I found this using the app Socratic. When I took physics in high school it helped me so much.
when the c4 key on a piano keyboard is pressed, a string inside the piano is struck by a hammer and begins vibrating back and fo
2 answers:
Answer:
260 Hz
Explanation:
The frequency of a sound wave is defined as the number of oscillation which is given in cycles per time. Frequency (f) is given by the formula ;
and it is measured in Hertz(Hz)
Given that;
a vibration is caused by a struck string in piano at 260 cycles and Time (T) = 1 seconds
Frequency (f) can be determined as; 260 cycles × 1 seconds
= 260 Hertz (Hz)
Hence, the frequency of the sound wave is 260 Hertz (Hz).
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The proton's electrostatic force exerted on the electron will be 3.5×10¹² N.
<h3>What is the electrostatic force?</h3>It is a force imposed by one charge on another as a result of the field.
The electrostatic force produced by one line charge on another line charge separated by r is determined by the charge potency of each charge as well as the separation distance between them.
The electrostatic force is found as:
Hence, the proton's electrostatic force exerted on the electron will be 3.5×10¹² N.
To learn more about the electrostatic force refer to the link;
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