If these are sound waves, which corresponds to the highest pitch?
1) Wave I
2) Wave II
3) Wave III
4) Wave IV
And which has the greatest wavelength?
5) Wave I
6) Wave II
7) Wave III
8) Wave IV
9) all have the same wavelength
Answer: 4, 5
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A(n) _____ is a model of the Universe with the Sun at the center, such as the Copernican universe
A) geocentric universe B) concentric universe C) heliocentric universe D) eccentric universe
Determine the magnitude and sense (direction) of the current in the 10-? resistor when I = 1.8 A
a.
1.6 A right to left
b.
1.6 A left to right
c.
1.2 A right to left
d.
1.2 A left to right
e.
1.8 A left to right
The factor fnow, in the Drake equation depends on
A) whether a civilization ever develops intelligence B) whether a planet has any kind of life on its surface right now C) how technologically advanced civilizations become D) how long civilizations survive once they have arisen
What distinguishes a conservative force from a non-conservative force?
What will be an ideal response?