A rabbit trying to escape a fox runs north for 8.0 m, darts northwest for 1.0 m, then drops 1.0 m down a hole into its burrow. What is the magnitude of the net displacement of the rabbit?
A) 8.8 m
B) 8.1 m
C) 66 m
D) 10 m
Question 2
You apply the same force to two objects. Object 1 has mass M and object 2 has mass 5M. The acceleration of object 2 is
A) ten times that of object 1.
B) five times that of object 1.
C) the same as that of object 1.
D) one-fifth as that of object 1.
E) has no relation to that of object 1.
Species richness of birds in North America.
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This 1900 photograph of steel factories at night in Duquesne, near Pittsburgh, was tinted by hand. S
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