A parallel-plate capacitor has dimensions 4.0 cm 5.0 cm. The plates are separated by a 1.0-mm thickness of paper (dielectric constant k = 3.7). What is the charge that can be stored on this capacitor, when connected to a 6.0-V battery? (e0 = 8.85 10-12 C2/Nm2)
a. 4.8 10-9 C
c. 9.8 10-11 C
b. 4.8 10-11 C
d. 3.9 10-10 C
Question 2
A fan blade, initially at rest, rotates with a constant acceleration of 0.025 rad/s2 . What is the time interval required for it to reach a 10-rad displacement after starting from rest?
a. 28 s
c. 56 s
b. 2.0 s
d. 18 s