Marks Questions
5. 2076 Set B Q. No. 6a Find the condition that a line
ax + by + c = 0 may be...
Mathematics, 17.11.2020 09:40 rachelreed
Marks Questions
5. 2076 Set B Q. No. 6a Find the condition that a line
ax + by + c = 0 may be normal to the parabola y2 = 4mx.
Answers: 1
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The decibel level of sound is 50 db greater on a busy street than in a quiet room where the intensity of sound is watt/m2. the level of sound in the quiet room is db, and the intensity of sound in the busy street is watt/m2. use the formula , where is the sound level in decibels, i is the intensity of sound, and is the smallest sound intensity that can be heard by the human ear (roughly equal to watts/m2).
Answers: 1
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Answers: 2
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