Sickle-cell disease is common in tropical and sub-tropical regions because being a carrier, carrying a single sickle-cell mutation (sickle cell trait), affords some resistance to malaria.
color of the indicator in asolution of ph 3 will be yellow.
What is your question exactly? im confused
Answer:
tanΘ
Explanation:
Let gravitational acceleration be g. When the avalanche starts to occur, the gravity force that is parallel to the slope is the same as friction force.
Gravity force that is parallel to the slope can be written as:
G = mgsinΘ
The friction force is the product of normal force and coefficient:

where normal force N is the gravity in the direction perpendicular to the slope

As stated before, gravity force that is parallel to the slope is the same as friction force:


