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Answer is: A following directions on-screen
Answer:

Explanation:
The computation of the velocity by using the following formula is
As we know that

where,
Displacement is 10 meters
Total time taken is 30 seconds
Now placing these values to the above formula
So, the velocity of Dash is


We simply applied the above formula so that we can get the velocity and the same is to be considered
Answer:
HVAC is stand for the heating, ventilation and the air conditioning system that basically perform various type computer management and operation system. It also helps to improve the productivity of the system.
As, HVAC system is very concerned about the security as it basically include various types of toxic chemical in the environment that include various types of criminal and terrorist activities and natural disaster.
The HVAC systems are easily cause various accidental cases due to its complexity nature. It also performing various types of function in the management sector like maintenance, system updating function an remote controlling maintenance.