Why can water dissolve some ionic compounds, like NH4Cl, as well as some nonionic compounds, like methanol?
2 answers:
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(a) The angular speed of the rotation is 12.57 rad/s
(b) The period of the rotation is 0.5 s.
(c) The speed of the tip of your finger is 15.08 m/s.
<h3>Angular speed of the rotation</h3>The angular speed of the rotation is calculated as follows;
ω = 2πN
where;
- N is number of revolutions
ω = 2π x (2) = 4π = 12.57 rad/s
<h3>Period of rotation</h3>v = ωr
v = 12.57 x 1.2
v = 15.08 m/s
Learn more about angular speed here: brainly.com/question/6860269