Plane as 63cm of HG while a ground observer records a reading of 75cm of Hg with his barometer. assuming that the density of air is constant, calculate the height of the plane above the ground. (Take the relative densities of air and mercury as 0.00136 and 13.6 respectively
A. 120m
B. 138m
C. 1200m
D. 274m
E. 120,000m
Correct Answer:
Option E – 120,000m
Explanation
Pressure change for air = pressure change for mercury
hpg = Hpg
h x 0.00136 x g = (75 – 63) x 13.6 x g
h= (12×13.6)/0.00136
= 120,000m
Veterinary medicine is the branch of medicine that deals with the prevention, diagnosis, and treatment…
Anthropology is the scientific study of human beings and their cultures. It encompasses a wide…
Sociology is the scientific study of human society, culture, and behavior. It examines the social…
Social Work is a profession dedicated to helping individuals, families, and communities to cope with…
Religious studies is an academic discipline that explores the beliefs, practices, and history of various…
Public administration is the field of study and practice that focuses on the organization and…