Find the limit, if it exists.
A. - 
B. Does not exist
C. - 
D. 0
Answer: A
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Let f be a scalar field and F be a vector field. Indicate whether of the following is a scalar field, vector field, or meaningless.div (curl(grad f))
A. Scalar Field B. Vector field C. Meaningless
Solve.The gravitational attraction A between two masses varies inversely as the square of the distance between them. The force of attraction is 4 lb when the masses are 3 ft apart, what is the attraction when the masses are 6 ft apart?
A. 3 lb B. 4 lb C. 2 lb D. 1 lb
Find the arc length parameter along the curve from the point where t = 0 by evaluating 
r(t) = (etcos t)i + (etsin t)j + 5etk
A. 3
et - 
B. 
et - 
C. 
et - 3
D. 3
tet - 3
Use a scientific calculator to approximate the common logarithm. Round to four decimal places.log 202
A. 2.3075 B. 5.3083 C. 2.3032 D. 2.3054