Two identical adjacent rooms each have a light bulb operating at a brightness of 300 lumens. The bulb in one of the rooms is now replaced by a bulb with a higher brightness. What is the minimum brightness (in lumens) needed such that a user will notice the increased brightness as compared to the adjacent room (which is still at 300 lumens).

Which is a false statement considering copyright law? a. when people upload something to the internet they automatically receive a copyright for the work b. the work does not have to contain a copyright notice to be considered having a copyright c. copyright is legal term describing rights given to the creators for literary and artistic works d. personal pictures are always covered by copyrights

A911 dispatcher is the sole sender of messages to all police officers. while on patrol, officers communicate with the dispatcher who, in turn, relays messages to other officers. the officers do not communicate directly with one another. this illustrates a network.

What is the original authority for copyright laws