Answer:
The maximum speed of ball is 0.784 m/s.
Explanation:
Given that,
Amplitude = 0.552 m
Angular frequency = 1.42 rad/s
We need to calculate the maximum speed of ball
Using formula of speed

Where, A = amplitude
= angular frequency
Put the value into the formula


Hence, The maximum speed of ball is 0.784 m/s.
Light / Radiation. The light radiation defines its color. Thermal radiation for its temperature and the overall appearance of the wavelengths the star emits gives off the info from where astronomers and scientist are able to build up knowledge on the age and current state of the stars
Answer:

Explanation:
It is given that,
Diameter of cylinder, d = 6.6 cm
Radius of cylinder, r = 3.3 cm = 0.033 m
Acceleration of the string, 
Displacement, d = 1.3 m
The angular acceleration is given by :



The angular displacement is given by :



Using the third equation of rotational kinematics as :

Here, 



Since, 1 rad/s = 9.54 rpm
So,

So, the angular speed of the cylinder is 571.42 rpm. Hence, this is the required solution.
That it will erupt upon contact. Hope it helps!