2. The intensity at which an object is illuminated varies inversely as the square of its distance from the light source. At 1.5 ft from a light bulb, the intensity of the light is 60 units. What is the intensity at 1 ft?

2. The intensity at which an object is illuminated varies inversely as the square of its distance from the light source. At 1.5 ft from a light bulb, the intensity of the light is 60 units. What is the intensity at 1 ft?

College Algebra

10th Edition

ISBN:9781337282291

Author:Ron Larson

Publisher:Ron Larson

Chapter3: Polynomial Functions

Section3.5: Mathematical Modeling And Variation

Problem 7ECP: The kinetic energy E of an object varies jointly with the object’s mass m and the square of the...

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2. The intensity at which an object is illuminated varies inversely as the square of its distance
from the light source. At 1.5 ft from a light bulb, the intensity of the light is 60 units. What is the
intensity at 1 ft?

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