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November 23, 2014

Search: efficiency

Number of results: 826

Physics
A nuclear power plant has an electrical power output of 1200 MW and operates with an efficiency of 31%. If excess energy is carried away from the plant by a river with a flow rate of 1.0 multiplied by 10^6 kg/s, what is the rise in temperature of the flowing water?
December 3, 2010 by Chelsea

Physics
A nuclear power plant has an electrical power output of 1200 MW and operates with an efficiency of 31%. If excess energy is carried away from the plant by a river with a flow rate of 1.0 multiplied by 10^6 kg/s, what is the rise in temperature of the flowing water?
December 3, 2010 by Chelsea

physics
a 70-kg man climbs a mountain 1200 m high (measured from the base) in 4 h and uses 9.8 kcal/min. calculate his power consumption in watts. what is his power output in useful work? what was the efficiency of this man during the climb?
June 28, 2012 by Anonymous

physics
A nuclear power plant has an electrical power output of 1900 MW and operates with an efficiency of 32%. If excess energy is carried away from the plant by a river with a flow rate of 1.0 106 kg/s, what is the rise in temperature of the flowing water? °C
April 29, 2013 by Annette

Chemistry
Rank the crystal lattice structures in order of decreasing efficiency of space in the structure? Face centered cubic, body centered cubic, simple cubic, hexagonal close packing.
May 14, 2009 by gnozahs

simple machines
A box with a force of 100N is pushed up an inclined plane. It takes a force os 75N to push it to the top. What is the efficiency of the inclined plane?
January 19, 2010 by laura

economics
Discuss the effects on efficient behavior of different liability rules, including comparative negligence. Include in your discussion an analysis of the efficiency of the various rules and discuss the differing costs of administering the rules.
May 11, 2009 by Sung

Math
A river does 6,500 J of work on a water wheel every second. The wheel's efficiency is 12%. a. How much work in joules can the axle of the wheel do? b. What is the power output of the wheel in 1 s?
November 3, 2012 by Leah

physics
You use an inclined plane to move furniture into a truck. You perform 224 kJ of work, but only do 91 kJ of useful work. What is the efficiency of the inclined plane?
October 4, 2014 by meriyhome

economics
When policymakers set prices by legal decree, they a. improve the organization of economic activity. b. obscure the signals that normally guide the allocation of society’s resources. c. are usually following the advice of mainstream economists. d. are demonstrating a ...
September 24, 2010 by chris

Economics
When policymakers set prices by legal decree, they...? a. obscure the signals that normally guide the allocation of society’s resources. b. are usually following the advice of mainstream economists. c. improve the organization of economic activity. d. are demonstrating a ...
January 16, 2011 by Anonymous

Physics
The oven draws 1100W of power, and you have determined that it heats with an efficiency of 51%. Using this information, determine the time t it would take to bring 240mL of water from 25C to 100C . Note that 4.2 J of energy is required to raise the temperature of 1.0mL of ...
December 10, 2010 by Mike

bio
Determine the number of colonies counted on the LB plate in the following transformation experiment. The amount of plasmid on the plate being counted was 0.04 micrograms. The transformation efficiency was calculated to be 4 x 10^3.
April 21, 2009 by Frank Minimi

physical science
A river does 6,500 j of work on a water wheel every second. The wheel efficiency is 12%. A. How much work in joules can the axle of the wheel do? B. What is the power output of the wheel in 1 s?
November 6, 2014 by Aurora Simmons

Chemistry
If 682000 kJ could be transferred with 100% efficiency to water, what volume of water, in liters, could be heated from 8.6 degrees Celsius to 60.0 degrees Celsius as a result?
January 31, 2011 by Jason

science
1.) what energy transformation are taking place when a ball is dropped from 1.0 m, bounces and tries to 0.80 m, bounces again and rises to 0.64m? What is the efficiency of the energy transformations of ball during a bounce?
August 4, 2014 by chen

physics
The useful energy output of an engine is 1.50 × 103 kJ and the total mechanical energy input is 4.32 x 103 kJ . The efficiency of the engine is __________%
July 31, 2014 by oihln

Algebra 2
A cars fuel efficiency is 24 miles per gallon and can be driven 324 miles with a full tank of gas. Write an expression for the amount of miles that be driven after X gallons have been used.
September 7, 2011 by Jor

