Answer:
15.7 ; 78.5
Explanation:
Mechanical advantage of a screw = Circumference / pitch
Circumference = pi × d
Where :
pi = 3.142, D = diameter
Therefore ;
Circumference = 3.142 × (1/4) = 0.785 in
Pitch = 1/TPI
TPI (thread per inch) = 20
Pitch = 1/ 20 = 0.05
Mechanical advantage = 0.785 / 0.05 = 15.7
Resistance force if effort force is 5lb
Mechanical advantage = Fr / Fe
Fe = effort force, Fr = resistance force
15.7 = Fr / 5
Fr = 15.7 × 5 = 78.5 lbs
Explanation:
For other uses, see Table. An example table rendered in a web browser using HTML. A table is an arrangement of data in rows and columns, or possibly in a more ... The first row is not . is called Html
Answer:
A
Explanation:
Update
The listview can be called an arbitrary amount of times, different items may be passed and the cell can go from empty to non-empty and the other way round. ListView creates about as many cells as you see on screen and fills them with items. E.g. scrolling or modifications of the items list or resizing of the ListView can result in updates.
Override only
Reason because the same method speak is in the parent and child class
Answer:c)A digital document that is used to verify the owner's identity
Explanation: Certificate is termed as the digital document that helps in exchanging information or data with protection over the internet.It is used for the maintenance of authentication of user .They are provided with he username and password for the security which can be accessed by the authorized party only.
It verifies the the message sent is by the authorized user and the receiver the decrypts the message.Other options are incorrect because it does not encrypts the data rather has encrypted password and does not certify or change the key's strength .Thus, the correct option is option(c).
