net cell voltage = (reduction potential reaction at cathode) – (reduction potential reaction at anode) Q = I x t = n x F mass = moles x molar mass F = 96485 C/mol e- surface area = length x width volume = length x width x depth density = mass/volume      Balance the two reactions below.  Reaction a) is in an acidic solution, Reaction b) is in a basic solution. a) N2H4 + Cu(OH)2 –> N2 + Cu   b) Cr2O72- + I2 –> Cr3+ + IO3-    

Eating exactly 50% carbs, 25% protein, and 25% fats is ideal and recommended for all people.  

A rectangular beam has a cross section of b = 18 in., h = 28 in., and d = 25.5 in. It is reinforced with two No. 7 Grade 60 bars. The concrete strength is 9,400 psi (normal weight). The beam has Grade 60 No. 3 stirrups. Determine the gross moment of inertia, Ig, for the beam.

The cool-down phase of a workout is important to aid in allowing the body to:

A rectangular beam has a cross section of b = 14 in., h = 24 in., and d = 21.5 in. It is reinforced with four No. 7 Grade 60 bars. The concrete strength is 9,100 psi (normal weight). The beam has Grade 60 No. 3 stirrups. Determine the neutral axis location of the cracked beam (measured from the top of the beam).

During serviceability calculations, it is common to ignore the presence of compression reinforcement.

The development length for a hooked bar is generally longer than that for a headed bar.

Determine the size modification factor, ψs, for a rectangular beam with b = 16 in. and d = 23 in., three galvanized No. 6 Grade 60 tension-reinforcement bars placed in the top of the beam, and No. 3 Grade 40 stirrups located every 12 in. along the span. Assume 8,000-psi normal-weight concrete and a clear cover of 2 in.

An object is thrown straight down at 5.0 m/s from the top of a 125 tall building.  How long does it take the object to hit the ground?

Verbal communication is expressed by posture, facial expressions, actions or physical behavior.