The purpose of doing a secondary survey on this victim is to: Look for any potentially life threatening injuries.
<h3>
What is secondary survey?</h3>
Secondary survey are body survey carried out on a victim so as to detect any form of life threatening injuries and this survey is carried out by examining the whole body of the victim.
Life-threatening injuries are injuries that can lead to death if not diagnosed and treated.
Based on the information given carrying out secondary survey on this victim as the victim may have apparent injury.
Hence, secondary survey is important as it will help to detect any life threatening injuries that may not be immediately visible.
Example of life-threatening injuries includes:
- Head injury
- Skull fractures
- Neck injury
- Spinal cord injury etc
Inconclusion the purpose of doing a secondary survey on this victim is to: Look for any potentially life threatening injuries.
Learn more about secondary survey here:brainly.com/question/1695365
I think B or C. :) is the answer.
By using a woodstove, the kilograms of wood required to
heat a room to 20°C is 3 kg
<h3>Efficiency of a machine</h3>
- Efficiency is the percent of work put into a machine (input work) to that of the work done by the machine (output work).
- Efficiency of a machine is always less than 100% because the output work is always less than the input work because some of the input work is used to overcome friction.
Efficiency = work output/work input * 100%
Efficiency of fireplaces = 15%
Amount of food required to heat a room to 20°C = 15 kg
Assuming efficiency of 100%, amount of wood required will be X kg:
X = 15% * 15 kg
X = 2.25 Kg
By switching to woodstoves which are 75% efficient, amount of wood required will be Y kg:
Y = 2.25 kg / 75%
Y = 3 kg
Therefore, by using a woodstove, the kilograms of wood required to
heat a room to 20°C is 3 kg
Learn more about efficiency of machines at: brainly.com/question/3617034
