A object of height 0.02m is to be enlarged on a screen to a height of 0.8m by means of a converging lens placed 4.0m from the screen. calculate thedistance of the object from the lens. focal length of the lens .

What are the phases shown in a and d called?

Avehicle has an oil leak that is causing the entire oil pan to be wet, but inspection reveals no exact source after cleaning off the oil residue. technician a says to install a fluorescent dye in the crankcase and operate the engine, then re-inspect for leaks with a special light (black light). technician b says the oil leak may be coming from a source at the top of the engine, such as a valve cover gasket. who is correct?

Several mountains together form a mountain . a few of these combined form a mountain system. several systems combined form a mountain , which can stretch thousands of miles in length.