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The rigid beam is supported by a pin at A and wires BD and CE. If the load P on the beam causes the end C to be displaced 10 mm downward, determine the normal strain developed in wires CE and BD.
Q1.5 What physical phenomena (other than a pendulum or ce- sium clock) could you use to define a time standard?
Which of the following wavelength regions cannot be studied with telescopes on the ground?A) radio wavesB) ultravioletC) X raysD) both B and CE) both A and C
