Aluminum foil reflects more light
A kevlar is a synthetic fiber of high tensile strength used especially as a reinforcing agent in the manufacture of tires and other rubber products, in addition to protective gear. ex ( helmets, vests )
Answer:
I think the answer is D,54 joules
When you convet km to miles this is what you get
1.18061
Answer:
The COP of the system is = 4.6
Explanation:
Given data
Higher pressure = 1.8 M pa
Lower pressure = 0.12 M pa
Now we have to find out high & ow temperatures at these pressure limits.
Higher temperature corresponding to pressure 1.8 M pa
°c = 335.9 K
Lower temperature corresponding to pressure 0.2 M pa
°c = 262.9 K
COP of the system is given by
![COP = \frac{T_{L} }{T_{H} -T_{L} }](https://tex.z-dn.net/?f=COP%20%3D%20%5Cfrac%7BT_%7BL%7D%20%7D%7BT_%7BH%7D%20-T_%7BL%7D%20%20%20%7D)
![COP = \frac{335.9}{335.9 -262.9}](https://tex.z-dn.net/?f=COP%20%3D%20%5Cfrac%7B335.9%7D%7B335.9%20-262.9%7D)
COP = 4.6
Therefore the COP of the system is = 4.6