Astrip ofmetal is originally 1.2m long. itis stretched in three steps: first to a length of 1.6m, then to 2.2 m, and finally to 2.5 m. compute the true strain after each step, and the true strain for the entire process (i. e. for stretching from 1.2 m to 2.5 m).

strains for the respective cases are

0.287

0.318

0.127

and for the entire process 0.733

Explanation:

The formula for the true strain is given as:

Where

True strain

l= length of the member after deformation

original length of the member

Now for the first case we have

l= 1.6m

thus,

similarly for the second case we have

l= 2.2m

  (as the length is changing from 1.6m in this case)

thus,

Now for the third case

l= 2.5m

thus,

Now the true strain for the entire process

l=2.5m

thus,

energy can cross the boundaries of a closed system in the form of heat and mass

explanation:

d would be the most obvious choice to this question. leaders are supposed to herd their underlings like a shepherd to sheep. a leader should also listen to others when they are talking to one other to gain a better understanding of their mission and surroundings.

explanation: