Two wires support a post, with dimensions as shown in the figure. If d = 14 m, what is the value of x?
a.
7.5 m
b.
6.5 m
c.
18.3 m
d.
5.2 m
d
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A polished aluminum plate 0.3 cm thick is used to partially shield against thermal radiation. Determine the shape factor between one side of the plate and the opposite side, if there are 1.2 cm diameter holes punched in the plate as shown in the figure.
Explain how we can estimate the geological age of a planetary surface from its number of impact craters
What will be an ideal response?
Solar mass stars eventually become hot enough for carbon nuclei to fuse together
Indicate whether the statement is true or false
A parallel plate capacitor is charged to 12 V and the voltage source is then disconnected. When the air space between the plates is then filled with a dielectric of constant 6.0, what is the resulting voltage between the plates?
A. 72 V B. 12 V C. 6.0 V D. 2.0 V E. none of these choices are correct