The initial angular speed of the fan will be 55.0 rad/sec. The angular speed of the fan decreases to 84.7 rad/s in 2.96 s.
<h3>What is angular acceleration?</h3>
Angular acceleration is defined as the pace of change of angular velocity with reference to time.
Given data;
Final angular speed,
Initial angular speed, 
Time period,t= 2.96 s
Angular deceleration = 47.2 rad/s²
Hence the initial angular speed of the fan will be 55.0 rad/sec.
To know more about angular acceleration refer to the link ;
brainly.com/question/408236
#SPJ
A non <span>foliated </span>rock has interlocking grains with no specific pattern.
THE CHANGE IN EARTH SURFACE IS DUE TO VIBRATION AND COLLISION IN EARTH TECTONIC PLATES
Explanation:
- VIBRATION is the change in the stable state/equilibrium state caused by increased pressure in a particular object or a surface due to electro magnetic wave
- COLLISION is the meeting point of two or more surfaces or the objects
- During earthquake the tectonic plates of the earth surface begins to collide or cause any irregular drastic movements
- This is due to the vibration caused by earthquake
- This causes the shake in the upper surface which results in construction damage and calamities
- This causes drastic change in the surface of the earth.
A. Balloons can be filled with air.
C. Air has mass.
We know, Power = Voltage * Current
P = 660 * 12 = 7920 watt
In short, Your Answer would be Option A
Hope this helps!
