Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
An electric motor is rated at 10 horsepower (HP) and costs $800. Its full load efficiency is specified to be 85%. A newly designed, high-efficiency motor of the same size has an efficiency of 90% but $1200. Is is estimated that the motors will operate at a rated 10HP output for 1500 hours a year, and the cost of energy will be $0.07 per kilowatt-hour.
Each motor is expected to have a 15 year life. At the end of 15 years, the first motor will have a salvage value of $50 and the second motor will have a salvage value of $100. consider the MARR to be 8%. (note : 1HP=0.7457 kw). Determine which motor should be installed based on the PW criterion.
The temperature of the gas remains constant during the process. determine A.) the amount of heat transfer, B.) the final pressure in the cylinder, and C.) the distance that the piston is displayed.
Determine the magnitude and direction of the force P in so that the resultant of P and the 900N force is a vertical force of 2700N directed downward using.
a police officer stops a speeding driver on saturday nigt and gives hima breathalzer test. the test shows that his estimated blood alcohol content is above .08 g/dl, and this is considered evidence of driving while intoxicated
An engineering student has been given the assignment of designing a hydraulic holding system for a hay baling system. The system has four cylinders with 120 mm diameter pistons with a stroke of 0.320 m.
If friction between the cars and the rails is neglected, what were the magnitude and the direction of the velecity of the cars after the collision?
one of the wells pumps at a rate of 1240 m3/day. the second well pumps at 850 m3/day.if the aquifer has a transmissivity of 2000 m2/day and a storage coefficient of 4x10^-4, when would the wells start interfering with each other.
What is the TCE concentration in ppm if the tank is held at (a) 4 degrees C and (b) 35 degrees C (c) What is the TCE concentration in ppm if the tank is filled with hexane instead of water
A time interval of 1.5 hours is recorded for a 6 inch drop of water level in a percolation (perc) test hole. What is the perc rate. How many laterals would be required in the leaching field to serve a 5 bedroom house,
Use A992 steel (Fy=50ksi). In the plane perpendicular to the frame, the system is braced with supports at the top and bottom. Use stiffness reduction factor τ to determine effective length k
The force exerted on the hand causes torsion of the humerus. Let us assume the cross-section of this wrestler's humerus is approximated as hollow (the marrow has little structural strength) with an outer diameter of 19.0 mm and an inner diameter o..
If a unit mass of groundwater accelerates from rest to an average linear velocity of 1 m per year and climbs a vertical distance of 1 m, compare the ratio of kinetic energy to the potential energy of the unit of groundwater.
Given the following geometry of an intersection: Four lanes fornorth and southbound traffic; two lanes for east and west boundtraffic. The peak hour volume for: northbound traffic is 1400vehicles with 10% left and right turns,
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd