Two pipe columns are required to have the same Euler buckling load Pcr. Column 1 has flexural rigidity EI1 and height L; column 2 has flexural rigidity (2/3) EI2 and height L. The ratio (I2/I1) at which both columns will buckle under the same load is approximately:
(A) 0.8
(B) 1.0
(C) 2.2
(D) 3.1
(D) 3.1
You might also like to view...
What makes dark matter and dark energy so mysterious and so important?
A. We don't exactly know what they are, but they are the determining factors of the stellar evolution and planet formation. B. We don't have strong evidence that they exist, but they could influence the motion of stars in Milky Way Galaxy. C. We don't exactly know what they are, and they make up the majority of the total energy content of the universe. D. We don't have strong evidence that they exist, and they could strongly influence the processes occurring in our Solar System.
Two instruments produce a beat frequency of 5 Hz. If one has a frequency of 264 Hz, what could be the frequency of the other instrument?
a. 269 Hz b. 254 Hz c. 264 Hz d. 5 Hz e. 274 Hz
Over geologic history the Earth's magnetic field
A) has been relatively stable. B) has increased in strength exponentially. C) has reversed direction many times. D) is unknown.
The de Broglie wavelength of a particle is inversely proportional to both its speed and its
a. spin. b. electric charge. c. volume. d. mass.