Select the correct answer
a civil engineer is performing a tensile test on a brick. immediately after he adds the first weight, the brick splits into two parts why did this happen?
o a.
brick has high elastic moduli
ob. brick has low tensile strength
oc.
compressive stress on the brick
od. shear stress on the brick
o e
torsion stress on the brick

Ariver flows from north to south at 8 km/h. a boat is to cross this river from west to east at a speed of 20 km/h (speed of the boat with respect to the earth/ground). at what angle (in degrees) must the boat be pointed upstream such that it will proceed directly across the river (hint: find the speed of the boat with respect to water/river)? a 288 b. 21.8 c. 326 d. 30.2