Answer:
T surface = 3.9°C
Explanation:
given data
emissivity 0.6
absorptivity = 0.2
solar radiation is incident rate = 1200 W/m²
solution
we get here surface temperature by equality of emitted and absorbed heat rate that is
Q (absorbed) = Q (heat ) .................1
α Qinc = 
T surface = ![\sqrt[4]{\frac{\alpha Qinc}{\epsilon *\sigma * A} }](https://tex.z-dn.net/?f=%5Csqrt%5B4%5D%7B%5Cfrac%7B%5Calpha%20Qinc%7D%7B%5Cepsilon%20%2A%5Csigma%20%2A%20A%7D%20%7D)
..........................2
put here value and we get
T surface = ![\sqrt[4]{\frac{0.2*1000}{0.6*5.67**10^{-8}} }](https://tex.z-dn.net/?f=%5Csqrt%5B4%5D%7B%5Cfrac%7B0.2%2A1000%7D%7B0.6%2A5.67%2A%2A10%5E%7B-8%7D%7D%20%7D)
T surface = 276.9 K
T surface = 3.9°C
If you are being tailgated and need to make a stop, you should:
B. flash your brake lights ahead of time.
C. slow sooner to make a gradual stop.
<h3>What is tailgating?</h3>
Tailgating can be defined as an act which typically involves a tailgater driving dangerously close behind another vehicle that is in front.
This ultimately implies that, a tailgating vehicle is a hazard to any driver because when he or she brakes suddenly, it may result in the tailgater hitting him or her from the rear.
In this context, we can infer and logically deduce that if you are being tailgated and need to make a stop, you should flash your brake lights ahead of time and slow sooner to make a gradual stop.
Read more on tailgating vehicle here: brainly.com/question/14287208
#SPJ1
Hello! The answer to your question would be as followed:
Crawling in heavy smoke or extreme heat can increase <u><em>visibility</em></u>
Answer:
Part A:
Part B:
(Psi)
Explanation:
Part A:
Line Pressure is 1500 KPa
We need a conversion factor which converts KPa to lb/ft^2.
In order to convert 1500 KPa to lb/ft^2, we proceed as:
1500 KPa is 31328.145 lb/ft^2
Part B:
We will use the same procedure we did in Part A:
1 ft= 12 in
Converting 
(Psi)
1500 KPa is 217.55656 lb/in^2 (psi)
