Answer: (4) Resonance
Explanation:
Resonance is a phenomenon in which an external force or a vibrating system forces another system around it to vibrate with greater amplitude at a specified frequency of operation.
Some Examples of Resonance
Musical Instruments
The best examples of resonance can be observed in various musical instruments around us. Whenever any person hits, strikes, strums, drums or tweaks any musical instrument, the instrument is set into oscillation or vibration at the natural frequency of vibration of the instrument. A unique standing wave pattern defines each frequency of vibration as a specific instrument. These natural frequencies of a musical instrument are known as the harmonics of the specified instrument. If a second interconnected object or instrument vibrates or oscillates at that specified frequency then the first object can be forced to vibrate at a frequency higher than its natural harmonic frequency and as such, resonance occurs.
Aoelian Vibration (Harp)
Wind blowing across suspended power lines may cause the power lines to vibrate at their natural frequency. This often produces audible sound waves showing that resonance has occurred due to the frequency of vibration of the wire coninciding with that of the wind.
I believe the answer is High thermal energy.
If a substance has a low specific heat, it means it will heat or cool quickly than a high heat compound.
High value means that it takes more energy to raise or lower its temperature, while a low value means that it does not take very much energy to heat or cool it. Adding heat to a low specific heat compound will increase its temperature much more quickly than adding heat to a high specific heat compound.
Answer:
The first force that the bungee jumper experiences is gravity, which pulls down on everything and makes the jumper fall. The gravitational force is almost exactly constant throughout the jump. During the bungee jumper's fall, he or she also experiences a force due to air resistance.
Explanation:
A) turning
b)greater
c) greater
d) force*distance
e)Nm
Answer:
1.) 440 Hz
2.) 659.3 Hz
Explanation:
1.) Given parameters are:
wavelength = 0.77955 m.
speed of sound = 343.00 m/s
Frequency = speed/ wavelength
Substitute speed and wavelength into the formula
Frequency = 343/ 0.77955
Frequency = 439.99
Frequency = 440 Hz approximately
2.) The parameters given are:
wavelength = 0.52028 m.
speed of sound = 343.00 m/s
Using the same formula
Frequency = speed/wavelength
Substitute all the parameters into the formula
Frequency = 343 / 0.52028
Frequency = 659.3 Hz approximately
The pitch of a note depends on the frequency of the sound waves.
The pitch of a sound increases as the frequency of the sound waves increases.
