Homework Statement
initial amount = $450 000
interest rate = 4.8% per month
withdrawal = $3600 per month
This is a question on an old test paper. It is calculator assumed.
We use Casio classpad calculators.
a) amount remaining after ten years?
$173462.47
b)time to exhaust account?
14.5 years...
The persons finger slides and sticks along the surface of the glass as they trace it around the rim. This passes energy on to the glass and the glass resonates. The vibrating glass forces air molecules to vibrate at the same frequency as the glass and therefore produce the sound waves that can...
Oh sorry,
the experiment is to find out the relationship between the sound produced by running a finger around a wine glass and the frequency of that sound.
Observation: the frequencies of the wineglasses with only a small amount of water decreased very slowly where as lots of water decreased...
Homework Statement
I calculated some wavelengths for a wine glass I am using in an experiment and they came out in meters just like they should but the wave length out does the diameter of the glass(~9cm) by about 46cm... Is this ok or is there another way to calculate for a wine glass?Homework...
I'm not 100% sure what I must/should change to be able to show these peaks.
I am very limited to what my school or I can provide for this experiment (we are only a young small school) so many modifications like the CO2 wouldn't be possible but I will most defiantly research into it as much as I...
So I would be safe to assume (hypothesis wise) that an increase in the water level in each glass would decrease the frequency recorded for that glass?
Though I did find that the frequency only decreased when the glasses were about 3/4's full and anything before that did not affect the frequency...
I was planing to run my finger around the top...
We worked out how to use the equipment available and were able to record the frequency of 6 different glasses with no, 200ml, and for those big enough 300 and 400ml.
The frequency's obliviously changed when we changed the water level. We were...
I had to come up with a relatively simple physics experiment for an investigation and chose to do a water glass experiment, to make music or at least sound with a wine glass.
I know that when the vibration of the air inside the glass matches the resonant frequency of the glass it produces...
I have to finish my investigation and the outline has something called a Theory review. It defines it as: a story that generates interest in the reader for the field of your research and link to practical investigation to follow.:confused:
Now this maybe very simple but I'm not sure what kind...
So I was way off. :)
I re-did after your last reply and got:
120*3.9=120*9.8*sin30-Ff
468=588-Ff
Ff=120N
N=1,018.45
I'm not sure if this then goes into the u equation but that's what i did:
u=120/1,018.45
u=0.1178
or does the answer above Ff=120N the overall answer to the question...
ok so if i put that all together i get an answer to my original problem of 3971.9N? does that sound right? or am i so far off its not funny?
Thank you :) so confused right now lol
In unloading a truck a man allows a 120kg crate to slide down a plank inclined at 30.0o to the horizontal. The crate accelerates at 3.90ms-2. What is the size of the frictional force?
I know I need an equation for frictional force on an incline plane to slove this but that's where my problem...