Answer:
(a) 
(b) 
Explanation:
The angular speed is a measure of the rotation speed. Thus, It is defined as the angle rotated by a unit of time:
The arc length in a circle is given by:
s is the length of an arc of the circle, so 
.
Replacing (2) in (1):
a) Now, we calculate the angular speed:
b) We use (1) to calculate the time it takes to make one revolution, which means that 
is 
.
Answer:
Conductors allow electric charges to move freely
Because each case i observed happened due to the experiments that I did with my partner.
c. energy and object has.....
The power exerted by the cyclist is determined as 50 W.
<h3>
Average power exerted by the cyclist</h3>
The power exerted by the cyclist is calculated as follows;
P = FV
where;
- F is the applied force
- V is velocity
P = 20 x 2.5
P = 50 W
Thus, the power exerted by the cyclist is determined as 50 W.
Learn more about power here: brainly.com/question/25263760
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