Wednesday
March 12, 2014

# Homework Help: Science: Engineering

Ýndustrial Engineering
a. h = Yo*t + 4.9g*t^2 = 17.02 m Yo*2.94 - 4.9*(2.94)^2 = 17.02 2.94Yo - 42.35 = 17.02 2.94Yo = 17.02 + 42.35 = 59.37 Yo = 20.2 m/s = Ver. component of initial velocity. Dx = Xo*2.94 = 41 Xo = 13.95 m/s = Hor. component of initial velocity. tanA = Yo/Xo = 20.2/13.95 = 1.44803 ...
Tuesday, March 19, 2013 at 8:13pm

Ýndustrial Engineering
The figure shows the paths of a golf ball your friend drops from the window of her apartment and of the rock you throw from the ground at the same instant. The rock and the ball collide at x = 41.00 m, y = 17.02 m, and t = 2.94 s. If the ball was dropped from a height of h = ...
Monday, March 18, 2013 at 12:08pm

engineering mechanics
How can there be two values of w at the same time? Is one of those two numbers (1 and 2) an angular acceleration?
Sunday, March 17, 2013 at 3:01am

engineering mechanics
Pls anr give me
Sunday, March 17, 2013 at 12:31am

engineering mechanics
A vehicle on a monorail has a speed S = 10 m/s and an acceleration S=4m/s 2 relative to the ground reference XYZ when it reaches point A. Inside the vehicle, a 3 kg mass slides along a rod which at the time of interest is parallel to the X axis. This rod rotates about a ...
Sunday, March 17, 2013 at 12:13am

statistics
The Engineering Department Claims the Average Battery Lifetime is 500 Minutes. You wish to check whether the lifetime is different from 500 Minutes. What type of hypothesis test is it going to be?
Wednesday, March 13, 2013 at 6:35pm

Physics-VASTS
The Mass Budget: Mars Reconnaissance Orbiter Repair Mission Operational Concept Math Problem: The Mars Reconnaissance Orbiter (MRO) has encountered a failure in its High Resolution Imaging Science Experiment (HiRISE) camera. Mission Case: As the HiRISE camera contains the ...
Thursday, March 7, 2013 at 4:29pm

engineering science N4
A = (-21.2,21.2) B = (-19.3,-23.0) B-A = (1.9,-44.2) = 44.2,-87.5° or 44.2km/hr S2.5°E
Monday, March 4, 2013 at 2:28pm

engineering science N4
You add them as vectors. Vbreltoa=velocityb-veloictya AS VECTORS
Monday, March 4, 2013 at 2:28pm

engineering science N4
Two ships leave port simultaneously. Ship A sails north-west at 30 km/h and ship B sails S 40 degrees W at 30 km/h. Calculate the velocity of ship B relative to the velocity of ship A.
Monday, March 4, 2013 at 1:57pm

Sound engineering
A Question of engineering about Sound. How to calculate in step by step? Thank you. The octave bands¡¦ Sound pressure levels in dB re 20 £g Pa are: Hz 57 129 220 420 1K 2K 4K 8K dB 85 95 90 80 88 70 68 72 What is the overall A-weighted sound pressure level?
Thursday, February 28, 2013 at 12:05am

MONGU COLLEGE
perpendicular to 5x-2y=10 2y=5x-10 x=2.5 x-2 slope is 2.5, so slope of line perpendicular is -1/2.5 or -2/5 y=-2/5 x + b but it goes thru 0,0 0=-2/5 (0)+b so b = 0 equation of the line: y=-2/5 x Rx in communication skills? I don't know. In Communication (Electronics) ...
Tuesday, February 26, 2013 at 7:52pm

Engineering Economy
What is the future worth of $1,000 in month 1,$1,040 in month 2, and amounts increasing by $40 per month through month 12, at the end of year 2 if the interest rate is 23.7631528% per year, compounded continuously? Tuesday, February 26, 2013 at 11:59am Engineering Econonmy You decide to open an IRS-approved retirement account at your local brokerage firm. Your best estimate is that it will earn 9 percent. At the end of each year for the next 25 years, you will deposit$4000 per year into the account (25 total deposits). 3 years after the last ...
Saturday, February 23, 2013 at 7:13am

