As the size of coarse aggregate increases, the roughness of the crack decreases. This allows higher shear stresses to be transferred across the crack.

A 125-mm-long beam supports a load of P = 40 N at midspan. The cross section is rectangular with width b = 30 mm and height h = 40 mm. Determine the magnitude of the horizontal shear stress at the centroid of the cross section.

Mi papá practica deporte porque quiere [q16] en forma.

Determine the transverse reinforcement index, Ktr, for a rectangular beam with b = 18 in. and d = 24 in., five epoxy-coated No. 6 Grade 60 tension-reinforcement bars placed in the top of the beam, and No. 3 Grade 60 stirrups located every 6 in. along the span. Assume 5,000-psi normal-weight concrete and a clear cover of 1.5 in.

You are considering a beam design that has dimensions of b = 18 in., h = 26 in., and d = 23.5 in. The beam is singly reinforced with all of the reinforcement in a single row. The concrete strength is 10,000 psi, and the yield strength of the reinforcement is 60,000 psi. What cross-sectional area of reinforcement is needed to achieve a strain in the reinforcement of 0.0075?

Assuming Vs exceeds 4sqrt(f’c)bwd, the maximum spacing for vertical stirrups in the following beam is _____. Let b1 = 28 in., b2 = 12 in., d1 = 8 in., and d2 = 49 in. There are three No. 8 longitudinal tension bars and No. 3 stirrups at 11 in. o.c.

Determine algebraically whether the function is even, odd, or neither even nor odd. f(x) = -9 x3 + 8x (5 points)

Rewrite with only sin x and cos x. sin 3x – cos x (6 points)

How many units are covered in this class? Hint: the same number of weeks in the semester

Determine the intervals on which the function is increasing, decreasing, and constant.(5 points)