(A) The figure shows the setup which is used to observe an image formed wen a lighted candle is kept in front of a bi convex lense. 1. Can the image be formed on the screen or not when the lighted candle is moved from F (focus) towards P (pole)?

2. Sketch the ray diagram to show how the image is formed by the lens when the candle is kept in between F and P.

3. Write 2 characteristics of the image formed in the above ray diagram.

Aperson stands on a platform, initially at rest, that can rotate freely without friction. the moment of inertia of the person plus the platform is ip. the person holds a spinning bicycle wheel with its axis horizontal. the wheel has moment of inertia iw and angular velocity ωw. take the ωw direction counterclockwise when viewed from above. part a what will be the angular velocity ωp of the platform if the person moves the axis of the wheel so that it points vertically upward?

What kind of simple machine is a catapult?

Aforce of 100 newtons is used to move an object a distance of 15 meters with a power of 50 watts. find the work dine and the time it takes to do the work