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Frequency Homework Question.?
A tube with a cap on one end, but open at the other end, has a fundamental frequency of 134.1 Hz. The speed of sound is 343 m/s.
(a) If the cap is removed, what is the new fundamental frequency of the tube?
(b) How long is the tube?
Please include units and workings where possible.
Will happily award a best answer.
1 AnswerPhysics3 years agoPhysics Frequency Question.?
A string that is fixed at both ends has a length of 1.48 m. When the string vibrates at a frequency of 70.3 Hz, a standing wave with five loops is formed. (a) What is the wavelength of the waves that travel on the string? (b) What is the speed of the waves? (c) What is the fundamental frequency of the string?
Please include units and workings where possible.
Will happily award a best answer :)
1 AnswerPhysics3 years agoPhysics question about sound and frequency. Dolphins emit clicks of sound for communication and echolocation.?
A marine biologist is monitoring a dolphin swimming in seawater where the speed of sound is 1527 m/s. When the dolphin is swimming directly away at 9.5 m/s, the marine biologist measures the number of clicks occuring per second to be at a frequency of 2460 Hz. What is the difference (in Hz) between this frequency and the number of clicks per second actually emitted by the dolphin?
If possible please include units and workings.
Happy to award a best answer.
1 AnswerPhysics3 years agoPhysics Q. A bird is flying directly toward a stationary bird-watcher and emits a frequency of 1320 Hz. The bird-watcher, however, hears a?
The bird-watcher, however, hears a frequency of 1410 Hz. What is the speed of the bird, expressed as a percentage of the speed of sound?
If possible, please include units and workings. Will happily award a best answer.
1 AnswerPhysics3 years agoPlease I need help with my physics homework!! I'd be so grateful if you could include workings also, but if not don't worry!!?
One microphone is located at the origin, and a second microphone is located on the +y axis. The microphones are separated by a distance of D = 1.52 m. A source of sound is located on the +x axis, its distances from microphones 1 and 2 being L1 and L2, respectively. The speed of sound is 342 m/s. The sound reaches microphone 1 first, and then, 1.24 ms later, it reaches microphone 2. Find the distances (in m) (a) L1 and (b) L2
2 AnswersPhysics3 years agoPlease help with my physics homework!! If you could show workings that would be great!! Thanks in advance!!?
Suppose 15 boxcars pass by in a time of 10.2 s and each has a length of 13.2 m. (a) What is the frequency at which each boxcar passes? (b) What is the speed of the train?
2 AnswersPhysics3 years agoScience Question. Physics. Please include units and workings if possible.?
A wave traveling along the x axis is described mathematically by the equation y = 0.17sin(9.1πt + 0.85πx), where y is the displacement (in meters), t is in seconds, and x is in meters. What is the speed of the wave?
3 AnswersPhysics3 years agoScience Question. Physics. Please include units and workings if possible.?
The mass of a string is 3.6 × 10-3 kg, and it is stretched so that the tension in it is 220 N. A transverse wave traveling on this string has a frequency of 290 Hz and a wavelength of 0.48 m. What is the length of the string?
1 AnswerPhysics3 years agoPhysics Question about Temperature, Pressure & Volume, please show workings if possible!?
A column of mercury in a barometer has a height of 0.760 m when the pressure is one atmosphere and the temperature is 0.0 °C.
Ignoring any change in the glass containing the mercury, what will be the height of the mercury column for the same one atmosphere of pressure when the temperature rises to 37.5 °C on a hot day?
(This hint was given with the question: The pressure in the barometer is Pressure = ρgh, and the density ρ changes when the temperature changes.)
2 AnswersPhysics3 years agoTwo bars of identical mass are at 30 °C. One is made from glass and the other from another substance.?
The specific heat capacity of glass is 840 J/(kg · C°).
When identical amounts of heat are supplied to each, the glass bar reaches a temperature of 95 °C, while the other bar reaches 297.0 °C.
What is the specific heat capacity of the other substance? (Please show how you got the answer, thank you!)
1 AnswerPhysics3 years agoPhysics question, please help! A steel section of pipeline had a length of 63.4 m and a temperature of 19.8 °C when it was installed.?
What is its change in length when the temperature drops to a frigid -38.2 °C?
1 AnswerPhysics3 years agoThe density of ice is 917 kg/m3. The density of sea water is 1025 kg/m3. A bear climbs onto some floating ice that has a volume of 4.76 m3.?
What is the weight of the heaviest bear that the ice can support without sinking completely beneath the water?
1 AnswerPhysics3 years ago