Engineering Maths
help solving the ffg. differential equation: dy/dx +ytanx=y^3sec^4x
Friday, February 22, 2013 at 2:56pm

Engineering Maths
Pleas help solve the ffg. differential equation: dy/dx-(1+1/x)y=y^2
Friday, February 22, 2013 at 2:54pm

Engineering Maths
Friday, February 22, 2013 at 2:52pm

engineering science
Its Engineering Science
Friday, February 22, 2013 at 2:32pm

Engineering Econonmy
To determine what you would have at the end of 3 or 5 years use: The following formula works for compounded annually. future value = P(1+r)^n for 1500 and 3 years at 8% 1500(1+.08)^3 Do this calculation and a similar one for the 5 year period and then compare.
Thursday, February 21, 2013 at 3:55pm

Engineering Econonmy
For your 21st birthday, your grandfather offers you a gift of $1000 today. However, you have the choice of waiting 3 years and receiving$1500 OR waiting 5 years and receiving $3000. If your money grows at a rate of 8 percent compounded annually, which alternative should you ... Thursday, February 21, 2013 at 3:51pm engineering a ship is 100km north west of cape town harbour and it sails directly north at a velocity of 30km/h in ei ght hours.calculate its resultant speed with reference to the cape town harbour in magnitude and direction Wednesday, February 20, 2013 at 2:51pm Feature-Story Ideas Nobody ever writes stories on the civil engineering aspects of modern life. Big electric (why do the lights stay on?), Big gas (Why does it mostly not explode?) Big water (where are the ~20ft cir.? pipes that feed the area, and why do they continue to exist?) Most importantly... Wednesday, February 20, 2013 at 7:58am engineering Anybody knows the quiz3 of coursera "control of mobile robots"? Monday, February 11, 2013 at 2:46pm University, Engineering Math Hi.. that website is not helping much Sunday, February 10, 2013 at 5:58am engineering 1kg=9.81newton 75kg(9.81)=735.75newton tension stess= p/a 1.25kn/cm^2=0.73575kn/a a=1.6989 cm^2 a=3.1415/4(d^2) 1.6989=3.1415/4(d^2) d=1.471 cm edsel salariosa research and development engineer Sunday, February 10, 2013 at 12:39am world history Explain the importance of Roman technology and engineering? Cover two separate kinds of Roman technology and engineering. Friday, February 8, 2013 at 3:10pm english (theses writing) Wouldn't it depend on what and why you are writing? IT seems to me, if you are writing a short essay, you ought to greatly narrow the topic. I am reminded of Thoreau's Walden Pond. The thesis of each essay was written so that its meaning could be discerned by inference... Friday, February 8, 2013 at 8:36am english (theses writing) hello! :) I am a freshman college student and I am looking for a thesis topic about civil engineering.Can you give me a topic on my thesis about civil engineering? thanks :) Friday, February 8, 2013 at 7:39am english (theses writing) Can you give us a topic on our thesis about civil engineering? Friday, February 8, 2013 at 7:29am University, Engineering Math wolframalpha.com and http://wood.mendelu.cz/math/maw-html/ind​ex.php?lang=en&form=ode can solve many ODE's Tuesday, February 5, 2013 at 11:47am University, Engineering Math solve the ffg. differential equations: 1. x^3 +(y+1)^2 dy/dx=0 2. dy/dx-(1+1/x)y=y^2 3. dy/dx + ytanx=y^3sec^4x Tuesday, February 5, 2013 at 10:27am Engineering Math sorry didn't mean to lol but it is lol Monday, February 4, 2013 at 9:37am Engineering Math lol Monday, February 4, 2013 at 9:36am Engineering Math LJMU i bet u Saturday, February 2, 2013 at 10:30am Engineering Math LJMU i bet u Saturday, February 2, 2013 at 10:30am Intro to Computer Engineering 5*8^2 - 5b(8) + b^2+2b+5 = 0 b^2 -38b + 325 = 0 b = 13,25 check: base 13 5*8*8 = 328 50*8 = 520 125 = 200 328-520+200 = 0 base 25 5*8*8 = 0 12 20 (base 25) 125 = 1 2 5 add: 1 15 0 50*8 = 1 15 0 subtract: 0 Thursday, January 31, 2013 at 2:34pm Intro to Computer Engineering When solving 5x^2-50x+125=0, a space alien got x=8 for one of the two roots. What possible base could the alien be using? (Note: the coefficients are also in this base. That is 5,50,125 are all in this mystery base as well) Thursday, January 31, 2013 at 1:29pm Math A mechanical engineering student wishes to inscribe a rectangle in a quarter circle of radius 2.00 cm. Determine the dimensions of the rectangle that will give it the greatest area. length in cm = height in cm = My attempt on find the relationship between the rectangle and the... Tuesday, January 29, 2013 at 8:45am Engineering Math A Theme Park site is being designed. It