The process of matching up rock layers in different localities by such means as index fossils is called
a. conformational analysis.
b. correlation.
c. indexation.
d. cross-cutting.
b
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He discovered that the orbits of planets are ellipses
A) Kepler B) Ptolemy C) Galileo D) Tycho Brahe E) Copernicus
A 20.0 kg box slides up a 12.0 m long incline at an angle of 30.0 degrees with the horizontal. A force of 150 N is applied to the box to pull it up the incline. The applied force makes an angle of 10.0 degrees to the incline. What is the work done by the applied force, in Joules?
A. 1,870 B. 1,770 C. 1,500 D. 1,450 E. 1,380
The unit of measurement for electric power is
A) joules per second. B) watts. C) both are equivalent D) none of the above
A man standing on frictionless ice throws a 1.00-kg mass at 29.0 m/s at an angle of elevation of 50.0°. What was the magnitude of the man's momentum immediately after throwing the mass?
a. 45.1 kg·m/s b. 18.6 kg·m/s c. 22.2 kg·m/s d. 37.9 kg·m/s e. This cannot be answered because the mass of the man needs to be known.