An object attached to a coiled spring is pulled down a distance a from its rest position and then released. Assuming that the motion is simple harmonic with period T, write an equation that relates the displacement d of the object from its rest position after t seconds. Also assume that the positive direction of the motion is up.a = 5;
T = 10 seconds
A. d = 5 cos (10t)
B. d = 5 cos 
C. d = -5 cos (10t)
D. d = -5 cos 
Answer: D
You might also like to view...
Find the value of 2x2 + y + 6 when x = 4 and y = 2.
a. 64 b. 40 c. 82 d. 86 e. 92
Find the function value.Find f(-9) when f(x) = |x|- 6.
A. -15 B. -3 C. 15 D. 3
Find the vertex, focus, and directrix of the parabola with the given equation.(x - 4)2 = 8(y + 2)
A. vertex: (4, -2) focus: (4, 0) directrix: y = -4 B. vertex: (4, -2) focus: (4, -4) directrix: x = 0 C. vertex: (-2, 4) focus: (-2, 6) directrix: y = 2 D. vertex: (-4, 2) focus: (-4, 4) directrix: y = 0
Solve the problem.The city bridge has 8 lanes, all carrying equal numbers of cars. If 536 cars drive across the bridge, how many cars cross in each lane?
A. 67 cars B. 68 cars C. 544 cars D. 75 cars