Answer:
Option B) It decreases as someone moves away from earth's surface.
Explanation:
The atmospheric pressure at the surface of the earth is at maximum, it is seen that as we move away from the surface of the earth the pressure decreases. As on the top of mountains the atmospheric pressure is found to be low as compared to the surface of the earth.
It is assumed that the atmospheric pressure is caused due to hydrostatic measurements where the changes caused by weight of air are measured.
Also, it is observed that when there is an elevation, the atmospheric pressure decreases.
Answer:
Acceleration = Change in Velocity/Time
Change in Velocity = 36-18 = 18 km/h=5 m/s
Time= 5 Seconds
Acceleration = 5/5= 1 m/s2
Equation of motion,s=ut+(1/2)at2
u=18 km/h=5 m/s
t=5 s
a=1 m/s2
s= (5*5)+(1/2*1*5*5)
s=25+12.5 i.e., s=37.5 m
Hope you are clear with my explanations
Answer: Later
Explanation:
In cold weather the air is more dense and that is what causes the cold. It is hard for sound waves to travel through it.
Answer: 187.68 m
Explanation:
Given
Time period
The time period of a pendulum is given by
where L=height of tower
Put values