A universitys campus has 20000 computers with cathode-ray

Assignment Help Mechanical Engineering
Reference no: EM13627520

A university's campus has 20,000 computers with cathode-ray tube monitors that are powered-up even when the computer is not being used. This type of monitor is relatively inefficient, and it draws more power than a flat panel display.

(a) If each cathode-ray tube monitor draws 0.1 kW of power over the course of a year, how much energy has been consumed?

(b) At the cost of seven cents per kW-h, how much does it cost the university each year to keep these monitors powered-up?

(c) On average, a computer monitor that has the automatic sleep feature enabled will consume 72% less energy than one that is continually powered. What is the cost savings associated with enabling this feature on all of the university's computers?

Reference no: EM13627520

Questions Cloud

Geothermal energy systems extract heat that is stored below : geothermal energy systems extract heat that is stored below the earths crust. for every 300 ft below ground the
As the container expands the pressure increases by a factor : a container with volume 213 cubic cm is heated and allowed to expand to 1.44 times the original volume. as the
Finally the air is isochorically cooled returning to its : a mass of 1.5kg of air enters a combustion chamber at atmospheric conditions of 100 kpa and 25 degrees c at state 1.
The average weight of adult men is 181 pounds with a : the average weight of adult men is 181 pounds with a standard deviation of 40 pounds.thirty five 35 men were asked
A universitys campus has 20000 computers with cathode-ray : a universitys campus has 20000 computers with cathode-ray tube monitors that are powered-up even when the computer is
A uniform line charge of linear charge density l 100 ncm : a uniform line charge of linear charge density l 10.0 ncm extends from x 5 m to x 8 m. the magnitude of the electric
A given liquid has a temperature 178 celcius at a pressure : a given liquid has a temperature 178 celcius at a pressure of 47 mpa. if the enthalpy of the saturated liquid at the
A printing pigment solution having a viscosity of 005 n s : a printing pigment solution having a viscosity of 0.05 n s m2 and the yield stress of 0.6 nm2 flows in a three meter
A disk of radius b 100 cm has a total charge of q 80 pc : a disk of radius b 10.0 cm has a total charge of q 8.0 pc. what is the surface charge density?a 2.5x102 cm2b 8.0x

Reviews

Write a Review

Mechanical Engineering Questions & Answers

  Assuming a reasonable value vg for the specific volume of

a vessel of volume v 6 liters contains water along with its saturated vapor under a pressure of 40 atmospheric and a

  Determine the a amount of paddle-wheel work in btu after 45

an insulated rigid tank initially contains 1.8 ibm of helium at 82 f and 45 psia. a paddle wheel with a power rating of

  If the inlet axial mach number is 52 calculate the mean

a high pressure axial compressor for a jet engine rotates at 15000 rpm with an overall stagnation pressure ratio of

  Using this form for the diagonal nodes and appropriate

the diagonal of a long triangular bar 45-45-90 triangle section is well insulated. while sides of equivalent length are

  The bar is loaded axially until it elongates 65mm and then

a bar of length 2.0 m is made of a structural steel having the stress-strain diagram shown in the figure. the yield

  Calculate the contact forces at a and b

the 50-kg homogeneous smooth sphere rest on the 30 degree incline A and bears against the smooth vertical wall B. calculate the contact forces at A and B.

  Determine an appropriate value for the rods diameter to

an engineer determines that a 40-cm-long rod of 1020 grade steel will be subjected to a tension of 20 kn the following

  What are different types of nuclear reactors

What are different types of Nuclear reactors in operation in thev world.

  A temperature scale is defined by the equation tsti lim

a temperature scale is defined by the equation tsti lim pi-0 pspi1.36609 as in gas thermomery but now the reaumur

  During a gust of wind the blades of the windmill are given

during a gust of wind the blades of the windmill are given an angular acceleration of 0.2 rads2 where is measured in

  Consider one kmol of methane at a pressure of 232 bar and a

consider one kmol of methane at a pressure of 23.2 bar and a temperature of 200 k.a is this methane an ideal gas? show

  Starting from rest a particle moving in a straight line

starting from rest a particle moving in a straight line has anacceleration of a 2t - 6 ms2 where t is inseconds. what

Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd