HDTV is now being introduced in the U.S. It is likely that sales of HDTVs will follow an exponential growth curve during the earliest years of sales
What will be an ideal response?
Yes, there are very few sets, so the growth takes off in an apparent exponential
fashion. Eventually, of course, there will come a time when the number saturates.
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Where did comets that are now in the Kuiper belt originally form?
A) in the asteroid belt B) inside Jupiter's orbit C) between the orbits of Jupiter and Neptune D) near the radius at which they orbit today E) in the Oort cloud
An atom is said to have been ________ when it absorbs a photon with sufficient energy to free an electron
Fill in the blank(s) with correct word
If a = 30 cm, b = 20 cm, q = +2.0 nC, and Q = ?3.0 nC in the figure, what is the potential difference VA ? VB?
a.
+60 V
b.
+72 V
c.
+84 V
d.
+96 V
e.
+48 V
Tides are caused because different parts of the earth's oceans are at different distances from the moon
Indicate whether the statement is true or false