Chemistry
In Europe, gasoline efficiency is measured in km/L . If your car's gas mileage is 28.0 mi/gal, how many liters of gasoline would you need to buy to complete a 142-km trip in Europe? Use the following conversions: 1km=(0.6214mi) and 1gal= (3.78L)
January 29, 2008 by megzie12

college health care claim preparation
I am doing an assignment on how to improve patient intake efficiency. Would assigning one staff member the task of dealing with patient registration help? Are there any other ideas that could make the intake process quicker?
May 1, 2010 by Jenn

Law
Which of the following is NOT a reason for the soaring prison population in the U.S.? A. Expansion and increased efficiency of law enforcement B. Increase in the population at risk C. War on drugs D. Increased rate of nonviolent offenses is it B
July 7, 2014 by Amy

physics
A water-cooled engine produces 1589 W of power. Water enters the engine block at 14.61 °C and exits at 29.91 °C. The rate of water flow is 147.3 L/h. What is the engine’s efficiency?
January 6, 2012 by melisa

physics
A water-cooled engine produces 1589 W of power. Water enters the engine block at 14.61 °C and exits at 29.91 °C. The rate of water flow is 147.3 L/h. What is the engine’s efficiency?
January 7, 2012 by linda

Miceoecon
Suppose two passengers end up with a reservation for the last seat on a train from San Francisco to Los Angeles. Two alternatives are proposed: a. Toss a coin b. Sell the ticket to the highest bidder Compare the two options from the standpoint of efficiency and equity.
February 20, 2010 by MICHELLE

microeconomics
suppose two passagers both end up with a reservation for the last seat on a train from san franciso to los angeles. two alternatives are proposed: a)toss a coin b)sell the ticket to the highest bidder. compare the two from the standpoint of efficiency and equity.
February 21, 2010 by ronie

Agricultural Policy
Find the price and quantity that will satisfy the condition for static efficiency in the use of water resources given the following demand and supply equations for water: Demand: P=600-Q Supply: P=2+Q
February 17, 2009 by jesse

physics
A load of 500N is raised 0.2m by a machine in which an effort of 150N moves 1m.What is a) the work done on the load b)the work done by the effort c)the efficiency
August 3, 2011 by Luc

PHYSICAL
A SIMPLE MACHINE PRODUCE 25 JOULES, WHAT IS THE OUTPUT WORK FOR EVERY 50 JOULES OF INPUT WORK. WHAT IS THE EFFICIENCY OF THIS MACHINE?
January 13, 2013 by FERNANDO

Business English
What are two or three solution that might improve the efficiency of my office What does each solution involve and how much work and money is required to introduce that change How exactly does each change solve the problem? which is the best solution at this time? why?
November 21, 2008 by Joycelyn

Physics
A pulley system is used to lift a piano 2.6 m. If a force of 2510 is applied to the rope as the rope is pulled in 14 m, what is the efficiency of the machine? Assume the mass of the piano is 750 kg. I know the equation is eff = Wout / Win I'm just confused on what I'm supposed...
March 29, 2011 by Becky

chemistry
In Europe, gasoline efficiency is measured in km/L. If your car's gas mileage is 39.0mi/gal , how many liters of gasoline would you need to buy to complete a 142-km trip in Europe? Use the following conversions: 1km=0.6214mi and 1gal=3.78L.
September 8, 2013 by Anonymous

chemistry
In Europe, gasoline efficiency is measured in km/L. If your car's gas mileage is 25.0mi/gal , how many liters of gasoline would you need to buy to complete a 142-km trip in Europe? Use the following conversions: 1km=0.6214mi and 1gal=3.78L.
February 11, 2014 by Marzia

Chemistry
In Europe, gasoline efficiency is measured in km/L. If your car's gas mileage is 38.0mi/gal , how many liters of gasoline would you need to buy to complete a 142-km trip in Europe? Use the following conversions: 1km=0.6214mi and 1gal=3.78L.
October 5, 2014 by Chirst

physics
A person with skin area 2 m2 and 0.97 radiation efficiency is at rest and has a skin temperature of 28 C in an environment with a uniform temperature of 22 C. Calculate the heat loss rate if the skin temperature is raised by 8 C by vigorous exercise.
August 18, 2011 by KAIT

physics
A person with skin area 2 m2 and 0.97 radiation efficiency is at rest and has a skin temperature of 28 C in an environment with a uniform temperature of 22 C. Calculate the heat loss rate if the skin temperature is raised by 8 C by vigorous exercise.
August 18, 2011 by KAIT

physics
A person with skin area 2 m2 and 0.97 radiation efficiency is at rest and has a skin temperature of 28 C in an environment with a uniform temperature of 22 C. Calculate the heat loss rate if the skin temperature is raised by 8 C by vigorous exercise.
August 18, 2011 by KAIT

math
twelve cans, each 6.6 cm in diameter are packed into a carton. what is the efficiency of this package; that is, what percent of the total base area of the carton is covered by the cans? (use the formula A = πr^2 to calculate the area of a circle)
September 25, 2013 by Evelyn

