Answer:
The percentage error is given by 99.9 %
Explanation:
Given:
Mass of object
kg
Height
km
From the formula of potential energy,

Where 

Here true value of potential energy,

Approximate value of student,

Absolute error is given by
= true value - approximate value
= 
= 
Hence percentage error,

%
%
Therefore, the percentage error is given by 99.9 %
Newtons Second Law of Motion
Hence the expression of ω in terms of m and k is

Given the expressions;

Equating both expressions we will have;

Divide both equations by 2π

Square both sides

Take the square root of both sides

Hence the expression of ω in terms of m and k is

Answer:

Explanation:
The system ball-pin is modelled by the Principle of Moment Conservation:

The velocity of the bowling ball after the collision is:

Answer:
Acid rain results when sulfur dioxide (SO2) and nitrogen oxides (NOX) are emitted into the atmosphere and transported by wind and air currents. The SO2 and NOX react with water, oxygen, and other chemicals to form sulfuric and nitric acids. These then mix with water and other materials before falling to the ground.
Explanation: