The plot of a vector field is shown below. A particle is moved from the point (-3,2) to (3,2). By inspection, determine whether the work done by F on the particle is positive, negative, or zero.
 FIGURE.png)
positive
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Provide an appropriate response.The following equations each describe the motion of a particle. For which path is the particle's speed constant?(1) r(t) = t7i + t2j(2) r(t) = cos (9t)i + sin (2t)j(3) r(t) = ti + tj(4) r(t) = cos (-4t2)i + sin (-4t2)j
A. Path (4) and Path (2) B. Path (3) C. Path (2) and Path (3) D. Path (1)
Use the counting principle to obtain the answer.A restaurant offered salads with 3 types of lettuce, 3 different toppings, and 6 different dressings. How many different types of salad could be offered?
A. 36 B. 27 C. 54 D. 12
Perform the conversion.0.00042 kg = ___ mg
A. 0.42 B. 0.0042 C. 42 D. 420
Refer to the figure to classify the statement as true or false.
and 
are perpendicular to the plane BEF.
A. True B. False