will occupy a rectangular piece of land 800m by 600m. There are to be 4 particularly noisy rides. The ‘Drumbeat’ uses music which reaches a level of 95dB(A). The ‘Bigdrop’ generates screams which can reach 98dB(A). ... Monday, January 28, 2013 at 10:05am Engineering Math A Theme Park site is being designed. It will occupy a rectangular piece of land 800m by 600m. There are to be 4 particularly noisy rides. The ‘Drumbeat’ uses music which reaches a level of 95dB(A). The ‘Bigdrop’ generates screams which can reach 98dB(A). ... Monday, January 28, 2013 at 10:01am electrical engineering 3c, 5c Thursday, January 17, 2013 at 11:36am engineering the pringles manufacturing company tells you that they are switching to a potato supply that has a higher moisture content than those used previously. The new supply, after being mashed an cooked, prior to drying for pringles production, now contains 70% moisture content. they... Thursday, January 17, 2013 at 11:27am engineering Your friend, a 75 kg mountain climber is suspended from a cliff by a rope. Calculate the tension in the rope, in Newtons, when you lift your friend to safety. If the rope can withstand 1.25 kN of stress per square centimeter of cross-sectional area, what minimum diameter of ... Thursday, January 17, 2013 at 11:17am 7th grade science ASAP 1. How many chromosomes do human sex cells have? (1 point) 22 43 46 23 2. The actual genetic makeup of an organism for a particular trait is called the ______. The physical characteristic that trait gives the organisms is called the ______. (1 point) genotype; phenotype genome... Wednesday, January 16, 2013 at 8:55pm 7th grade science 1. How many chromosomes do human sex cells have? (1 point) 22 43 46 23 2. The actual genetic makeup of an organism for a particular trait is called the ______. The physical characteristic that trait gives the organisms is called the ______. (1 point) genotype; phenotype genome... Wednesday, January 16, 2013 at 8:21pm SOCIAL STUDIES URGENT!! 1. When people talk about natural resources, they usually mean (1 point) vegetation. water. minerals. all of the above 2. Geothermal energy is considered a (1 point) fossil fuel. renewable resource. nonrenewable resource. recyclable resource. 3. Minerals, coal, and natural ... Wednesday, January 16, 2013 at 1:16am engineering mechanics A person A is trying to keep his balance while on a sled B that is sliding down an icy incline. Let mA = 78kg and mB = 25 kg be the masses of A and B, respectively. In addition, let the static and kinetic friction coefficients between A and B be μs = 0.4 and μk = 0.... Monday, December 31, 2012 at 7:58pm maths Engineering -- E Science ------ S Prob (E is picked from 1st group) = 3/8 prob(E is picked from the 2nd group) = 5/8 first picking is determined by a die toss of 3 or 5 which has a prob of 2/6 or 1/3 2nd picking is determined by any other die toss which is 2/3 prob of your ... Friday, December 28, 2012 at 8:27am maths 5. There are two groups of subjects one of which contains 5 science subjects and 3 engineering subjects and the other consists of 3 science and 5 engineering subjects. An unbiased die is cast. If the number 3 or number 5 turns up, a subject is selected at random from the first... Friday, December 28, 2012 at 4:00am engineering 45 MN/900Gg Monday, December 24, 2012 at 4:30am engineering economic a. P1 = Po(1+r)^n. r = (6%/100%) = 0.06 = APR expressed as a decimal. n = 1Comp./yr * 5yrs = 5 compounding periods. P1 =$2676.45. b. P2 = Po + Po*rt. P2 = 2000 + 2000*0.07*5 = $2700. Thursday, December 20, 2012 at 6:02pm engineering economic Ahmad is considering investing RM2000 to Ali's project at an interest rate 6% compound annually for 5 years or investing RM2000 to Rosli at 7% per year simple interest for 5 years. From your point of view which option is better and state your reason Tuesday, December 18, 2012 at 4:45pm Biology Suppose you are a scientist trying to help people who cannot produce an enzyme needed for proper digestion. How could you use genetic engineering techniques to make transformed bacteria that produce the enzyme? Monday, December 17, 2012 at 5:17pm math To MS.SUE I wouldn't worry much about missing one problem because of a minor error. Many very smart engineers and mathematicians make minor errors. My son, now with a masters in engineering from Stanford, didn't ace all of his high and middle school tests because he usually made... Sunday, December 16, 2012 at 4:58pm Fundamental Of Chemical Engineering OK what about if we have all this equations: H2SO4→ so3+H2O SO3→ SO2+1\2O2 SO2→ S+O2 Saturday, December 15, 2012 at 1:08pm Fundamental Of Chemical Engineering so, now you know the relative amounts (in moles) of the various compounds. 