The concrete in the core of a spiral column is subjected to a uniform confining stress σ3 of 470 psi. What will the compressive strength σ1 be? The unconfined uniaxial compressive strength is 3,400 psi.

alt text for image MATCH THE ABOVE LABELED ITEMS TO THEIR MUSCLES BELOW:

A group of 25 tests on a given type of concrete had a mean strength of 4,400 psi and a standard deviation of 600 psi. Does this concrete satisfy the strength requirement for 3,500 psi concrete?

The concrete containing Type I cement in a structure is cured for 3 days at 75°F, followed by 5 days at 38°F. Use the maturity concept to estimate its strength as a percentage of the 28-day strength under standard curing. Maturity is defined as M = Σ(Ti + 50)(ti) where Ti is in degrees F and ti is in days.

The concrete containing Type I cement in a structure is cured for 2 days at 71°F, followed by 5 days at 75°F. Use the maturity concept to estimate its strength as a percentage of the 28-day strength under standard curing. Maturity is defined as M = Σ(Ti + 50)(ti) where Ti is in degrees F and ti is in days.

The three main categories of connective tissues are

Smooth Muscle Tissue cells are small, spindled shaped, can divide, regenerate, and are considered nonstriated involuntary. 

Cells that transport oxygen, carbon dioxide in the blood, lack a nucleus, and account for half of the volume of blood are termed ________. 

During repair of the integument, fibroblasts and endothelial cells divide and produce ________ tissue.

The epidermis is avascular, consists of areolar epithelium, and assists with diffusing nutrients and oxygen from capillaries in the dermis.