POL201
Fredick Winslow Tylor was concern with all but the following a. making workers feel appreciated b. making 1st class worker out of 2ne class worker c. efficiency d. good management
April 28, 2014 by Ella

Biology:respiration in plant
How do i define the efficiency of respiration in words Since this is not my area of expertise, I searched Google under the key words "plant respiration" to get these possible sources: http://www.sciencedaily.com/releases/2004/07/040723093305.htm http://photoscience.la.asu.edu/...
March 15, 2007 by bonita

Science
What is the difference between conserving energy and energy efficiency? What are 5 benefits of conserving energy?
June 11, 2014 by Anonymous

college/Agricultural policy
Find the price and quantity that will satisfy the condition fpr static efficiency in the use of water resources given the following demand and supply equations for water: Demand: P=600-Q Supply: P=2+Q
February 17, 2009 by jesse

algebra
Testers drive 8 vehicles 200 miles on a test track at the same speed. The table shows the amount of fuel ea vehicle uses. Find the fuel efficiency in miles per gallon for each vehicle.
October 22, 2009 by Tarik

physics
Water flows (v approx. 0) over a dam at the rate of 660 kg/s and falls vertically 86 m before striking the turbine blades. Calculate the rate at which mechanical energy is transferred to the turbine blades, assuming 53% efficiency.
October 5, 2010 by Kim

PHYSICS ---HELP!
Water flows approx. 0 over a dam at the rate of 660 kg/s and falls vertically 86 m before striking the turbine blades. Calculate the rate at which mechanical energy is transferred to the turbine blades, assuming 53% efficiency.
October 6, 2010 by Leila

Physics
Water flows approx. 0 over a dam at the rate of 660 kg/s and falls vertically 86 m before striking the turbine blades. Calculate the rate at which mechanical energy is transferred to the turbine blades, assuming 53% efficiency.
October 6, 2010 by Rick

business
What is the value to the company and the supplier in developing and implementing a Third Party Supplier Relationship Management (3 P.L. S.M.S.) System? How can such a system provide greater efficiency? In 200-250 words, describe the value to the organization.
January 9, 2013 by Jared

Physics
A 225 kg box is loaded onto a truck by pulling it up an inclined plane (10 m hypotenuse difference) by a force that is parallel to the incline (T = 315 N). If the bed of the truck is 1.2 m above the ground what is the efficiency of this simple machine in loading the box into ...
April 7, 2011 by Matt

Physics :D
An electric motor is tested and found 76% efficient. if the input work is 400 J, what is the motors output work? A ramp has a length of 4m and a height of 1.5m. If a man pushes a 40N crate to the top of the ramp with a force of 60N, what is the efficiency of the ramp? How do I...
December 12, 2011 by Kellie

astronomy
Hydrogen accounts for 71% of the Sun's mass today. If only one tenth of that Hydrogen burns into Helium, how long could the Sun keep shining at its present luminosity? Note that Hydrogen fusion has an efficiency of about 0.7% Time in years:
May 14, 2014 by keitanako

Electricity
A motor running at its rated power provides 2.6 lb-ft torque at its rated speed of 2020 rpm. The motor draws 5.6-A from a 230-V supply at a phase angle of 37 degrees. Determine the following: The horsepower delivered by the motor, The efficiency of the motor.
January 24, 2008 by Nick

physics/ math
Water flows (v approx. 0) over a dam at the rate of 660 kg/s and falls vertically 86 m before striking the turbine blades. Calculate the rate at which mechanical energy is transferred to the turbine blades, assuming 53% efficiency.
October 5, 2010 by josh

Physics
container factory uses a 450 W motor to operate a conveyor belt that lifts containers from one floor to another. To lift 250 1-kg containers a vertical distance of 2.4 m, the motor runs for 45 s. What is the efficiency of the motorized conveyor system?
July 18, 2012 by Rob

Physics
container factory uses a 450 W motor to operate a conveyor belt that lifts containers from one floor to another. To lift 250 1-kg containers a vertical distance of 2.4 m, the motor runs for 45 s. What is the efficiency of the motorized conveyor system?
July 18, 2012 by Rob

