physics

The human eardrum has an area of 5.0×10–5 m2. (a) What is the sound power received when the incident intensity is the minimum perceivable, 1.0×10–12 W/m2? (b) What is the sound power at the eardrum for conversational speech, which has a sound level of 65 dB? (c) What is the sound power at the threshold of pain, 140 dB? answer to all parts in Watts pls. thanks

  1. 👍
  2. 👎
  3. 👁

Respond to this Question

First Name

Your Response

Similar Questions

  1. science

    What happens to carbon in plants when the plants die? The carbon is released into the soil, but it is not used again. The carbon will be released into the soil for use by the next generation.*** The carbon is not released; it is

  2. Physics

    A receiving antenna becomes misaligned by 30° to its original position. The power of the received signal in this new position is 12µW. Wavelength = 0.016 m I calculated the power received in the original position as 1.04 x 10^-5

  3. Physic

    A fan at a rock concert is 30 m from the edge of the stage. The sound intensity level at the edge of the stage is 110 dB. The fan's eardrums have a diameter of 8.4mm. How much energy is transferred to each eardrum in one second?

  4. PSYCHOLOGY

    What is the basic function of the outer ear? a. to protect the hair cells b. to concentrate and funnel sound waves to the eardrum*** c. to amplify low intensity sounds to detectable levels d. to filter out high-intensity sound

  1. Physics(Please respond)

    A source emits sound uniformly in all directions. There are no reflections of the sound. At a distance of 12 m from the source, the intensity of the sound is 1.7 × 10-3 W/m2. What is the total sound power P emitted by the source?

  2. Physics

    Which statements about traveling waves are TRUE? Choose all that apply. a) A traveling wave transfers energy from one point to another. b) A speaker that beams its sound forward into a small area produces a louder sound. c) The

  3. Physics please check

    As you climb a mountain, your ears "pop" because of the changes in (a) In which direction does your eardrum move as you climb up? inward outward eardrum does not move Give your reasoning. I think the eardrum moves outward because

  4. physics

    A stereo speaker represented by P in Figure 13-22 emits sound waves with a power output of 130.0 W. What is the intensity of the sound waves at point x when r = 7.8 m? W/m2

  1. Physics

    The intensity of a certain sound at your eardrum is 0.0030 W/m^2. Calculate the rate P at which sound energy hits your eardrum. Assume that the area of your eardrum is about 51 mm^2. I found this to be 1.53x10^-4 using I=P/A What

  2. physics

    A diver swims to a depth of 3.2 m in a freshwater lake. What is the increase in the force pushing in on her eardrum, compared to what it was at the lake surface? The area of the eardrum is 0.60 cm2.

  3. Physics

    A fan at a rock concert is 45.0 m from the stage, and at this point the sound intensity level is 108 dB. Sound is detected when a sound wave causes the tympanic membrane (the eardrum) to vibrate . Typically, the diameter of this

  4. Physics. Please!!

    If the force on the tympanic membrane (eardrum) increases by about 1.50 N above the force from atmospheric pressure, the membrane can be damaged. When you go scuba diving in the ocean, below what depth could damage to your eardrum

You can view more similar questions or ask a new question.