Due to its effectiveness against fire classifications a, b, and c, powder extinguishers are reffered to as abc fire extinguishers.
A fire can be controlled with the use of a fire extinguisher. Extinguishers can assist put out the fire and perhaps prevent it from continuing to burn. Some fire extinguishers, depending on their size, can be moved about and used by hand. Fire extinguishers come in a variety of sizes. Longer use is possible with larger fire extinguishers.
The weight of hand-held fire extinguishers ranges from 0.5 to 14 kg. Extinguishers of 2 kg and 12 kg weights operate for two to four to eighteen seconds, respectively. Fire extinguishers come in two primary varieties the cartridge-operated and stored-pressure. In stored pressure devices, the expellant and the actual firefighting agent are both kept in the same chamber.
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There are factors that affects gravity. The measurements that the student must collect in order to approximate the amount of work done by the earth are:
- The mass of the student.
- The final vertical height above the initial vertical position.
<h2>What is work done
</h2>
Work is done only when a known force do moves something over a distance. A person can calculate the energy transferred, or work done.
This can be done by multiplying the force usually by the distance moved in the direction of the force.
The options are
Select two answers:
a. The mass of the student
b. The angle between the inclined portion of the stairs and the horizontal.
c. The total inclined length of the stairs
d. The final vertical height above the initial vertical position.
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The diagram which shows the parallelogram method for vector addition is shown in the image attached below.
In this scenario, let the two (2) vectors representing the two (2) adjacent sides of a parallelogram in both magnitude and direction drawn from a common point be:
The parallelogram law of vector addition states that if two (2) vectors and represent the two (2) adjacent sides of a parallelogram in both magnitude and direction drawn from a common point, then their sum or resultant vector () is equal to the diagonal of the parallelogram passing through that point in both magnitude and direction.
Therefore, the diagram which shows the parallelogram method for vector addition is shown in the image attached below.
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Answer:
Hi there!
The answer to this question 110.