Solve the problem.The shape and density of a thin shell are indicated below. Find the moment of inertia about the z-axis.Shell: portion of the cone x2 + y2 - z2 = 0 between z = 2 and z = 3Density: ? = 1
A. Iz = 
?
B. Iz = 
C. Iz = 65
D. Iz = 65?
Answer: A
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Use the substitution method to solve the system.-6x + 7y = -36-4x - 2y = -24
A. (6, 1) B. (6, 0) C. (5, 1) D. No solution
Solve the problem.An object of mass m attached to a coiled spring with damping factor b is pulled down a distance a from its rest position and then released. Assume the positive direction of the motion is up and the period of the first oscillation is T. Write an equation that relates the distance d of the object from its rest position after t seconds. m = 15 g; a = 11 cm; b = 0.7 g/sec; T = 3 sec
What will be an ideal response?
Find the exact value of the expression.cos2
A. 
B. 
C. 
D. 
Solve.Mark's typing speed is 61 words per minute. How many words can he type in 36 minutes?
A. 2096 words B. 2206 words C. 2196 words D. 97 words