10 tons of 98% acid is 9.8 tons of H2SO4 convert tons to moles (at 98g/mol) for each mole of S you need 1.5 moles of O2 and 1 mole of H2O. Now, if you have to account for the fact that air is not pure ... Saturday, December 15, 2012 at 12:24pm Fundamental Of Chemical Engineering They didn't give us an equation but I write this, I don't now if it's right or not. SO3 (g) +H2O (l) → H2SO4 (l) Saturday, December 15, 2012 at 12:14pm Fundamental Of Chemical Engineering why don't you at least provide the balanced equation used for industrial production of H2SO4? In doing so, you will have almost solved the problem. Saturday, December 15, 2012 at 11:33am Fundamental Of Chemical Engineering If a sulfuric acid plant is to produce 10 ton/day of 98% sulfuric acid, How much sulfur is needed, how much air is required and how much water is used? Saturday, December 15, 2012 at 11:30am Fundamental Of Chemical Engineering If a sulfuric acid plant is to produce 10 ton/day of 98% sulfuric acid, How much sulfur is needed, how much air is required and how much water is used? Saturday, December 15, 2012 at 11:11am biology genetic engineering can provide a variety of advantages and disadvantages to today's society. what are current scientists more likely to learn from transgenic animals than from transgenic bacteria or transgenic plants? Thursday, December 13, 2012 at 2:52pm 7th grade science 1. A Punnett square shows you all the ways in which ____ can combine. (1 point) alleles eggs sperm colors 2. Mendel called plants that received different alleles for a trait from each parent ____. (1 point) hybrids dominant genotypes phenotypes 3. Which is a possible genotype ... Wednesday, December 12, 2012 at 10:27pm 8th Grade Math 1.8*10^7 is correct. In engineering notation, 18*10^6 Wednesday, December 12, 2012 at 10:02pm Engineering Fund. Since the force 235 N is at an angle, you want it to be parallell with the ground. To do that you do the cosine of the angle multiplied by the force. So 235*cos34.8 = 192.97 N Using F=ma 192.97=19a so a= 10.1563 m/s^2 Wednesday, December 12, 2012 at 3:03pm civil engineering the propane gas tank has an inner diameter of 1500mm and wall thickness of 15mm. If the wall is pressurized to 2MPa, determine the absolute maximum shear stress in the wall of tank. Tuesday, December 11, 2012 at 7:33am Science help needed Posted by This Girl on Thursday, December 6, 2012 at 1:41pm. 1. __________ is one type of genetic engineering, in which a normal allele is placed into a virus. (1 point) A color blind test Down syndrome Gene therapy Polygenic inheritance 2. Human insulin can be produced by ... Thursday, December 6, 2012 at 4:43pm This is Urgent Science 1. __________ is one type of genetic engineering, in which a normal allele is placed into a virus. (1 point) A color blind test Down syndrome Gene therapy Polygenic inheritance 2. Human insulin can be produced by _______, which introduces DNA from one organism into a _______... Thursday, December 6, 2012 at 2:52pm Science 1. __________ is one type of genetic engineering, in which a normal allele is placed into a virus. (1 point) A color blind test Down syndrome Gene therapy Polygenic inheritance 2. Human insulin can be produced by _______, which introduces DNA from one organism into a _______... Thursday, December 6, 2012 at 1:41pm Chemical Engineering The pressure is constant, and so the heat at constant pressure is qp = - dH vaporization. W=-pdV and so since p=pext=1atm and dV = (vf - vi) = vliquid - vvapor, we'll say that since the volume of the vapor is significantly greater than that of the liquid, then vf-vi is ... Saturday, December 1, 2012 at 6:10pm university, physics current=power/120 a. do the math b. add them c. Hmmmm. You ought to do engineering estimates first. 