Answer:
Recessed incandescent luminaires not marked type ic and those marked for installing directly in insulated ceilings must not have insulation over the top of the luminaire.
Explanation:
Depending on how they interact with insulation, lighting fixtures are rated at various levels. Non-IC rated lighting fixtures can accommodate higher wattage bulbs, but they also pose the greatest fire risk when used with the incorrect insulation.
In locations with insulation, light fixtures that are not IC rated may be installed. But there is a condition. The distance between the fixture and any insulation should be 3 inches. But the 3 inch gap in the insulation would negate the goal of insulation by producing a lot of uninsulated space, so this defies logic. Building a box-style cover to cover the fixture on the attic side is one option to fix this. Drywall or foil-faced foam insulation can be used to create this box. After the cover is put in place, insulation can be added for maximum effectiveness.
To learn more about recessed incandescent luminaries. Click brainly.com/question/17218799
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Answer:
![d_1 = 16 d](https://tex.z-dn.net/?f=d_1%20%3D%2016%20d)
Explanation:
As we know that initial speed of the fall of the stone is ZERO
![v_i = 0](https://tex.z-dn.net/?f=v_i%20%3D%200)
also the acceleration due to gravity on Mars is g
so we have
![d = v_i t + \frac{1}{2}gt^2](https://tex.z-dn.net/?f=d%20%3D%20v_i%20t%20%2B%20%5Cfrac%7B1%7D%7B2%7Dgt%5E2)
now we have
![d = 0 + \frac{1}{2}g t^2](https://tex.z-dn.net/?f=d%20%3D%200%20%2B%20%5Cfrac%7B1%7D%7B2%7Dg%20t%5E2)
now if the same is dropped for 4t seconds of time
then again we will use above equation
![d_1 = 0 + \frac{1}{2}g(4t)^2](https://tex.z-dn.net/?f=d_1%20%3D%200%20%2B%20%5Cfrac%7B1%7D%7B2%7Dg%284t%29%5E2)
![d_1 = 16(\frac{1}{2}gt^2)](https://tex.z-dn.net/?f=d_1%20%3D%2016%28%5Cfrac%7B1%7D%7B2%7Dgt%5E2%29)
![d_1 = 16 d](https://tex.z-dn.net/?f=d_1%20%3D%2016%20d)
Answer:
drag and drop each feature into the correct category