Once an electrical system has been installed and is considered to be an existing system, no safety-related design concepts can be implemented to eliminate or mitigate electrical hazards.
true / false.

False.

Explanation:

We can implement the safety related designs or devices to eliminate or mitigate after the installation of electrical system. For example we can install fuses in our homes or offices which detect if the current in the circuit exceeds it's limit. After the one fault fuse has to replaced with other one. There are many other electrical safety equipment that can be installed later on after the system installation.

u=13

v=30

s/t=u+1\2at

=13+431/2

=13+265.5

=278.5

hello, i am papaguy.

i have found an answer to your question but use it as information.

information: because weak acids/bases have low concentration of hydrogen ions, the addition of water has a large impact on the ph. 2. a difference in 1 unit is a 10x difference in concentration for example; a liquid with ph of 3 is 10x more acidic than a liquid with a ph of 4. therefore, a liquid with a ph of 3 is stronger.

best of luck!