Exhibit 12-1
The figure below shows a graph of angular velocity versus time for a woman bicycling around a circular track.
?
?
Use this exhibit to answer the following question(s).
Refer to . What is her angular displacement (in rad) in the first 8 minutes?
a.
0
b.
?
c.
4?
d.
8?
e.
16?
e
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What forces are included in a free-body diagram for an object? a. The forces acting on the object and the forces the object exerts on any other objects it is in contact with. b. The forces acting on the object and the forces the object exerts on all other objects in the system
c. Only the forces acting on the object. d. Only forces internal to the object.
Microwave radiation is useful in which of the following?
a. sending phone messages b. cooking food c. aircraft navigation d. All of the above are valid choices.
One of the most unexpected aspects of Mars' atmosphere is:
A) that it is 95% carbon dioxide. B) that its troposphere changes altitude. C) that it is cloudless. D) that it contains water vapor clouds. E) that it has such a low density.
A force on a particle depends on position such that F(x) = (3.00 N/m2)x2 + (6.00 N/m)x for a particle constrained to move along the x-axis. What work is done by this force on a particle that moves from x = 0.00 m to x = 2.00 m?
A) 10.0 J B) 20.0 J C) -48.0 J D) 24.0 J E) 48.0 J