# Search results

1. ### Measuring the size of a molecule

Hi, Homework Statement I am trying to determine the size of a molecule..by doing the oil drop experiment where we drop a tiny droplet of oil on water covered with a thin layer of powder...and then make calculations based on the diameter of the circle... the droplet forms in oil. The Attempt...
2. ### Measuring speed of sound in air

The signal generator + loud speaker would produce audio waves. But right now the lab does not have a loud speaker. So ill have to make do without
3. ### Measuring speed of sound in air

Ok. Thanks never the less.
4. ### Measuring speed of sound in air

im stumped :confused:
5. ### Measuring speed of sound in air

ohh i thought u meant without using any microphone... So i place the mic a distance x from two people who themselves are a distance y between them. Then I ask them to both clap at the same time. and record the distance between the peaks shown on the Oscilloscope? However, I change x or do I...
6. ### Measuring speed of sound in air

Umm...but wont i still need something to catch the sound wave the 'claps' produce? :confused:
7. ### Measuring speed of sound in air

two people who clap at the same time?
8. ### Measuring speed of sound in air

which is ? :confused:
9. ### Measuring speed of sound in air

So what you are saying is; I connect the microphone to the pre amp. That will amplify the sound waves from the 'clap' and then i monitor the output from the scope? Hmm..i guess i can clap at increasing or decreasing distances from the mic ?
10. ### Measuring speed of sound in air

nope i didnt use the preamp. but how would i use the preamp just for a clap?
11. ### Measuring speed of sound in air

i tried a simple one by connecting two microphones to the oscilloscope keeping a distance x between them and clapping a distance y from both of them. But none of my claps, or any music that i played registered any wave fluctuation
12. ### Measuring speed of sound in air

Yes. The lab sheet just says we have to use a microphone and an oscilliscope. Everything else is dependent on the person doing the experiment
13. ### Measuring speed of sound in air

Hi. I have been given the task to measure the speed of sound in air. The materials available are: 1. Microphone 2. Signal Generator 3. Amplifier 4. Digital Oscilloscope I have looked through google and the simplest exp involves a loudspeaker as well. However I dont have one...
14. ### Newtons third law of motion

Homework Statement A particle of mass 4kg is being towed at a constant speed up a rough plane inclined at 30 degrees to the horizontal by a force 4g N acting parallel to the slope. At the top of the slope the particle moves onto a rough horizontal slope with the same coefficient of friction...