The graph below shows a plot of angular acceleration in rad/s2 versus time from t = 0 s to t = 8 s. The angular velocity at t = 0 s is 
, CCW. The angular velocity, ?, at t = 8 s is
A.
, CW.B.
, CCW.C.
, CW.D.
, CCW.E.
, CW.Answer: A
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Uncertainty Principle Using Momentum and Position: An electron is known to be confined to a region of width 0.10 nm. What is an approximate value for the least kinetic energy it could have, in electron-volts? (h = 6.626 × 10-34 J ? s, 1 eV = 1.60 × 10-19 J, (melectron = 9.11 × 10-31 kg)
A. 1.1 eV B. 0.88 eV C. 3.8 eV D. 8.8 eV E. 17 eV
As you jump up and down on a floor, the support force by the floor experiences
A) changes. B) no changes. C) none of the above.
A body is oscillating up and down at the end of a spring. Let's consider when the body is at the top of its up-and-down motion.The displacement vector from the equilibrium position has its largest magnitude
a. True b. False Indicate whether the statement is true or false
The vertical displacement of a string is given by y(x,t) = (6.00 mm) cos[(3.25 m-1)x - (7.22 s-1)t]. What is the speed of the wave?
A) 0.450 m/s B) 1.41 m/s C) 2.22 m/s D) 3.16 m/s E) 23.5 m/s