Science
container factory uses a 450 W motor to operate a conveyor belt that lifts containers from one floor to another. To lift 250 1-kg containers a vertical distance of 2.4 m, the motor runs for 45 s. What is the efficiency of the motorized conveyor system?
July 18, 2012 by Jack Hill

Physics
A particular microwave oven operates at 1000W. The wavelength of the microwave is 12.0cm. You decide that you like your snack to absorb 1.2 x 10^28 photons. For how much time should you have the oven on- with your snack inside of course. Assume 100% efficiency.
August 1, 2012 by Rosh

science
a river does 6500J of work on a water wheel every second.The wheels efficiency is 12 percent.A)How much work in joules can the axle of the wheel do in a second? B)What is the power output of the wheel?
March 3, 2013 by kayla

physics
A Norwegian hydroelectric power plant is built on a small river. The water falls 400m from the mountains to the turbines. The flow is 80 m3/s. Calculate: a) the produced electric power; b) the value of production of one day (unit price = 10 cnt/kWh). The efficiency of ...
September 30, 2010 by winget

English,maths,physics,chemistry
Topic:machine,a block and tackle of 6 pulleys is used to raise a load of 300N steadily through a height of 30m.if the work done against friction is 2000J. calculate:the work done by effort,the efficiency of the system,the applied effort.
March 19, 2012 by Chigozie

physics 2
a certain 12v storage battery with an internal resistance of 12 ohms delivers 80 A when used to crank a gasoline engine. if the battery mass is 20 kg and it has average specific heat of 0.2 kcal/kg K. what is its rise in temperaure during 1 min of cranking the engine. assume ...
February 20, 2014 by Anne

Science
A man drinks a bottle of beer and proposes to work off its 460 kj by exercising with a 20 kg barbell. If each lift of the barbell from chest height to over his head is through 60 cm and the efficiency of his body is 10 percent under these circumstances, how many times must he ...
August 31, 2007 by Michele

science
A crane whose motor has a power input of 5.0 kW lifts a 120-kg load of bricks through a height of 30m in 90s. what is the efficiency of the crane, which is the ratio between its output power and its input power.
February 19, 2007 by tasha

physics
The maximum possible efficiency of a heat engine which exhaust its heat at a temperature of 46.0o is 39.0 percent. What is the minimum value of the temperature at which the engine takes in heat? (in oC).
November 16, 2012 by Erika

physics
The maximum possible efficiency of a heat engine which exhaust its heat at a temperature of 46.0o is 39.0 percent. What is the minimum value of the temperature at which the engine takes in heat? (in oC).
November 18, 2012 by chelsea

Algebra
A machine has a work output of 28ax^5 joules and a work input of 7a^2x^6 joules. What is the efficiency of the machine?
August 5, 2012 by Lizzie

PHYSICS
Given: The energy equivalent of one gallon of gasoline is 1.3 × 108 J. A compact car has a mass of 847 kg, and its efficiency is rated at 18.1%. (That is, 18.1% of the input power available is delivered to the wheels.) Find the amount of gasoline used to accelerate the car ...
April 7, 2011 by anonymous

Physics
1. A 2.5kg rock is dropped from a 350m cliff. It hits the ground with a speed of 60 m/s. What percent of its mechanical energy was lost to air resistance? -the answer is 48% 2. A motor uses 5500J to lift a 35kg object a vertical distance of 12m. What is the efficiency of the ...
June 17, 2012 by lenny

Physics
A solar cell with dimensions 12cm x 12cm is illuminated at standard test conditions. The cell presents the following external parameters: Voc=0.8V,Isc=3A,Vmp=0.75V,Imp=2.5A Calculate the fill factor in percentage [%]: Calculate the efficiency (in %):
October 3, 2014 by qwerty

French
I am doing a presentation on the efficiency of appliances. I am going to be comparing the past and the present and then France and the US. Do you guys know of any good websites that would talk about any of this. All I can really find is different brands of appliances and then ...
April 4, 2012 by rebekah

french
I am doing a presentation on the efficiency of appliances. I am going to be comparing the past and the present and then France and the US. Do you guys know of any good websites that would talk about any of this. All I can really find is different brands of appliances and then...
April 5, 2012 by rebekah