1200w is about 10 amp 1100 watts is about 10 amps 1400 watts is about 10 amps That answers the last part pretty easily. Monday, November 26, 2012 at 4:21pm engineering Resultant of what other forces? What is ox? To come up with numerical answers, other numbers must be provided. Tuesday, November 20, 2012 at 7:33am engineering Determine the resultant force and its inclination with ox Tuesday, November 20, 2012 at 5:26am Chemical Engineering: Raoult's Law A binary mixture of benzene and styrene is kept in a closed vessel at equilibrium such that both liquid and vapor phases co-exist. The total amount of moles in the vessel is 100. The total moles of benzene that is distributed in the liquid and vapor phases is 35. The ... Sunday, November 18, 2012 at 8:36am engineering a bolt located 50mm from the center of an auto wheel is tightened by the couple shown for .10 seconds. determine the resulting angular velocity of the wheel if the wheel has a radius of gyration of 250 mm and a mass of 19 kilograms Saturday, November 17, 2012 at 3:45pm structural engineering Fig P9 shows a drawbridge being rasied by a cable EI. The structure is a loaded truss consisting of a pinned assembly of members(links) joined at their ends designed to from a rigid structure. The four joint loadings shown result from the weight of the roadway. Calculate the ... Saturday, November 17, 2012 at 3:55am Engineering Statistics what numbers did u plug in for z and x in the formula z=x-u divided by the s.d Thursday, November 15, 2012 at 11:58pm Chemical Reaction Engineering The following elementary first-order reactions occur at constant density: k1 k2 A --> B --> C k1 = 5 hr-1 k2 = 4 hr-1 CA0 = 1 mol/lit CB0 = CC0 = 0 v0 = 20 m^2/min Find the maximum production rate of B in moles per minute and the optimum  for (a) a plug flow reactor... Thursday, November 15, 2012 at 12:36pm Physics An advertising firm has contacted your engineering firm to create a new advertisement for a local ice-cream stand. The owner of this stand wants to add rotating solid cones (painted to look like ice-cream cones, of course) to catch the eye of travelers. Each cone will rotate ... Tuesday, November 13, 2012 at 9:09pm operating system Case 2-2: Comparing Word-Processing Applications You see an opportunity to possibly save your company money by adopting the OpenOffice suite for the new PCs in the Engineering Department. Your boss is interested in your suggestion, but wants to see a list of pros and cons for ... Sunday, November 11, 2012 at 6:24pm engineering how many btu's does it take to raise one pound of water at 32 degrees f to the boiling point at 14.7 psia and then to steam? Sunday, November 11, 2012 at 4:08pm Engineering If you have a 300 ohm transmission line terminated with an antenna that presents a (400 ohm - j 600 ohm) load impedance: What is the normalized load admittance? (I come up with 1.5 - j 2 but am uncertain if correct) How far from the load should a short circuit stub be placed ... Saturday, November 10, 2012 at 4:33pm chemical reaction engineering Propane steam reforming over an alumina supported Ni metal catalyst: C3H8 (g) + H2O (g) → CO2 (g) + H2 (g) is proposed to follow these mechanisms: C3H8 + 2S1 ↔ C2H5-S1 + CH3-S1 (M1) H2O + 2S2 ↔ OH-S2 + H-S2 (M2) CH3-S1 + OH-S2 → CH3O-S1 + H-S2 (M3) CH3O... Tuesday, November 6, 2012 at 7:51am Engineering Problem Solving if a car can accelerate at 7 meters/second, what will its 0-60 mph time be? Sunday, November 4, 2012 at 5:40pm personal statement this is my personal statement. plese check my grammar and what other stuff i can add or remove? thanks Ever since I was a little kid and till a year ago, I really didn’t know what I wanted to be in life. I imagined myself to be a teacher when I was 8 years old. As I grew ... Friday, November 2, 2012 at 2:54pm Engineering maintenance an undamped mass spring system is with mass of 12kg and stiffness of 15N/mm,a)determine the natural frequency and the period of the free motion of the system b)determine the amplitude of displacement A and the phse shift for the initial conditions x0=2mm,v0=-1mm/s Monday, October 29, 2012 at 2:36am pltw Please follow directions and type the name of your class in the appropriate box. Engineering experts will probably overlook your cryptic heading. Tuesday, October 23, 2012 at 6:07pm I.E.D ITS introduction to engineering design Tuesday, October 23, 2012 at 5:57pm engineering A string is fit snugly around the circumference of a spherical hot air balloon. More hot air is added (probably by a prominent scientist’s lecture) and it now takes an additional 12.4 feet of string to fit around the circumference. What is the increase in diameter? Wednesday, October 17, 2012 at 4:43pm CVP Analysis - Business Math Engineering estimates show that the variable cost of manufacturing a new product will be$35 per unit. Based on market research, the selling price of the product is to be $120 per unit and variable selling expense is expected to be$15 per unit. The fixed costs applicable to ...
Tuesday, October 16, 2012 at 6:25pm

