An object is 14.0 cm to the left of a converging lens of 8.0 cm focal length.
A second lens is positioned 10.0 cm to the right of the
first lens and is observed to form a final image at the
position of the original object.
(a) What is the focal length of the second lens ? [4 marks ]
(b) What is the overall magnification of this system?
(4 marks]
(c) State the characteristics of the final image.
[2 marks]
(d) Draw the ray diagram of the system of lenses using a
graph paper.
(4 marks]

When does your body conduct current more readily?

A1-lb collar is attached to a spring and slides without friction along a circular rod in a vertical plane. the spring has an undeformed length of 5 in. and a constant k =25 lb/ft. knowing that the collar is released from being held at a determine, the speed of the collar and the normal force between the collar and the rod as the collar passes through b.

An charge with mass m and charge q is emitted from the origin, (x, y)=(0,0). a large, flat screen is located at x=l. there is a target on the screen at y position y(h), where y(h) > 0. in this problem, you will examine two different ways that the charge might hit the target. ignore gravity in this problem. 1.assume that the charge is emitted with velocity v(0) in the positive x direction. between the origin and the screen, the charge travels through a constant electric field pointing in the positive y direction. what should the magnitude e of the electric field be if the charge is to hit the target on the screen? express your answer in terms of m, q, y(h), v(0), and l. 2.now assume that the charge is emitted with velocity v(0) in the positive y direction. between the origin and the screen, the charge travels through a constant electric field pointing in the positive x direction. what should the magnitude e of the electric field be if the charge is to hit the target on the screen? express your answer in terms of m, q, y(h), v(0), and l.