
a bullet of mass 0.06kg is fired into a block of wood. if the bullet is moving at 330 m/s as it enters the block and takes 0.15m to stop, find: A) the avg force required to stop the mullet b) the impulse exerted by the wood on the bullet c)change in
asked by kin on March 25, 2008 
math 160(buss calculus)
The demand function for a product is given by p = 10,000 [1 − (5/5 + e^−0.001x)] where p is the price per unit (in dollars) and x is the number of units sold. Find the numbers of units sold for prices of p = $1000 and p = $1500. (Round your answers to
asked by abc on May 11, 2013 
calculus
The demand function for a product is given by p = 10,000 [1 − (5/5 + e^−0.001x)] where p is the price per unit (in dollars) and x is the number of units sold. Find the numbers of units sold for prices of p = $1000 and p = $1500. (Round your answers to
asked by carol on May 10, 2013 
Trigonometry
(Triangle ABC is scalene) AC is a straight shore line and B is a boat out at sea. Angle A is 60 degrees and Angle C is 45 degrees. Find the shortest distance from the boat to the shore if A and C are 5km apart...I honestly have no idea where to start with
asked by Abby on January 28, 2015 
geometry
Kyle is pulled back on a swing so that the rope forms an angle of 30° with the vertical. The distance from the top of the swing set directly to the ground is 12 feet. Find Kyle’s height off the ground, , when he is in the pulledback position. Round the
asked by Anonymous on November 22, 2012
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