katjimenez katjimenez

03-08-2016
Physics

contestada

the illuminance on a surface is 6 lux and the surface is 4 meters from the light source. What is the intensity of the saurce?

Respuesta :

Edufirst Edufirst

17-08-2016

L = illuminance
A = surface
i = intensity

L = i / A ==: i = L * A

i = 6 lux * 4 m^2 = 24 lumen

Answer Link

Otras preguntas

7th grade math. help

Anthony and Lucas deposited $5,000 into a savings account with 4% interest in euros each year. How much money will Antonio have in the bank if he earns 4% simp

Approximately how much of the femoral head fits in the acetabulum? A) 50%. B) 60%. C) 70%. D) 80%.

The R.E.M. stage of sleep is when people often__________

Quadrupled root of 81 raised to -2

3. Identify the foreign key(s) in the Session table. a. SessionDate b. PatientNum, TherapyCode c. PatientNum, TherapistID d. PatientNum, TherapyCode, TherapistI

hat claim is the author making in paragraph 8? Answer choices for the above question A. We should pay attention to the celebrities who try to make the world a

i was wondering how to solve y= 22x + b? having struggles!

3. Which linear equation represents the line graphed below?

How did the Minneapolis department of public relief provide relief to people during the Great Depression