Physics
elbow raises a 1200 N piano a distance of 5 meters using a set of pulleys. elbow pulls in 20.0 meter of rope while exerting a force of 340 N. a) what is the work output? b) what is work input c) what is the mechanical advantage of this machine? d) what is the efficiency of ...
November 3, 2013 by Andy

social studies
to achieve full employment without inflation; > to restore external equilibrium and defend the dollar; > to enhance the efficiency and flexibility of our private and public economies; > to widen the benefits of prosperity; > to improve the quality of American life...
February 6, 2010 by love

Physics
Electric stairs bring people up from Newyork metro station. Calculate the power consumption of the stairs during the rush hour if the stairs elevate 120 persons per minute up to the street level 30 meters above. Assume that the average weight of passengers is 70 kg and the ...
September 30, 2010 by winget

economics
Need Help on my final exam. Willing to reward for help. 1. Relate the legal concept of tort to the economic concept of externalities. 2. Does the existence of a tort necessarily mean that economic inefficiency is present? How do torts differ from other types of externalities? ...
May 11, 2009 by Sung

Chem
To purify acetanilide by a recrystallization procedure. a) Describe how you would decide what solvent to use in order to accomplish this objective. b) How you would calculate the effeciency of your recrystallization procedure with respect to; --- Improvement in purity across ...
September 17, 2014 by JuYoung

physics
A theoretical gasoline engine runs with 76 percent efficiency. It is calculated that it expels 3.25*10^4 J of heat. a. Find the heat absorbed in one cycle. b. Find the work output in one cycle.
March 17, 2007 by anonymous

economic
ASSIGNMENT 5: DUE 4.00PM, 4/09/08 1. A competitive firm uses coal to generate electricity. Its supply curve is Q = 300P - 1000, where Q is quantity produced (units of electricity per year), and P is market price of electricity per unit. The production of each unit of ...
September 2, 2008 by qweiop90

Physics 1
The label on a candy bar says 470 Calories. Assuming a typical efficiency for energy use by the body, if a 74 person were to use the energy in this candy bar to climb stairs, how high could she go?
March 30, 2010 by Naso

physics
The label on a candy bar says 470 Calories.Assuming a typical efficiency for energy use by the body, if a 74 kg person were to use the energy in this candy bar to climb stairs, how high could she go?
March 31, 2010 by ziddi

History
Efficiency was a central theme of the reform movement. Who of the following was not an example of someone striving to examine every aspect of life itself and determine, often through new scientific principles, how to do more work with less energy? (Points : 1) Frederick W. ...
July 15, 2012 by Geraline

physics
The label on a candy bar says 410 Calories.Assuming a typical efficiency for energy use by the body, if a 74kg person were to use the energy in this candy bar to climb stairs, how high could she go?
November 13, 2010 by Isabel-A

CHEMISTRY HELP !!!!
Al3+ is reduced to Al(s) at an electrode. If a current of 2.75 ampere is passed for 36 hours, what mass of aluminum is deposited at the electrode? Assume 100% current efficiency. a. 9.2 x 10–3 g b. 3.3 x 101 g c. 9.9 x 101 g d. 1.0 x 102 g e. 3.0 x 102 g I think it is either B...
May 7, 2014 by Anonymous

physic
A turnbuckle is needed to apply an 8kN force on a cable. If the efficiency of the turnbuckle is 40% and the force applied is 159.155N with a lever of 20cm in length. a) Find the mechanical advantage. b) Find the velocity ratio. c) Find the mean pitch of thread.
April 2, 2009 by luc

Physics
Simple Machines A simple wheel and axle has a wheel diameter of 2.3m and an axle diameter of 92mm. If an effort of 26N is required to raise a mass of 16 kg what is the efficiency of the machine? A- 2.46% B- 95.3% C- 24.1% D- 20.1% E- 65.5% I am having a problem determining ...
May 11, 2013 by Danny

Algebra
The power P (in watts) generated by a windmill that has efficiency E is given by the formula P = 0.31ED^2V^3, where D is the diameter (in feet) of the windmill blades and V is the wind velocity (in ft/sec). Approximate the wind velocity necessary to generate 30,000 watts if E...
September 24, 2014 by Ashton

physics
A small motor draws a current of 1.76 A from a 110 V line. The output power of the motor is 0.20 hp. (a) At a rate of $0.060/kWh, what is the cost, in cents, of operating the motor for 4.0 h? (b) What is the efficiency of the motor? for (a) i am doing IV*hours*price and its ...
March 14, 2011 by julie

physics
you spend 30.0 minutes on a stair-climbing machine, climbing at a rate of 80 steps per minute, with each step 8.00 inches high. If you weigh 150 lb and the machine reports that 690 kcal have been burned at the end of the workout, what efficiency is the machine using in ...
December 4, 2011 by Shawn

