An aluminum bar 600mm long with diameter 400mm has a hole drilled in the center of the bar. The hole is 30mm in diameter and is 100mm long. If the modulus of elasticity for the aluminum is 85GN/m2. Calculate the total contraction on the bar due to a compressive load of 180KN.

Which of the following statements regarding emotion and altruism is true

Can you receive a shock severe enough to prevent you from releasing the wire from an ordinary outlet with dry hands?

Which of the following processes within viral replication is the greatest source of genetic variation in rna virus populations? a) high mutation rate due to lack of proofreading of rna genome replication errors. b) transcription from the host cell rna polymerase introduces numerous mutations. c) capsid proteins from the host cell can replace the viral capsid. d) viral rna is translated by host cell ribosomes.