Answer: Even low airborne concentrations (100 ppm) of ammonia may produce rapid eye and nose irritation.
Answer:

Explanation:
The phenomenon can be modelled after the Bernoulli's Principle, in which the sum of heads related to pressure and kinetic energy on ground level is equal to the head related to gravity.

The velocity of water delivered by the fire hose is:


The maximum height is cleared in the Bernoulli's equation:



Answer: 7ft x21 I’d be right but yes I am
Explanation: because it is Welty
Answer:
The correct answer is: The low power objective.
Explanation:
The low power objective can cover a large field of sight which is ver useful for analyzing several specimens or to inspect smaller ones.
This power also helps the microscope to get aligned and has a reach for the low objective of 10X.
Answer:
b). False
Explanation:
Thermodynamic property are of two types
1. Intensive property
2.Extensive property
Intensive properties are those properties that do not depend on mass. For example, Specific volume, temperature, specific heat capacity,density etc
Extensive properties are those properties which depends on mass.
For example, volume, heat capacity, etc.
Now when a specific property (intensive property) is multiplied with mass of the system, we get extensive property .
We know that density is an extensive property having unit of kg per meter cube.
Now the reciprocal of density is specific volume which is also an extensive property having unit of meter cube per kg.
Now if we multiply the specific volume with the mass we get volume which is an extensive property and not an intensive property.
Thus, we get extensive property when we multiply mass to any specific or intensive property.