Derek was presenting to a group of his colleagues about the…

Derek was presenting to a group of his colleagues about the importance of avoiding sexual misconduct.  At the start of his speech he told a funny joke that got the listener’s attention before explaining to them why they needed to avoid such behavior.  The purpose of his presentation was meant to _____. 

The rigid beam in the figure below consists of a pin support…

The rigid beam in the figure below consists of a pin support at A and a roller support at B. There is a uniform load on the first 2 m of the beam and a trapezoidal load on the right 3m of the beam, as shown.  In your supporting calculations, draw the free body diagram and determine the reactions at A and B.  Enter the vertical reaction at B in the box below. 

Basic chemistry lab equipment (~15 min)   1) A beaker is us…

Basic chemistry lab equipment (~15 min)   1) A beaker is used mostly to [ans1] 2) To measure volume commonly we use [ans2] 3) Small reactions are performed in [ans3] 4) A bunsen burner can be used to [ans4] 5) To remove a solid from a bottle we can use a [ans5]