Three point charges are positioned as follows: 
is at (0.00 m, 0.00 m), 
is at (1.20 m, 0.00 m), and 
is at (1.20 m, 1.60 m). If all three charges are negative, into which quadrant is the force on 
pointing?
A. 1st
B. 2nd
C. 3rd
D. 4th
E. there isn't enough information in the problem to solve this
C. 3rd
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The fact that many radio lobes emit more intensely from the side away from the galaxy suggests that
a. they are formed by material falling into the galaxy. b. they are powered by magnetic fields. c. they are excited by radiation from nearby galaxies. d. they are powered by the rapid rotation of the galaxy. e. they are created by jets from the galaxy emitting where the material is halted.
Why is the innermost Galilean moon Io made mostly of rock while the outermost Galilean moon, Callisto made of a mixture of ice and rock?
A) Io formed close to Jupiter where the temperatures were too high for ices to form B) Callisto was captured as it wandered in from the Kuiper Belt C) Io once had ice on its surface which was vaporized away by volcanism D) Callisto experience many impact by icy comets which built up a layer of ice on its surface
Evaporation is when a gas is converted into a liquid
a. True b. False Indicate whether the statement is true or false
If I = 0.40 A in the circuit segment shown below, what is the potential difference Va ? Vb?
a.
31 V
b.
28 V
c.
25 V
d.
34 V
e.
10 V