A tuning fork of frequency 200 hertz can resonate if an incident sound wave has a frequency of
A) 100 hertz.
B) 200 hertz.
C) both of these
D) neither of these
Answer: C
Physics & Space Science
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If life exists on Mars today, it will most likely be found
A) on the surface B) at the center of the planet C) beneath the surface where liquid water may still exist D) floating high in the atmosphere
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A solid uniform sphere of mass 120 kg and radius 1.7 m starts from rest and rolls without slipping down an inclined plane of vertical height 5.3 m. What is the angular speed of the sphere at the bottom of the inclined plane?
A) 5.1 rad/s B) 8.7 rad/s C) 9.7 rad/s D) 6.1 rad/s
Physics & Space Science
The audible range of sound is from 20 Hz to ______________ kHz
Fill in the blank(s) with correct word
Physics & Space Science
A diverging lens cannot be used as a magnifying glass
Indicate whether the statement is true or false
Physics & Space Science