A parallel-plate capacitor is connected to a battery. What happens to the stored energy if the plate separation is doubled while the capacitor remains connected to the battery?
1.It remains the same.
2.It is doubled.
3.It decreases by a factor of 2.
4.It decreases by a factor of 4.
5.It increases by a factor of 4.
3
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Indicate whether the statement is true or false
Fluid Flow: Water, which we can treat as ideal and incompressible, flows at 12 m/s in a horizontal pipe with a pressure of 3.0 × 104 Pa. If the pipe widens to twice its original radius, what is the pressure in the wider section?
A. 3.0 × 104 Pa B. 4.9 × 104 Pa C. 7.4 × 104 Pa D. 9.8 × 104 Pa
The equation below is the solution to a problem.
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The best physical representation of this equation is
A. a sphere of 2.00-kg mass under a 45.2-N tension when at the bottom of a vertical circle. B. a sphere of 2.00-kg mass under a 45.2-N tension when at the side of a vertical circle. C. a sphere of 2.00-kg mass under a 45.2-N tension when at the top of a vertical circle. D. a sphere of 2.00-kg mass at any point on a horizontal circle. E. a 2.00-kg gecko running on the ceiling with a speed of 8.00 m/s.
The surface of Mercury looks very similar to ________
Fill in the blank(s) with correct word