Microfossils found in northwestern Australia in 2011 appears to have used compounds based on which element for metabolism?
A) sulfur
B) oxygen
C) nitrogen
D) carbon
A
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Two bodies revolve around their common center of mass, the balance point of the system
Indicate whether the statement is true or false
Shear Modulus: Opposing shearing forces of 3000 N are applied to the 4.00-cm × 5.00-cm faces of a metal block measuring 3.00 cm × 4.00 cm × 5.00 cm. By what amount does the block become slanted? The shear modulus for this metal is 8.10 × 1010 N/m2.
A. 1.54 × 10-6 m B. 5.56 × 10-7 m C. 9.88 × 10-7 m D. 3.08 × 10-6 m E. 6.98 × 10-6 m
The turntable of a record player has an angular velocity of 8.0 rad/s when it is turned off. The turntable comes to rest 2.5 s after being turned off. Through how many radians does the turntable rotate after being turned off? Assume constant angular acceleration.
A. 12 rad B. 8.0 rad C. 10 rad D. 16 rad E. 6.8 rad
What is the most important factor that determines the thickness, and therefore strength, of the lithosphere?
A) pressure B) viscosity C) composition D) internal temperature E) distance of planet from Sun