When an object has the same number of positive and negative charges, its electrical charge will become neutral.
What is an electric charge?
When the matter is put in an electromagnetic field, it has an electric charge, which causes it to experience a force. A positive or negative electric charge can exist.
Now when the two equal magnitude charges with opposite natures come together they become neutral.
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Answer:
49 is equal to 7 times 7
Explanation:
A "perfect square" is a number that is the product of a whole number that is multiplied by itself.
In the example above, 49 is a perfect square because <em>it is the product of the square of 7</em>. If you multiply 7 by itself, the product is 49.
Other examples of perfect squares are:
25 = <em>25 is equal to 5 x 5</em>
100 = <em>100 is equal to 10 x 10</em>
81 = <em>81 is equal to 9 x 9</em>
16 = <em>16 is equal to 4 x 4</em>
64 = <em>64 is equal to 8 x 8</em>
Answer:
Yes, fracture will occur
Explanation:
Half length of internal crack will be 4mm/2=2mm=0.002m
To find the dimensionless parameter, we use critical stress crack propagation equation
and making Y the subject
Where Y is the dimensionless parameter, a is half length of crack, K is plane strain fracture toughness, is critical stress required for initiating crack propagation. Substituting the figures given in question we obtain
When the maximum internal crack length is 6mm, half the length of internal crack is 6mm/2=3mm=0.003m
and making K the subject
and substituting 260 MPa for while a is taken as 0.003m and Y is already known
Therefore, fracture toughness at critical stress when maximum internal crack is 6mm is 42.455 Mpa and since it’s greater than 40 Mpa, fracture occurs to the material
Answer:
Dalton
The part of the close-out report that would describe how he would plan and manage projects in the future is:
summary of project management effectiveness
Explanation:
The Project Close-out Report is a project management document, which identifies the variances from the baseline plans. These variances are specified in terms of project performance, project cost, and schedule. The project close-out report records the completion of the project and the subsequent handover of project deliverables to others. The project management effectiveness summary details the project's objectives and the achievements recorded, including the lessons learned.