In the hypothetical atomic interaction shown in figure C9.13, suppose the atoms initially are separated by a very large distance but are approaching each other with kinetic energy 
. Roughly how close will the atoms get to each other eventually?
A. r = 0
B. r = 0.05 nm
C. r = 0.2 nm
D. r = 0.4 nm
E. Other (specify)
E. Other (specify)
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An 80.0-kg object is falling and experiences a drag force due to air resistance. The magnitude of this drag force depends on its speed, v, and obeys the equation What is the terminal speed of this object?
A) 6.45 m/s B) 72.2 m/s C) 34.2 m/s D) 12.6 m/s E) 47.3 m/s
Classify the following statement as a characteristic
(a) of electric forces only, (b) of magnetic forces only, (c) of both electric and magnetic forces, or (d) of neither electric nor magnetic forces. The force exerted on a moving charged object is zero.
1.electric forces 2.magnetic forces 3.both electric and magnetic forces 4.neither electric nor magnetic forcesA Ferris wheel starts at rest and builds up to a final angular speed of 0.70 rad/s while rotating through an angular displacement of 2.5 rad. What is its average angular acceleration?
a. 0.098 rad/s2 c. 1.8 rad/s2 b. 0.05 rad/s2 d. 0.60 rad/s2
When properly used, a hydraulic press, like a wheel and axle, is capable of multiplying force input
A) A true statement. B) A false statement. C) Yes, and in special cases, energy as well.