The truss shown has a horizontal load of P= 8.8 kN applied at joint B.  

Using the Method of Joints, calculate the force in member BC (in kN). Indicate whether the member is in tension or compression by using the '-' for compression and no sign for tension. 

Do NOT include any units.

Give your answer to 1 decimal place.

When using Method of Joints, which node would you analyse to determine the internal forces in members AB & BC of the truss shown?

When using Method of Joints, which node(s) could your analysis begin at to determine the forces in each member of the truss shown? Assume the reaction forces are all known.  

Quaternary structures:

A protein structure was elucidated and found to contain a specific pattern of alpha helices and beta sheets previously observed in many different proteins. This is an example of: 

In the truss system below, with the loading as shown, member BC;

Classify the following trusses as either unstable (U), determinate (D), or indeterminate (I).

(a) 

(b)

(c)

All of the following factors should be considered when selecting a scheduling algorithm, except? (Choose two)

Which of the following statements about process states is correct?(Choose two)

Which of the following are key activities of memory management in an operating system? (Choose two)