Birth rates: moderate
Death rates: low
population growth: high
Most developed countries experience a slower economic growth
compared the developing counties. Economic growth is very different from the
economic development. Development will elevate the people from the low standards
of living to proper employment which has suitable housing while growth does not
consider natural resources that will lead to pollution, diseases and
congestion. Development on the other hand is concerned with sustainability
meaning that it is meeting the needs of the present without compromising the future
needs.
Answer:
A. 29.4 Joules
Explanation:
Given parameters:
Mass of the book = 1.5kg
Height of lift = 2m
Unknown:
Potential energy acquired = ?
Solution:
Potential energy is the energy due to the position of a body.
Mathematically;
Potential energy = mgh
m is the mass of the body
g is the acceleration due to gravity = 9.8m/s²
h is the height
Potential energy = 1.5 x 9.8 x 2
Potential energy = 29.4J
