Two capacitors with capacitances of 2.0 and 3.6 ?F, respectively, are connected in series. The system is connected to a 40-V battery. What charge accumulates on the 2.0-?F capacitor?
a. 220 ?C
b. 31 ?C
c. 2 100 ?C
d. 51 ?C
e. 290 ?C
d
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Faraday's Law: A flat rectangular coil with dimensions of 8.0 cm × 10 cm is dropped from a zero magnetic field position into a 1.4-T magnetic field in 0.10 s. The coil has 60 turns and is perpendicular to the magnetic field. What is the average induced emf in the coil as a result of this action?
A. 8.6 V B. 2.4 V C. 6.7 V D. 3.6 V E. 0 V
A box is being pulled across a rough floor at a constant speed. What can you say about the work done by friction?
a) friction does no work at all b) friction does negative work c) friction does positive work
The Moon's crust is thicker on the side of the Moon that faces the Earth
Indicate whether the statement is true or false
Jane swims the length of a 40. meter pool in 10. seconds and immediately swims back to the starting position in another 15. seconds. What was her average velocity?
What will be an ideal response?