What is the sound intensity at the position of microphone

Reference no: EM13341707

A concert loudspeaker suspended high off the ground emits 42 W of sound power. A small microphone with a 1.0 cm2 area is 43 m from the speaker. (a) What is the sound intensity at the position of the microphone? (b) How much sound energy impinges on the microphone each second?

Reference no: EM13341707

Questions Cloud

Post to the ledger accounts : Bridgette Keyes is a licensed dentist. During the first month of the operation of her business, the following events and transactions occurred.

What are the highest and lowest frequencies heard by student : A physics professor demonstrates the Doppler effect by tying a 650 Hz sound generator to a 1.1 m long rope and whirling it around her head in a horizontal circle at 100 rpm.

Explain how many unshared electron pairs must be included : how many unshared electron pairs must be included in the lewis structure for water , H2O? a-0 b-1 c-2 d-3 f-4

Mass media and healthcare quality : Mass Media and Healthcare Quality

What is the sound intensity at the position of microphone : A concert loudspeaker suspended high off the ground emits 42 W of sound power. A small microphone with a 1.0 cm2 area is 43 m from the speaker. (a) What is the sound intensity at the position of the microphone

Post the journal entries to t-accounts : Purchased furniture and equipment costing $30,000. A cash payment of $10,000 was made immediately; the remainder will be paid in 6 months.

What is the goal of the eoq model : What is the goal of the EOQ model, why does a firm hold "safety stock and what costs are a firm trying to balance when it decides on how much safety stock to hold?

What is the disks maximum speed at amplitude of transducer : An ultrasonic transducer, of the type used in medical ultrasound imaging, is a very thin disk (m = 0.14 g) driven back and forth in SHM at 1.1 MHz by an electromagnetic coil.

Explain is the reaction exothermic or endothermic : the value of deltaH for the reaction below is -72kj .how much of heat is released when 3.0 mol of HBr is formed in this reaction . is the reaction exothermic or endothermic

User Account

All Pages