According to the U.S Department of Labor, oil and natural gas provide us with _____ of our energy needs
A) three-fifths
B) one-fourth
C) one-half
D) none of these
A
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The fatal split in the Whig party in 1852 occurred over
A. the Clayton-Bulwer Treaty. B. slavery. C. the Gadsden Purchase. D. homestead laws. E. the transcontinental railroad route.
Many natural resources will not last forever
Indicate whether the statement is true or false
PROBLEM 3.19 Shaft AB is made of a steel with an allowable shearing stress of 90 MPa and shaft BC is made of an aluminum with an allowable shearing stress of 60 MPa. Knowing that the diameter of shaft BC is 50 mm and neglecting the effect of stress concentrations, determine (a) the largest torque T that can be applied at A if the allowable stress is not to be exceeded in shaft BC, (b) the corresponding required diameter of shaft AB.
The capillary tube metering device on a domestic refrigerator is generally fastened to the ____ for heat exchange.
A. liquid line B. compressor discharge line C. condenser coil D. suction line