physics
plz tell me in which website can I get free engineering notes for first year B.E?
Tuesday, October 16, 2012 at 10:07am

Bachelor in Science
Bachelor's degrees usually take 4 to 5 years to complete. You'll probably need to decide which field of science -- geology, physics, engineering, chemistry, biology, physiology, etc. to specialize in.
Monday, October 8, 2012 at 7:06pm

Engineering Fund.
A large box whose mass is 19.0 kg rests on a frictionless floor. A mover pushes on the box with a force of 235 N at an angle 34.8° below the horizontal. Draw the box's free-body diagram and use it to determine the acceleration of the box. m/s2
Thursday, October 4, 2012 at 5:38pm

marketing
Binomial probability distributions are used in business, science, engineering, and other fields. Suppose you work for a marketing agency and have to create a television ad for Brand A toothpaste. The toothpaste manufacturer claims that 40% of the toothpaste buyers prefer Brand...
Thursday, September 27, 2012 at 1:48pm

Physics
As a civil engineering intern during one of your summers in college, you are asked to design a curved section of roadway that meets the following conditions: When ice is on the road, and the coefficient of static friction between the road and rubber is 0.077, a car at rest ...
Wednesday, September 26, 2012 at 8:31pm

Physics
A group of engineering students constructs a slingshot to launch water balloons. The angle of launch is 30° and the initial velocity of the balloon is 14 m/s. The students launch a balloon from the roof of a building and the balloon lands 42 m away from the building. How ...
Friday, September 21, 2012 at 12:29am

physics
A group of engineering students constructs a slingshot to launch water balloons. The angle of launch is 30° and the initial velocity of the balloon is 14 m/s. The students launch a balloon from the roof of a building and the balloon lands 42 m away from the building. How ...
Friday, September 21, 2012 at 12:25am

Engineering/Chemistry
m_dot = 2000 kg/h q = 111600 kJ/h T_final = 95C C_p = 3.9 kJ/(kgC)
Wednesday, September 19, 2012 at 12:01pm

Intro T Electrical Engineering
A solid metal sphere with radius 0.430{\rm m} carries a net charge of 0.210{\rm nC} . Find the magnitude of the electric field at a point 0.112{\rm m} outside the surface of the sphere. Find the magnitude of the electric field at a point inside the sphere, 0.112{\rm m} below ...
Tuesday, September 18, 2012 at 3:25pm

Society & Environment Engineering