Applied Physics

The wavelength of a sound wave in a certain material

as measured is 18 cm. The frequency of the wave is

1900 Hz. Compute the speed of sound wave?

• 342 m/s

• 542 m/s

• 400 m/s

• 300 m/s

A steel wire 2 meters long has a mass of 20 grams and is stretched with a tension of 1000 Newton. What is the propagation of a transverse wave in the wire? Assume the linear density of steel at 0.01 kg/m

• 422 m/sec

• 329 m/sec

• 316 m/sec

• 300 m/sec

• 3.02 N

• 1.51 N

• 2.30 N

• 5.11 N

• 120 m/s

• 150 m/s

• 200 m/s

• 240 m/s

A string vibrates in 5 segments to a frequency of 460

Hz. What frequency will cause it to vibrate in 2

segments?

• 1150 Hz

• 84 Hz

• 92 Hz

• 575 Hz

What prefix refers to 10 to the negative 18^th power?

• atto

• femto

• pico

• nano

• 14.62 s

• 11.87 s

• 12.45 s

• 17.54 s

• 134 m/s

• 313 m/s

• 314 m/s

• 343 m/s

• 543.7 m/s

• 321.7 m/s

• 478.6 m/s

• 447.5 m/s

• 94.8

• 80.5

• 78.7

• 75.4