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Two timpani (tunable drums) are played at the same time. One is tuned so that when it is struck, sound is produced that has a wavelength of 2.20 m. The second drum produces sound with a wavelength of 2.08 m. If the speed of sound in air is 343 m/s, what beat frequency is heard?
Neglect air resistance, as well as any energy absorbed by the pole, and clarify her altitude as she crosses the bar.
the note middle c on a piano has a frequency of 512 hz in the fundamental tone. suppose that the string that produces
An airplane travels at speed of 125 m/s in calm air. The plane wants to undergo a change of displacement delta x= 183 km i. How lond will it take the plane to reach its destination
A geiger counter registers a count rate of4,000 counts per minute from sample of a radiosotope. twelveminutes later the count rate is 1000 counts per minute.what is thehalf-life of the radiosotope?
When a 79-m-long metal pipe is heated from 14 °C to 39 °C, it lengthens by 2.56 cm. Determine the linear expansion coefficient
a transformer connected to a 120-v rms ac line is to supply 12. v rms to a portable electronic device. the total
a parallel plate air capacitor has a capacitance of 300 pf and a charge of magnitude of .025 uc on each plate. the
the drawing shows six point charges arranged in a rectangle. the value of q is 3.89 oc and the distance d is 0.481 m.
Three charges, q1=2.0x10^-8 C, q2= -3.0x10^-8 C, and q3= -4.0x10^-8 C, are located on the y-axis, Find the resultant force exerted on the third charge q3 by the other two charges
When a potential difference of 166 V is applied to the plates of a parallel-plate capacitor, the plates carry a surface charge density of 32.0 nC/cm2. What is the spacing between plates.
During a ride on the gravitron, a person finds herself stuck against the wall as she spins around with a frequency of 26.00 rpm, What is the diameter of the gravitron ride
An air-filled parallel-plate capacitor has plates of area 2.20 cm2 separated by 0.50 mm. What is the magnitude of the uniform electric field between the plates
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