Answer:A rectangular region ABCD is to be built inside a semicircle of radius 10 m with points A and B on the line for the diameter and points C and D on the semicircle with CD parallel to AB. The objective is to find the height h * that maximizes the area of ABCD.
Formulate the optimization problem.
Explanation:A rectangular region ABCD is to be built inside a semicircle of radius 10 m with points A and B on the line for the diameter and points C and D on the semicircle with CD parallel to AB. The objective is to find the height h * that maximizes the area of ABCD.
Formulate the optimization problem.
Answer:
The volume flow rate necessary to keep the temperature of the ethanol in the pipe below its flashpoint should be greater than 1.574m^3/s
Explanation:
Q = MCp(T2 - T1)
Q (quantity of heat) = Power (P) × time (t)
Density (D) = Mass (M)/Volume (V)
M = DV
Therefore, Pt = DVCp(T2 - T1)
V/t (volume flow rate) = P/DCp(T2 - T1)
P = 20kW = 20×1000W = 20,000W, D(rho) = 789kg/m^3, Cp = 2.44J/kgK, T2 = 16.6°C = 16.6+273K = 289.6K, T1 = 10°C = 10+273K = 283K
Volume flow rate = 20,000/789×2.44(289.6-283) = 20,000/789×2.44×6.6 = 1.574m^3/s (this is the volume flow rate at the flashpoint temperature)
The volume flow rate necessary to keep the ethanol below its flashpoint temperature should be greater than 1.574m^3/s
<h2>
˜”*°•.˜”*°• Question •°*”˜.•°*”˜
</h2>
<em>What Member function places a new node at the end of the linked list?
</em>
<h2>
˜”*°•.˜”*°• Answer •°*”˜.•°*”˜</h2>
appendNode
<h2>˜”*°•.˜”*°• Explanation •°*”˜.•°*”˜</h2>
The appendNode() member function places a new node at the end of the linked list. The appendNode() requires an integer representing the current data of the node.
<h2>˜”*°•.˜”*°• Details •°*”˜.•°*”˜</h2>
Subject: Coding (?)
Grade: College
Keywords: Function, linked list, appendNode, integer
Hope this helped. <3
Answer:
80 kW; 11 kW; 8 kW; 0.6
Explanation:
Part 1
Isentropic turbine efficiency:
Part 2
Coefficient of performance COP is defined by:
Part 3
(a)
Energy balance for a refrigeration cycle gives:
(b)
Answer:
D. Brake
Explanation:
NJMVC is an acronym for New Jersey Motor Vehicle Commission and it is an agency of government that was established in 2003. NJMVC is saddled with the responsibility of inspecting, titling of number plates and registration of motor vehicles, as well as licensing of drivers in New Jersey, United States of America.
The NJMVC subject the applicants (drivers) to a series of test before they are issued a valid driver's license, some of these tests include;
1. Vision test.
2. Knowledge test.
3. Road test.
All of the above mentioned tests must be passed by a driver before he or she are issued a valid driver's license.
Some of the test drive requirements are;
- Valid registration documents.
- Valid sticker of inspection.
- No obstacle or center consoles should prevent the examiner from accessing both the foot brake and parking brake.
Hence, NJMVC will reject a vehicle from the road test if the examiner does not have access to a brake. Thus, the brakes are required to be in good working condition prior to the road test.
However, if an applicant (driver) passes the road test he or she would be issued an authorization for licensing by the examiner and then a digital driver's license by the motor vehicle commission.
