The electric field strength in the space between two closely spaced parallel disks is 1.0 × 105 N/C. This field is the result of transferring 3.9 × 109 electrons from one disk to the other
What is the diameter of the disks? (e = 1.60 × 10-19 C, ?0 = 8.85 × 10-12 C2/N ? m2)
A) 3.0 cm
B) 1.5 cm
C) 4.5 cm
D) 6.0 cm
A
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What is required to access Dynamic Study Modules?
A. Previously signing in from a desktop, if using DSM on the mobile app B. A current mastering username and password C. Enrollment in a course that uses mastering with dynamic study modules D. All of the above
When Monkey Mo is suspended at rest by holding a rope with one hand and the side of his cage with the other, all the force vectors that act on him
A) have equal magnitudes. B) cancel except for his weight vector, mg. C) have a vector sum of zero.
A 50.0-N box is sliding on a rough horizontal floor, and the only horizontal force acting on it is friction. You observe that at one instant the box is sliding to the right at 1.75 m/s and that it stops in 2.25 s with uniform acceleration
What magnitude force does friction exert on this box? A) 3.97 N B) 8.93 N C) 38.9 N D) 50.0 N E) 490 N
You push your physics book across your desk, leaving the book at rest on the desk at the end of the process. Which of the following best represents the overall energy conversion during this process?
A) kinetic to thermal B) thermal to chemical C) chemical to electromagnetic D) chemical to thermal E) elastic to thermal