A body is oscillating up and down at the end of a spring. Let's consider when the body is at the top of its up and down motion. The velocity
a. is zero c. points up
b. has its largest magnitude d. points down
A
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Energy in Capacitors: When a 6.00-?F air-filled capacitor has a charge of ±40.0 ?C on its plates, how much potential energy is stored in this capacitor?
A. 103 ?J B. 113 ?J C. 123 ?J D. 133 ?J E. 143 ?J
An object 1.25 cm tall is placed 100 cm in front of a convex lens with a focal length of magnitude 50 cm. A concave lens with a focal length of magnitude 20 cm is placed 90 cm beyond the first lens
Where is the final image located? A) 10 cm in front of the second lens B) 20 cm past the second lens C) 17 cm past the second lens D) 10 cm past the second lens E) 20 cm in front of the second lens
A positive test charge q is released near a positive fixed charge Q. As q moves away from Q, it will move with
A) constant velocity. B) constant acceleration. C) increasing acceleration. D) decreasing acceleration.
When an object is placed 118 cm from a thin diverging lens, its image is found to be 59 cm from the lens. The lens is removed, and replaced by a thin converging lens whose focal length has the same magnitude as the diverging lens
This second lens is at the original position of the first lens. Where is the image of the object now?