Answer:Reducing mass i.e. water
Explanation:
Frequency For given mass in glass is given by
where k =stiffness of the glass
m=mass of water in glass
from the above expression we can see that if mass is inversely Proportional to frequency
thus reducing mass we can increase frequency
To solve this problem we must basically resort to the kinematic equations of movement. For which speed is defined as the distance traveled in a given time. Mathematically this can be expressed as
Where
d = Distance
t = time
For which clearing the time we will have the expression
Since we have two 'fluids' in which the sound travels at different speeds we will have that for the rock the time elapsed to feel the explosion will be:
In the case of the atmosphere -composite of air- the average speed of sound is 343m / s, therefore it will take
The total difference between the two times would be
Therefore 3.357s will pass between when they feel the explosion and when they hear it
Answer:
Explanation:
The equation for the linear impulse is as follows:
where is impulse,
is the force, and
is the change in time.
The force, according to Newton's second law:
and since
the force will be:
replacing in the equation for impulse:
we see that is canceled, so
And according to the problem ,
and the mass of the passenger is
. Thus:
the magnitude of the linear impulse experienced the passenger is