Answer:
Effort = 70 N
Explanation:
A machine is a device that can be used to overcome a load by the application of a minimal effort. For a practical machine, mechanical advantage (MA) is the ratio of the load (L) overcome to the effort (E) applied.
i.e MA = 
In the given question, MA = 5 and the load = 350 N. So that;
5 = 
E = 
= 70
The effort applied to the machine is 70 N.
Answer: A. Using different cell styles can help you differentiate different types of data.
B. Fonts should be easily readable and of appropriate size.
D. Be consistent with themes across worksheets and workbooks.
Explanation:
A theme refers to the preset package that contains functionality details and graphical appearance.
The guidelines for using themes include:
• Using different cell styles can help you differentiate different types of data.
• Fonts should be easily readable and of appropriate size.
• Be consistent with themes across worksheets and workbooks.
Therefore, the correct options are A, B and D.
ISDN uses a two-wire telephone line.
Answer: Unified communication
Explanation: Unified communication is the communication technique in which merges various communication routines into a individual business.It works as the phone system which helps in increment of productivity in an organizational business.
The unifying of voice,data/information,video etc is done for optimizing and improving the business that also results in faster communication rates, secure communication etc.
