What is the equivalent resistance between points A and B in the figure when R = 10 ??
a.
20 ?
b.
10 ?
c.
25 ?
d.
15 ?
e.
3.2 ?
b
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Indicate whether the statement is true or false
Suppose that Star X and Star Y both have redshifts, but Star X has a larger redshift than Star Y. What can you conclude?
A) Star X is moving away from us faster than Star Y. B) Star X is hotter than Star Y. C) Star Y is moving away from us faster than Star X. D) Star X is moving away from us and Star Y is moving toward us. E) Star X is coming toward us faster than Star Y.
The axis of a long hollow metallic cylinder (inner radius = 1.0 cm, outer radius = 2.0 cm) coincides with a long wire. The wire has a linear charge density of ?8.0 pC/m, and the cylinder has a net charge per unit length of ?4.0 pC/m. Determine the magnitude of the electric field 3.0 cm from the axis
a. 5.4 N/C b. 7.2 N/C c. 4.3 N/C d. 3.6 N/C e. 2.4 N/C
Between A and D?
A. 0 s B. 2 s C. 3 s D. 4 s E. 5 s F. Other (specify)