Physic II
a carnot heat engine operates between reservoirs at 550K and 300K, discarding 1500J of heat in each cycle. A) What is the engine's efficiency? B) How much heat is supplied to the engine by the hot reservoir in each cycle?
April 30, 2014 by rujiye

Physics
A wind turbine has blades that sweep an area of 2000m2. It converts the power available in the wind to electrical power with an efficiency of 50%. What is the electrical power generated if the wind speed is 10ms–1? (The density of air is 1.3 kg m–3.)
June 3, 2014 by Me

managerial Accounting
Smith Co uses a standard cost system for its single product in which variable manufacturing overhead is applied on the basis of direct labor hours. The following information is given: 4 Standard costs per unit: Raw materials (1.5 grams at $16) $24.00 Direct labor (0.75 hour at...
September 30, 2010 by Klatoyaa

Physics
the input and output of hydraulic jack are respectively 1 cm and 4 cm in diameter. A lever with a mechanical advantage of 6 is used to apply force to the input piston. How much mass can the jack lift if a force of 180 N is applied to the lever and efficiency is 80%
October 22, 2012 by Owen

physics
A boy is pushing his sled up a snowy slope. The sled has a mass of 20.4 kg and weighs 200 N. The boy pushes with a constant force of 75 N. The sled travels a distance of 10 m and gains 3 m in height. When the sled reaches the top, it is traveling 2 m/s. What is the efficiency ...
March 27, 2013 by bill

physical science
A machine is supplied energy at a rate of 4,000 W and does useful work at a rate of 3,760 W. What is the efficiency of the machine? A. 92 percent B. 94 percent C. 97 percent D. 96 percent
May 27, 2014 by Unmei

Literacy
Efficiency can best be defined as A. the amount of output generated in a given amount of time. B. producing items using the least amount of resources. C. using high-tech equipment on a job. D. producing as much as you can as fast as you can, regardless of cost. my answer is B
January 21, 2012 by Heather

Help! Physics!!
Water flows (v = approx 0) over a dam at the rate of 660 kg/s and falls vertically 86 m before striking the turbine blades. Calculate the rate at which mechanical energy is transferred to the turbine blades, assuming 53% efficiency. Express your answer using two significant ...
October 7, 2010 by Melissa

Water Treatment
a) Which five quality parameters of the raw water may not meet drinking water standards? Bacterial colony count (less than 100 cfu/ml) Ammonium (less than 0.2 mg/l) Nitrite (less than 0.1 mg/l) Nitrate (less than 50 mg/l) Iron (less than 200 µg/l) Turbidity (less than 4 FTE) ...
October 18, 2013 by youlife2015

Water-Treatment
a) Which five quality parameters of the raw water may not meet drinking water standards? Bacterial colony count (less than 100 cfu/ml) Ammonium (less than 0.2 mg/l) Nitrite (less than 0.1 mg/l) Nitrate (less than 50 mg/l) Iron (less than 200 µg/l) Turbidity (less than 4 FTE) ...
October 19, 2013 by youlifex

Water Treatment
a) Which five quality parameters of the raw water may not meet drinking water standards? Bacterial colony count (less than 100 cfu/ml) Ammonium (less than 0.2 mg/l) Nitrite (less than 0.1 mg/l) Nitrate (less than 50 mg/l) Iron (less than 200 µg/l) Turbidity (less than 4 FTE) ...
October 20, 2013 by youlifex

Chem
Hi! I need help with this problem, also I was wondering what kind of problem is this... limiting reactant?calculate the mass of hydrogen cyanide that could be produced by the complete reaction of 500.0 g of ammonia, 700.0 g of oxygen and 400.0 g of methane according to the ...
April 20, 2010 by Anonymous

physics
An electric motor runs at a constant rotational frequency of 3000 r/min and has the load of 75 Nm and a 5,0 Nm extra load of friction and gear. The efficiency of the motor is 78%. a) What is the input power of the motor? b) What is the work done by the motor in 24 hours and c...
September 16, 2014 by ade

UNCP
In a study of worker efficiency at Wong Laboratories it was found that the number of components assembled per hour by the average worker t hours after starting work could be modeled by the formula. Rewrite the formula by factoring the right-hand side completely. b) Use the ...
January 7, 2011 by casey

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