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!
1. In living things, energy is stored in the molecule adenosine triphosphate, called ATP for short. ATP is said to act like a battery, storing energy when it is not needed and instantly releasing energy when it is required. Investigate how energy is stored and the role of ATP in biological processes. Write a report including at least three references.
2. The global reach of the Internet supports a rapid increase in consumer and business e-commerce. Some say e-commerce will result in net reductions in both energy use and global climate change. Using the Internet, interviews with experts, and design-group brainstorming, identify several major ways e-commerce can lead to such reductions. Report your findings in a memorandum having at least three references.
3. Develop a list of the most common residential cooling options in your locale. For these options and assuming a 2300-ft2 home, compare installation cost, carbon footprint, and annual electricity charges. Which option is the most economical if a 12-year life is assumed? What if electricity costs twice its current cost? Prepare a poster presentation of your findings.
show how did you do the maintenance during your workshop machines were sent to your workshop from a big
Steam at 500 kPa, 300 degrees C is used to heat cold water at 15 degrees C to 75 C for a domestic hot water supply. How much steam per kilogram of liquid water is needed if the steam should not condense?
in many vacuum systems there is a gate valve consisting of a gasketed metal plate that acts to isolate the chamber
Liquid oxygen (LOX) is being shipped through interstellar space in a spherical tank, constructed of several layers of material. The tank has an inner diameter of 5m, and the LOX is contained in a 15cm-thick shell of polycrystalline fused silicon diox..
a post-hole digger is mouted on a tractor. the power unit of the machine applies a torque of 800 lb.in to the auger and
consider a plane wall experiencing transient 1-d heat conduction in x-direction. draw the temperature profile t as a
What is the angular velocity Wcd (t)?
Consider the truss shown in(Figure 1).Suppose thatF=5.5kN. Determine the force in member EF,CF,BC and state if the member is in tension or compression.
Calculate the fugacity of liquid hydrogen sulphide in contact with its saturated vapor at 25.5C and 20 bars. The vapor pressure of pure water at 310.6 K is 6.455 kPa. Compute the fugacity of pure liquid water at 310.6 K when it is under a pressure of..
Steam at 75kPa and 13 percent quality is contained in a spring loaded piston-cylinder device with an initial volume of 3.90m^3. Steam is now heated until its volume is 9.75m^3 and its pressure is 300kPa. Determine the heat transferred to and the word..
the 1.3-lb collar slides with negligible friction on the fixed rod in the vertical plane. if the collar starts from
A brittle cast iron bar is heated to 140°C and then rigidly clamped so that it cannot contract when cooled. The bar is seen to fracture when the temperature has fallen to 80°C. What is the ultimate tensile strength of the cast iron?
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