What is the resistance of a 1.3 m copper wire (p = 1.7 x 108 o·m) that has a
cross-sectional area of
8.36 x 10-6 m2? Use R
pl
А
A. 2.6 x 10^-3
B. 1.6 x 10^-3
c. 6.4 x 10^2
D. 3.8 x 10^2

The respiratory system removes oxygen and water from the body. select the best answer from the choices provided t f

Unpolarized light of intensity i_0=750w/m^2 is incident upon two polarizers. after passing through both polarizers the intensity is i_2=280w/m^2. (a) what is the intensity of the light after it passes through the first polarizer in w/m^2? (b) write an equation for the angle between the polarizers in terms of the initial (i_0) and final (i_2) intensities. (c) find the angle between the polarizers in degrees.

Asolid round steel rod 6.25 mm in diameter and 375 mm long is rigidly bonded to the end of solid square brass rod 25 mm on a side and 300 mm long. the geometric axes of the bare are along the same line. an axial tensile force of 5.4 kn is applied at the extreme ends of the assembly. for steel e = 200 gpa and for brass e = 90 gpa. determine the total elongation for the assembly.