Hello,
I've just gone over some of these TBR physics questions, but this one has me stuck. The question is:
"In Trial 5, the height of the water was 75.0 cm. The tuning fork from which other trial could be used to produce a resonance for a water height of 75.0 cm? (the total tube length was 1m)"
a. Trial 1 - Frequency = 1020 Hz, water height = 91.7 cm
b. Trial 2 - Frequency = 850 Hz, water height = 90.0 cm
c. Trial 3 - Frequency = 680 Hz, water height = 87.5 cm
d. Trial 4 - Frequency = 510 Hz, water height = 83.3 cm
The answers says it's trial 1, which has 3x the frequency given the same amount of air in the tube... However, I don't see how it's a better answer than c, which would be 2x the frequency.
I'd be grateful if someone could explain this.
(And also, if Berk ever sees this - I think your last paragraph on p 13 has contradictory info to the chart on the next page with regards to the vs signs... unless I'm getting this all wrong :s)
I've just gone over some of these TBR physics questions, but this one has me stuck. The question is:
"In Trial 5, the height of the water was 75.0 cm. The tuning fork from which other trial could be used to produce a resonance for a water height of 75.0 cm? (the total tube length was 1m)"
a. Trial 1 - Frequency = 1020 Hz, water height = 91.7 cm
b. Trial 2 - Frequency = 850 Hz, water height = 90.0 cm
c. Trial 3 - Frequency = 680 Hz, water height = 87.5 cm
d. Trial 4 - Frequency = 510 Hz, water height = 83.3 cm
The answers says it's trial 1, which has 3x the frequency given the same amount of air in the tube... However, I don't see how it's a better answer than c, which would be 2x the frequency.
I'd be grateful if someone could explain this.
(And also, if Berk ever sees this - I think your last paragraph on p 13 has contradictory info to the chart on the next page with regards to the vs signs... unless I'm getting this all wrong :s)