I=w/12.6r^2 where I is the intensity of light, w is the wattage of the light bulb and r is the distance to the light bulb. Let w
=100 watts and r=2 meters. Find the intensity of the light bulb
1 answer:
Answer:
2.0491 watt per meter square
Step-by-step explanation:
We are given the following in the question:
The intensity of light is given by:
where W is the wattage of the light bulb and r is the distance to the light bulb.
We have to evaluate the intensity of bulb with W = 100 watts and r = 2 meters.
Putting values, we get,
Thus, the intensity of light bulb is 2.0491 watt per meter square.
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AB = √(8^2 + 6^2)
AB = √100
AB = 10
AC = √(8^2 + 15^2)
AC = √289
AC = 17
BC = 9
P= AB + AC + BC
P = 10 + 17 + 9
P = 36 units
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Area of ABC = 1/2 x 8 x 9
A = 36 square units
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To do this we first have to find the unit rate of 2,600.
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Answer:
B, C, and E
Step-by-step explanation:
A. 42/6 = 7 Not correct
B. 42/7 = 6 Correct
C. 108/18 = 6 Correct
D. 40/5 = 8 Not correct
E. 96/16 = 6 Correct