Velocity is the rate of change of position with respect to time, whereas acceleration is the rate of change of velocity. Both are vector quantities (and so also have a specified direction), but the units of velocity are meters per second while the units of acceleration are meters per second squared.
Cr(chromium) is number 24, meaning that it has 24 protons, and 24 electrons. You subtract the atomic number from the atomic mass to get the number of neutrons. 50-24=26 neutrons. There are other isotopes that have more neutrons, as the mass on the periodic table is 52.
Answer:
<h2>
<em>220.698Hz</em></h2>
Explanation:
The fundamental frequency f₀ is expressed as f₀ =V/2L where;
V is the speed of the string =
m is the mass of the string
L is the length of the string
T is the tension in the string
f₀ = 
Given datas
m = 5.69g = 0.00569 kg
T = 440N
L = 0.630 m
Required
Fundamental frequency of the steel piano wire f₀

<em>Hence the frequency of the fundamental mode of vibration of the steel piano wire stretched to a tension of 440N is 220.698Hz</em>
All of the above .........