Solve the problem.A force of magnitude 14 pounds pulling on a suitcase makes an angle of 60° with the ground. Express the force in terms of its i and j components.
A. 0.5000i + + 0.8660j
B. 7.000i + 12.12 j
C. -13.33i - 4.267j
D. 12.12i + 7.000j
Answer: B
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A. 4 B. 1 C. -4 D. -1
The pie chart shows clothes sales of an online store. Which of the following statements is correct?
a. Trouser sales are the largest.
b. Dress and skirt sales are about the same.
c. Accessory sales are the smallest.
d. All statements are correct.
Solve the problem.Find the moment of inertia about the y-axis of the thin semicircular region of constant density 
bounded by the x-axis and the curve 
.
A. 
?
B. 320?
C. 160?
D. 
?
Solve the problem.Let D be the smaller cap cut from a solid ball of radius 9 units by a plane 8 units from the center of the sphere. Set up the triple integral for the volume of D in cylindrical coordinates.
A. 
B. 
C. 
D. 