Answer:
The fluid friction or drag can be reduced are minimised by giving special shape called streamlined shape to the objects which Move through fluids like air or water
Answer: 324.135 kJ
Explanation:
Given
Mass of dropping is 
The initial height of dropping is 
The final height of dropping 
Gravitational potential energy is the function of height i.e.

Change in Gravitational Energy is

Answer:
IMA = 2
Explanation:
Given the following data;
Resistance gear = 54 teeth
Effort gear = 23 teeth
To find the ideal mechanical advantage (IMA);
IMA = number of teeth on the resistance gear/number of teeth on the effort gear
Substituting into the equation, we have;
IMA = 54/23
IMA = 2.35 ≈ 2
Therefore, the ideal mechanical advantage (IMA) of this two-gear system is 2.
Answer: it is called a open circuit
Explanation:
Answer:
Indian girls
Explanation:
I don't know what do you expect I don't know this