1. True or False: When two batteries are wired in Series the Volts go up and the Amp Hours stay the same. 2. True or False: When
1 answer:
You might be interested in
A 260 ft (79.25m) length of size 4 AWG uncoated copper wire operating at a temperature of 75°c has a resistance of 0.0792 ohm.
Explanation:
From the given data the area of size 4 AWG of the code is 21.2 mm², then K is the Resistivity of the material at 75°c is taken as ( 0.0214 ohm mm²/m ).
To find the resistance of 260 ft (79.25 m) of size 4 AWG,
R= K * L/ A
K = 0.0214 ohm mm²/m
L = 79.25 m
A = 21.2 mm²
R = 0.0214 *
= 0.0214 * 3.738
= 0.0792 ohm.
Thus the resistance of uncoated copper wire is 0.0792 ohm
Answer:
From the statements described above,The proposed software package Online Banking System(OBS) shall provide the following services to the customer(account holder)
Receive all transaction requests from the customers trough online to perform banking activities
Offer a variety of services in banking like:
Opening an account with facilities of Savings,Checking and CD
Issuing checks and check clearance
Transfer of funds between savings and checking account
Establishing a CD(Certificate of Deposit)
Performing routine activities like
Deposit or withdraw funds from a checking account
Closing an account in one of the following operation
Complete closure of account
Closing only savings account
Withdraw CD (on Maturity of CD deposits) and close CD account
Unlike traditional Banking system, OBS offers all the operations through On-line mode over the internet thereby it eliminates manual intervention for the banking transactions from the Bank's side for most of the transactions except some cases like verification of new account applications or complaint redressal and technical support .In such cases ,There will be some users of the software with special privileges to access certain services to perform activities like user data verification and technical support.
Step:1 Identification of actors and software entities for the system to be implemented
The following are the actors identified in the system
Actors:
The users of the proposed system were classified as:
Customer : A user with an active account
Guest user:The user who applies for an account
Administrator:Maintainsand Controls OBS
Manager: Manages the transactions and Banking related issues
Technical Manager: Resolves technical issues of customers
Software entities:
Bank database :Maintains the data of all user accounts
Application server : Maintains the application software components and hosts the OBS website
Automatic Clearing House system : Processes transactions for checks
Step 2: Designing use cases
Use case diagrams are used to describe the system model by representing a set of use cases .Each use case represents a set of actions performed on the system by an actor.
The following are the two approaches of representing the system in a use case model:
1.Representing a use case for actions done by actors e.g. login , logout,message etc.,
2.Representing a use case for business process(Business use cases) e.g. transfer,registration etc.,
The following is the description of five possible business use cases for the requirements specified above
Answer:
correct option is (B) 315,500
Explanation:
given data
volume = 320,000 yd³ = 8640000 ft³
dry unit weight = 106 pcf
moisture content = 18.2%
total unit weight = 122 pcf
moisture content = 16.7%
to find out
volume of borrow lyd needed
solution
first we get here weight of material that is
weight = volume × unit weight
weight = 8640000 × 122
weight = 1054080000 lb
that weight is weight of water + weight of solid so
0.167 × weight is weight of water + weight of solid ) = 1054080000 lb
and weight of solid =
weight of soil solid is = 903239075 pound
and weight of water = 150840925 pound
so volume of soil = 903239075 ÷ 106 lb/ft³ = 8521123.34 ft³
and volume required = 8521123.34 ft³ ÷ 27 ft³ = 315597.161 yd³
volume required = 315500 yd³
so correct option is (B) 315,500