Answer:
Explanation:
Given:
<u>According to the Doppler's effect:</u>
The sound is reflected from the wall and the source is moving towards the wall and observer is also riding the same source.
The velocity of the observer,
Answer :
Explanation :
It is given that,
Charge,
Velocity of Aircraft, (in west)
Magnetic field, ( in north )
Using the relation as :
Magnetic force is ,
Using Right hand thumb rule, the direction of force is in the plane perpendicular to the velocity and the magnetic field i.e. .
Complete Question
When you ascend or descend a great deal when driving in a car yours ears "pop," which means that the pressure behind the eardrum is being equalized to that outside. If this did not happen, what would be the approximate force on an eardrum of area .50 cm2 if a change in altitude of 950 m takes place?
Answer:
The value is
Explanation:
From the question we are told that
The area of the ear drum is
The change in altitude is
Generally the change in pressure is mathematically represented as
This can also be mathematically represented as
So
=>
=>
Here is the density of dry air with value
So
=>