Charges of 3.5 µC and ?7.6 µC are placed at two corners of an equilateral triangle with sides of 0.1 m. At the third corner, what is the electric field magnitude created by these two charges? (ke = 8.99 × 10^9 N·m2/C2)
a. 1.2E+7 N/C
b. 3.0E+6 N/C
c. 5.5E+6 N/C
d. 5.9E+6 N/C
e. 7.9E+6 N/C
d
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Lenz's Law: An outer metal ring surrounds an inner metal ring, as shown in the figure. The current in the outer ring is counterclockwise and decreasing. What is the direction of the induced current in the inner ring?
A. clockwise B. counterclockwise C. There is no induced current in the inner ring.
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Answer the following statement true (T) or false (F)
Consider the following statement, and explain whether or not it is sensible: Earth is always precisely 1 AU from the Sun
What will be an ideal response?
The ocean thermal energy conversion project uses the surface water near tropical islands with a temperature of 20.0°C as the hot temperature reservoir, and the water at some depth,
with a temperature of 5.0°C, as the cold temperature reservoir for a heat engine. What is the maximum efficiency of an engine running between those two temperatures? A) 4.7% B) 5.1% C) 7.9% D) 15% E) 30%