Tensile Stress and Strain: Which of the following are SI units of Young's modulus? (There could be more than one correct choice.)
A. N/m ? s2
B. kg/m2
C. kg ? m/s2
D. kg/m ? s2
E. kg ? m2/s2
Answer: D
You might also like to view...
The power factor of an RLC series circuit _______ at resonance.
A. is one B. has a value that depends upon the ratio of inductive reactance to impedance C. has a value that depends upon the ratio of capacitive reactance to impedance D. is zero
Identify a true statement about Population II stars
A) Most of them are post-main sequence stars. B) They are located in the disk component of the galaxy. C) Most of them follow elliptical orbits. D) They have higher metal content than Population I stars.
A piece of aluminum with a mass of 1.0 kg and density of 2700 kg/m3 is suspended from a light cord and then completely immersed in a container of water having density 1000 kg/m3
(a) Determine the volume of the piece of aluminum. (b) Determine the tension in the cord when the aluminum is immersed in the container of water.
Assuming the Hubble constant is (21 km/s)/(106 ly), what is the recession speed of a galaxy 300 million parsecs away? (1 parsec = 3.26 ly)
a. 4200 km/s c. 640 km/s b. 21,000 km/s d. 7000 km/s