Part a)
Flow rate is defined as rate of volume flow
it is determined by

now if the radius of pipe is reduced then we assume here that liquid flow is ideal flow here and there is no change in the density of liquid.
So here we know that since mass is always conserved
so

so we have


now we can say from above equation that there is no effect on the flow rate is we change the radius of pipe
Part b)
now in order to find the speed of flow'




so final speed will be

here we have n = 3

so flow speed will be 9 times more than initial speed
When the pedaling cyclist uses a generator (dynamo) to light his bicycle lamp, the energy change is from mechanical to electrical.
<h3>Law of conservation of energy</h3>
The law of conservation of energy states that energy can neither be created nor destroyed but can be converted from one form to another.
Thus, we can conclude the following as it relates to energy changes;
- When the pedaling cyclist uses a generator (dynamo) to light his bicycle lamp, the energy change is from mechanical to electrical.
Learn more about conservation of energy here: brainly.com/question/166559
Answer:
Final velocity v = 4 m/s
Explanation:
Given:
Initial velocity u = 0 m/s
Acceleration a = 0.16 m/s²
Distance s = 50 m
Find:
Final velocity v
Computation:
Using; v² = u² + 2as
v² = (0)² + 2(0.16)(50)
v² = 16 m/s
v = 4 m/s
Final velocity v = 4 m/s
The forces between the apple and Earth are the same in magnitude. Force is the same either way, but the corresponding accelerations of each are different.
Answer:
Electric field at a distance of 1.45 cm will be 
Explanation:
We have given the distance d = 1.45 cm = 0.0145 m
And the potential difference 
There is a relation between potential difference and electric field
Electric field at a distance d due to a potential difference is given by
, here E is electric field, V is potential difference and d is distance
So 