Burl carries Paul piggyback while standing in the middle of a scaffold. The tensions in the two supporting ropes
A. are equal.
B. cancel to zero.
C. are unequal.
D. more easily support Burl and Paul.
Answer: A
Environmental & Atmospheric Sciences
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a. 10% b. 33% c. 66% d. 75% e. 90%
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Explain why it is cold in the Northern Hemisphere when the Earth is closest to the Sun
What will be an ideal response?
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The American crow is a large passerine bird of the family Corvidae and is a common bird found throughout much of North America. It is most likely to be a _____ species.
A. nonnative B. keystone C. invasive D. generalist E. indicator
Environmental & Atmospheric Sciences
The mouth of a river is where the river reaches base level
Indicate whether the statement is true or false
Environmental & Atmospheric Sciences