What is the minification gain for an image intensification tube with an input screen diameter of 5 in. and an output diameter of 1 in.?

What year did Congress pass the Americans with Disabilities Act (ADA)?

A. 1973 B. 1990 C. 2002 D. 1969

Envelopes that have a transparent window are used for ________ and statements.

Fill in the blank(s) with the appropriate word(s).