tgibs1047 tgibs1047
  • 25-04-2024
  • Mathematics
contestada

We also a lamp (consider as black body) that has temperature 5700K n luminous efficacy 37%. We cut a piece of the lamp and we put it two meters away from a point we need illumination 800lx. How big this piece should be?

Relax

Respuesta :

Otras preguntas

Write to Explain-Lucy danced for an hour, practicing ballet, jazz, and tap. She practiced twice as long on jazz as tap. She practiced ballet as many minute as t
The Office of the Director of National Intelligence was created in 2005 as a result of the September 11, 2001 attacks. What does this office do? a. creates defe
Which is greater 5000 ml or 40L
The tightening of credit and a sharp decrease in farm prices touched off the Panic of 1819. a. True b. False
researchers counted 8,912 monarch butterflies on one branch of a tree at a site in Mexico. They estimated that the total number of butterflies at the site was 1
What kinds of scientific investigations involve making observations?
What is the value of the expression when a = 5 and b = 3? 4a^2 5b^3 a. 55 b. 74 c. 81 d. 145
What is the name of the answer when we add
Write the expression (4X -2)•6(2X +7)in the standard form of a quadratic expression
What was the name given to Ronald Reagan’s foreign policy?