Answer:
SELECT distinct VendorName FROM Vendors
WHERE VendorID IN (
SELECT VendorID FROM Invoices
)
Explanation:
convert 40db to standard gain
AL=10^40/20=100
calculate total voltage gain
=AL×RL/RL+Ri
=83.33
38.41 DB
calculate power
Pi=Vi^2/Ri Po=Vo^2/RL
power gain= Po/Pi
=13.90×10^6
The best step for the engineers to make next is option D. Begin to design an airplane using this metal.
<h3>What is the metallic is plane parts?</h3>
Aluminum and its alloys are nevertheless very famous uncooked substances for the production of business planes, because of their excessive electricity at exceedingly low density. Currently, excessive-electricity alloy 7075, which includes copper, magnesium and zinc, is the only used predominantly withinside the plane industry.
The solution is D, due to the fact even as it's far crucial to marketplace the fabric and ensure humans are inquisitive about buying, they first want to attempt to layout aircraft the usage of this fabric. There isn't anyt any use promoting an aircraft constituted of this material_ if a aircraft can not be built.
Read more about the aircraft:
brainly.com/question/5055463
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