Now assume that tweedledum applies an upward force at the far left end of the board (fleft) and that tweedledee applies an upward force at the far right end of the board (fright). with what force does each person lift? recall that the weight of the board is w.

The rigid beam is supported by the three suspender bars. bars ab and ef are made of aluminum and bar cd is made of steel. if each bar has a cross-sectional area of 450 mm2, determine the maximum value of p if the allowable stress is (σallow)st = 200 mpa for the steel and ( σallow)al = 150 mpa for the aluminum. est = 200 gpa and eal = 70 gpa.

Aphysical change is a change in the size, shape,, or stafe of matter true or false

Two polarizers are oriented at 40∘ to each other and plane-polarized light is incident on them. if only 16 percent of the light gets through both of them, what was the initial polarization direction of the incident light?