The uniform 100-kg i-beam is supported initially by its end rollers on the horizontal surface at a and b. by means of the cable at c, it is desired to elevate end b to a position 3 m above end a. determine the required tension p, the reaction at a, and the angle q made by the beam with the horizontal in the elevated position.

I attached a free body diagram for a better understanding of this problem.

We start making summation of Moments in A,

Then we make a summation of Forces in Y,

At the end we calculate the angle with the sin.

answer: electrons

the temperature and the pressure affect solubility. temperature affects by changing the properties of the solvent. the increase in pressure increases solubility, the decrease in pressure decreases solubility.