what is the difference in meaning in both examples?<br/><br/>Example 1<br/><br/>1 - she has worked here for 5 years. <br/><br/>2 - she worked here for 5 years. <br/><br/>Example 2<br/><br/>1 - We have tried requesting a new password, but that didn’t work either.<br/><br/>2 - We tried requesting a new password, but that didn’t work either.